Roof pointing specialists in Bath. Ridge repointing, verge repointing and mortar repairs on Victorian, Georgian and post-war roofs. Lime mortar for all period properties. Free no-obligation quotes.
Chimney trouble shows as damp on the breast inside, crumbling mortar, or a leak where the stack meets the roof. On Bath's soft stone stacks, eroded lime pointing and failed lead are the usual causes.
Damp staining on the chimney breast inside the house
Crumbling or missing mortar in the stack
A leak in the ceiling near the chimney
Loose or leaning pots
Vegetation growing from the stonework
When it is not the answer: If only the flaunching or a length of flashing has failed, you don't need a full rebuild — a targeted lime repair is far cheaper and keeps the original stack. Read the full guide.
Chimney lead weatherproofing: flashing, apron and back gutter
Roof Pointing in Bath
Roof Pointing Bath
Roof pointing — the mortar joints at ridge lines, verge edges, and tile abutments — has a finite service life that varies by mortar type, exposure, and property era. On Bath's Victorian and Edwardian stock, original lime mortar pointing can last 80 to 120 years. Cement mortar re-pointing done at any stage in the last 50 years typically needs attention after 20 to 30 years. Failed pointing allows wind-driven rain under ridge and verge tiles, and is a major source of hidden water ingress that only becomes apparent when internal staining develops.
Ridge Repointing in Bath
Ridge tile repointing on Bath's Victorian Welsh slate roofs is carried out in NHL lime mortar matched to the original specification. We never use cement mortar on Bath stone or traditional masonry roofs. Cement repointing causes cracking and delamination of the tile bedding through differential thermal movement, and creates a harder zone that concentrates stress at tile edges. On post-war concrete interlocking tile roofs we use flexible cement mortar appropriate to the material.
Verge and Abutment Repointing
Verge repointing on both Welsh slate and concrete tile roofs is a common maintenance job across Bath. Failed verge mortar allows water to run behind the end tile or slate, tracking along the fascia into the rafter end. Early intervention costs 15 to 30 pounds per metre. Delayed intervention can result in rafter end replacement at 150 to 300 pounds per rafter.
Roof Pointing Costs in Bath
Ridge repointing (per metre): £20–£40 Full ridge run (3-bed semi): £200–£450 Verge repointing (per metre): £15–£30 Abutment repointing (per metre): £25–£45 Free quotes for all pointing work.
For roof pointing in Bath call 0122 528 7924. Free assessment, no call-out fee.
Mortar Selection
Choosing the Right Mortar for Bath Roof Pointing
Lime Mortar — When and Why
Lime mortar is required for roof pointing on all Bath stone, Corsham stone, and traditional brick properties in Bath's conservation areas. The key property of lime mortar that makes it correct for these applications is its relative softness compared with the surrounding masonry. A lime mortar joint can absorb differential thermal movement without cracking — when stress is applied, the joint deforms slightly rather than transmitting the stress into the adjacent stone or brick face. Cement mortar, being harder than the surrounding material, transmits stress into the masonry and causes spalling.
Flexible Cement for Post-War Housing
For ridge and verge pointing on concrete interlocking tile roofs across Twerton, Foxhill, Keynsham, and similar post-war Bath housing, flexible cement mortar is the correct specification. This is a polymer-modified cement that retains some elasticity after curing, allowing it to accommodate the thermal movement of the ridge tile and tile surface without cracking as quickly as rigid cement. We use flexible mortar on all post-war Bath roofs as standard — not the rigid bagged sand and cement that some roofers use to reduce material cost.
How to Identify Failing Pointing from Ground Level
Ground-level binocular inspection can identify most significant roof pointing failures on Bath properties. Look for: white mortar dust or lime efflorescence at the base of ridge tiles, indicating mortar breakdown; visible gaps between ridge tiles and the bedding mortar; horizontal cracking along verge pointing; and staining on the tile surface below verge lines where water is tracking under deteriorated pointing. Any of these warrant a closer inspection. The cost of re-pointing caught early is a fraction of the cost of emergency ridge tile replacement after a winter storm.
Customer Reviews
Recent Jobs
★★★★★
“Ridge repointing on our Victorian semi in Oldfield Park. They used the correct lime mortar, matched the colour, and re-pointed the verge on both elevations at the same time. Very thorough.”
Catherine W. · Oldfield Park, Bath
★★★★★
“Verge repointing on our 1960s semi in Twerton — mortar had completely failed on the rear elevation. Re-pointed in flexible mortar, no more wind-driven rain getting under the tiles.”
Barry F. · Twerton, Bath
★★★★★
“Roof pointing on our listed Georgian property in Bathwick. They used lime mortar throughout as required, matched the original pointing profile, and documented everything for our conservation file.”
Victoria R. · Bathwick, Bath
The process
How a Bath Chimney Repairs Job Runs
1. Four-face survey
We inspect every face of the stack — the weather-facing sides erode faster than the one you see — and photograph the faults.
2. Written quote
We quote the repointing, flashing, flaunching or rebuild needed, using lime mortar for Bath's soft stone, at a fixed price.
3. Scheduling & access
We book the work and arrange the tower or scaffold access a stack needs for safe standing time.
4. The work
We rake out failed mortar, repoint in matched NHL lime, renew lead flashing and flaunching, and re-bed pots as needed.
5. Cleanup & sign-off
We clear debris, leave the stack weathertight, and hand over your guarantee.
Timescales
Job Durations at a Glance
Job
Typical duration
Re-flaunching / re-bed pots
Half a day
Lead flashing renewal
Half to full day
Stack repointing (lime)
1–2 days
Partial stack rebuild
2–3 days
Full stack rebuild
3–5 days
Lime mortar needs frost-free conditions to cure properly, so we schedule stack work around cold snaps in winter.
Access
Getting Safely onto Bath Roofs
Chimney work almost always needs a tower or scaffold for safe standing time at the ridge — itemised in your quote, never a hidden extra. Scaffold is specified for: nearly all stack work — safe access to the ridge is essential and always specified - always itemised in your written quote, never a hidden extra, and we arrange it.
Bath's Georgian and Victorian terraces mean tight pavements, controlled parking, and rear-access scaffold on many streets. Pavement scaffold and skip permits go through Bath & North East Somerset Council; allow a few working days on streets like Milsom Street, Broad Street, Margaret's Buildings where space is tight.
Pricing
What Chimney Repairs Costs in Bath
Job
Typical range
Notes
Re-flaunching / re-bed pots
£150–£350
Per stack
Lead flashing renewal
£250–£600
Stack-to-roof junction
Stack repointing (lime)
£350–£850
Four faces, NHL lime
Partial stack rebuild
£800–£2,000
From roofline up
Full stack rebuild
£1,800–£4,000+
Incl. scaffold
What moves the price
Soft Bath stone requiring NHL lime mortar, never cement
How many faces of the stack have failed (weather sides worst)
Access height and scaffold vs tower for safe standing time
Whether pots, flaunching and flashing all need renewal
Worked example: Repointing all four faces of a soft-stone stack in lime plus renewing the lead flashing on a Widcombe hillside terrace: around £900 including tower access.
No deposit on smaller chimney repairs. Staged payment on rebuilds, balance on completion — nothing before materials are on site. VAT included.
Covering BA1, BA2 and surrounding postcodes.
Guarantee
Your Guarantee, Explained
Chimney workmanship is guaranteed for 10 years, extending to rebuilds and full repointing; because we use correct NHL lime, the work lasts rather than damaging the stone as cement does.
Covered: workmanship for 10 years, in writing, transferable if you sell.
On top: manufacturer warranties on materials (terms vary by product).
Not covered: storm or impact damage - that is an insurance matter, and we will document it for your claim.
If a fault appears in covered work, we come back and put it right. No quibbling, no re-charge.
Good to know
What It Is Like While We Work
Stack work means access equipment up for a few days and some mess at the base — we sheet and protect below, and clear everything on completion. You do not need to stay home for external work - we just need power and access agreed in advance.
Lime pointing waits for frost-free weather to cure; we won't point a stack into a cold snap and risk the mortar failing. Bath's valley setting holds humidity, so north-facing slopes dry slowly and moss builds up through autumn.
FAQ
Frequently Asked Questions
Ridge repointing costs 20 to 40 pounds per metre. A full 3-bed semi ridge run costs 200 to 450 pounds. Verge repointing costs 15 to 30 pounds per metre. Free quotes for all pointing work.
NHL lime mortar is used on all Bath stone, limestone and traditional brick properties. Flexible cement mortar is used on concrete interlocking tile properties. Rigid cement mortar is never used on traditional masonry.
Lime mortar pointing on Victorian properties lasts 40 to 80 years when correctly applied. Flexible cement mortar on post-war roofs lasts 20 to 30 years. Rigid cement mortar typically fails within 10 to 20 years on traditional masonry.
In many cases yes — ridge and verge repointing on accessible single-storey sections can be done from a ladder. Two-storey and above requires scaffold for safe working. We advise on access requirements at the survey stage.
Yes. All Bath conservation area and listed building pointing work uses lime mortar as required. We advise on consent requirements where relevant.
No. All assessments are free. No call-out fee on any job.
Yes. Failed ridge and verge pointing is a major source of hidden water ingress on Bath properties. Water tracks under displaced mortar and into the roof void, often causing internal staining on ceilings before the external source is identified.
Free Bath Roofing Quote
No call-out fees. No obligation. Free assessment and honest quote before any work starts.
