If you are having fascias, soffits, or guttering replaced in Isleham, here is exactly what the job involves from the first look to clearing up.
Fascia, soffit, and guttering replacement is one of those jobs that looks simple from the ground but involves a number of decisions and checks that separate a long-lasting installation from one that fails within a few years. Knowing what a good job involves helps you ask the right questions and spot whether the work has been done properly.
We cover Isleham and the surrounding villages from our base in Mildenhall. The following is a straightforward account of how we approach this work - and what you should expect any roofer to do on your property.
Before any materials are ordered or scaffolding goes up, the existing fascias, soffits, and guttering need to be properly assessed. This means looking at the full run from ground level first, then getting up close to check the condition of the timber behind any existing uPVC or painted boards.
What matters at this stage is not just whether the visible surface looks worn - it is what is happening behind it. A common problem is uPVC capping fitted over rotten timber years ago, which means the sub-fascia (the structural timber the new board will fix to) may have continued to decay unseen. Any roofer quoting for this work should be clear about whether their price assumes sound sub-fascia timber or includes dealing with rotten rafter feet.
The assessment should also cover the gutter fall - whether the existing gutters drain correctly toward the outlets - and the soffit ventilation, so the replacement soffits can be specified with the right ventilation provision.
Safe access is not optional. For a full fascia, soffit, and guttering replacement on a two-storey house, scaffold is the standard approach - either a full scaffold lift along the affected elevation or independent tower sections for shorter runs. Working off a single ladder while carrying lengths of fascia or gutter is unsafe and makes it impossible to fit the work properly.
Scaffold has a cost, but it also means the job can be done thoroughly without rushing. It allows proper inspection of the rafter feet and any exposed roof edge details that would otherwise be unreachable. If a contractor quotes for this job without mentioning access equipment, ask specifically how they plan to work safely at height.
The old guttering comes off first, starting at the highest point of the run and working toward the outlet. This is also the time to check whether the downpipes are clear and whether the outlets are correctly positioned relative to the drain below.
Removing the existing fascia boards - whether timber or uPVC - reveals the rafter feet and sub-fascia behind. This is the critical check. Any timber that is soft, discoloured, or visibly decayed needs to be cut back to sound wood. Rotten rafter feet can be repaired with splice sections rather than replacing the full rafter, but the extent of the repair needs to be confirmed before new boards go on.
Old soffits should always be fully removed rather than over-clad. Capping over existing material hides any problems and adds unnecessary weight and thickness to the eave detail.
Once the old material is stripped, any exposed timber - including sound timber that shows early surface staining - should be treated with a preservative before the new boards are fitted. This is a step that adds little time but significantly extends the life of the new installation.
If rafter feet are badly decayed, new timber is splice-fixed or bolted alongside the sound section of the existing rafter. This restores the fixing point for the new fascia and the gutter bracket. The repair should be made with preservative-treated timber, not untreated softwood.
New fascia boards - whether uPVC, timber, or aluminium - are fixed directly to the rafter feet or to a sound sub-fascia board. UPVC profiles include a channel at the top to receive the soffit and a groove or bracket system at the front to hold the gutter.
On uPVC installations, expansion gaps must be left at every joint. uPVC expands and contracts significantly with temperature change - boards can move by several millimetres between a cold winter day and a hot summer afternoon. Joints fitted without movement allowance buckle or separate. A correctly fitted uPVC fascia should show small, consistent gaps at every join, filled with a proprietary jointing trim rather than sealed solid.
Timber fascias are fixed with ring-shank nails or screws, primed on all faces including the back and both cut ends before going up. Any cut made on site exposes bare timber and should be treated with end-grain sealer before fixing.
Soffits slot into the channel at the bottom of the fascia and are supported on a bearer fixed to the wall. On uPVC, they click or slide into place. The joints between soffit boards should be covered with a proprietary H-section jointing trim rather than left as a butted gap.
If your existing roof has soffit ventilation, the replacement soffits must include the equivalent provision. Continuous ventilated soffits - which include a strip of fine mesh running the full length rather than individual vent inserts - are the neatest approach and are less likely to block with debris over time.
Corner details at the return of the eave need care. Mitred corners in uPVC require accurate cutting and the correct corner trim; a poorly mitred corner gaps open within a season as the material moves.
Gutter brackets are fixed to the new fascia before the gutter lengths go on. The bracket spacing matters - too wide and the gutter sags between fixings, eventually pulling the joints apart. 500 to 600mm centres is typical for standard domestic guttering.
The fall must be set before the brackets go in. A string line or level is used to ensure a consistent drop toward the outlet - too shallow and the gutter holds standing water; too steep and it overflows at the outlet before the rest of the run has cleared. The run must be checked as a whole before the gutter sections clip in, not adjusted bracket by bracket as an afterthought.
Joints are sealed with the manufacturer's recommended sealant and clipped or bolted depending on the profile. After fitting, all joints should be checked with water poured from a watering can to confirm there are no leaks and the fall is working correctly.
Downpipes connect the gutter outlet to the drain at ground level. They should be clipped to the wall at regular intervals - unsupported downpipes vibrate in wind and eventually separate at the joints. Where a downpipe passes close to a door or window, the brackets should be fixed so the pipe sits clear of the frame.
At ground level, the downpipe should discharge into a swan-neck into a drain inlet, a butt connector into a water butt, or a shoe that directs water away from the wall. A downpipe that simply terminates flush against the wall at low level will cause damp at the base of the wall.
All old material - stripped guttering, fascia and soffit offcuts, fixings, and debris from the rafter feet - should be removed from site. After clear-up, a final check from ground level confirms the fall looks right, all joints are flush, and the finished line of the fascia is straight.
We work across Isleham and neighbouring villages including communities near Soham and Mildenhall. If you want to know what is actually wrong before committing to any work, call us to arrange a roof survey.
No obligation · We usually respond within 2 hours
Storm damage, active leak, damaged ridge - we aim to be on-site within 24 hours.
