--- title: "Builders in Grays Essex | Extensions, Renovations & Garden Rooms" description: "Grays-based builders covering RM17 and the wider Thurrock area. Extensions, loft conversions, garden rooms and refurbishments. Same-day surveys. Call 07576 567152." lang: en json-ld: | [ { "@context": "https://schema.org", "@type": "Organization", "@id": "https://1stclasscladdingandbuilding.co.uk/#organization", "name": "1st Class Cladding & Building Ltd", "alternateName": "1st Class Building & Cladding", "url": "https://1stclasscladdingandbuilding.co.uk/", "logo": "/__l5e/assets-v1/09702f58-e6ca-4235-bb55-7c7986f15706/1stclass-favicon.png", "telephone": "01375 802765", "email": "1stclasscladding@gmail.com", "address": { "@type": "PostalAddress", "streetAddress": "57 Malvern Road", "addressLocality": "Grays", "addressRegion": "Essex", "postalCode": "RM17 5TH", "addressCountry": "GB" }, "areaServed": [ "Grays", "Thurrock", "Basildon", "Billericay", "Rochford", "Romford", "Upminster", "Hornchurch", "Essex" ], "knowsAbout": [ "Extensions", "Cladding", "Luxury Garden Rooms", "Refurbishments", "Loft Conversions", "Landscaping", "New Build Homes", "Driveways & Patios", "Bathroom & Kitchen", "Structural Alterations & Repairs" ], "sameAs": [ "https://www.instagram.com/1st_class_building_ltd", "https://www.facebook.com/share/1CpVA5G8ub/", "https://maps.app.goo.gl/ob25c6bvdT3d4Vuj8" ], "contactPoint": { "@type": "ContactPoint", "telephone": "01375 802765", "contactType": "customer service", "areaServed": "GB", "availableLanguage": [ "English" ] } }, { "@context": "https://schema.org", "@type": "WebSite", "@id": "https://1stclasscladdingandbuilding.co.uk/#website", "name": "1st Class Building & Cladding", "url": "https://1stclasscladdingandbuilding.co.uk/", "publisher": { "@id": "https://1stclasscladdingandbuilding.co.uk/#organization" }, "inLanguage": "en-GB" }, { "@context": "https://schema.org", "@type": "LocalBusiness", "@id": "/service-areas/grays#localbusiness", "name": "1st Class Cladding & Building Ltd — Builders in Grays", "description": "Grays-based builders covering RM17 and the wider Thurrock area. Extensions, loft conversions, garden rooms and refurbishments. Same-day surveys. Call 07576 567152.", "telephone": "01375 802765", "email": "1stclasscladding@gmail.com", "priceRange": "££", "address": { "@type": "PostalAddress", "streetAddress": "57 Malvern Road", "addressLocality": "Grays", "postalCode": "RM17 5TH", "addressCountry": "GB" }, "areaServed": { "@type": "Place", "name": "Grays", "geo": { "@type": "GeoCoordinates", "latitude": 51.4757, "longitude": 0.323 } }, "openingHours": [ "Mo-Fr 09:00-17:00", "Sa 09:00-12:00" ] }, { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "Are you actually based in Grays?", "acceptedAnswer": { "@type": "Answer", "text": "Yes — our working address is 57 Malvern Road, Grays, Essex, RM17 5TH. 1st Class Cladding & Building Ltd, family-run and owner-led by. Not a London outfit pretending to cover Essex." } }, { "@type": "Question", "name": "How fast can you survey a job in Grays?", "acceptedAnswer": { "@type": "Answer", "text": "We can usually get out same-day or next-day for Grays properties. Written quote follows inside 48 hours of the site visit." } }, { "@type": "Question", "name": "Do you cover Chafford Hundred, Stifford Clays, Little Thurrock and West Thurrock?", "acceptedAnswer": { "@type": "Answer", "text": "Yes — every part of Grays and the surrounding Thurrock estates. All inside a 10-minute drive of the yard." } }, { "@type": "Question", "name": "Can you work on the older terraces around Bridge Road?", "acceptedAnswer": { "@type": "Answer", "text": "Yes — and we detail solid-brick walls properly with breathable build-ups where the wall fabric demands it. Slapping modern gypsum on solid brick traps moisture and causes plaster failure inside a year." } }, { "@type": "Question", "name": "Do you handle Thurrock Council building control?", "acceptedAnswer": { "@type": "Answer", "text": "Yes — we book and host inspections at every required stage and hand you the completion paperwork at sign-off. Standard part of every extension, loft or structural job." } }, { "@type": "Question", "name": "How much does a single-storey extension cost in Grays?", "acceptedAnswer": { "@type": "Answer", "text": "Cost depends on size, ground conditions and finish — Grays clay subsoil typically means deeper foundations than the generic spec. We give itemised fixed written quotes after a site visit so you can see exactly what each element costs." } }, { "@type": "Question", "name": "Can you take on emergency structural work in Grays?", "acceptedAnswer": { "@type": "Answer", "text": "Yes — storm damage, structural cracking, collapsed walls, water ingress. We'll make-safe inside 24 hours where possible and follow up with a proper repair quote." } }, { "@type": "Question", "name": "Do you offer guarantees on work done in Grays?", "acceptedAnswer": { "@type": "Answer", "text": "Yes — work we stand behind on completion, plus manufacturer-backed cover on rendered systems, roofing membranes and structural products. All sign-off paperwork bundled into a handover pack." } } ] }, { "@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": "Grays", "item": "/service-areas/grays" } ] } ] --- 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. Grays Essex Builders · Grays · 35+ Years On The Tools # Builders In Grays. Based On Malvern Road. Same Postcode, Same Phone, 35+ Years Combined. We're a Grays builder serving Grays. Extensions, full refurbishments, loft conversions, luxury garden rooms and structural repairs — delivered by the team that lives, trades and pays rates in RM17. [Request Free Estimate](/contact) [01375 802765](tel:+441375802765) Same-day site surveys across Grays · Fixed written quote inside 48 hours Covering Grays Same-day across RM17 Fixed Written Quote Family-Run, Owner-Led Local Relevance · Grays ## A Grays Builder, Not A Builder Who Visits Grays. ### Why We Work In Grays Our yard, office and home address all sit in Grays — 57 Malvern Road, RM17 5TH. Grays isn't a service area for us, it's our doorstep. That changes how we work here: faster site surveys, faster turnaround on snags, and a real on-the-ground feel for what each part of town actually needs. From the Victorian and Edwardian terraces around Bridge Road and the older town centre, through to the post-war semis up around Stifford Clays and the newer estates pushing toward Chafford Hundred, we know the stock and we know the council. ### Grays Property Types We Know Grays carries a real mix of property types. The older town-centre and Bridge Road terraces are typically late-Victorian and Edwardian — solid-brick or early cavity, with bay fronts and rear outriggers ripe for side-return or wrap-around extensions. Around Stifford Clays, Little Thurrock and South Stifford the stock skews to 1950s–70s semis and short terraces, often carrying tired pebbledash, original single-glazed windows and dated kitchens crying out for a full refurbishment. Chafford Hundred and the riverside developments run on modern cavity construction with their own quirks around steel sizing, insulation continuity and Section 106 conditions. ### Common Briefs In Grays Most Grays jobs we price fall into four buckets: rear kitchen-diner extensions on the older terraces, full whole-house refurbishments on recently-bought properties before the new owners move in, loft conversions on the post-war semis where families need a third or fourth bedroom and en-suite, and luxury garden rooms doubling up as home offices or annexes for the long-stay relative. Driveway and patio re-lays are another regular call — Grays gardens take a beating from clay-heavy ground movement. ### Driving Time To Grays From our Malvern Road base most of Grays is inside a 10-minute drive. Little Thurrock, South Stifford, Stifford Clays, Chafford Hundred and West Thurrock are all on the doorstep. That matters when a job needs a quick midweek visit for a snag, a delivery sign-off or a same-day quote — we're not chasing the M25 to get to you. Services In Grays ## What We Build In Grays. [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 ### 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)[ 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 ### Luxury Garden Rooms Bespoke garden rooms, studios, home offices and gym annexes across Essex. Read Service Brief ](/services/luxury-garden-rooms)[ 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 Grays ## Trust Built On The Ground. RM17 Our own postcode 10 min Average reach across Grays 35+ yrs combined On the tools across Essex 48 hrs Written quote turnaround What's Specific To Grays ## Local Problems, Local Answers. Property type, climate, building age and infrastructure all behave differently in Grays. Generic builders don't account for it. We do. ### Clay Subsoil & Foundation Movement Grays and the wider Thurrock area sit on London Clay — shrinkable, expansive and prone to heave and subsidence around trees. Extension foundations need to go deeper here than the generic 1m minimum, especially within a tree's root influence zone. Get the depth wrong and you'll see cracking in the new brickwork inside two summers. ### Estuary Wind-Driven Rain Grays sits right on the Thames Estuary. Wind-driven rain off the river hits south-east elevations hard. Render systems, cavity trays, copings and weatherings have to be detailed properly or you'll see staining and damp ingress within a year. We spec breathable systems and proper drip details on every external job here. ### Older Terraces With Mixed Repairs A lot of the older Grays stock has been patched repeatedly over decades — cement render over original lime, plastic windows in stone openings, modern gypsum over solid brick. We strip back to sound substrate and rebuild in compatible materials so the next 30 years don't repeat the last 30. ### Tired Post-War Semis The 1950s–70s semis around Stifford Clays and Little Thurrock typically carry blown pebbledash, single-skin garage walls and dated rear extensions built without building control. A coordinated refurbishment — proper render system, insulation upgrade, structural sign-off on retro-fitted openings — transforms the property and locks in the value. 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. Grays Questions ## Straight Answers. Cost, response time, coverage, emergency availability — the Grays questions everyone asks, answered before you call. [Ask Yours](/contact) ### Are you actually based in Grays? + Yes — our working address is 57 Malvern Road, Grays, Essex, RM17 5TH. 1st Class Cladding & Building Ltd, family-run and owner-led by. Not a London outfit pretending to cover Essex. ### How fast can you survey a job in Grays? + We can usually get out same-day or next-day for Grays properties. Written quote follows inside 48 hours of the site visit. ### Do you cover Chafford Hundred, Stifford Clays, Little Thurrock and West Thurrock? + Yes — every part of Grays and the surrounding Thurrock estates. All inside a 10-minute drive of the yard. ### Can you work on the older terraces around Bridge Road? + Yes — and we detail solid-brick walls properly with breathable build-ups where the wall fabric demands it. Slapping modern gypsum on solid brick traps moisture and causes plaster failure inside a year. ### Do you handle Thurrock Council building control? + Yes — we book and host inspections at every required stage and hand you the completion paperwork at sign-off. Standard part of every extension, loft or structural job. ### How much does a single-storey extension cost in Grays? + Cost depends on size, ground conditions and finish — Grays clay subsoil typically means deeper foundations than the generic spec. We give itemised fixed written quotes after a site visit so you can see exactly what each element costs. ### Can you take on emergency structural work in Grays? + Yes — storm damage, structural cracking, collapsed walls, water ingress. We'll make-safe inside 24 hours where possible and follow up with a proper repair quote. ### Do you offer guarantees on work done in Grays? + Yes — work we stand behind on completion, plus manufacturer-backed cover on rendered systems, roofing membranes and structural products. All sign-off paperwork bundled into a handover pack. Nearby Service Areas ## We Also Work In… [All Service Areas](/service-areas) [Builders In Thurrock ](/service-areas/thurrock) [Builders In Basildon](/service-areas/basildon) [Builders In Romford](/service-areas/romford) Next Step · Grays ## Grays Job? Phone The Local Number. Free site survey across Grays, 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. Company No. 13266520. All rights reserved. [Privacy Policy](/privacy-policy)[Terms & Conditions](/terms-conditions)Mon–Fri 9:00AM – 5:00PM · Sat 9:00 – 12:00 [Call Now](tel:+441375802765)[Get Estimate](/contact)