A leaking gutter is one of the most consistently misdiagnosed problems in Bristol.
The damp patch on your bedroom wall isn't always a roof leak. In many cases it's a gutter that's been overflowing against the brickwork for months — saturating the wall above and tracking down behind the plasterboard. The fix costs a fraction of the damp proofing treatment that often gets recommended instead.
At TD Roofing Contractors we repair and replace guttering across all Bristol BS postcodes. Cast iron on Victorian terraces. uPVC on post-war semis. Aluminium on modern properties. Every system diagnosed correctly before any work is agreed.
Bristol’s housing stock requires specialized drainage knowledge. We tailor our services to your specific neighborhood:
Victorian Terraces (Southville & Montpelier): We are experts in repairing the complex "Butterfly" roof internal gutters and parapet drainage systems that often cause hidden damp.
Heritage Properties (Clifton & Redland): We provide specialized cast iron gutter restoration and high-quality aluminium alternatives that satisfy Conservation Area requirements.
Modern Developments: We upgrade standard guttering to Deep-Flow systems, capable of handling 50% more water volume during heavy Bristol downpours.
We provide a full suite of rainwater solutions designed to handle the unique architectural challenges of the Bristol area.
Most gutter failures in Bristol aren't where they appear to be.
The overflow you see at the front of the house often originates at a failed joint halfway along the run, a blocked downpipe shoe at ground level, or a bracket that's dropped the gutter out of correct fall. We trace every leak to its actual cause before recommending any repair.
We re-seal joints in the correct compound for the material — cast iron compound on cast iron, not silicone — and reset brackets where the fall has been lost. No temporary fixes that fail within six months.
When the guttering is past the point where repair is cost-effective — typically on systems over 40 years old where multiple joints and brackets are failing simultaneously — full replacement is the honest recommendation.
We install modern high-capacity uPVC, seamless aluminium, and traditional cast iron profiles. Every installation is set to the correct fall toward the downpipe outlet — typically 1:600 minimum — confirmed with a spirit level before the scaffold comes down.
The downpipe shoe — the bend at the base where the pipe meets the ground drain — is the most common blockage point on Bristol's cast iron and uPVC systems.
A blocked shoe backs water up the full height of the downpipe and causes gutter overflow at the outlet above. The symptom looks like a gutter problem. The cause is ground level. We clear shoes, rod downpipe runs, replace corroded cast iron sections, and upsize undersized 68mm pipes to 110mm where the drainage area requires it.
We cover the full Bristol area for gutter repairs, replacements, and cast iron restoration:
North Bristol: Clifton, Redland, Henleaze, Westbury-on-Trym, Bishopston, Horfield
South Bristol: Bedminster, Southville, Totterdown
East Bristol: Fishponds, Staple Hill, Kingswood
Greater Bristol: Filton, Bradley Stoke
Every location listed links to its dedicated area page where we've detailed the specific guttering challenges of each neighbourhood.
20 Years on Bristol's Guttering
Thomas Doherty has been repairing and replacing guttering across Bristol for over 20 years — cast iron on Victorian terraces, uPVC on post-war semis, aluminium on period properties in Conservation Areas. Every guttering material and every property type across the BS postcodes is familiar territory.
We Find the Actual Cause — Not Just the Obvious Symptom
Most gutter repairs treat the visible overflow point. We survey the full system — every joint, every bracket, every downpipe from outlet to ground drain — before recommending any repair. The cause and the symptom are rarely in the same place.
Free Inspection — No Ladders Required
We inspect guttering from the drone on taller properties and with close visual inspection at accessible levels. You see the evidence before we quote anything. No charge for the inspection, no obligation on the quote.
10-Year Workmanship Guarantee
Every gutter replacement is backed by a full 10-year workmanship guarantee. Checkatrade vetted — every review independently verified.
If you see water "curtaining" over the side during rain, or if there are green algae stains on your brickwork, your system is failing. Small leaks at joints can usually be repaired, but if the plastic has become "sun-bleached" and brittle, a full replacement is more cost-effective.
Yes. Many Bristol homes still have original cast iron. We can scrape back rust, reseal joints with specialized cold-applied bitumens, and repaint them to prevent future corrosion.
For most homes, High-Capacity uPVC is the best value. However, for properties exposed to the winds of the Severn Estuary, we recommend Seamless Aluminium as it won't crack or warp under extreme temperature changes.
In many cases, yes. "Penetrating damp" is frequently caused by water overflowing from a blocked or broken gutter and soaking into the masonry. Fixing your gutters is the first step in drying out your home.
We recommend a professional clean at least twice a year—once in late Autumn after the leaves fall, and again in Spring to clear out moss and grit from winter storms.
Green or black staining running vertically down the brickwork below a gutter section is the clearest sign of a joint failure — water is escaping at that point and running down the wall face rather than to the downpipe. Pooling water or moss growth along the gutter base indicates a fall problem. Paint peeling on fascia boards behind the gutterline is an early sign of moisture ingress behind the gutter before rot becomes structural.
Cast iron in reasonable condition is worth repairing — it significantly outlasts uPVC when maintained and looks correct on Bristol's period properties in a way that uPVC never quite replicates. If the sections are sound but joints are failing, targeted repair is good value. If through-corrosion has created holes at the base of multiple sections simultaneously, replacement is more cost-effective. We assess each cast iron system individually rather than defaulting to one recommendation.
If the damp is caused by the guttering — yes, completely and immediately. If the guttering is overflowing against the brickwork and that's what's saturating the wall, fixing the gutter closes the water source and the wall dries out over the following weeks. If the damp has a different cause, we'll tell you that during the survey rather than letting you spend money on guttering that won't solve it.
Every year, Bristol homeowners spend thousands on internal damp treatment — plaster stripped, damp-proof paint applied, walls re-plastered — for a problem that keeps coming back every winter.
In a significant proportion of these cases, the cause is a leaking or overflowing gutter directly above the affected wall — not rising damp, not a structural wall issue, not condensation.
Water overflowing from a cast iron joint on a three-storey Redland terrace runs down the brickwork face and eventually penetrates through to the internal plaster. On a Bedminster two-up two-down, an overflowing gutter at the rear elevation saturates the kitchen wall at first-floor level. Both are consistently misdiagnosed as damp problems requiring internal treatment when the actual fix is a gutter repair costing a fraction of the damp work.
Before commissioning any internal damp treatment on an upper floor or bedroom wall, check the guttering directly above it. If it's overflowing or leaking against the brickwork at that point, start there. We'll tell you honestly whether the gutter is the cause — and if it is, fixing it costs significantly less than anything that happens on the inside of the wall.
Bristol guttering problems are almost always fixable quickly and affordably — when they're diagnosed correctly.
The mistake is treating the overflow point as the failure point, or treating a wall damp problem as a damp issue when the gutter above it is the actual cause.
Free inspection, honest diagnosis, fixed written quote.
We don’t just "patch leaks." At TD Roofing, we're your Bristol Roofers that deliver engineered solutions specifically designed to withstand the high-velocity winds of the Severn Estuary. Every project is executed strictly to BS 5534 standards, ensuring your home has the maximum wind resistance and structural longevity required for the Bristol climate.
TD Roofing Contractors are your local roofing contractors in Bristol, providing 20+ years of expert service. From emergency roof repairs to new slate installations, we cover all BS postcodes with quality and integrity.
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