HomeAboutServices Areas We Cover Our WorkReviewsSpecialsContact07784 144802Free Estimate - Home - /Services - /Extensions - /East Grinstead East Grinstead, RH19 # Extensions in East Grinstead An extension is usually the cheaper answer to needing more space than moving house is. The value is in getting the foundations, structure and flow right so the new space feels like it was always part of the home. 14+ years experience5.0 ratedFree site surveyOn site in around 25 minutes Free site survey & estimate07784 144802 ## Extensions estimate in East Grinstead We reply to every enquiry within 24 hours, Monday to Sunday Or call 07784 144802Free site survey and written estimate. No obligation, no pushy follow-ups. ## Typical East Grinstead project cost Single storey extensions generally start around £30,000 and rise with size, glazing, structural openings and specification. ## How long it takes A single storey extension typically takes 10 to 16 weeks depending on scope. ## What extensions work in East Grinstead actually involves East Grinstead plots are often sloped with mixed made-ground from earlier building work. Excavation frequently turns up more than expected, so we survey properly before committing to a spec. The town has a high concentration of period and character properties, which means material matching — brick colour, bond, stone type — carries real weight in whether the finished job looks right. We handle groundworks, drainage diversions, footings, structure and external envelope, coordinate building control inspections at each stage, and match brick, bond and mortar to the original so the join does not read as an afterthought. We work across East Grinstead and the surrounding villages — Ashurst Wood, Felbridge, Forest Row, Sharpthorne, Dormansland — and reach most addresses in around 25 minutes. Where consent or building control is involved we deal with Mid Sussex District Council and tell you up front what is required. You can see the full extensions service detail or everything we cover in East Grinstead. ### Materials and options we install - Single and double storey rear and side extensions - Foundations, footings and structural openings - Brick and block work matched to the existing elevation - Roofing, rainwater goods and external finishes Why it lasts ## How we build extensions to last in East Grinstead ### Space without moving Add the kitchen, family room or bedroom you need for a fraction of the cost of relocating. ### Built to the drawings Foundations, structure and building control stages handled properly rather than improvised on site. ### Matched to the house Brick, bond, mortar colour and roofline chosen so the extension reads as original. ### One point of contact Groundworks through to external finish managed by the same team, so nothing falls between trades. Customer feedback "Ground conditions on our site were awkward, but the prep work was handled properly from the start. That made the rest of the project run far more smoothly." Mark C. — Groundworks, East GrinsteadSee completed projectsRead all reviews FAQs ## Extensions in East Grinstead — common questions ### svg]:rotate-180 py-3 text-left text-sm font-semibold text-card-foreground hover:no-underline md:py-4 md:text-base" data-radix-collection-item="">How much does extensions cost in East Grinstead? ### svg]:rotate-180 py-3 text-left text-sm font-semibold text-card-foreground hover:no-underline md:py-4 md:text-base" data-radix-collection-item="">How long does the work take? ### svg]:rotate-180 py-3 text-left text-sm font-semibold text-card-foreground hover:no-underline md:py-4 md:text-base" data-radix-collection-item="">Do you cover the whole of East Grinstead? ### svg]:rotate-180 py-3 text-left text-sm font-semibold text-card-foreground hover:no-underline md:py-4 md:text-base" data-radix-collection-item="">What is the ground like in East Grinstead? ### svg]:rotate-180 py-3 text-left text-sm font-semibold text-card-foreground hover:no-underline md:py-4 md:text-base" data-radix-collection-item="">Do I need planning permission? ### svg]:rotate-180 py-3 text-left text-sm font-semibold text-card-foreground hover:no-underline md:py-4 md:text-base" data-radix-collection-item="">Are you insured and can I see previous work? ## Ready for a new extensions project in East Grinstead? Book a free site survey and get a written estimate for your East Grinstead property. 14+ years of experience, 5.0 rated, no obligation. Request a Free Estimate07784 144802 ### Other work we do in East Grinstead Driveways East GrinsteadPatios & Paving East GrinsteadLandscaping East Grinstead ### Extensions in nearby towns Extensions CrawleyExtensions HorshamExtensions Reigate Quality builds that stand the test of time. Serving West Sussex and surrounding areas for over 14 years. - ServicesLandscaping - Driveways - Patios & Paving - Extensions - Bricklaying - Fencing - Carpentry - Groundworks - Garden Renovations Areas We Cover - Crawley - Horsham - Redhill - Brighton - East Grinstead - Burgess Hill - Haywards Heath - Horley - Reigate Contact - 07784 144802 - burtonbuilds@hotmail.com - Furnace Green, CrawleyHours Monday – Sunday: 08:00 – 18:00 ### Popular Local Pages Driveways in CrawleyDriveways in HorshamDriveways in ReigateDriveways in East GrinsteadPatios & Paving in CrawleyPatios & Paving in HorshamPatios & Paving in ReigatePatios & Paving in East GrinsteadLandscaping in CrawleyLandscaping in HorshamLandscaping in ReigateLandscaping in East GrinsteadExtensions in CrawleyExtensions in HorshamExtensions in ReigateExtensions in East Grinstead AboutServicesAreasOur WorkContactPrivacy PolicyTerms & ConditionsCookie Policy © 2026 Burton Builds. All rights reserved. Call NowFree Estimate We use essential cookies to run this site and, with your consent, analytics cookies to improve it. See our cookie policy. AcceptReject