Written by Andrew, Lead Roofer
CORC Certified
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Emergency Roof Repairs 24/7
CORC Certified
Public Liability Insured
Emergency Roof Repairs 24/7
Gutter repair costs £199 to £750 for most jobs in London in 2026, depending on the type of repair, the gutter material and how the roofer gets to it. A single leaking joint on a two-storey house resealed from a ladder sits at the bottom of that range. Replacing a downpipe on a three-storey block from a tower sits at the top.
Gutter repair costs £199 to £750 for most jobs in London in 2026, depending on the type of repair, the gutter material and how the roofer gets to it. A single leaking joint on a two-storey house resealed from a ladder sits at the bottom of that range. Replacing a downpipe on a three-storey block from a tower sits at the top. Cast iron repairs on period properties run higher again because the work takes longer and the gutters are heavy.
Gutter repairs with Bernard Andrews Roofing start from £199. That is the price for coming out, getting up to the gutter safely, fixing the fault properly and testing it with water before leaving. Most homeowners searching for gutter repair costs are looking at a price list assembled by a comparison site, not a figure from a roofer who does the work. This guide gives the roofer’s figures.
This guide covers gutter repair costs in the UK and London for 2026, what the common repairs cost individually, how cast iron changes the price, when a gutter should be repaired, refurbished or replaced, and when a leaking gutter is a sign of a bigger roofline problem.
Gutter repair costs depend on four things: the type of fault, the gutter material, the height of the gutter and the access needed to reach it. The table below shows what typical repairs cost in London in 2026, including labour, materials and ladder or tower access on a standard two-storey house.
| Gutter repair type | Typical London cost 2026 |
|---|---|
| Reseal one leaking uPVC gutter joint | From £199 |
| Reseal additional joints on the same visit | £40-£60 per joint |
| Refix loose brackets and re-pitch a sagging run (up to 6m) | £199-£300 |
| Replace a cracked uPVC gutter section (up to 4m) | £250-£400 |
| Replace a uPVC downpipe section or full drop | £250-£450 |
| Replace a running outlet or stop end | £199-£260 |
| Split and reseal one cast iron joint | £250-£400 |
| Cast iron section repair or replacement | £350-£700 |
| Cast iron refurbishment (reseal inside, repaint outside) | £60-£120 per metre |
| Scaffold or tower access where a ladder is not safe | £250-£600 extra |
Comparison sites such as Checkatrade and MyBuilder publish national averages of £50 to £125 for a joint reseal and £180 to £250 for a partial repair. Those figures are not wrong, but they are national averages that blend a handyman in a market town with a roofing contractor in Zone 2. Gutter repair in London costs more than the national figure for reasons that have nothing to do with the gutter, which the next section explains.
Gutter repair quotes should state what is included. A proper quote lists the number of joints or metres, the access method, whether the roofer will water-test the run afterwards, and whether the price includes VAT. A quote that does not mention access is a quote that has not thought about access, and access is usually where the surprise on the invoice comes from.
Gutter repair in London costs 15 to 40 per cent more than the UK average, with inner London at the top of that range. Labour rates are higher, parking is harder, congestion and ULEZ charges apply on the van, and rear gutters on terraced streets are often only reachable through the house or over a neighbour’s wall. None of that changes the repair, but all of it changes the time the job takes.
A realistic minimum for a London roofer is £150 to £200 even when the part itself costs £8. Our from £199 price covers the travel, the ladder or tower, the roofer’s time to diagnose the fault rather than guess at it, the repair and a water test. Sealant smeared over a dirty joint from a ladder costs less than that, and it fails the following winter, which is why we do not offer it.
The table below gives four worked examples of gutter repair costs on common London property types. Each example assumes the roofer can get to the gutter without full scaffolding.
| London property scenario | What the job involves | Typical cost 2026 |
|---|---|---|
| Victorian terrace in Islington, two storeys, front elevation | One leaking uPVC joint above the bay, ladder access | £199-£280 |
| 1930s semi in Wimbledon, front elevation | Re-pitch a 6m sagging run, four new brackets | £280-£420 |
| Three-storey mansion block in Battersea, rear elevation | Replace a cracked downpipe section at second-floor level from a tower | £450-£750 |
| Period townhouse in Kensington, cast iron gutters | Split and reseal two leaking joints, refix one bracket | £500-£850 |
Terraced houses in Islington and across north London show the most common London gutter fault: a uPVC system fitted in the 1980s or 1990s whose gaskets have hardened and shrunk. Resealing one joint fixes one joint. When the third joint on the same run starts dripping, the conversation moves from repair to replacement, and that decision is covered later in this guide.
Gutter material changes the repair cost more than any other single factor because it changes how long the repair takes and what the roofer needs to do it. uPVC is quick to cut and clip. Aluminium is light but needs matching profiles. Cast iron is heavy, brittle and bolted together, so a cast iron joint cannot be resealed properly without unbolting it.
| Gutter material | Typical London repair rate | What affects the price |
|---|---|---|
| uPVC | £30-£45 per metre | Matching the profile of an older system, gaskets and unions |
| Aluminium | £35-£60 per metre | Availability of the original profile, powder-coat matching |
| Cast iron (repair) | £60-£120 per metre | Corroded bolts, weight, whether sections can be reused |
| Cast iron (new, like-for-like) | £80-£150 per metre | Bespoke profiles, hoppers, conservation approval |
Cast iron repair costs roughly double the uPVC rate for a reason that has nothing to do with the metal being expensive. A 1.8 metre length of Victorian half-round cast iron weighs around 12 kilograms. Two people are needed to support it while the joint bolts are cut out, and the sections have to be reassembled with the right stainless bolts and washers without cracking a casting that is 130 years old. That is skilled work, and skilled work takes longer.
Most gutter repair jobs fall into four categories. Each one has a typical cause, a typical fix and a typical price, and each one is regularly misdiagnosed.
Leaking gutter joints are the most common repair a London roofer sees. On uPVC systems the joint leaks because the rubber gasket inside the union has hardened, or because the gutter has expanded and contracted through enough summers to pull the joint apart. On cast iron the joint leaks because the original putty between the bolted sections has perished.
Resealing a leaking uPVC joint costs from £199 for the first joint and £40 to £60 for each additional joint on the same visit. The proper repair means separating the joint, cleaning both faces, fitting a new gasket or union and re-seating the gutter with the correct fall. Running a bead of silicone along the outside of a dirty joint is not a repair. It is a delay.
Cast iron joints cost £250 to £400 to reseal because the sections have to come apart. The Metal Gutter Manufacturers Association is clear that a lasting cast iron joint repair means removing the bolts, separating the sections, cleaning back to bare metal and re-bedding with a low-modulus gutter sealant. The MGMA describes the quicker wire-brush-and-seal method as short-term, and a roofer quoting £80 for a cast iron joint is almost certainly quoting for the short-term method.
Sagging gutters cost £199 to £300 to re-pitch on a typical run of up to six metres. The gutter has dropped because a bracket has pulled out of the fascia, because the brackets were spaced too widely when the system was fitted, or because standing water and debris have added weight the brackets were never designed to carry. Re-pitching involves resetting or replacing the brackets and re-establishing a fall of roughly 1 in 350 towards the outlet, then water-testing to confirm the run drains.
Brackets pulling out of the fascia are a warning sign rather than a gutter fault. A bracket screw that no longer bites has usually found soft timber, and soft timber means the fascia board behind the gutter is rotting. That situation is covered in the roofline section of this guide, because refixing brackets into a rotten fascia is money spent on a repair that cannot hold.
Downpipe repairs cost £250 to £450 for a uPVC section or full drop on a two-storey house, and £450 to £750 on a three-storey property where a tower is needed. Downpipes fail at the joints, at the swan neck where the pipe offsets under the eaves, and at the shoe at the bottom where the pipe meets the gully. A cracked downpipe often shows as a green stain down the wall or a damp patch inside at the same height.
Blocked downpipes are a separate problem with a separate price. Clearing a blockage falls under gutter cleaning rather than gutter repair, and the gutter cleaning cost guide covers what that costs in London. A downpipe that keeps blocking usually has a problem at the gully below ground level rather than in the pipe.
Cracked gutter sections, failed stop ends and broken running outlets cost £199 to £400 to replace depending on whether the profile is still made. uPVC guttering fitted before 2000 often came in profiles no longer produced, which is the honest reason a small crack sometimes turns into a four-metre replacement so the joints match.
Cast iron gutter repair on Victorian and Edwardian properties is a specialist job, and it is the one area where the cheapest quote is usually the most expensive decision. Cast iron rainwater goods on a London period property can be 100 to 150 years old. With maintenance, they will do another 100 years. Without it, a single winter of standing water can perforate a section that a £300 refurbishment would have saved.
Historic England states plainly that lead and cast iron rainwater goods, with appropriate maintenance and redecoration, last far longer than modern replacement materials. The Historic England guidance on rainwater goods also confirms that like-for-like replacement of cast iron in cast iron does not normally need Listed Building Consent, while swapping cast iron for uPVC on a listed building is likely to require it. Properties in conservation areas may sit under an Article 4 direction, which brings gutters and downpipes under planning control even on unlisted houses.
Cast iron restoration costs £60 to £120 per metre in London against £80 to £150 per metre for new cast iron, and that comparison is the whole argument for refurbishment. Restoring a sound system means supporting each section, cutting out corroded bolts, separating and cleaning the joints, re-bedding them, reassembling with stainless bolts, then stripping loose rust, priming and applying exterior topcoats. The inside channel gets a coating made for continuously wet cast iron. The Society for the Protection of Ancient Buildings recommends exactly this approach and specifically flags the backs of downpipes, which nobody paints because nobody can see them, and which is where downpipes rust through.
Bernard Andrews Roofing works on cast iron gutters both old and new across London under the heritage and conservation roofing service, with the repainting stage handled alongside exterior painting while the scaffold is already up.
Gutter repair, gutter refurbishment and gutter replacement are three different jobs at three different prices, and most cost guides only mention two of them. Knowing which one a gutter needs is the decision that decides the bill.
Repair is the right answer when the fault is local: one leaking joint, one dropped bracket, one cracked section on an otherwise sound run. Repair costs £199 to £450 and the rest of the system carries on.
Refurbishment is the right answer when the gutter is structurally sound but every joint is tired. On cast iron it means the full reseal-and-repaint described above, which we call a gutter MOT: seal the inside with a liquid coating, repaint the outside, refix the brackets and water-test the lot. Refurbishment costs less than replacement, keeps the original profile on a period property and typically adds 20 to 30 years before the next redecoration.
Replacement is the right answer when more than a third of the joints on a run leak, when brackets are pulling out because the fascia behind them has rotted, when cast iron is perforated rather than surface-rusted, or when the gutter cannot carry the water off the roof no matter how well it drains. The gutter replacement cost guide covers what a full system costs by material and property type.
A roofer who quotes repair on a system that needs replacing is taking a fee now and another in six months. A roofer who quotes replacement on a system that needs one joint resealed is the reason people distrust roofers. The honest quote states which of the three the gutter needs and why.
A leaking gutter is often not a gutter fault at all. Water can run behind the gutter rather than into it, and the gutter takes the blame for a problem that sits behind or above it. Resealing joints does nothing for that water, which is why some homeowners pay for the same repair twice.
The common causes are a rotten fascia board that no longer holds the bracket screws, roofing felt at the eaves that has perished and lets water drop behind the gutter, tiles or slates that finish too short of the gutter, and a damaged drip edge that lets water cling to the fascia by surface tension. The Historic England maintenance checklist recommends inspecting the timber fascia, soffit and bargeboards every time attached gutters are checked, and looking for staining, algae and washed-out joints behind the gutter line.
The tell-tale sign is water appearing behind the gutter rather than through a joint, or staining on the fascia even after a joint has been resealed. Brackets that repeatedly work loose are another. In either case the fix is a fascia and soffit repair, not a gutter repair, and the fascia and soffit replacement cost guide covers what that costs. A roofer, unlike a gutter cleaning firm, will look at the roofline before quoting for the gutter, because the roofer is the one who will be called back if the diagnosis is wrong.
Deep flow guttering takes roughly twice the water of a standard half-round profile, and it is the answer when a clean, correctly pitched gutter still overflows in heavy rain. Overflow on a gutter that is clear and draining properly is a capacity problem, not a fault, and no repair fixes a capacity problem.
Approved Document H rates a standard 100mm half-round gutter with a 63mm outlet for a roof area of 37 square metres, and the effective area of a pitched roof is larger than its footprint. A long run with one outlet, an extension discharging onto the same gutter, or a valley concentrating two slopes into one point all push a standard gutter past its design. The rain is heavier too: Met Office data shows the UK winter half-year in 2016 to 2025 was 13 per cent wetter than the 1961 to 1990 average, and the Met Office analysis of heavy rainfall shows intense downpours increasing fastest of all.
Bernard Andrews Roofing now installs deep flow guttering across London. Deep flow is a replacement rather than a repair, so it gets its own guide, but a roofer diagnosing a persistent overflow should be asking whether the gutter is failing or whether the gutter is simply too small.
Access is the largest variable in any gutter repair quote, because the repair takes 30 minutes and getting to it safely can take the rest of the morning. A ladder is fine for a short, low-risk job on a two-storey house with firm ground below. Anything longer, higher, over a conservatory, over a pavement or involving cast iron needs a tower or scaffold, and that adds £250 to £600 to the price.
The HSE guidance on working at height specifically warns against resting a ladder against plastic guttering, which is exactly where a ladder ends up when someone is trying to reach a gutter. A roofer who prices a three-storey job at ladder rates has either not seen the property or does not intend to follow the rules.
Emergency call-outs cost more because they displace scheduled work and usually happen in the weather that caused the problem. A gutter torn off in a storm or a downpipe dumping water against a basement flat wall is worth the premium; a joint that has dripped for six months is not. The emergency roofing call-out service covers the genuine emergencies. Parking and permit charges, rear access through the house, and shared gutters with a neighbour all add time, and a good quote allows for them up front.
Gutter repairs do not need building regulations approval when the work is like-for-like: resealing joints, replacing brackets, swapping a damaged section for the same profile. Requirement H3 of Approved Document H says adequate provision must be made to carry rainwater from the roof, and a repair that restores what was already there meets that requirement without an application.
Changing how the rainwater system works is different. Relocating outlets, altering where the downpipe discharges, connecting a new extension roof into an existing gutter, or redesigning the system for a larger roof area can bring building control into it, and local building control should be consulted before anything more than maintenance.
Listed buildings need Listed Building Consent for any change of material or profile, and houses in conservation areas may fall under an Article 4 direction that removes permitted development rights for external alterations. Like-for-like cast iron repair on a listed building is normally fine. Replacing cast iron with uPVC on a listed building normally is not.
Gutter repairs last anywhere from five years to a century depending on what was repaired, what it was made of and whether the repair was done properly. The table below gives realistic expectations for London conditions.
| Repair or system | Expected life |
|---|---|
| Resealed uPVC joint (new gasket or union) | 5-10 years |
| New uPVC gutter section | 20-30 years |
| Refurbished cast iron (before next redecoration) | 20-30 years |
| Cast iron system overall, maintained | 100+ years |
| Aluminium gutter system | 30-50 years |
| Silicone bead over a dirty joint | One winter, sometimes two |
Refurbished cast iron outlasts new uPVC because the metal itself does not degrade in sunlight and does not expand and contract across the joints the way plastic does. Every 20 to 30 years the paint needs redoing and the joints need checking, and that is the whole maintenance schedule. Regular gutter clearing extends every figure in the table, because standing water is what shortens the life of joints, brackets and paint alike, and the gutter maintenance service exists to keep that standing water out of the gutter in the first place.
Gutter repair is one of the cheaper roofing jobs. Most single-fault repairs in London cost £199 to £450, and even a cast iron joint done properly costs £250 to £400. The expensive version of gutter repair is the one that was not done, because a winter of water running down a wall costs far more in repointing, damp treatment and rotten timber.
Leaking gutters can almost always be repaired when the leak is at a joint, a bracket or a single cracked section. Leaking uPVC joints are resealed with a new gasket or union. Leaking cast iron joints are unbolted, cleaned and re-bedded with sealant. Repair stops being the answer when most of the joints have failed together, or when cast iron has rusted through rather than on the surface.
Leaking joints are the most common gutter problem in the UK, followed by blockages, sagging runs and cracked downpipes. On London terraced housing the typical pattern is a uPVC system fitted in the 1980s or 1990s whose gaskets have hardened, so the joints start dripping one after another over two or three winters.
Resealing a uPVC gutter joint costs from £199 in London for the first joint and £40 to £60 for each additional joint on the same visit. Resealing a cast iron joint properly, with the sections unbolted and re-bedded, costs £250 to £400 per joint. Prices include access on a two-storey house and a water test afterwards.
Twenty-year-old uPVC gutters are approaching the end of their working life, but age alone is not the trigger. Replace them when more than a third of the joints leak, when brackets are pulling out of the fascia, or when sections have gone brittle and crack when handled. Twenty-year-old cast iron gutters are young and should be refurbished, not replaced.
Repairing gutters is cheaper than replacing them when the fault is local, because a £199 to £450 repair keeps a system that has years left in it. Replacement becomes cheaper when repairs would be needed at joint after joint, because three separate call-outs to reseal three joints costs more than the fresh system that would have fixed all of them. Cast iron sits between the two: refurbishment at £60 to £120 per metre usually beats replacement at £80 to £150 per metre.
Replacing the guttering on a three-bedroom house costs £400 to £1,500 depending on material, with uPVC at the lower end and cast iron at the top. The gutter replacement cost guide breaks the figures down by material and property type, including the combined cost when fascias and soffits are replaced at the same time.
Gutter repair costs £199 to £750 for most London jobs, and the price is decided less by the gutter than by what is wrong with it, what it is made of and how the roofer reaches it. The three questions worth asking before accepting any quote are whether the roofer has diagnosed a gutter fault or a roofline fault, whether the gutter needs repair, refurbishment or replacement, and how the roofer intends to get up there safely.
Cast iron gutters on period London properties deserve a specific mention. Refurbished properly, they outlast anything that would replace them, and a roofer who suggests swapping them for plastic is quoting for the easiest job rather than the right one.
Bernard Andrews Roofing is a CORC-certified roofing contractor covering London and the South East, with over 40 years of experience on the roofs and rooflines of the capital’s terraces, semis and period townhouses. For gutter repairs and maintenance starting from £199, get in touch for a quote on 020 3740 3788.