Crumbling mortar, failed lead flashings and cracked pots — chimney problems are common across Basingstoke's housing stock. We make chimneys weathertight, safe and compliant.
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📞 Call Now: 0125 624 2410Chimney problems rarely announce themselves at the chimney. They show up as damp on a bedroom wall, and are routinely misdiagnosed as rising damp or condensation.
When it is not the answer: If the stack is sound and the pots are secure, sealing the flashing alone is often the whole job — a full repoint on a stack that does not need it is a waste of scaffold money. Read the full guide.
Chimneys are the most exposed part of any roof and Basingstoke's mix of 1960s estate housing and older period properties presents two distinct sets of chimney challenges. On the estates, simple repointing and flashing renewal keeps stacks sound. On older properties around Old Basing and the Top of Town, heritage-sensitive repairs require more specialist skills.
Chimney problems are rarely visible from the ground. We inspect from scaffold or secure ladder access, checking every mortar joint, the flaunching around the pots, the lead flashing at the roof junction, and the brickwork itself for frost damage, sulphate attack or structural movement. Inside, we check chimney breast walls for damp staining that reveals where water is entering.
Most chimney problems in Basingstoke result from several small failures rather than one dramatic one. Softening mortar, hairline flashing cracks and porous brickwork combine to produce persistent damp that no single repair resolves. Our inspection identifies every contributing factor so the repair addresses the complete problem.
Using the wrong mortar causes more damage than leaving the chimney alone. Modern cement mortar is rigid and impermeable — on soft older brickwork built with lime, it traps moisture inside the brick, causing the face to spall and crumble away. We use lime putty mortar on pre-1920s chimneys and flexible modified cement on post-war stacks. The correct choice depends on the original construction and on Basingstoke's specific exposure.
Safe chimney work requires scaffold — not ladders. This is the single biggest cost component, typically £400–£800. It is also why combining chimney jobs makes economic sense: repointing plus flashing renewal plus flaunching on one scaffold erection saves substantially over three separate visits. We always assess the complete chimney condition and recommend combining work where it reduces your total spend.
Chimney Repairs in Basingstoke: £150–£800+. Free, no-obligation quotes. Call 0125 624 2410.
Estate properties across Winklebury, Popley and Brighton Hill were built with standard brick chimney stacks using cement mortar. After 50–60 years of frost cycling on Basingstoke's chalk downland, this mortar is crumbling on thousands of chimneys. Repointing with a modern flexible mortar mix restores weatherproofing and typically lasts another 25–30 years.
The older properties around Old Basing — particularly the Victorian and Edwardian homes near Basing House ruins — often have more complex chimneys with decorative brickwork and original lime mortar. These require lime-based repointing to match the existing material and avoid the moisture trapping that cement causes on older brickwork. We carry out lime mortar chimney repairs to heritage standards.
Related Specialist Services: Leadwork · Roof Inspections
Repointing specifically — mortar, flaunching, cowls and capping →
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Call 0125 624 2410Four steps from first call to completed work. No call-out fee, no obligation, and a written quote before anything starts.
We inspect your Basingstoke chimney from scaffold or ladder access — checking every mortar joint, flashing, flaunching, pot, and the brickwork itself. We also check internally for damp on chimney breast walls.
You receive a condition report with photographs and a written quote for all recommended work. We identify the actual cause of any damp — not just the visible symptom.
Scaffold erected for safe access. Repointing, flashing renewal, flaunching replacement, or pot work completed using the correct mortar type for your chimney's age and construction.
Completed chimney inspected, all work photographed, site cleaned. You receive a written 10-year guarantee covering all chimney repairs.
Ready to start? Call 0125 624 2410 for your free survey.
Every mortar joint, the flaunching, the pots and the flashing checked, plus the chimney breast internally to trace where water is actually entering.
Photographs of what we found, with the mortar specification chosen for your stack's age — flexible cement on post-war brick, lime putty on anything pre-1920.
Safe chimney work needs scaffold, not ladders. It is the largest single cost and we itemise it separately so you can see it.
Repointing, flashing renewal, flaunching or pot work — combined where sensible so one scaffold erection covers everything.
Work photographed from the scaffold before it comes down, site cleared, guarantee issued.
| Job | Typical duration |
|---|---|
| Flashing renewal only | 1 day |
| Repointing, single stack | 1–2 days |
| Flaunching and pot replacement | 1 day |
| Combined repoint and flashing | 2 days |
| Full stack rebuild | 3–5 days |
Lime mortar cannot be applied in frost or driving rain and needs weeks to carbonate. We schedule Old Basing and Whitchurch heritage work around genuine weather windows.
Chimney work requires scaffold in effectively all cases. Scaffold is specified for: every chimney job — working from a ladder at stack height makes proper raking out and consistent joint filling impossible - always itemised in your written quote, never a hidden extra, and we arrange it.
Most Basingstoke estate housing has generous verges and driveway space, so scaffold and skips drop straight onto private ground. The older streets around the Top of Town are the exception, with narrow frontages and controlled on-street parking. Pavement scaffold and skip permits go through Basingstoke and Deane Borough Council; allow a few working days on streets like Wote Street, Church Street, New Street where space is tight.
| Job | Typical range | Notes |
|---|---|---|
| Repointing — estate stack | £250–£500 | Flexible cement mortar, post-war brick |
| Repointing — period stack | £400–£800 | Lime putty mortar, Old Basing and Whitchurch |
| Flaunching renewal | £150–£300 | Shares scaffold with repointing |
| Pot replacement | £80–£200 each | Including re-flaunching |
| Flashing renewal | £320–£700 | Code 4 lead, stepped and chased |
| Stack capping (disused) | £500–£1,000 | Reduce, ventilated cap, re-tile junction |
Worked example: Repoint plus new flaunching on a 1970s stack on Kenilworth Road, Winklebury: £560 including shared scaffold across both elements, two days on site.
A 10 to 20% deposit covering scaffold hire, balance on completion. No payment before the scaffold is standing. All prices include VAT.
Covering RG21, RG22, RG23, RG24 and surrounding postcodes.
Repointing and flashing work carries our 10-year workmanship guarantee. Correctly specified lead should outlast that several times over.
If a fault appears in covered work, we come back and put it right. No quibbling, no re-charge.
Scaffold for the duration and some mortar debris. We sheet the roof below the stack and clear everything before the scaffold strikes. You do not need to stay home for external work - we just need power and access agreed in advance.
Cement mortar work runs most of the year. Lime work is weather-dependent and we will tell you honestly if a job needs to wait for the right conditions. Basingstoke sits on chalk downland at around 80 metres, so drying is quick after rain but frost nights run longer than the Hampshire coast.
"Chimney stack on our semi in Winklebury was crumbling badly — mortar falling out in chunks. Full repoint with new flaunching. Looks solid now and the quote was fair."
"Lead flashing replacement on the chimney of our cottage in Old Basing. Previous bodger had used sealant. These lads stripped it all out and dressed proper code 4 lead. Watertight at last."
"Had the chimney capped and the stack repointed on our place in Brighton Hill. Don't use the fire anymore and rainwater was getting in. They vented the cap properly to avoid condensation. Thoughtful work."
Standard chimney repointing on a Basingstoke estate property typically costs £250–£500 including scaffold access. More complex work on period properties with decorative brickwork or lime mortar requirements can be £500–£800+. We provide free inspections and written quotes.
The most common causes in Basingstoke are failed lead flashings where the chimney meets the roof slope, cracked mortar joints allowing rain penetration, and deteriorated flaunching around chimney pots. We inspect all potential failure points and fix the actual cause, not just the visible symptom.
The chimney stack still needs to be weathertight even if unused — water ingress through a neglected chimney causes damp in bedrooms and loft spaces. We can cap unused pots to prevent rain entry while maintaining ventilation to avoid condensation.
Yes. We carry out heritage chimney repairs on listed and conservation area properties using lime mortar, matching brickwork, and traditional lead techniques. Properties around Old Basing and the Top of Town often require this approach.
Damp on a chimney breast wall, particularly in an upstairs room or loft, usually indicates water entering through failed pointing, flashing or flaunching. We inspect all three and identify which is responsible rather than guessing.
Yes. We reduce the stack to just below roof level, fit a ventilated capping slab, and re-tile the area. This removes all future chimney maintenance while retaining the loft ventilation the flue provided.
No call-out fees. No obligation. Just an honest quote from a local Basingstoke roofer who'll turn up when they say they will.
0125 624 2410Last updated: August 2026