We use essential cookies to run this site, and optional cookies only with your consent. Cookie policy AcceptReject Open 7 days · Hours vary by day · 25 years' experience Office: 01279 216 215 | Mobile: 07932 442502 Services Areas About Our Work Blog Reviews Contact 01279 216 215 Free Quote - Home - Roofing - Chimney Repairs & Repointing Chimney Repairs & Repointing # Chimney Repairs & Repointing in Bishop's Stortford & Hertfordshire Repointing, full and partial rebuilds, lead flashing renewal, pots, cowls and complete chimney removals — properly scaffolded, properly mortared, properly finished. Get a Free Quote 01279 216 215 25 years' experience Five-star rated Workmanship guarantee 25 Years' Experience CRC Certified Roofer SafeContractor Approved Workmanship Guarantee Open 7 Days Herts & Essex Coverage Overview ## Chimneys Fail Slowly Then All At Once Chimneys take more weather punishment than any other part of a roof — exposed on all sides, often the highest point of the building, and subject to constant freeze-thaw cycling on the brickwork and mortar. Most domestic chimneys in our area are 60–100+ years old and have had limited intervention since they were built. We carry out the full scope of chimney work — repointing perished mortar, replacing lead flashing at the upstand, rebuilding crowned-out cappings, fitting new pots and cowls, and removing chimneys that are no longer needed (with proper roof reinstatement). Always scaffolded, always properly mortared, always finished to last. Why It Matters ## What an Unmaintained Chimney Actually Costs Perished mortar joints let water into the brickwork. Frost expands the trapped water, blowing the brick face off in winter — once you've lost two or three brick faces, structural integrity starts to drop. Failed lead flashing lets water track into the roof structure at the upstand, causing rafter rot above the ceiling line. Crowned-out cappings let rain straight down the flue, soaking the chimney breast inside the property. Left long enough, partial rebuilds become full rebuilds, and full rebuilds become safety risks (loose brickwork falling onto the roof or garden below). Catching the issues at the repointing stage costs hundreds; leaving them to escalate costs thousands and includes interior plaster damage, ceiling stains and structural timber repair. Our Process ## How We Deliver Chimney Repairs & Repointing 01 ### Roof-Level Survey Scaffold or tower access for proper inspection — most chimney issues are invisible from ground level. 02 ### Diagnosis & Quote Honest assessment of what's needed — repointing, partial rebuild, lead replacement, or full rebuild — with itemised written quote. 03 ### Scaffold Up Proper independent scaffold around the chimney for safe working access. No cherry-pickers, no rushed ladder work. 04 ### Repair Works Repointing with correct mortar mix, lead flashing dressed in properly, cappings rebuilt or recast, pots and cowls fitted. 05 ### Finish & Guarantee Final inspection, scaffold down on the chimney works. Benefits ## What You Get with J&Co ### Always Scaffolded Proper independent scaffold around every chimney we work on — non-negotiable. ### Correct Mortar Mix Lime mortar on older properties, NHL mixes where appropriate — not generic sand-and-cement. ### Lead Flashing Done Right Code 4/5 lead, properly dressed and re-pointed, not smeared with mastic. ### Most Jobs in 1–3 Days Standard repointing or flashing replacement completed in 1–2 days plus scaffold time. Technical Detail ## Repointing, Rebuilds and Removals — What Each One Involves Chimney repointing is the most common job. Old, perished mortar is raked out to a depth of 15–20mm and replaced with a correctly specified mortar mix. The mix matters — modern hard cement-rich mortar on a 100-year-old soft brick chimney does more harm than good, blowing the brick faces off as freeze-thaw cycles work on the harder pointing. We use lime mortar or weak cement mixes appropriate to the brick. Partial chimney rebuilds become necessary when the brickwork itself has lost too many faces or the cappings have crowned out so badly that water is freely entering the brickwork core. We strip back to sound brickwork, rebuild in salvaged or matched brick, and recast a proper concrete capping with appropriate fall to shed water. Full chimney removals for chimneys that are no longer used (most modern central heating means the chimney is purely decorative). Stack removed down to roof level or below ceiling level, roof structure made good with new rafters and battens, and the roof tiled or slated to match. Often paired with a roof repair at the same time to reduce scaffold cost. Lead flashing work is the silent issue on most chimneys — perished or poorly-dressed lead is the entry point for the majority of chimney-related leaks. We use Code 4 or Code 5 lead, properly dressed, with correct mortar bedding and chasing into the brickwork joint. Repointed chimney stack with new Code 5 lead flashing — typical full chimney repair scope. Honest Pricing ## How Much Does Chimney Work Cost in Hertfordshire? All chimney work requires scaffolding for safe access, which is usually the largest single line on the quote. Honest guide ranges below. Repointing only £600–£1,400 Repointing of a typical single chimney stack including scaffold and mortar mix appropriate to the brickwork. Repoint + lead flashing £1,200–£2,500 Full chimney service — repointing, lead flashing renewal, capping check and pot reseat. Full rebuild / removal £2,500–£6,000+ Partial or full rebuild, or complete removal with roof reinstatement. Quoted individually. ### What affects the price - Chimney height and accessibility - Scaffold complexity and duration - Mortar mix specification (lime vs cement-based) - Lead flashing weight and dressing complexity - Number of pots and capping condition - Roof reinstatement scope (for removals) Get Your Free Written Quote Cost Factors ## What Affects the Cost of Chimney Repointing? Chimney work is priced after a proper look at the stack, not over the phone. These are the things that determine what your quote looks like. ### Extent of the damage Raking out and repointing a few courses near the top is a small job. A stack where the mortar has failed from cap to flashing is a full repoint. ### Chimney height and access Stack position on the roof, roof pitch and the scaffold design needed to reach it safely all feed directly into the cost. ### Number of stacks Two or more stacks on the same scaffold is far more efficient than returning separately for each. ### Repointing alone vs partial rebuild Where brick faces have blown or the stack is leaning, rebuilding courses is the correct fix and costs more than pointing. ### Material matching on older properties Soft Victorian brickwork needs lime or weak NHL mortar and sympathetic brick matching — more skilled labour and specific materials than a modern stack. Get a Free Quote Service Area ## Areas We Cover for Chimney Repairs & Repointing We deliver this service across our full Hertfordshire and Essex catchment. Regular projects in Bishop's Stortford, Sawbridgeworth, Harlow, Saffron Walden, Stansted Mountfitchet, Great Dunmow, Epping, Ware, Hoddesdon, Broxbourne, Cheshunt, Welwyn Garden City and Stevenage. Outside this list? Call us with your postcode — we frequently work the wider London fringe and across the rest of Hertfordshire. Recent Work ## Recent Chimney Repairs & Repointing Projects View full portfolio FAQs ## Chimney Repairs & Repointing — Frequently Asked Questions ### svg]:rotate-180 text-left font-bold text-base hover:no-underline py-5" data-radix-collection-item=""> How do I know if my chimney needs repointing? ### svg]:rotate-180 text-left font-bold text-base hover:no-underline py-5" data-radix-collection-item=""> Can you remove a disused chimney? ### svg]:rotate-180 text-left font-bold text-base hover:no-underline py-5" data-radix-collection-item=""> What mortar do you use? ### svg]:rotate-180 text-left font-bold text-base hover:no-underline py-5" data-radix-collection-item=""> How long does scaffold need to be up? ### svg]:rotate-180 text-left font-bold text-base hover:no-underline py-5" data-radix-collection-item=""> Is lead flashing always lead? ### svg]:rotate-180 text-left font-bold text-base hover:no-underline py-5" data-radix-collection-item=""> Are chimney repairs guaranteed? ### svg]:rotate-180 text-left font-bold text-base hover:no-underline py-5" data-radix-collection-item=""> Do you handle Building Control for chimney removal? ### svg]:rotate-180 text-left font-bold text-base hover:no-underline py-5" data-radix-collection-item=""> How much does chimney repointing cost? ### svg]:rotate-180 text-left font-bold text-base hover:no-underline py-5" data-radix-collection-item=""> What's the difference between repointing and rebuilding? ### svg]:rotate-180 text-left font-bold text-base hover:no-underline py-5" data-radix-collection-item=""> How often should a chimney be repointed? ### svg]:rotate-180 text-left font-bold text-base hover:no-underline py-5" data-radix-collection-item=""> Is repointing disruptive to my roof? Related Services Roof Repairs & Maintenance Emergency Roof Repairs Guttering, Fascias & Soffits Brickwork & Masonry Back to Roofing ## Get a Free Chimney Repair Quote Owner-led roof-level survey, properly scaffolded works. Across Hertfordshire and Essex, seven days a week. Request Free Quote 01279 216 215 Page last updated: May 2026 · J&Co Builders Ltd · 1 Ugley Hall Cottages, Bishop's Stortford CM22 6JB 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) 07932 442502 (mobile) 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 We accept VISAAMEX PayG Pay ### Roofing - All roofing services - Flat Roofing - Roof Repairs & Maintenance - Emergency Roof Repairs - Guttering, Fascias & Soffits - Chimney Repairs & Repointing ### Building & Construction - All building services - Building & Extensions - Loft Conversions - Renovations & Refurbishments - Brickwork & Masonry - Damp Proofing & Waterproofing - Plastering & Rendering - Patio & Driveway Installations - Fencing & Garden Walls - Property Maintenance ### Areas We Cover - Bishop's Stortford - Stansted Mountfitchet - Sawbridgeworth - Great Dunmow - Harlow - Saffron Walden - Epping - Ware - Hoddesdon - Broxbourne - Cheshunt - Welwyn Garden City - Stevenage ### Company - About J&Co - Our Recent Work - Blog - Customer Reviews - Contact Us © 2026 J&Co Builders Ltd · Trading as J&Co Contractors · All rights reserved. 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