Local knowledgePointing & Repointing in Northampton: What We See Locally
Victorian terraces off the Wellingborough Road and in Semilong mean rear-access scaffold and permit-controlled pavement space, while the post-war estates have easier side access. Nene Valley humidity keeps north-facing roofs damp and slow to dry through autumn.
We cover Semilong, St James, Wellingborough Road and the wider NN1, NN2, NN3, NN4, NN5 area, and price every pointing & repointing job against the specific stock and access on your street — not a one-size guess.
The pointing & repointing work we do around Northampton is shaped by the local stock: The way we approach it depends on your property and street. Victorian terraces off the Wellingborough Road and in Semilong mean rear-access scaffold and permit-controlled pavement space, while the post-war estates have easier side access. That local reality — the stock era, the access, and nene valley humidity keeps north-facing roofs damp and slow to dry through autumn — is exactly what we price against, rather than a one-size national rate.
Done properly, locally. We point in the correct mortar for your stock so the joints shed water and do not trap damp. Workmanship is guaranteed for 10 years; on period stock we use lime mortar to avoid trapping damp in the masonry. Because we are based here and rely on our Northampton reputation, we turn up when we say, keep the site tidy — focused work with some mortar debris; we sheet below and clear as we finish — and stand behind every job in writing. We cover Semilong, St James, Wellingborough Road and the surrounding roads, and we are happy for you to get other quotes: a proper roofer expects it.
Chimney Repointing Northampton · Northampton
Chimney Repointing, Flaunching and Capping
Chimney repointing is a specialist job distinct from general chimney repair. The stack is the most weather-exposed masonry on the whole building - it takes wind, rain, frost and UV on every face - so its mortar fails faster than anywhere else. Repointing addresses the eroded joints, but a proper chimney job assesses the whole stack: the pointing, the flaunching, the pots and the flashings.
Repointing the Stack
Over 30–50 years the mortar joints erode and recess, letting water into the stack. Repointing rakes out the failed joints and refills them with the correct mortar. On Victorian and 1930s stacks this must be lime mortar - hard cement on period brickwork causes the brick face to spall as thermal movement works against the rigid joint. £300–£700 per stack.
Flaunching
The flaunching is the mortar fillet on top of the stack that beds the pots and sheds water off the crown. When it cracks - and it always eventually cracks - water gets into the stack from above. Renewing the flaunching is £150–£350 and often done alongside repointing since the scaffold is already up.
Cowls and Capping
Cowls (from £80 fitted) keep rain, birds and downdraught out of live flues and prevent damp in disused ones. Where a chimney is no longer used, capping the pots while retaining ventilation (£200–£500) stops water ingress without trapping moisture in the flue - a capped-but-unventilated flue causes internal damp, so ventilation matters.
Why Scaffold, Not Ladders
We survey and work on chimneys from scaffold, not from a ladder hooked over the ridge. The most significant stack failures are often on the faces you cannot see from the ground, and safe, thorough work at stack height needs a proper platform.
Local Knowledge
Northampton Chimney Stacks by Area
Chimney condition across Northampton follows the town's building eras closely, and the right repointing approach - and mortar - depends entirely on which era of stack you have.
The Victorian and Edwardian terraces of Semilong, St James and Far Cotton carry the oldest and most exposed stacks in the town, many of them tall shared stacks serving multiple flues on the terrace. Their original lime mortar is now well over 100 years old and has weathered back from the joint face, and many have had hard cement patched over the lime at some point - which spalls the soft Victorian brick. These stacks need raking out and repointing in lime mortar, and are the most common serious chimney job we see in Northampton. Their height and the tight terraced streets mean scaffold access is a genuine cost factor.
On the 1930s semis of Kingsthorpe and Abington, the stacks are typically single or double-flue in harder brick, and the common job is flaunching renewal where the crown mortar has cracked, plus repointing of the upper courses that take the most weather. The prevailing south-westerly weather face on these stacks erodes faster than the sheltered side, so we often find one face far worse than the other.
On the post-war estates - Blackthorn, Rectory Farm, Thorplands, Duston - many properties have smaller stacks or none, but where they exist the mortar is 1960s–80s sand-and-cement now reaching the end of its life. On these modern stacks a correctly gauged sand-and-cement repoint is appropriate. Across all areas, a large share of Northampton chimneys are now disused since central heating replaced open fires - and these are where capping-with-ventilation and cowl fitting prevent the damp that a neglected disused stack causes.
The Building Regulations Approved Document J requires chimneys and flues to be structurally sound and correctly weatherproofed; failed flaunching and pointing are among the most common causes of chimney-related damp in older housing.
Source: Building Regulations Approved Document J
Pricing
Chimney Repointing Prices in Northampton (2026)
Indicative 2026 guide prices for the Northampton area. Every chimney job is surveyed from scaffold and confirmed in a free written quote.
| Work | Typical Northampton Price |
|---|
| Stack repointing (standard) | £300–£700 |
| Flaunching renewal | £150–£350 |
| Cowl supply and fit | From £80 |
| Chimney capping (with ventilation) | £200–£500 |
| Repoint + flaunching combined | £450–£900 |
| Tall terrace stack (scaffold access) | £600–£1,200 |
| Lead flashing renewal at stack | £200–£600 |
Prices are indicative 2026 guide figures for the Northampton area and confirmed in a free written quote after survey. Re-roofing work usually qualifies for the reduced 5% VAT rate.
AccessGetting Safely onto Northampton Roofs
Repointing at height needs scaffold or a tower for safe, accurate work. Scaffold is specified for: ridge, chimney and any repointing above single-storey height - always itemised in your written quote, never a hidden extra, and we arrange it.
Victorian terraces off the Wellingborough Road and in Semilong mean rear-access scaffold and permit-controlled pavement space, while the post-war estates have easier side access. Pavement scaffold and skip permits go through West Northamptonshire Council; allow a few working days on streets like Semilong, St James, Wellingborough Road where space is tight.
