--- title: "Builders in Upminster | Extensions, Garden Rooms & Refurbishments" description: "Upminster builders covering RM14. Extensions, luxury garden rooms, loft conversions and refurbishments. Fixed written quotes inside 48 hours. 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Extensions, luxury garden rooms, loft conversions and refurbishments. Fixed written quotes inside 48 hours. 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Easily scheduled alongside Romford, Hornchurch and Grays survey days." } }, { "@type": "Question", "name": "Can you take on larger Upminster extension projects?", "acceptedAnswer": { "@type": "Answer", "text": "Yes — full wrap-around, two-storey rear, side and rear combined schemes, larger garden-room annexes. The bigger plots support bigger briefs." } }, { "@type": "Question", "name": "Do you handle Havering Council planning and building control?", "acceptedAnswer": { "@type": "Answer", "text": "Yes — submissions, Article 4 and conservation-area checks, and building control inspections at every required stage." } }, { "@type": "Question", "name": "Can you build standalone garden rooms or annexes in Upminster?", "acceptedAnswer": { "@type": "Answer", "text": "Yes — bespoke timber-framed garden rooms with kitchenettes, shower rooms and proper insulation. Permitted-development and TPO checks done before quoting." } }, { "@type": "Question", "name": "How much does a two-storey extension cost in Upminster?", "acceptedAnswer": { "@type": "Answer", "text": "Cost depends on size, ground conditions and finish. Upminster briefs typically include higher-spec finishes which we price for transparently. Itemised fixed quotes after a site visit." } }, { "@type": "Question", "name": "Do you work in Upminster conservation areas?", "acceptedAnswer": { "@type": "Answer", "text": "Yes — to the materials and methods the conservation officer requires. Matched brick, lime mortars, sympathetic detailing." } }, { "@type": "Question", "name": "Can you build a new house on an Upminster plot?", "acceptedAnswer": { "@type": "Answer", "text": "Yes — ground-up new-build houses where the plot has consent. Foundations to final decoration, building control sign-off, warranty coordinated." } } ] }, { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "item": "/" }, { "@type": "ListItem", "position": 2, "name": "Service Areas", "item": "/service-areas" }, { "@type": "ListItem", "position": 3, "name": "Upminster", "item": "/service-areas/upminster" } ] } ] --- 57 Malvern Road, Grays RM17 5TH [1stclasscladding@gmail.com](mailto:1stclasscladding@gmail.com) Mon–Fri 9:00AM – 5:00PM · Sat 9:00 – 12:00 24-Hour Response · Essex [![1st Class Building & Cladding](/__l5e/assets-v1/da7878a8-c82a-4ac1-b267-5e8a371c31f2/1stclass-logo.png)](/) [Home](/) [About](/about) [Services](/services) [Service Areas](/service-areas) [Our Work](/our-work) [Contact](/contact) [01375 802765](tel:+441375802765) [Request Estimate](/contact) 1. [Home](/) 2. [Service Areas](/service-areas) 3. Upminster Essex Builders · Upminster · 35+ Years On The Tools # Builders In Upminster. Larger Plots, Higher-Spec Briefs. Upminster's property market sits well above the Havering average — larger detached and semi-detached stock, bigger plots, higher-spec briefs. Extensions, luxury garden rooms, loft conversions and refurbishments across RM14 by one accountable team. [Request Free Estimate](/contact) [01375 802765](tel:+441375802765) Upminster surveys booked this week · Fixed quotes inside 48 hours Covering Upminster Upminster jobs surveyed within 48 hours Fixed Written Quote Family-Run, Owner-Led Local Relevance · Upminster ## A Upminster Builder, Not A Builder Who Visits Upminster. ### Why We Work In Upminster Upminster is a regular working area for us — Grays to central Upminster is around 15–20 minutes via the A127 and B1421. Upminster sits at the upper end of the Havering market, with larger detached and semi-detached stock, generous plots and homeowners commissioning fuller-spec extensions and refurbishments. We take the work seriously and price to the brief. ### Upminster Property Types We Know Upminster's housing skews larger and older than the rest of Havering. The Hall Lane, Corbets Tey Road and Cranham Drive areas carry inter-war and post-war detached and large semi-detached stock on generous plots — ideal for two-storey rear extensions, full wrap-arounds and standalone garden rooms. The older central village core carries Victorian and Edwardian stock. Newer developments around the southern fringes run on modern cavity construction with larger floorplans. ### Common Briefs In Upminster The Upminster brief we price most often is a substantial two-storey or wrap-around rear extension — opening the kitchen, dining and family spaces into one connected ground floor with bedrooms and en-suites above. Luxury garden rooms are the second most common call: bespoke timber-framed studios with kitchenettes and shower rooms. Whole-house refurbishments on character properties and loft conversions on the larger semi-detached stock are regular work. ### Driving Time To Upminster Grays to central Upminster is around 15–20 minutes via the A127 and B1421. Easily fitted around Romford, Hornchurch and Grays survey days. Services In Upminster ## What We Build In Upminster. [All Services](/services) [ 01 ### House Extensions Single-storey, two-storey, side-return and wrap-around extensions across Essex. Read Service Brief ](/services/extensions)[ 02 ### Cladding External cladding by our in-house specialist team. Read Service Brief ](/services/cladding)[ 03 ### Luxury Garden Rooms Bespoke garden rooms, studios, home offices and gym annexes across Essex. Read Service Brief ](/services/luxury-garden-rooms)[ 04 ### Loft Conversions Dormer, hip-to-gable, mansard and L-shape loft conversions across Essex. Proper headroom, building-reg-compliant stairs, fire safety done right, finished to the same standard as the floors below. Fixed written quote, building control coordinated. Read Service Brief ](/services/loft-conversions)[ 05 ### Whole-House Refurbishments Whole-house and room-by-room refurbishments across Grays, Thurrock, Basildon and Essex. Strip back, rewire, replumb, replaster, refit and decorate. Read Service Brief ](/services/refurbishments)[ 06 ### Landscaping Front and rear garden builds across Essex. Read Service Brief ](/services/landscaping)[ 07 ### New Build Homes Single-plot new build homes across Essex. Read Service Brief ](/services/new-build-homes)[ 08 ### Driveways & Patios Block paving, porcelain patios, natural stone and resin-bound driveways across Essex. Read Service Brief ](/services/driveways-patios)[ 09 ### Bathroom & Kitchen Renovations Full bathroom and kitchen renovations across Essex. Read Service Brief ](/services/bathroom-kitchen-renovations)[ 010 ### Structural Alterations & Repairs Failed lintels, sagging openings, steel beam installs, internal wall removals and structural alterations across Essex. Read Service Brief ](/services/structural-repairs) Why Choose Us In Upminster ## Trust Built On The Ground. 20 min From our Grays yard RM14 Postcode worked weekly 35+ yrs combined Across Essex & east London Spec'd To finish, not to budget What's Specific To Upminster ## Local Problems, Local Answers. Property type, climate, building age and infrastructure all behave differently in Upminster. Generic builders don't account for it. We do. ### Conservation Areas & TPOs Parts of central Upminster sit in conservation areas with restrictions on external alterations, and many of the larger plots carry Tree Preservation Orders on mature trees. We check the planning context before quoting so the design we propose is the design we can actually build. ### Mature Tree Cover & Foundations Upminster's larger plots typically carry mature trees on or near the boundaries. Foundation design needs to account for root influence zones — depth, type and detailing all vary depending on species and distance. ### Higher-Spec Finish Expectations Upminster's market expects higher-spec finishes — solid timber doors, designer kitchens, full-height tiling, quality glazing. We price for the spec, not a generic budget. ### Older Detached Stock With Mixed Repairs A lot of the inter-war Upminster detached stock has been part-extended, part-rewired and part-replumbed over decades. A coordinated refurbishment pulls everything to a consistent standard in one pass. How It Works ## First Call To Final Sign-Off. 01 ### Enquiry Tell us the brief by phone, email or form. 02 ### On-Site Survey We come out, measure up and listen properly. 03 ### Fixed Written Quote Itemised quote with a clear programme — inside 48 hours. 04 ### Build & Sign-Off On site daily, tidy at end of day, signed off when you're happy. Upminster Questions ## Straight Answers. Cost, response time, coverage, emergency availability — the Upminster questions everyone asks, answered before you call. [Ask Yours](/contact) ### Do you cover all of Upminster? + Yes — RM14 covering Upminster town centre, Cranham, Corbets Tey, North Ockendon and the surrounding villages. ### How long to reach an Upminster job from Grays? + Around 15–20 minutes via the A127 and B1421. Easily scheduled alongside Romford, Hornchurch and Grays survey days. ### Can you take on larger Upminster extension projects? + Yes — full wrap-around, two-storey rear, side and rear combined schemes, larger garden-room annexes. The bigger plots support bigger briefs. ### Do you handle Havering Council planning and building control? + Yes — submissions, Article 4 and conservation-area checks, and building control inspections at every required stage. ### Can you build standalone garden rooms or annexes in Upminster? + Yes — bespoke timber-framed garden rooms with kitchenettes, shower rooms and proper insulation. Permitted-development and TPO checks done before quoting. ### How much does a two-storey extension cost in Upminster? + Cost depends on size, ground conditions and finish. Upminster briefs typically include higher-spec finishes which we price for transparently. Itemised fixed quotes after a site visit. ### Do you work in Upminster conservation areas? + Yes — to the materials and methods the conservation officer requires. Matched brick, lime mortars, sympathetic detailing. ### Can you build a new house on an Upminster plot? + Yes — ground-up new-build houses where the plot has consent. Foundations to final decoration, building control sign-off, warranty coordinated. Nearby Service Areas ## We Also Work In… [All Service Areas](/service-areas) [Builders In Romford ](/service-areas/romford) [Builders In Hornchurch](/service-areas/hornchurch) [Builders In Grays](/service-areas/grays) Next Step · Upminster ## Upminster Job? Built To Spec, Quoted In Writing. Free site survey across Upminster, fixed written quote inside 48 hours, no obligation. 35+ years on the tools, Grays-based. [Request Free Estimate](/contact) [01375 802765](tel:+441375802765) Listed on Checkatrade 35+ Years Grays-Based ![1st Class Building & Cladding](/__l5e/assets-v1/da7878a8-c82a-4ac1-b267-5e8a371c31f2/1stclass-logo.png) Family-run Essex builders with 35 years' combined hands-on experience. Extensions, refurbishments, loft conversions, luxury garden rooms and landscaping across Thurrock, Basildon, Romford and the wider Essex region. [01375 802765](tel:+441375802765)[1stclasscladding@gmail.com](mailto:1stclasscladding@gmail.com) 57 Malvern Road, Grays, RM17 5TH [](https://www.instagram.com/1st_class_building_ltd)[](https://www.facebook.com/share/1CpVA5G8ub/) [Listed on Checkatrade ](https://www.checkatrade.com/trades/1stclasscladdingandbuildinglimited "View our verified Checkatrade profile") ### EXPLORE - [Home](/) - [About](/about) - [Services](/services) - [Service Areas](/service-areas) - [Our Work](/our-work) - [Contact](/contact) ### SERVICES - [Extensions](/services/extensions "Extensions — Essex") - [Cladding](/services/cladding "Cladding — Essex") - [Luxury Garden Rooms](/services/luxury-garden-rooms "Luxury Garden Rooms — Essex") - [Refurbishments](/services/refurbishments "Refurbishments — Essex") - [Loft Conversions](/services/loft-conversions "Loft Conversions — Essex") - [Landscaping](/services/landscaping "Landscaping — Essex") - [New Build Homes](/services/new-build-homes "New Build Homes — Essex") - [Driveways & Patios](/services/driveways-patios "Driveways & Patios — Essex") - [Bathroom & Kitchen](/services/bathroom-kitchen-renovations "Bathroom & Kitchen — Essex") - [Structural Alterations & Repairs](/services/structural-repairs "Structural Alterations & Repairs — Essex") ### SERVICE AREAS - [Builders in Grays](/service-areas/grays "Builders in Grays") - [Builders in Thurrock](/service-areas/thurrock "Builders in Thurrock") - [Builders in Basildon](/service-areas/basildon "Builders in Basildon") - [Builders in Billericay](/service-areas/billericay "Builders in Billericay") - [Builders in Rochford](/service-areas/rochford "Builders in Rochford") - [Builders in Romford](/service-areas/romford "Builders in Romford") - [Builders in Upminster](/service-areas/upminster "Builders in Upminster") - [Builders in Hornchurch](/service-areas/hornchurch "Builders in Hornchurch") - [Builders in Essex](/service-areas/essex "Builders in Essex") © 2026 1st Class Cladding & Building Ltd. 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