Rotten roofline boards and leaking gutters cause more hidden damage than most homeowners in Sawston realise until it is too late.
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The fascia is the flat board that runs along the edge of your roof, sitting directly beneath the lowest course of tiles. The soffit is the horizontal board that closes off the gap between the fascia and the wall. Between them they protect the rafter feet, keep birds and insects out of the roof void, and carry the guttering that channels rainwater away from your foundations.
When these boards fail, water gets into the roof timbers before it ever shows up as a damp patch on your ceiling. By the time you notice a problem indoors, the damage is often already significant. Replacing roofline boards is straightforward when caught early; repairing rotten rafter feet is a different, more expensive job.
Guttering does a simple job: it collects water from the roof and moves it to a downpipe. Blocked, cracked or poorly aligned gutters let water overflow against the wall, saturating pointing, brickwork and window frames. A leaking gutter joint is one of the most common causes of persistent damp on external walls.
Roofline work is not all the same. Below are the distinct jobs a homeowner might need, and what each one involves.
We strip the old boards back to bare timber or, where necessary, back to the rafter feet themselves. Any rot in the rafter feet is cut out and made good before new boards go on. Skipping this step is the single biggest quality difference between a proper job and one that fails within a few years. New uPVC or timber boards are then fixed, new guttering brackets set at the correct fall, and new guttering run and jointed.
If the existing timber fascias and soffits are structurally sound but weathered or flaking, it is sometimes possible to cap over them with uPVC rather than stripping everything back. This is faster and marginally cheaper, but it is only appropriate when the timber underneath is genuinely dry and firm. Capping over damp or soft timber simply seals moisture in and accelerates the rot. Any tradesperson recommending capping should inspect the existing boards first and give you a clear reason why they are suitable.
Not every gutter needs replacing. A gutter that overflows at one point often just needs a bracket refixing to restore the fall, or a single cracked section swapped out. Leaking joints in uPVC guttering are usually fixed with new union clips or a bead of gutter sealant applied from inside the channel. Where the gutter is old but the run is sound, repairs can add years of serviceable life at a fraction of replacement cost.
Cast iron guttering on older properties can last a very long time if it is kept painted and the joints are re-leaded periodically, but when it fails it tends to go all at once. uPVC replacement guttering is the standard choice today. Ogee-profile uPVC is available where appearance matters.
Rafter feet are the ends of the roof timbers that sit behind the fascia board. When a fascia fails and lets water in for long enough, the rafter feet begin to rot. This is not automatically a structural emergency, but it does need addressing before new boards are fitted. Rotten sections are cut back to sound wood and a new length of timber is scarfed in and bolted. If multiple rafter feet are affected, this adds time and cost to what would otherwise be a simple board replacement.
This is the question most homeowners ask before work starts, and it deserves a straight answer rather than a sales pitch. The two realistic options for most houses are uPVC and timber. There is no single right answer; the best choice depends on your property, your budget and how much maintenance you are prepared to do.
uPVC is the dominant choice for roofline work in the UK today, and for good reason. It does not rot, it does not need painting, and it is dimensionally stable in most conditions. A well-fitted uPVC roofline should give many years of service without any maintenance beyond an occasional wipe-down.
Pros:
Cons:
For most standard semi-detached and detached houses, white or cream uPVC is the practical and cost-effective choice. Ogee-profile uPVC or fascia boards with a deeper profile are worth considering if your existing timber boards have a more decorative shape.
Timber fell out of favour when uPVC became widely available, but it is still a legitimate choice, particularly on older houses where it matches existing detailing or where the local character matters to you.
Pros:
Cons:
Treated softwood such as redwood or whitewood is the standard specification. Hardwood fascias are available but add considerable cost and are rarely necessary for typical residential work. If you are going with timber, make sure the boards are back-primed before fitting: painting the face only and leaving bare end grain is one of the most common reasons timber boards fail prematurely.
Some suppliers offer composite or cellular PVC boards that sit between standard uPVC and timber in terms of machinability. These can be shaped more easily than hollow-section uPVC and hold paint better than standard foamed PVC. They cost more but are worth considering if you want a painted finish with lower maintenance than solid timber. Ask specifically about the product specification rather than accepting a generic description.
For guttering, the choice of material matters as much as the choice of board material.
Gutter sizing matters too. A standard 112mm half-round gutter is adequate for most domestic pitches and roof areas, but a large rear extension or a steep-pitched roof that sheds water quickly may need 150mm guttering to handle heavy rainfall without overflowing.
Prices vary with property size, access, the condition of existing timbers and the material specified. The figures below are honest typical UK ranges for residential work; every job should be priced individually once the boards have been inspected.
Scaffolding or a tower is almost always needed for safe roofline work. If a quote is given without any mention of access equipment, ask specifically how the work will be carried out at height. Working off ladders alone is not safe for a full roofline job and will compromise the quality of the finished work.
In most parts of the country, gutters should be cleared at least once a year, ideally in late autumn after the leaves have fallen. Properties near trees, or where moss is coming off the roof in quantity, may need clearing twice a year. A blocked gutter overflows against the wall and back against the fascia, and that standing water is one of the fastest ways to rot out a timber roofline.
A gutter that is regularly overflowing at the same point even after clearing may have dropped on its brackets and lost its fall toward the downpipe. This is a simple fix when caught early and an ongoing nuisance if left.
The most common causes of leaking gutters are failed joint seals, cracked sections, and brackets that have pulled away from the fascia. uPVC gutter joints rely on rubber seals inside the union clips; these harden and shrink with age and eventually let water through. A leaking joint low down on a downpipe is often missed until it has been quietly soaking the wall for months. Cracked sections are usually caused by impact or by guttering that was already sagging and filled with water that then froze.
For most houses, uPVC is the lower-maintenance and more cost-effective choice over the long term. Timber is worth considering on older properties where the character of the building matters, on listed buildings where uPVC may not be appropriate, or where you are prepared to maintain a painted finish. The right answer depends on your property and priorities, not on what is easiest to install.
We carry out fascia, soffit and gutter work in Sawston and the surrounding area. If you are nearby and unsure whether we cover your area, call and ask.
A few questions worth putting to any roofer before they start:
Getting clear answers before work starts avoids surprises once the scaffold is up and the old boards are already off. Call us to arrange a survey of your roofline in Sawston and we will give you a straight assessment of what needs doing and what your options are.
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Call any time. Calls are answered day and night and passed straight to our roofers.
