Fascias and soffits are the boards along the roof edge: the fascia is the front board that carries the gutter, and the soffit is the underside, a board that closes off the space between wall and roof edge. Both take the weather directly, and when the old ones rot, crack or flake, the choice is between covering them with new uPVC, called capping, and taking them off and replacing them.
This post gives the published figure for capping, explains how capping differs from replacement, sets out what is known about how long uPVC lasts and what moves the price of a roofline job. It is the cost post in our gutters cluster. Whether you need consent is covered in planning permission to replace gutters, and whether you need scaffold is in scaffolding to replace guttering.
Each figure is quoted from an outside guide, with its date, as a national typical range, and none is our price. We write ours after a survey of your own roofline. For our approach to the work, see the gutters, soffits and fascias page.
The published figures
Published guides are thin on fascia and soffit costs, so the figures below are few and each is specific to a job.
Capping
For capping, MyJobQuote's figure is around £800 on a three-bedroom semi (updated 17 September 2026).
Gutters, for context
Fascias and gutters are often done together, so the gutter figures help. MyJobQuote gives gutter replacement at around £1,000 to £1,600 (updated 20 October 2026). Which? (November 2025, ex VAT) puts clearing out all the gutters, rear and front, at £75 to £350. MyJobQuote gives concrete gutter replacement at an average of £2,400, though that page dates from 2 January 2026 and is older than the others.
What the figures do not give
They do not give a price for full replacement of fascias and soffits, or for a house of another size. A detached house, a terrace or a bungalow will differ from a three-bed semi, and so will a house with a rear extension, a dormer or a porch roof.
Reading them
Treat £800 as a pointer for one type of house and one type of job, not as a price for yours, and expect a terrace or a bungalow to differ. The length of the roofline, the number of storeys and the condition of what is underneath all move the figure. A survey measures the lengths and checks the boards, and the written price follows.
For the gutter side, our post on the average price of new gutters goes into the figures in more detail.
Capping against full replacement
The two routes look similar from the pavement and are quite different in what they do.
Capping
Capping fits new uPVC covers on top of the boards you have, which stay where they are. It is quicker than replacement, produces less waste and keeps the original structure undisturbed. It gives a clean, even finish and a surface that needs little attention.
Replacement
Replacement removes the old boards and fits new ones. It lets the timber behind be inspected and repaired, and it gives the chance to fit new brackets and gutters in the same visit.
When capping is right
Capping suits boards that are structurally sound, with a surface that is flaking, stained or cracked. If the timber is firm, the fixings are good and the problem is the finish, capping does the job at lower cost.
Time and scaffold
Capping can usually be finished in less time because nothing is stripped back, so the access may stay up for a shorter period. The saving is real only if the boards underneath are sound. A cheaper fix that fails and has to be redone, with scaffold hired twice, is not cheap.
When it is not
If the boards are rotten, soft or damaged, capping covers the problem and does not cure it. Rot continues behind the cover, and the first sign may be a sagging gutter. In that case replacement is the sound choice.
Asbestos
For a house from before 2000, check what the soffits are made of before choosing either route. Our guide to fascia capping versus replacement explains the comparison, and our post on asbestos in soffits for Farnborough homeowners explains the question.
How long uPVC lasts
People ask how long new fascias will last before paying for them, which is sensible, since it sets the price against the years.
The published range
Plastic Centre, a retailer of uPVC boards, gives a life of between 20 and 40 years for uPVC fascia boards. That is a seller of the product describing it, which makes it an interested source, and the range is wide. It is a typical figure, not a promise.
What moves a board within that range
- The quality of the board and its fixings.
- How well it was installed and joined.
- Exposure to sun, which can fade and weaken plastic over time.
- The state of what is behind it, since a rotten timber behind a cover can distort the board.
- Whether the gutters work, because an overflowing gutter soaks the boards below.
What this means for value
A longer life reduces the cost per year, but the figure is wide enough that no single number should drive the decision. A sensible choice weighs the price, the condition of the existing timber and how long you expect to own the house.
Exposure
An elevation that takes full sun or driving rain ages faster than a sheltered one, so two sides of the same house can differ. Note any board that has already bowed, faded or split, and mention it at the survey.
Maintenance
uPVC needs little attention compared with painted timber, which needs repainting, but a wash with warm soapy water and a look at joints, vents and gutters each year catches problems early. Cleaning a roof is a separate job, priced after a survey.
What moves the price of a roofline job
Several things sit behind the gap between one house and the next. None is a surprise once you picture the job.
Length and height
The total run of fascia and soffit, and how high it is, set the area of board and the time. A long, two-storey elevation costs more than a short, single-storey one.
Access
Scaffold is a real cost on a two-storey roofline, however it is handled. Where it stands on the public highway it needs a licence, so timing matters too.
Condition
If boards are rotten, the rafter ends behind may need repair, which adds to the work, and the extent of that repair is only known once the old boards are off. A good firm photographs what it finds and agrees any extra work with you before going ahead. A survey checks this by looking from within the roof space as well as from the garden.
Soffit ventilation
Soffits often provide the air path into the loft, and a replacement should keep it open. Our guide to soffit ventilation explains what that involves.
Gutters and downpipes
If the gutters are replaced at the same time, the job is larger, but the access is shared, which often saves money overall.
Features
Bay windows, porches, dormers, extensions and corners all add work, because each needs special pieces and careful joints.
Asbestos
If asbestos insulating board is found in the soffits, removal rules apply and the cost changes. HSE names external soffits among the places it turns up, and advises presuming asbestos wherever the building dates from before 2000.
Getting a clear price for roofline work
A good price is a clear one. A few habits help you judge what you are shown.
Ask for the scope in writing
It should say whether the job is capping or replacement, which elevations are included, whether gutters and downpipes are part of it, and what happens to the old boards.
Check what the total takes in
- Access, whether ladders, tower or scaffold, and any highway licence.
- Removal and disposal of old materials.
- Soffit vents and any ventilation strips.
- VAT at the standard rate of 20%.
Compare like with like
Citizens Advice recommends collecting at least three written quotes. Make sure each describes the same scope, because capping and replacement are different jobs. A total for capping is not a fair comparison with a total for replacement.
Ask about the product
Ask which board is being fitted, in what colour, and how joints, corners and vents will be finished, because the details show in the finished roofline for years.
Ask about the timber
Ask what is proposed if rot is found once the boards are off, and how it will be priced. A good answer is a clear process, with photographs and agreement before extra work.
One price from us
After the survey, ours is one price in writing. Where capping will do, capping is what gets priced, and replacement appears only if the evidence calls for it.
Use the published figures as a sense-check, and ask why if a quote is far from them.
Planning the work and what happens next
A roofline job runs smoothly when the preparation has been done, and the steps are straightforward.
Before the quote
- Check the age of the house and the type of soffit.
- If it dates from before 2000, have the soffits identified.
- Ask the council whether any consent applies, particularly in a conservation area.
- Decide whether gutters should be done at the same time.
What the survey records
The surveyor looks over the fascias, soffits, gutters and downpipes from the garden, and from within the loft where the roof edge can be reached. Photographs record the condition and the measurements record the lengths, so the written price rests on facts.
On the day
Access goes up, old materials come off, any timber repair is made, the new boards are fitted, and the gutters are re-hung or replaced. Waste goes away and the site is left tidy, with a word each day on what comes next.
Afterwards
Walk round the finished roofline with the foreman, look at the joints and corners, and check that the gutters run to the downpipes without standing water. Keep the quote, the photographs and any waste paperwork. If asbestos was found, keep the identification result with your house papers.
With a roofline in mind, start with a survey: it records what is there and leads to a written price for the work the house really needs.
