07834 989360 Mon–Fri, 8am–5pm - AboutServicesAreasOur WorkReviewsContact07834 989360Request an Estimate Home/ - ServicesOur services # Everything your project needs,delivered bya single team From the first drawings, coordinated with our recommended architects, to the final coat of paint. Choose a service below, or tell us what you are planning and we will advise on the right route. Request an estimate07834 989360 30 yearsof construction experience across the team CABE membersprincipals are members of the Chartered Association of Building Engineers 5.0 starsrated 5.0 from 14 Google reviews One point of contactdesign coordination, planning, procurement, build and supervision under one contract Full service list ## Design-and-build services Most clients come to us for an extension, loft conversion or refurbishment. The trades below are delivered as part of those contracts, or on their own where the scope suits. ## Home Extensions Single-storey, double-storey and wraparound extensions, design coordinated and built by one team. View home extensions service ## Loft Conversions Turn unused roof space into a bedroom, en-suite or office, structurally sound and building-control signed off. View loft conversions service ## New Build Homes Individual new build homes delivered from design package through to completion. View new build homes service ## Full Refurbishments & Renovations Whole-house refurbishment, kitchens, bathrooms and period property renovation, managed end to end. View refurbishments & renovations service ## Internal Alterations Knock-throughs, new openings, reconfigured layouts and structural steels installed safely. View internal alterations service ## Outbuildings & Garden Rooms Insulated garden rooms, home offices, gyms and garages built to last all year. View outbuildings service ## Architectural Drawings & Design Coordination Survey, concept, planning and construction drawings coordinated with our recommended architects, ready to build from. View drawings & design service ## Structural Works Steels, foundations, load-bearing alterations and structural repairs. View structural works service ## Carpentry & Joinery First and second fix carpentry, roof structures, staircases and fitted joinery. View carpentry service ## Brickwork Extensions, garden walls, repointing and matched brickwork on period properties. View brickwork service ## Roofing Pitched and flat roofing, dormers, leadwork and roof coverings on new and existing homes. View roofing service ## Electrical, Plumbing & Gas Coordinated through vetted, accredited subcontractors: NICEIC/NAPIT registered electricians and Gas Safe engineers. View electrical & plumbing service How it works ## Five stages on every project The same process applies whether we are forming one structural opening or building a house. - 01 ### Design We take your brief, survey the property and coordinate the drawings and design package with our recommended architects and engineers, so you have no separate consultants to find or brief. - 02 ### Planning & preparation Applications, building control and the programme of works are prepared and coordinated before anyone lifts a tool. - 03 ### Procurement Materials and vetted trades are secured against a fixed scope, so the build starts with everything in place. - 04 ### Construction Your build is delivered by skilled tradesmen working to the agreed drawings, programme and standard. - 05 ### Project supervision A named point of contact supervises the site, handles building control and keeps you updated to completion. ## Not sure which service you need? Describe the project and we'll tell you the most sensible route through it. Request an estimate07834 989360 Extension, loft conversion and refurbishment specialists based in Sidcup, working across London, Kent and the surrounding areas. 5.0 from 14 Google reviews Facebook - Instagram ## Services Home extensions - Loft conversions - New build homes - Refurbishments & renovations - Internal alterations - Outbuildings - Drawings & design - Structural works ## Areas we cover - Bexley - Kent - South East London - Welling - Sidcup - Bexleyheath - Dartford - Crayford - Blackfen ## Get in touch - 07834 989360 - info@ashcroftconstructiongroupltd.co.uk - Onega House, 112 Main Road, Sidcup, Kent, DA14 6NEMonday8am – 5pm Tuesday8am – 5pm Wednesday8am – 5pm Thursday8am – 5pm Friday8am – 5pm SaturdayClosed SundayClosed © 2026 Ashcroft Construction Group Ltd. All rights reserved. ReviewsCookie policyPrivacy policyTerms & conditionsPrincipals are members of the Chartered Association of Building Engineers (CABE). Call nowGet estimate We use essential cookies to run this site, plus cookies from our enquiry form, chat and review widgets. Cookie policy RejectAccept