07460 036540 info@humphriesconstruction.co.uk Tue–Mon · 7am–7pm HomeServices Areas Our WorkReviewsAboutContact 07460 036540Request Free Quote King's Lynn · West Norfolk · Established 2015 # Groundworks & General BuildingContractor in King's LynnBuilt by Humphries Construction Owner-led: 25+ years on the tools, from Site Foreman to full ground-up new builds. Fixed-price quotes, personally project-managed, and a trusted team of fully insured tradespeople. Request Your Free Quote Call 07460 036540 - 25+ Years on the tools - £1M Public liability - 7 days To free site survey - 10 yr Structural warranty* *10-year structural build warranty included with every extension. ## Get a Free Quote GROUNDWORKSEXTENSIONSGARAGE CONVERSIONSDRIVEWAYSFOUNDATIONS & FOOTINGSDRAINAGEMUCK-AWAYCONCRETE SLABSBRICKLAYINGGROUNDWORKSEXTENSIONSGARAGE CONVERSIONSDRIVEWAYSFOUNDATIONS & FOOTINGSDRAINAGEMUCK-AWAYCONCRETE SLABSBRICKLAYING 25+ Years experience £1M Public liability 10yr Structural warranty 7 days To free survey What we do ## Groundworks-led.Built to last. From a single driveway to a ground-up extension. If it starts in the ground, we get it right at the base. ### Our main services Our specialism Main service ### Home Extensions Ground-up single and double-storey extensions: structural steels, planning and building control managed start to finish. See details Our specialism Main service ### Garage Conversions Complete conversions from strip-out to habitable room, owner-led from first survey to final handover. See details ### Other services Foundations & drainage ### Groundworks Foundations, drainage, muck-away and site prep, done right the first time so every trade after us inherits square, level and dry. See details For developers ### New Build Groundworks Groundworks packages for self-builders and developers, priced honestly on day rate or fixed contract. See details Block, resin, gravel ### Driveways Block paving, resin, gravel and tarmac, built on properly compacted sub-base so they last decades, not seasons. See details Base of everything ### Foundations & Footings Engineered strip, trench-fill and raft foundations to approved details, signed off with building control. See details Skilled trade ### Bricklaying Facing brick, blockwork and feature detailing, sourced and matched to sit right with the existing property. See details Everything else ### General Building Renovations, structural alterations, roofing and one-off jobs handled by the same team, to the same standard. See details All services Why Humphries ## Owner-managed.Hands-on graft. Our owner has spent 25+ years in construction, from Site Foreman to running his own ground-up new builds. Every job gets the same level of care, whether it's a driveway or a full extension. A ### Owner on every job You're not passed to a project manager. The owner personally prices, plans and runs your build from first survey to final handover. B ### A trusted, insured team Long-standing subcontractors, every trade fully trained and carrying their own insurance. No revolving door of strangers on your site. C ### Fixed prices, hard timings Free survey in 7 days, written fixed-price quote in 3 days. On extensions and garage conversions, the price you agree is the price you pay. About usGet your free quote At a glance StructureOwner-led Experience25+ years BaseEast Winch, Norfolk Public liability£1,000,000 Site surveyWithin 7 days Written quoteWithin 3 days* Start on site4–8 weeks PaymentBank transfer only *Up to 7 working days for complex projects. 10-YR Structural warranty on extensions 2-YR Workmanship on garage conversions How it works ## Three steps.Zero runaround. Skip to a call - 01 ### Free site survey We visit within 7 days, walk the job with you and understand exactly what you want built. - 02 ### Fixed written quote You get a clear, itemised quote, usually within 3 days. No pressure, no obligation. - 03 ### On site & handover Contract signed, works start within 4–8 weeks. Stage payments for extensions, balance on completion for conversions. Areas covered ## Based nearKing's Lynn.CoveringWest Norfolk& beyond. Domestic and developer projects across a 25+ mile radius of King's Lynn. Not sure if we cover your postcode? Give us a call, we'll tell you straight. - King's Lynn - Norwich - West Norfolk - Downham Market - Swaffham - Fakenham - Hunstanton - Wisbech - Dereham 07460 036540Check my postcode Client feedback ## Rated bythe people we'vebuilt for. Leave a Google review "Such a professional, can't rate this company enough. Kept to time frames, site was always left tidy, went up much quicker than we anticipated, worked with me on bits I wanted changed, respectful that there were animals here. It's a ten out of ten from me. Would absolutely recommend this company." , Jennifer Reader Marsh · Google FAQ ## Straightanswers. Can't see your question? Call us on 07460 036540 or send a message, we'll come back the same day. 01Are your quotes really fixed price?Yes, for extensions, garage conversions and driveways your written quote is a fixed price. Developer groundworks (labour only) are priced on a day rate because materials are ordered by the developer. 02Do you handle building control and planning?Yes. Building control is handled by Humphries Construction on new projects, or we can take over communication if you've already appointed. Planning applications are managed start-to-finish when you use our in-house architect. 03How much deposit is required and how do I pay?Extensions take a deposit on signing and then stage payments through the job. Garage conversions take a deposit on signing with the balance on completion. Payment is bank transfer only, no cards or cash. 04How quickly can you start?A free site survey is usually within 7 days, a written quote within 3 days (up to 7 working days for complex projects), and works typically start 4–8 weeks after contract signing. 05Do you use employed staff or subcontractors?Every job is owner-led and brings in a long-standing team of trusted subcontractors on a per-project basis. Every trade is fully trained and carries their own insurance. 06Do you cover my area?We're based near King's Lynn and regularly cover King's Lynn, West Norfolk, Norwich, Downham Market, Swaffham, Fakenham, Hunstanton, Wisbech and Dereham. Give us a call to check your postcode. Free · No obligation ## Tell usaboutyour project. A few details and we'll come out for a site survey within 7 days. Or ring straight through. The owner picks up. 07460 036540Tue–Mon · 7am–7pm ### Get a Free Quote Groundworks and general building contractor serving King's Lynn, West Norfolk and beyond. Owner-managed by Jason Humphries with 25+ years on the tools. £1M Public Liability Insured Services - Groundworks - Extensions - Garage Conversions - New Build Groundworks - Driveways Areas Covered - King's Lynn - West Norfolk - Norwich · Downham Market - Swaffham · Fakenham - Hunstanton · Wisbech · Dereham Contact - 07460 036540 - info@humphriesconstruction.co.uk - Station Cottage, Gayton Road,East Winch, Norfolk - Mon–Fri 7am–7pmSat 8am–5pm · Sun 10am–4pm © 2026 Humphries Construction. All rights reserved. Get a free quote·Leave a Google review·Privacy·Cookies·Terms Call Jason Free Quote We use essential cookies only to make this site work. See our cookie policy. OK