How do I know if my fascia needs replacing?

A fascia is the board you see running along the eaves, screwed or nailed across the rafter feet. The roof covering finishes just above it, the soffit sits under it, and the gutter hangs off its face. Because it carries the gutter, a fascia that weakens affects everything near it, so the first sign is often not in the board at all. It is a gutter that has started to lean, or water that runs down the wall where it used to run down the pipe.

That connection is useful. It means you can inspect a roofline in a few minutes without a ladder, by standing back and looking along it. A roofline should look straight and tight. Anything that does not is worth a closer look. The materials matter too, because timber fails by rot and plastic fails by warping and cracking, and you look for different things on each. Our page on the roofline explained names each part and what it carries.

Wood shows its age more plainly than plastic, which is why timber fascias give the clearest warnings.

• Peeling or blistering paint. Paint that lifts in long strips along the board, rather than in small flecks, usually means water is getting behind it.
• Soft wood. Press a screwdriver or a fingernail into the underside and the lower edge. Sound timber resists. Rotten timber gives way, or comes away in fibres.
• Cracks, particularly at joints and corners where water gets in.
• Dark patches or a musty, damp-wood smell on the underside, often with fungal growth.
• Insect holes or powdery debris below the board.

Staining on the soffit under the board is another warning. Water that has crossed the fascia often leaves a brown tide-line on the soffit, and a soffit with mould on it points to long-term damp; see our page on gutter fall for one reason a gutter holds water against the board in the first place.

Plastic does not rot, but it does age. A plastic fascia can discolour from white to cream or grey, warp where it has been fixed too tightly, crack at corners and joints, and grow brittle. It can also hide a timber board underneath, because a lot of plastic fascia has been fitted over an old wooden one. If plastic is warped, split or lifting at the ends, check what is behind it.

MyBuilder's roofline guide, updated in August 2026, suggests a check every five years and replacement typically every 10 to 20 years, varying with the material and the weather. One plastic retailer suggests uPVC can last between 20 and 40 years, so the figures differ. Neither is a promise. Age is a prompt to look, not proof of failure.

Sagging between fixings, gaps at joints, and boards that are loose enough to move when pushed are all reasons to call someone. If the boards simply look tired but are firm, a clean or a cover might be enough; our guide to fascia cladding over timber sets out where that works and where it doesn't.

Sometimes the board is fine to look at and the gutter tells the story. Check for:

• A run that dips mid-span or drains away from the outlet, which means the fixings have lost their grip.
• Brackets that have pulled out or hang loose, or screws that have come through the face of the board.
• Joints that keep leaking after being resealed.
• Water that overshoots the gutter or runs down behind it.

Fascia boards hold gutter brackets with screws, and if the timber around those screws has softened, nothing stops them pulling out. Re-fixing a gutter to a rotten board is wasted effort. Our pages on the fall a gutter needs and who fits fascias cover how the two are linked and why they are often replaced as one job.

Look into the loft too, near the eaves. Daylight or damp showing along the wall plate, or darker rafter ends, mean water has been getting in past the board and the roof edge needs inspecting properly.

If you see one small fault, take a photograph, press the wood in a couple of places and watch it after the next heavy rain. If you see several signs, or any softness, ask someone to survey it. Prodding a first-floor board with a chisel from a ladder is a good way to get hurt, so leave upper storeys to someone with a tower.

On cost, MyBuilder's guide gives fascia at £80 to £150 per metre, soffit at £100 to £180 per metre and removal and disposal at £150 to £300, with scaffold at roughly £20 to £40 per square metre. Those are typical UK ranges, not prices for your house. The cost on any real house depends on its height, the length of the roofline, the material and on whatever is found beneath the old boards.

Our survey produces photographs of your fascias, soffits and rafter ends, followed by a written quote. We match the work to the fault, so a localised repair is offered wherever it genuinely solves the problem. The work carries a 10-year workmanship guarantee in writing. Send photographs or book a survey through the gutters, soffits and fascias page, by phone on 01793 626096 or on WhatsApp.