Gutter Repairs London

My name's John Quilligan. A gutter problem almost never stays small if it's left alone. Debris blocks the flow, water backs up and sits in the gutter instead of draining away, and the extra weight puts real strain on the brackets holding the whole run in place.

Left long enough, those brackets start to pull away from the fascia board — and now what started as a five-minute clear-out is a bracket repair, a fascia repair, and possibly damp tracking down the wall below, all at once.

We check gutters properly, in person, on every visit — not from a satellite photo. A photo can tell you a gutter looks intact from above.

It can't tell you a joint's about to fail, that the fall's gone wrong somewhere along the run, or that PVC's gone brittle from years of UV exposure. That's exactly the kind of thing that gets missed by a quote given without anyone actually looking.

Every material fails differently, and knowing which one you've got changes what actually needs doing.

uPVC guttering — the most common material on South London and Surrey homes — degrades from UV exposure over years, becoming brittle and prone to cracking at joints and corners, particularly on south-facing runs that get the most sun.

Cast iron guttering — common on older Victorian and Edwardian properties — relies on its paint coating to stay protected. Once that coating peels or weathers away, bare iron rusts, and rust weakens the metal from the inside long before it's visibly failing from outside.

Finlock concrete box gutters — built into the top of the wall on many 1930s-60s properties across Sutton, Epsom, Worcester Park, and similar areas — are a genuinely different system from standard guttering, integrated into the brickwork rather than bolted onto the fascia. When these fail, it's rarely a simple fix, and it's a common source of expensive surprises for homeowners who don't know their property has this system until something goes wrong.

Blocked gutters of any material put sustained extra weight on the brackets holding the run in place. Left long enough, brackets pull away from the fascia board entirely — which is how a cleaning job you skipped for two seasons turns into a bracket repair and a fascia repair on the same call-out.

Water overflowing during rain, rather than draining through the downpipe — usually a blockage, though it can also mean the fall (the slight slope built into the run) has been lost somewhere along the length.

Visible sagging in a section of guttering — a sign the brackets are under strain, often from standing water weight after a blockage has gone unaddressed.

Staining or streaking down an exterior wall — water finding its way over the edge of the gutter rather than through it, usually at a joint or a low spot in the run.

Damp patches appearing on interior walls, especially upstairs — gutters that have been overflowing for a while can push water back under the roofline rather than just down the wall outside.

Cracked, brittle, or visibly rusted sections — depending on material, this is the specific failure mode described above, and it's rarely isolated to just the one visible spot.

How do I know if I need a repair or a full gutter replacement? If the damage is limited to one or two sections and the rest of the run is sound, repair is usually the sensible option. If the material's failing throughout — widespread cracking on old PVC, rust through multiple sections of cast iron — full replacement tends to be the better long-term spend. See our [Gutter Replacements] page for that comparison in more depth.

What's a Finlock gutter, and why does it cost more to fix? Finlock is a concrete box gutter system built into the brickwork itself, common on 1930s-60s properties. Because it's structural, not just a bolted-on fitting, repairs often involve the wall it's built into, not just the gutter — which is why it's priced differently from standard uPVC or cast iron work.

Do you charge a call-out fee for gutter repairs? No. No call-out fee, ever, whatever the job turns out to be.

Can a blocked gutter really cause damage inside my house? Yes, if it's left long enough. Overflow can push water back under the roofline or down through brickwork rather than just down the outside wall, which is how a gutter problem becomes a damp problem inside.

How quickly can you come out for a leaking or overflowing gutter? Same day in most cases, seven days a week, across South London, South West London, and Surrey.

Do you also do gutter cleaning, or only repairs? Our focus is on repairs and replacement — genuine faults, not routine cleaning. If your gutters just need clearing rather than fixing, we'll tell you that honestly during the inspection.

Minor repairs — resealing a joint, refitting a bracket, clearing a blockage causing overflow — typically run £150-£400, depending on access and how much of the run is affected.

Section replacement — where a length of guttering is cracked, rusted through, or beyond a simple reseal — typically runs £300-£800 depending on material and length.

Finlock or concrete box gutter repair is a different category of cost entirely, since it often involves the brickwork the gutter's built into, not just the gutter itself — we'll give you an accurate figure once we've actually seen the extent of the problem, rather than guess at a number that doesn't reflect the real job.

Emergency callouts for active overflow or leaks affecting the property typically run in a similar range to standard repairs, with no separate call-out fee charged on top.