07834 989360 Mon–Fri, 8am–5pm - AboutServicesAreasOur WorkReviewsContact07834 989360Request an Estimate Home/ - ContactContact # Tell us aboutyour project andwe'll take it from there Call during working hours to speak to the team, or send your details and we'll come back to you with the next step. 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 Request an estimate ## Send us the details ## Speak to us directly 07834 989360info@ashcroftconstructiongroupltd.co.ukOnega House, 112 Main Road, Sidcup, Kent, DA14 6NE - See our latest projectsMonday8am – 5pm Tuesday8am – 5pm Wednesday8am – 5pm Thursday8am – 5pm Friday8am – 5pm SaturdayClosed SundayClosed Service area ## Where we work We work from Onega House, 112 Main Road, Sidcup, Kent, DA14 6NE across Sidcup, Bexley, Kent and South East London. BexleyKentSouth East LondonWellingSidcupBexleyheathDartfordCrayfordBlackfen Not sure whether your postcode is covered? Call 07834 989360 or send the form above and we will tell you straight away. You can also read our client reviews or look through our work. Before you send ## Quick answers How quickly will you get back to me?+Enquiries are answered during working hours, Monday to Friday, 8am to 5pm. If your project is urgent, calling is the fastest route to a person. What should I include in my enquiry?+The property postcode, roughly what you are planning, your timescale, and whether you already have drawings. That is enough for us to advise on the next step. Do you charge for the initial conversation?+No. We will discuss the project and set out the sensible route through design, planning and build before anything is committed. ## Prefer to talk it through? Call 07834 989360 during working hours, Mon–Fri, 8am–5pm, you will speak to someone on the team. 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 FacebookInstagram ## 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