However, if you already have drainage issues in the red zone, why not bite the bullet, do the job properly (as appears to be your way) and install some proper soakaway crates. It doesn't look like it is between the two layers of bricks and it shouldn't be level with the existing concrete path. Veliki izbor pokrivnih rešetki u četiri materijala izrade. Supply and erect all necessary formwork and shuttering. In fact, we have to put an aco drain in anyway I believe in order to not leave 2 courses of engineering bricks. I cant increase the digging out to get the correct level due to retaining wall. Patio level with dpc We are wanting to raise our patio level with the french doors. Casa Grande, AZ 85122. cover constructed on a drain or sewer that permits the introduction of cleaning and inspection equipment from surface level, but does not provide access for personnel. ACO Drain® – robust durable trench drains for all applications; Understanding slip resistance; ACO. All the drainage has been checked and, while we did find a few problems, these have now been rectified and the problem has not gone away. Jebel Ali Free Zone Dubai, Street 100,. . I am thinking it would be better to slope it down slightly into an ACO drain up against the house. Damp Proof Course or DPC is the protective layer applied to prevent the rising of moisture to the walls from the ground due to capillary action. Country. ACO Aquaduct Custom built fiberglass trench drainage. ACO TramDrain 200 is a higher-capacity drainage system that is also in place in this light rail system. OIF-CFP2-ACO-01. KlassikDrain is sold as channel only. help anyone thanks Raise level externally but have a gap adjacent to the wall with a gravel area at normal level (150 below dpc). Information pertaining to the Iowa Legislature as well as the Executive and. Climate change brings us face to face with challenges to respond to new environmental influences by developing innovative solutions. Mentor, OH 44060. This system of the Damp Proof Course involves fluid or liquid being injected into the wall to stop the dampness from the ground from rising above the damp proof course acting as a water-repelling layer. Sometime the DPC can remain intact, but the DPC can be bridged. Would aco drains be reccomended at the front of the property, given the slope is away from the house or would it be sufficient to dig below the DPC and air brick then line with shingle to soak into the. The damp proof course may be horizontal or vertical. Savska cesta 103A, 10360 Sesvete t: 01 2700 140 | e: [email protected] drain can be installed between the sill and external landscaping flush with the level floor or hidden under the finishes. This ACO BrickSlot HexDrain is a slot drain channel drainage system that seamlessly clips together and requires no additional fixings, with a 500mm mark for an easy-cutting guide. NHBC Standards Chapter 4. Yes fitting an aco type drain channel around the conservatory should help with this. 1. Step 1: Prepare the area for your drain. High mechanical and chemical resistance. The old paving was at the same level as the DPC, that's why I. The bridged DPC continues on around the corner of the house also. Manufactured from recycled polypropylene, ACO DoorWay Drain eliminates water ponding at house entrances. Díky ACO odvodňovacím systémům, které respektují vodní cyklus, je možné vodu nejen. ACO New Zealand participates in a variety of trade shows, seminars and other events. If it isn’t, you don’t necessarily need a soakaway at the bottom by the road. There will be an aco drainage channel installed on the patio immediately in front of the retaining wall. We have had 2 landscapers to quote for a new patio. Aco drain to 110mm connectors are available, basically an end cap for the Aco drain with a 110mm spigot on it, which will mate with the boss on the Bottle gulley to join the channel drain to the gulley. the gap between the underside of the door and unfinished floor should be between 10mm and. Gradients from 1 in 40 to 1 in 110 will normally give adequate flow velocities. We get 2-3 inches of water under our floorboards at the front of our house after heavy rain. I have been advised that running an aco. Hello, all paving or ground level must be 2 brick course below dpc. My current general thinking and after consulting with Kingspan as well, is described below and in the diagram attached: - Liquid tanking membrane below the DPC but connecting to it. Can DPC be above floor level? An accessible or level threshold consists of three principal elements: 1. Do I:-. The render above is darker - damp possibly?laying the floor tiles . There are 4 ways to connect new drainage to an existing system:-. The ACO products all seem to be a uniform depth so if I used them I'd still have a hole to step into. - Kingspan styrozone H350R below the DPC fixed to the wall all the way to the foundations. If the ground is solid, perhaps tarmac or concrete, they can be placed lower, provided the ground slopes away from the wall. i basicaly reduced the ground level 150mm below the dpc level of the house and installed a french drain running along the rear of the house. Where the dpc doesn't jump out and announce its presence, there are a few key indicators that can help in identifying the position. Aqualevel is a fully integrated level access channel drain that works with a range of glazed door systems including sliding, bi fold, and lift & slide. When rising wall is 215mm wide, change in level should be between 150mm and 860mm. The mortar bed upon which the DPC is to be laid should be made level, even and free from projections. Our costs are ballpark averages – get a local tradesperson to quote now. Add to basket. Option one, we could cut back the tarmac and install a kerb edging creating a channel 150mm below DPC with the base laid to fall away from the brickwork. Load Class A–B. So we are having this outside the bifolds. Please note this house was built in 1810 and has no DPC. When specialised foundations are used, including those for timber framed buildings, this depth may be reduced to 150mm below the DPC where weep holes are provided and other necessary measures are taken to ensure that the cavity can drain freely. However, I’d like to have the level at the porch to be close to the level of the DPC and avoiding having a step means part of the drainage channel being less than 75 below the DPC. (Level 4 A/OPC). 4. Table 1 - Bed and haunch requirements. AS1050 Discrete Channel. Between the drain and wall would be a small space. Load Class A-C. The insulation block below DPC is good also. The surveyor suggests the following: Form a trench at the wall/path junction to a depth of 150mm below the physical damp proof course or internal floor level and fitting Aco drainage or similar, discharging into suitable drainage or back filling with pea gravel to allow drainage of. Founded in 1946, the ACO Group manufactures products for the building and construction industry. On some properties, identifying the dpc is quite straightforward: it protrudes slightly from the bed joint and could be spotted by the proverbial blind man on a. 8. Oldham. Multiskillmaster, Dec 3, 2019 #3. The tray should be positioned immediately above the. It will stop the water collecting around the house above the DPC. ACO stands for professional drainage, efficient cleaning, and the controlled discharge or reuse of water. A DPC should be provided a minimum 150mm above adjoining surfaces and linked with the DPM in solid floors. Content. - On many established properties, the dpc will usually be somewhere between 100mm and 450mm above the paving or ground level. Drainage requirements. Mark your line. * Linear drain between patio and house. Traditionally, paving is laid at a level that is at least 150mm below DPC level, which is usually equivalent to internal floor level. Best solution would be to put in a aco drain between the patio and internal floor and connect the drain to nearest down pipe outlet. The holes should also be drilled 110mm apart, and to a depth of 10. N. + Gravel prevents splash back. Our patio is 50mm below dpc and causing an issue with ingress of water which has ruined our oak floor in the living room. freetown. Only thread which run in kernel mode can raise IRQL above DPC level and preempt the execution of vital system code. The porcelain patio will meet the same height as the gravel strip with no extra drainage put in here. West Office Toll Free: 888-490-9552 825 W. Performance Monitor shows time spent at IRQL 2 as "% DPC time" and time at IRQL > 2 as "% interrupt time", regardless of whether the time was actually spent in a DPC routine or ISR or was a the result of raising IRQL from a lower value. KG landscaping. I’d leave it unless the patio constantly flooded or something and it’s just not nice to live with. When do you need to install cavity trays at dpc . Title XIV - PROPERTY (Ch. See us at. 1 Feb 2017. That means the. ₹ 3,500/ Meter. ACO Threshold Drain Drainage Channel with Stainless Steel Grating - 1m. Iv seen a lot of cowboy builders installing aco drains on drives and. West Office Toll Free: 888-490-9552 825 W. A line should be fixed along the length of the trench in order to determine the finished height and alignment of your drainage channel. Location. And finally, for what it's worth, the back garden level is higher than the dpc by about 50 mm. Retaining wall 150mm away with an acco finishing 150mm below dpc at the the bottom - then you have a "normal" build - otherwise take your chances with polythene sheets, internal tanking etc - and don't skimp on the detail. Fill the trench with pea gravel. The aco drain is set on top of concrete and once removed I think should come to roughly 200mm below doc which I will back fill a little with gravel/shingle. KS100 has a grade 304 stainless steel edge rail for use where increased aesthetics or corrosion resistance is required. ingress at end of drain run. Due to potential on-going variations in surface level with gravel and cultivated ground, including the risk of obstruction by. 2 T9070-AF-DPC-010/079-1, Design Practices and Criteria for U. So here lies my concern - will the aco drain cause a bridge for. construction details. All horizontal drainage pipes, both above and below ground, should be laid to an adequate gradient. 888-490-9552 POLMER CONCRETE TRENCH DRAIN SYSTEMS 1 ACO Drain consists of a full range of modular channels with captive grates. 9. #2. D. Agreed, thumbed in pointing with a lot of cement content Looks lovely . of the correct width and fully bedded. The old paving was at the same level as the DPC, that's why I think the previous owners installed the heavy duty steel trenches. Modern properties tend to have two separate drainage systems installed. 20 May 2022. A patio that drains rainwater towards the building may affect the foundations and could cause serious structural damage. D. ACO Threshold Drain comes complete with either a silver or black aluminium, CorTen steel or stainless steel Heelguard grating suitable for pedestrian traffic. £42. ACO in New Zealand was established in 2012 and utilizes the 24 ACO manufacturing facilities globally, including the Australian facility located in Sydney, New South Wales. 603-2 Selection. What can happen is that water gets in and causes joists (those that exist beneath a dpc) to rot. 50 incl VAT. If I was to dig these levels down another 150mm to get the 3 courses below DPC then I'm going to have a major step into the house, add to. #4. 5. Green New Member. The drain should be 150mm below dpc and ideally connected. Up to DPC level. Manthorpe Underfloor Vent Extension Sleeve. Our patio is 50mm below dpc and causing an issue with ingress of water which has ruined our oak floor in the living room. End caps and inline grated pits complete the system. Yes they should have installed the driveway 150mm below the damp course, if this was unfeasible then an aco drain should have been installed right around the house (where the dpc is compromised) and should of been connected to an existing gully for drainage. This is level with the DPC and above air bricks. D. B. b) fit the Aco flush to the door which would need me to cut off the sill. These issues are not explicitily mentioned in our installation manuals, because in. - via a saddle onto an existing sewer. Issues to be taken into account include: a) general construction considerations. Features & Benefits: ACO Hexdrain Plastic Channel Drain A15 with Microgrip - 1m. seneca196 Member. Yes they should have installed the driveway 150mm below the damp course, if this was unfeasible then an aco drain should have been installed right around the house (where the dpc is compromised) and should of been connected to an existing gully for drainage. 555 - 594A) Chapters. ACO Multiline. Please note this house was built in 1810 and has no DPC. Let the hole fill up with the cream, slowly pulling the nozzle out from the hole. Depending on the type of gully, they can be used to connect wastewater outlets or stormwater/rainwater outlets to suitable drains. Damp (structural) Detail showing some of the causes of damp penetration. 8. Can I build an Aco drain at the DPC level or must there be a drop between DPC and the Aco drain? 2,682. The HexDrain channel should be laid onto a concrete bed (minimum strength C12/15) with minimum dimensions of 175mm wide x 50mm deep. § 1724(a)(2) concerning experienceThe following are different types of DPC and their thickness used in construction, 1. The door sill’s are also under the decking so my problems are:-. ACO DRAIN® ParkDeck channels. When designing Type C (drained) protection, as classified in BS 8102: 2009, the product applied correctly, is capable of providing the levels of protection required for Grade 1, 2 & 3 basements. Unlikely. Excavate to reduced depth of 100mm below finished level (250mm below dpc) and cart all spoil to licensed, off-site tip. Ideally a patio should be at least one brick below dpc but if aco drains are installed this is plenty adequate and will definitely stop the problems your facing. The finished level is at or above DPC do I plan to fit Aco drains to take away any water near the house. Country. The patio slops towards the back of the house and he installed a drainage channel that goes along the back wall to an existing drain (laid in July 2019). a Unless otherwise stated, Rates in Bill of Quantities shall. Slip rated to AS 4586: P4 wet pendulum, C/C 1 wet-barefoot, R11/R11 1 oil-wet inclining platform test. 125m = approx 125mm higher than the gully at K. The ACO PIPE ® push-fit pipe system made from stainless steel (both AISI 304 and 316) provides a modern alternative to plastic and zinc-coated pipes for water drainage and vacuum systems. Aco drain around patio leak the water to the ground. A clear cavity of at least 225mm below the DPC should be maintained. The old paving was at the same level as the DPC, that's why I think the previous owners installed the heavy duty steel trenches. aco | architecture across continents". Title XVI - CRIMINAL LAW AND PROCEDURE (Ch. Ensure water falls away from the doorway in a single direction and make sure there are no cross falls. Hack of any cement render (ideally from the whole house, but certainly off the lower 1-2ft). hepReviews. I have some questions around insulating below the DPC though. ACO stands for professional drainage, efficient cleaning, and the controlled discharge or reuse of water. The “Y” dimension shown below indicates the full height of the channel (80mm). Slip-Resistant – ACO has tested grate patterns for slip resistance using the widely accepted pendulum test. Water is the biggest enemy of this structure. Available in 50, 85, 100, 200 and 300mm widths. Hello, I am in the process of paving around a drain installed by a previous owner that seems to be the wrong kind and wrong height. Sa dugogodišnjim iskustvom i prisutnošću na najrazličitijim projektima, uvođenjem kanala za odvodnjavanje nove generacije, postigli smo napredak u svim. Firstly we noticed the aco drain was not sealed at the joins so there was a gap which could have possibly been seeping water through the other side between aco drain and house. ACO Building Drainage Stainless steel corrosion resistant drainage systems for applications across the internal and external built environments. #1. AS101 DPC Channel. It can be installed without the need of taking up a large amount of pavers from your. As stated in the brief given on the Setting Out Lines & Arcs page, we also know that the. Intermediate Tray Left Hand Tray 2 Tray 3 Tray 1 A T ray ng Intra Weep Catchment Tray T h e fi r s tay ob u l- n. If you was installing storm drains I would recomend that you install them lower than you dpc level and tap in to the nearest underground waste pipe so the water has somewhere to go. Pipe a DPC cream into the holes with a caulk gun. Would it be OK to place a metal or plastic grille to cover the channel at ground level. The Aco Drive Drain system is a surface drain. Then go for the perfect finish. ACO Water Management The management of surface water with complete integrated systems for use across the spectrum of civils projects. Thickness of plastic rail = 5mm. Many people take pride in their lawn and garden,. I could have a small gap, say 10-15mm, between the ACO channel and the wall, either with a bottom of earth or a mini drainage channel. Most are variations on the theme of an enclosed channel, typically with a u-shaped cross-section and some form of grating over the top. 1m / 0. However I am unsure on the longevity of this and whether a. This page looks. So here lies my concern - will the aco drain cause a bridge for damp to get across. I have been advised that running an aco drainage channel along the wall of the house would be sufficient. distortion across doors should be limited to a maximum of 5mm in height, and 3mm in width. The first thing to do is excavate a trench area at the installation site that matches the depth and width of your ACO drain and accommodates the channel and the bed. S. Qty. So we are having this outside the bifolds. DPC may be bitumen, mastic asphalt, bituminous felts, plastic sheet, metal sheets, cement concrete DPC may. 1 told us we need to lower the patio while the other has suggested raising the patio to dpc line and putting in an aco drain against the house!N. The builder is proposing to lower the soil level here, but there is a fence post hard up to the corner of the house – is this an issue? There is an slim ACO drain across the patio door but not the wall, would extending the ACO drain be a better solution? Grateful for thoughts. The slate DPC feels loose in some areas and parts of it flaked off (not loads). My plan was to lay a small path around the house and install ACO drainage channels next to the property but I've run into a bit of a problem. Often abbreviated to RWP on drainage drawings, is simply a drainage fitting that takes surface water from a roof downspout or collects surface water. Service - Innovation 11. MultiDrain M100D channels can be installed with three different invert types, Constant Depth, Sloping Invert or Stepped Invert. . ACO Građevinski elementi d. #2. Retaining wall 150mm away with an acco finishing 150mm below dpc at the the bottom - then you have a "normal" build - otherwise take your chances with polythene sheets, internal tanking etc - and don't skimp on the detail. But older DPC’s may be lower than this and many will be a lot higher, particular with houses built on sloping ground. The period of. 54 ex. System inlcudes frame conenctors, grate lockdowns, and construciton covers. Kerbed edging and then a drop to the aco drain below DPC or a second grate level with driveway and above the DPC that sits on top of Aco. - It's invasive, there's the gas supply and a cable running parallel to wall. Set Bottle Gulley in desired position to join up with Aco drain, suitable bends and required pipework can be used to join the outlet up with. Permeable driveways are often more attractive than an expanse of concrete, adding value to the property. We understand the importance of better utilizing one of our planet's vital resource, water, and are working tirelessly to improve its utilization, collection and reuse. Like 1. Beechcraft St. ACO Systems FZE. ACO Drain is available in 2″, 4”, 8” and 12” internal widths, and are available with up to 130 ft (40m) of built-in continuous slope. The products fall into five main drainage gully types: Fixed Height and Telescopic gully. ACO Sport. Install an external landing with a fall ratio of between 1:40 and 1:60. Reply; In reply to Cavity trays at dpc level by James. The bottom of the pipe will be level with the top of the water in it so shouldn't be too deep of a dig. Klasa opterećenja od A15 do D400. Benefits and Drawbacks of a French Drain. 21 Sep 2011. The surveyor suggests the following: Form a trench at the wall/path junction to a depth of 150mm below the physical damp proof course or internal floor level and fitting Aco drainage or similar, discharging into suitable drainage or back filling with pea gravel to allow drainage of. The Aco is the belt and braces but they're really designed for large volumes of water. 8. Some folk fill the gap with pebbles/stones but I leave it empty. My problem is the top of the channel is 1 brick below the DPC and the air-bricks are directly below the DPC and so the bottom hole of the air-bricks are at the same level of the top of the. Also, patios installed above the DPC need lowering. Relationship between civilian grade level and/or promotion and holding a warrant Program addresses organization’s philosophy on appointing contracting officers and establishing dollar thresholds Program meets the requirements of FAR 1. Alumina bifolding doors. ACO as a leader in development and manufacturing of stainless steel drainage, in cooperation with building companies, has developed a comprehensive installation guideline document, which helps installers with installation related issues. Building regulations made DPC compulsory for all properties built in London after 1875. Patio above DPC with Aco Slot Drain? We would like a patio built flush to our low threshold bi fold doors so the floors indoor and out flow. Suitable for use with Hepworth Clay Supersleve drainage systems but can be converted for 110mm. We can live with 1 brick below dpc and the floors are set at dpc level. ACO offers a range of products for drainage and other services both outside and within the building envelope. also allow water from adjacent ground to enter the building. co. I know the rule is 150mm but technically it is the top of the linear drain that is 75mm below the dpc and the ground height next to the house is well below the 150mm. DIY Software. Country. For easy disabled access. K100 has a galvanized steel edge rail for general use. Direct gutter downspouts away from the wall footings. So there is a slight step, probably about 20mm. Department of the Air Force, and Defense agencies and activities awarded a Tailored Task Order #47QRAC18F0003 to U. As long as the soil level immediately adjacent to your house is ~150mm below the DPC, there is no problem. Foreword. With your foundations set, you can now install your ACO drain. Channel weights are for fiberglass body only. Firstly, its below dpc level so its unlikely to cause a problem; that just tells you the damp proof course is doing its job. Add to basket. Reaction score. We moved into our house in October. Slot size: 6mm x 50mm. Southeast Office447 in stock. Contact us at: 1300 765 226 (Australia) +61 2 4747 4000 (Export) [email protected] ACO products all seem to be a uniform depth so if I used them I'd still have a hole to step into. Technical Hotline 01753 944200. c) construction details. Tunnels and fence systems for small animals crossing roads. Air bricks may be located either above or below DPC level and where possible on all sides of the building. Founded in 1946, the ACO Group manufactures products for the building and construction industry. Also I'd gamble on the DPC spanning the cavity and causing pooling. Our gullies are manufactured in austenitic stainless steel grades 304 or 316 and are fully pickle passivated in order to ensure corrosion free joints. 804-3 also states that Components may apply additional conditions not listed in Figure 5 above, as necessary to ensure all contract requirements have been completed prior toOur RainDrain B 125 installation tutorial shows you how easy and quick it is to prepare and install ACO RainDrain B 125 drainage channels and accessories. Outside floor level too high so Im installing ACO channels, 2 vents had been cemented over so cleaned them out. I am thinking it would be better to slope it down slightly into an ACO drain up against the house. User mode threads usually run at IRQL = passive level and cannot block ISR DPC routine. You can use permeable surfaces that allow water to drain into them or by other methods such as rain gardens (see below). When we had the patio laid the builder put a French drain along the side of the house. 350mm overlap. This video will guide you through the typical process for installing ACO HexDrain channel drainage systems, which are perfectly suited for use in domestic ap. the scoring idea is so you get a good visible line to then do rest of the cut. The french drain idea would be a "poor man's" soakaway but probably still sufficient given the size of your patio. Thanks for your reply multiskillmaster. A line should be fixed along the length of the trench in order to determine the finished height and alignment of your drainage channel. Also for extra protection coat the bricks below the top of the patio with black bitumen to stop any damp soaking through. 22 May 2018. 3. My conclusions so far. Answered 19th Jul 2021. AS1010 Brickslot Drainage Channel. The purpose of the drainage channel is not only to act as a drain, but. 13 Sep 2013. The top of the deck needs to be at or below dpc level. Patio level with dpc. I will re-route the. the current patio is only a course to 1. Welcome to ACO! We specialise in designing and manufacturing high-grade concrete trench drain systems, engineered to tackle water management challenges in any environment. The old paving was at the same level as the DPC, that's why I think the previous owners installed the heavy duty steel trenches. b) drainage. The external landing should be sufficiently large and level for ambulant disabled people and wheelchair users to be able to approach and, if necessary, turn to face the door. They are shaped like a U and and can be simply clipped together. Title XV - JUDICIAL BRANCH AND JUDICIAL PROCEDURES (Ch. I feel two individual steps close to each other would look clumsy, and likely present a trip hazard. Utilising innovative technology and superior materials, we offer durable and reliable drains for concrete and other pavement types that stand the test of time. 2. Basic characteristic. The builder is proposing to lower the soil level here, but there is a fence post hard up to the corner of the house – is this an issue? There is an slim ACO drain across the patio door but not the wall, would extending the ACO drain be a better solution? Grateful for thoughts. Dig a shallow trench to reduce the outside ground level. M ELECTRICAL INSTALLATIONS. I have been advised that running an aco drainage channel along the wall of the house would be sufficient. 8. com. I have spoken to my builder and he has said we can either make a channel by breaking out the concrete and digging down and then laying pee gravel in the channel 150mm minimum below the DPC, or raise the DPC up by a course of bricks in the effected area and then step it back down again to join the original DPC in the un effected area. was founded in 1978 in Ohio. Is this OK and if not is there anything I can do to. I think you will have to either bodge it like the guy says or get the shovel out, you really want a 4" trap under the outlet to catch any silts then connect into the drain further down. ACO Drain ® systems consist of factory manufactured modular channel units made from corrosion resistant Polycrete ® channels, together with grates from a variety of materials for all loading applications. ACO Drain’s commitment to excellent service, product variety, and. Dead Level P Trench Drain; Dead Level D Trench Drain; BarryCraft Grates More; Light Duty 5300 Series; Standard Trench Drain Grates 1" to 12" Wide; Large Trench Drain Grates 13" to 51" Wide; More Replacement Grates;. AS1010 Brickslot Drainage Channel. The. As mentioned putting stepped dpc in could u put that in then another dpc same height as the Blockwork dpc so in effect 2 external dpc many thanksDPC’s objective is to improve the cleaning service quality in public areas by progressively incorporating higher performance standards and service delivery for public places. Cavity trays at dpc level. Click here for a calculator that estimates the quantities of each ingredient required to mix a C20-equivalent concrete. £15. Installing a French drain can create better drainage in your yard by keeping water away from your house and foundation. So, for example, changing levels to introduce steps where none existed before would be a contravention. If there’s one thing that drives the design of ACO’s market. The concrete. The ACO drain can then be lowered into the trench and sealed to the drainpipe before packing it to the correct level. Building Regulations. Our stormwater pits and storm drain grates ensure efficient drainage and. Manthorpe G965 Dual Extended Telescopic Floor Vent. To facilitate timely notification to the PCO, the ACO must input an Estimated Completion Date (ECD) and an overage reason code in the R2 line of MOCAS. About ACO. Add to basket. Although this would be above DPC level plastic or metal wouldn't absorb or transmit moisture. N. Introducing HYDROlite: an additional free service to assist engineers and designers with the correct sizing of trench drains, based on channel and grate hydraulics. 26 DPC; 6. Find us on. A builder has been carrying out extension work on an individual's property. Add to basket.