--- title: "Roofing & Builders in Great Dunmow | J&Co Contractors" description: "Roofing & building contractors covering Great Dunmow. Period property work, extensions, renovations. 25 yrs' experience. Call 01279 216 215." lang: en-GB json-ld: | [ { "@context": "https://schema.org", "@type": "RoofingContractor", "@id": "https://jandco-contractorsltd.co.uk/areas/great-dunmow/#localbusiness", "name": "J&Co Contractors", "image": "https://jandco-contractorsltd.co.uk/og.jpg", "url": "https://jandco-contractorsltd.co.uk/areas/great-dunmow/", "telephone": "+441279216215", "priceRange": "££", "address": { "@type": "PostalAddress", "streetAddress": "1 Ugley Hall Cottages, Ugley", "addressLocality": "Bishop's Stortford", "addressRegion": "Hertfordshire", "postalCode": "CM22 6JB", "addressCountry": "GB" }, "geo": { "@type": "GeoCoordinates", "latitude": 51.8722, "longitude": 0.3589 }, "areaServed": [ { "@type": "Place", "name": "Great Dunmow" }, { "@type": "Place", "name": "Felsted" }, { "@type": "Place", "name": "Little Dunmow" }, { "@type": "Place", "name": "Barnston" }, { "@type": "Place", "name": "High Easter" }, { "@type": "Place", "name": "Stansted Mountfitchet" } ], "openingHoursSpecification": [ { "@type": "OpeningHoursSpecification", "dayOfWeek": [ "Sunday" ], "opens": "07:00", "closes": "17:30" }, { "@type": "OpeningHoursSpecification", "dayOfWeek": [ "Monday" ], "opens": "07:00", "closes": "17:00" }, { "@type": "OpeningHoursSpecification", "dayOfWeek": [ "Tuesday" ], "opens": "07:30", "closes": "17:00" }, { "@type": "OpeningHoursSpecification", "dayOfWeek": [ "Wednesday" ], "opens": "07:00", "closes": "17:30" }, { "@type": "OpeningHoursSpecification", "dayOfWeek": [ "Thursday" ], "opens": "07:00", "closes": "17:30" }, { "@type": "OpeningHoursSpecification", "dayOfWeek": [ "Friday" ], "opens": "06:00", "closes": "18:00" }, { "@type": "OpeningHoursSpecification", "dayOfWeek": [ "Saturday" ], "opens": "09:00", "closes": "17:00" } ], "sameAs": [ "https://www.facebook.com/share/18mTGdCPdF/?mibextid=wwXIfr", "https://maps.app.goo.gl/dkf9mVRPyaY3TTen6" ] }, { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "Do you cover Felsted, Little Dunmow and the surrounding villages?", "acceptedAnswer": { "@type": "Answer", "text": "Yes — every village across the CM6 area plus the wider Uttlesford district. Travel times under 35 minutes from our Ugley base for any village address." } }, { "@type": "Question", "name": "Do you work on listed and conservation-area properties in Great Dunmow?", "acceptedAnswer": { "@type": "Answer", "text": "Yes — listed building consent and conservation-area applications are routine. We coordinate with Uttlesford District Council's conservation officers and use period-appropriate materials throughout." } }, { "@type": "Question", "name": "Can you handle barn conversions and agricultural building conversions?", "acceptedAnswer": { "@type": "Answer", "text": "Yes — barn conversions and converted agricultural buildings are a regular part of our load across the surrounding villages. Traditional materials, oak structural work and sympathetic insulation all standard." } }, { "@type": "Question", "name": "How much does a typical extension cost in Great Dunmow?", "acceptedAnswer": { "@type": "Answer", "text": "Single-storey rear extensions £40,000–£90,000. Double-storey £75,000–£140,000. Wrap-around £100,000+. Every project quoted individually after a site visit." } }, { "@type": "Question", "name": "How quickly can you attend an emergency in Great Dunmow?", "acceptedAnswer": { "@type": "Answer", "text": "Same-day response for active leaks in normal conditions. 20–25 minute travel time. Out-of-hours emergencies — call 07379 964569." } }, { "@type": "Question", "name": "Do you do flat roof replacements on modern estate extensions?", "acceptedAnswer": { "@type": "Answer", "text": "Yes — failed single-ply and torch-on felt flat roofs on 1990s/2000s extensions are a regular Great Dunmow scope. We strip and re-cover with EPDM or GRP for 25+ year lifespans." } }, { "@type": "Question", "name": "Are your quotes free in Great Dunmow?", "acceptedAnswer": { "@type": "Answer", "text": "Yes — every quote is free, owner-led, and itemised in writing. No obligation, no high-pressure sales." } } ] }, { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "item": "https://jandco-contractorsltd.co.uk/" }, { "@type": "ListItem", "position": 2, "name": "Areas", "item": "https://jandco-contractorsltd.co.uk/areas/" }, { "@type": "ListItem", "position": 3, "name": "Great Dunmow", "item": "https://jandco-contractorsltd.co.uk/areas/great-dunmow/" } ] } ] --- We use essential cookies to run this site, and optional cookies only with your consent. [Cookie policy](/cookie-policy/) AcceptReject Open 7 days · Hours vary by day · 25 years' experience [Office: 01279 216 215](tel:01279216215) | [Mobile: 07379 964569](tel:07379964569) [![J&Co Contractors logo](/assets/jandco-logo-DkXiFtbE.png)](/) Services Areas [About](/about/) [Our Work](/our-work/) [Blog](/blog/) [Reviews](/reviews/) [Contact](/contact/) [01279 216 215](tel:01279216215) [Free Quote](/contact/) ![Great Dunmow market square with traditional timber-framed buildings — J&Co Contractors coverage area](/assets/area-great-dunmow-hero-CNpoXLOr.jpg) 1. [Home](/) 2. [Areas](/areas/) 3. Great Dunmow Great Dunmow, Essex # Roofing & Building Contractors in Great Dunmow Roofing, period property repair, extensions and full renovation across CM6 — from Great Dunmow town centre out through Felsted, Little Dunmow and the surrounding villages. [Get a Free Quote](/contact) [01279 216 215](tel:01279216215) Standard surveys booked within 5 working days. Active leaks attended same day. 25 years' experience CRC Certified Roofer Workmanship guarantee Open 7 days Local Coverage ## Great Dunmow combines historic centre with significant modern development Great Dunmow's housing stock divides into two clear parts. The historic town centre around the Doctor's Pond and the Market Place has substantial period stock — timber-framed medieval and Tudor buildings, Georgian townhouses, Victorian additions — much of it within the conservation area. The modern development running south of the town toward the bypass is largely 1990s–2020s estates with conventional construction. Both parts get our full attention. Lime mortar, reclaimed brick and sympathetic detailing on the period stock; conventional materials and modern detailing on the newer estates. Surrounding villages (Felsted, Little Dunmow, High Easter, Barnston) typically combine older village-centre stock with modern infill development. Travel time from our Ugley base to Great Dunmow is typically 20–25 minutes, well within standard coverage. Active leaks attended same day in normal conditions. CM6 ![Two-storey rear extension recently completed on a Great Dunmow family home](/assets/upload-009-DFap0EVo.jpeg) Rear extension completed in Great Dunmow, 2025. Services in Great Dunmow ## Services we provide in Great Dunmow [ ![Flat roofing service — EPDM and GRP installs](/assets/wa-435-47-C__F_29U.jpeg) ### Flat Roofing EPDM, GRP and felt systems with 25+ year lifespans on extensions, garages and dormers. Flat Roofing in Great Dunmow ](/flat-roofing/)[ ![Roof repair service — slipped tile replacement](/assets/wa-435-169-BMBPQKLs.jpeg) ### Roof Repairs Slipped tiles, perished pointing, lead flashing and ridge work — diagnosed honestly. Roof Repairs in Great Dunmow ](/roof-repairs/)[ ![Emergency roofing service — storm damage make-safe](/assets/wa-435-49-moknWQ20.jpeg) ### Emergency Repairs Same-day storm damage cover, tarpaulin make-safe, insurance-ready reports. Emergency Repairs in Great Dunmow ](/emergency-roof-repairs/)[ ![UPVC guttering, fascia and soffit installation](/assets/upload-009-DFap0EVo.jpeg) ### Guttering & Roofline Full UPVC roofline replacements with proper falls and stainless fixings. Guttering & Roofline in Great Dunmow ](/guttering-fascias-soffits/)[ ![Chimney repointing and lead flashing service](/assets/upload-019-BqExN-Zc.jpeg) ### Chimney Repairs Repointing, rebuilds, lead flashing and complete chimney removals — properly scaffolded. Chimney Repairs in Great Dunmow ](/chimney-repairs-repointing/)[ ![House extension building service](/assets/upload-009-DFap0EVo.jpeg) ### Extensions Single, double-storey and wrap-around extensions delivered end-to-end. Extensions in Great Dunmow ](/building-extensions/)[ ![Loft conversion service — Velux and dormer](/assets/wa-435-79-Cfvt7K6N.jpeg) ### Loft Conversions Velux, dormer and hip-to-gable conversions adding bedrooms without losing the garden. Loft Conversions in Great Dunmow ](/loft-conversions/)[ ![Whole-house renovation and refurbishment service](/assets/renovations-kitchen-Bmk2Kf26.jpg) ### Renovations Whole-house refurbishments, kitchens, bathrooms — one team, one programme. Renovations in Great Dunmow ](/renovations-refurbishments/)[ ![Brickwork and masonry service — garden wall construction](/assets/43-BJOyMPOw.jpeg) ### Brickwork Garden walls, piers, structural brickwork and matching repairs. Brickwork in Great Dunmow ](/brickwork-masonry/)[ ![Damp proofing service — chemical DPC and re-plaster](/assets/wa-435-2-CQuf84Cu.jpeg) ### Damp Proofing Honest damp diagnosis, proportionate treatment, 20–30 year guarantees. Damp Proofing in Great Dunmow ](/damp-proofing-waterproofing/)[ ![Plastering service — interior wall skim coat](/assets/plastering-skim-ChDqW1xq.png) ### Plastering & Render Skim coats, full re-plasters, K-Rend and traditional render finishes. Plastering & Render in Great Dunmow ](/plastering-rendering/)[ ![Patio installation service — porcelain slabs](/assets/wa-435-105-CDnjSQcw.jpeg) ### Patios & Driveways Porcelain, block paving and resin laid on properly prepared sub-bases. Patios & Driveways in Great Dunmow ](/patio-driveway-installations/)[ ![Fencing installation service — closeboard panels](/assets/upload-036-C-t1697I.jpeg) ### Fencing Closeboard fencing and gates with concrete-set posts — built to last. Fencing in Great Dunmow ](/fencing-garden-walls/)[ ![Property maintenance service — multi-trade repairs](/assets/up-house-front-driveway-B_svNh7X.png) ### Property Maintenance Reactive and planned maintenance for landlords and homeowners. Property Maintenance in Great Dunmow ](/property-maintenance/) Why Great Dunmow ## Why Great Dunmow homeowners choose J&Co ### Locally based, locally trusted Owner Jamie Pocock has been working on roofs and buildings across this corner of Hertfordshire and Essex for 25 years. Most weeks, we're on a job within a few miles of you. ### Written completion sign-off Every job we deliver is covered by a completion sign-off — terms confirmed on the quote, not buried in small print. ### Honest quotes, no day-rate drift Itemised written quotes by line item. Variations approved in writing before action. The number you sign is the number you pay. ### Open seven days a week Hours vary by day with extended weekday cover — Friday from 06:00 and Sunday through to midnight. We answer the phone when other contractors don't, especially in storm conditions. Local Issues ## Common roofing & building issues in Great Dunmow The split housing stock in Great Dunmow means we see two distinct sets of issues. On the period stock around the conservation core, the dominant scope is chimney repointing (perished lime mortar joints), peg-tile and clay tile roof repair, oak frame repair on the older medieval properties, and damp diagnosis on properties with bridged DPCs from raised paths and driveways accumulated over decades. On the modern estates south of the town, the typical scope is single-ply flat roof failures on extensions added 10–20 years ago (cheap installs that are now leaking), single-storey rear extensions to extend kitchens, and full UPVC roofline replacements where the original 1990s painted timber has reached end-of-life. On the surrounding agricultural villages — Felsted, Little Dunmow, Barnston — converted barns and farm buildings are a regular part of our load. Specialised scope: traditional pantile and clay tile roofs, oak structural repair, sympathetic insulation upgrades that don't trap moisture in historic fabric. Recent Work ## Recent jobs around Great Dunmow [View full portfolio](/our-work) ![Two-storey rear extension built on a Great Dunmow modern home](/assets/upload-009-DFap0EVo.jpeg) ![Pitched roof completed on a Great Dunmow village property](/assets/wa-435-169-BMBPQKLs.jpeg) ![Period chimney repointed on a Great Dunmow conservation-area home](/assets/upload-019-BqExN-Zc.jpeg) ![Velux loft conversion completed in Great Dunmow](/assets/wa-435-79-Cfvt7K6N.jpeg) Coverage Map ## Where we cover around Great Dunmow FAQs ## Great Dunmow — frequently asked questions ### Do you cover Felsted, Little Dunmow and the surrounding villages? ### Do you work on listed and conservation-area properties in Great Dunmow? ### Can you handle barn conversions and agricultural building conversions? ### How much does a typical extension cost in Great Dunmow? ### How quickly can you attend an emergency in Great Dunmow? ### Do you do flat roof replacements on modern estate extensions? ### Are your quotes free in Great Dunmow? Nearby ## Other areas we cover near Great Dunmow [ ![Roofing and building services coverage area near Bishop's Stortford](/assets/area-bishops-stortford-hero-CAkseKbu.jpg) Roofers in Bishop's Stortford ](/areas/bishops-stortford/)[ ![Roofing and building services coverage area near Saffron Walden](/assets/area-saffron-walden-hero-Bf6K-Tcp.jpg) Roofers in Saffron Walden ](/areas/saffron-walden/)[ ![Roofing and building services coverage area near Stansted Mountfitchet](/assets/area-stansted-mountfitchet-hero-5hTZwdMU.jpg) Roofers in Stansted Mountfitchet ](/areas/stansted-mountfitchet/) ## Roofing or building work in Great Dunmow? Owner-led survey, written itemised quote. Seven days a week across Essex. [Request Free Quote](/contact) [01279 216 215](tel:01279216215) Page last updated: May 2026 · J&Co Builders Ltd · 1 Ugley Hall Cottages, Bishop's Stortford CM22 6JB ![J&Co Contractors](/assets/jandco-logo-DkXiFtbE.png) Owner-led roofing and building contractors covering Bishop's Stortford, Hertfordshire and Essex. 25 years of hands-on trade experience. Open seven days. [01279 216 215 (office)](tel:01279216215) [07379 964569 (mobile)](tel:07379964569) [info@jandco-contractorsltd.co.uk](mailto:info@jandco-contractorsltd.co.uk) 1 Ugley Hall Cottages, Bishop's Stortford CM22 6JB Open 7 days a week - Sun 07:00–17:30 - Mon 07:00–17:00 - Tue 07:30–17:00 - Wed 07:00–17:30 - Thu 07:00–17:30 - Fri 06:00–18:00 - Sat 09:00–17:00 [](https://www.facebook.com/share/18mTGdCPdF/?mibextid=wwXIfr) ### Roofing - [All roofing services](/roofing/) - [Flat Roofing](/flat-roofing/) - [Roof Repairs & Maintenance](/roof-repairs/) - [Emergency Roof Repairs](/emergency-roof-repairs/) - [Guttering, Fascias & Soffits](/guttering-fascias-soffits/) - [Chimney Repairs & Repointing](/chimney-repairs-repointing/) ### Building & Construction - [All building services](/building-construction/) - [Building & Extensions](/building-extensions/) - [Loft Conversions](/loft-conversions/) - [Renovations & Refurbishments](/renovations-refurbishments/) - [Brickwork & Masonry](/brickwork-masonry/) - [Damp Proofing & Waterproofing](/damp-proofing-waterproofing/) - [Plastering & Rendering](/plastering-rendering/) - [Patio & Driveway Installations](/patio-driveway-installations/) - [Fencing & Garden Walls](/fencing-garden-walls/) - [Property Maintenance](/property-maintenance/) ### Areas We Cover - [Bishop's Stortford](/areas/bishops-stortford/) - [Stansted Mountfitchet](/areas/stansted-mountfitchet/) - [Sawbridgeworth](/areas/sawbridgeworth/) - [Great Dunmow](/areas/great-dunmow/) - [Harlow](/areas/harlow/) - [Saffron Walden](/areas/saffron-walden/) - [Epping](/areas/epping/) - [Ware](/areas/ware/) - [Hoddesdon](/areas/hoddesdon/) - [Broxbourne](/areas/broxbourne/) - [Cheshunt](/areas/cheshunt/) - [Welwyn Garden City](/areas/welwyn-garden-city/) - [Stevenage](/areas/stevenage/) ### Company - [About J&Co](/about/) - [Our Recent Work](/our-work/) - [Blog](/blog/) - [Customer Reviews](/reviews/) - [Contact Us](/contact/) © 2026 J&Co Builders Ltd · Trading as J&Co Contractors · All rights reserved. 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