No more repainting
uPVC boards do not need painting every few years, which is the maintenance job most people stop doing on a two-storey London house long before the timber fails.
Roof Care / Fascias & Soffits
Fascias and Soffits in London
Repair and replacement of the roofline that supports your guttering and protects your roof from moisture.
Get a roofline surveyThe timber holding your gutters up
This page is for anyone in South and West London with peeling, soft or rotten boards along the edge of the roof, or with gutters that have started to sag away from the wall. K & M Roofing Solutions repairs and replaces fascias, soffits and bargeboards on Victorian and Edwardian terraces, semis and commercial buildings.
Most of the housing stock we work on still has its original softwood roofline, and it fails in a predictable order. The paint film cracks, water gets behind it, the board takes up moisture and cannot dry, and the timber goes soft from the back where nobody sees it. Because that board carries the gutter, the first visible symptom is usually the gutter dropping or leaking rather than the board itself. By then the rafter ends behind it are often wet too.
The other half of the job is ventilation. A soffit is not just trim: it is where air enters the roof space. When original soffits are boarded over solid, or replaced badly with no vents, the loft stops breathing and condensation forms on the underside of the roof, which rots the timbers from inside and looks exactly like a leak. Replacing a roofline is the moment to put that right.
Benefits
What replacing a roofline gives you
Loft ventilation restored
New soffits are vented to current practice, so the roof space breathes again and stops forming the condensation that rots rafters from inside.
Cheaper done with the gutters
The guttering has to come off to replace the fascia behind it, so doing both in one visit costs far less than paying twice for the same access.
Rafter ends protected
We cut back and treat any wet rafter ends before the new board goes on, which stops the rot spreading into the roof structure itself.
What we offer
Roofline work we take on
Fascia replacement
Rotten softwood fascia removed, rafter ends inspected, cut back and treated where they are wet, and new uPVC fitted with the gutter re-hung to the correct fall. This is the board doing the structural work, so it is the one that matters most.
Soffit replacement and ventilation
New soffits fitted with continuous or circular vents that meet current ventilation practice, restoring airflow into the roof space. Where a previous replacement boarded the eaves over solid, this is usually the fix for unexplained loft condensation.
Bargeboards and verges
The sloping boards at the gable end renewed and the verge detail sealed, which on an exposed London gable is where wind-driven rain gets in behind the roofline.
Capping over sound timber
Where the existing boards are genuinely sound, uPVC capping over the top is a cheaper option. We will only recommend it if the timber underneath is dry, because capping over rot simply hides it.
Roofline with guttering
Full roofline and rainwater replacement in one visit, sized and set to a proper fall, which is the sensible way to do it since the gutter has to come off anyway.
See our guttering servicesScope
Signs your fascias or soffits need replacing
- Visible rot or soft patches in the timber boards
- Paint flaking or blistering along the board face
- Gutters sagging or pulling away from the wall
- Birds, squirrels or wasps nesting behind the boards
- Condensation, damp or mould in the loft space
- Green algae or black mould on the underside of the eaves
- Daylight visible at the eaves from inside the loft
- Heavy staining on the wall below the roofline
How it works
How our roofline service works
1
Free survey
We check the boards, probe for soft timber, look at the rafter ends where we can and inspect the loft for the condensation that points to blocked ventilation. Under an hour on a typical house.
2
Report and itemised price
You get photographs and an itemised price separating fascia, soffit, bargeboard, guttering and access, so you can see what each part costs and stage it if you want to.
3
Access
Scaffold or tower goes up, with a pavement licence arranged where the property fronts straight onto the footway. Usually the same day the work starts on a domestic property.
4
Strip out and inspection
Gutters and old boards come off and the rafter ends are exposed and checked. This is the point where we find out whether the rot has reached the roof structure, and we tell you before we go further.
5
Timber repair and new boards
Wet rafter ends cut back and treated, new fascia, soffit and bargeboards fitted with proper ventilation, and the guttering re-hung to the correct fall. A standard two-storey house takes two to three days.
6
Final check and guarantee
We flush the re-hung guttering, check the ventilation path into the loft is clear, clear all waste and issue the 10-year workmanship guarantee in writing.
Why choose us
Why customers choose K & M Roofing
01
Certified HYDRONYLON applicators, a system most London roofers cannot offer.
02
One team for the whole job, from survey to sign-off.
03
Rated 5.0 by 60 customers on Google.
04
Roofers rather than a replacement-window firm selling roofline, so rot reaching the rafters gets dealt with properly rather than covered over.
05
Transparent pricing with no hidden costs, and a 10-year workmanship guarantee.
Common questions
Frequently asked questions
The fascia is the vertical board running along the lower edge of the roof, fixed to the ends of the rafters, and it carries your guttering. The soffit is the horizontal board tucked underneath it, closing the gap between the wall and the roof edge. Together they are called the roofline. The bargeboard is the equivalent on a sloping gable end. The fascia does the structural work and the soffit does the ventilation.
Press one. Sound timber is hard; if a screwdriver or your thumb goes in, the board has gone. From the ground, look for flaking paint, dark staining, gutters sagging away from the wall and any gap where birds are getting in. From inside the loft, condensation, mould on the rafters or daylight at the eaves all point at the roofline. Rot spreads along a board, so one soft patch usually means the run is finished.
As indicative UK market rates for 2026, uPVC fascias and soffits run roughly £115 to £185 per linear metre installed, with the wider market spanning £100 to £300, so a full replacement on a semi typically lands at £1,500 to £3,500. Timber is £100 to £200 per metre but needs repainting every three to five years, and difficult access or a timber specification can push the total above £4,000. Scaffolding is the item people underestimate: it can account for as much as a third of the bill. That is why doing the roofline and the guttering in one visit is worth £400 to £800, because you pay for one scaffold rather than two, and the combined job runs around £60 to £120 per linear metre or £1,200 to £2,400 on a semi. Those are market figures rather than our quote, and a binding price from K & M Roofing Solutions follows a free survey.
A standard two-storey London house takes two to three days including new guttering, plus a day either side for scaffold up and down where it is needed. A single elevation or a bungalow can often be done in a day. The unknown is what the rafter ends look like once the old boards come off, so we allow for treating them and tell you straight away if there is more timber repair than the quote assumed.
Yes, and this is the part most often got wrong. Air has to enter the roof space at the eaves and leave at the ridge, otherwise moisture from the house condenses on the cold underside of the roof and rots the timbers. Solid soffits with no vents, or old ones boarded over during a previous replacement, are a common cause of loft damp that gets misdiagnosed as a roof leak. Every soffit we fit is vented, and we check the insulation is not blocking the airflow path at the same time.
uPVC for almost every case, because it does not need painting and does not rot, and a two-storey roofline is exactly the maintenance job people stop doing. Timber is the right answer where a listed building or a conservation area requires it, and there are good uPVC profiles that reproduce a traditional timber appearance closely enough to satisfy most conservation officers. We will tell you at survey which applies to your property.
Almost always, yes. The gutter has to come off to get at the fascia behind it, so the labour and the access are already paid for. Re-hanging old brittle uPVC guttering onto a brand new fascia means paying for that access twice when it fails a couple of years later. The exception is genuinely good cast iron on a period property, which is worth taking down, refurbishing and re-hanging.
All roofline work carries a 10-year workmanship guarantee, issued in writing when we sign the job off. That covers the fitting, the ventilation detail and the re-hung guttering, not just the boards. Manufacturer guarantees on the uPVC itself are separate and we pass on that documentation with the handover.
Free on-site estimate
Let us talk about your roof
Tell us what is going on and we will arrange a free survey. No pressure, no hard sell, just honest advice and a clear price.
Kamil07593 196505
Mateusz07544 188268