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Waterproofing services in Croydon for flat roofs, chimneys and leaking roofs
Apex provide waterproofing services across Croydon for the parts of a house where rain gets in: flat roofs, chimney stacks, lead flashing and worn brickwork. Patrick finds where the water is entering, photographs it and agrees one price with you before any work starts.
Free waterproofing quote
Pick the job. It takes about 30 seconds.
Or call 020 8138 0918. Pay on completion.
5.0 on Google30 reviews, all 5 stars
Expert Roofer VerifiedEvery check passed, see our profileWaterproofing work we carry out
Water gets into a house through a handful of weak points. Each of these services closes one of them.
Flat roof repairs
Flat roof leaks traced and fixed on felt, EPDM and GRP, from split seams and blisters to failed flashings and outlets.
See flat roof repairs
EPDM rubber roofing
Firestone RubberCover EPDM laid in a single sheet with no joints, for extensions, dormers and garages across Croydon.
See EPDM rubber roofing
GRP fibreglass roofing
GRP fibreglass flat roofs laid in resin and glass mat, cured into one tough, walkable shell with a coloured topcoat.
See GRP fibreglass roofing
Leadwork
Split, lifted or missing lead around chimneys and walls replaced with new code 4 lead flashing and sealed into the brick.
See leadwork
Repointing
Tired mortar raked out of chimney stacks and brick walls and replaced with a matching mix that seals out the rain.
See repointing
Roof repairs
Leaks traced, slipped tiles and slates replaced, ridges and valleys fixed, with photos of the fault before you agree.
See roof repairsWhere water gets into Croydon homes
Damp coming from above gets in through one of these routes.
Ponding and splits on a flat roof
Water left sitting on a flat roof finds every crack in old felt. Splits, blisters and puddles that never dry are the warning.
Failed flashing at walls and chimneys
Where a roof meets a wall or a stack, lead seals the joint. Once it lifts or cracks, rain runs straight down behind it.
Open mortar joints
Driving rain soaks through brickwork where the mortar has washed out, and shows up as damp patches inside after storms.
Overflowing gutters and downpipes
Blocked or leaking gutters pour water down the walls, soaking the brickwork and staining it green below every joint.
Leaks with no obvious cause
A stain that appears only in heavy rain, or moves around, needs tracing on the roof. Patrick finds the entry point before anything is quoted.
How we waterproof a roof or wall
Waterproofing starts with finding the entry point, because water travels before it shows. Patrick checks the roof covering, the flashings, the stack and the brickwork above the damp, photographs where the water is getting in and sends you the photos. You get one price for the fix that closes that route, not a list of extras.
Flat roofs are made watertight in Firestone RubberCover EPDM, GRP fibreglass or torch-on felt, with a 14-day cooling-off period on every flat roof. Flashing is renewed in code 4 lead and finished with lead seal. Open brickwork is raked out and repointed, and blocked or leaking gutters are cleared, resealed or replaced. You pay on completion, once the work is done and the site is clean.
- Entry point traced and photographed
- EPDM rubber, GRP or felt flat roofs
- Code 4 lead flashing and lead seals
- Chimneys and walls repointed
- Gutters cleared, sealed or replaced
Keeping the rain out of Croydon homes
Croydon's housing mixes Victorian terraces with flat-roofed rear extensions, 1930s semis with garage roofs and bay windows, and dormers added on top in later years. Every join between old and new is a place for water to get in. With over 30 years' experience on south London houses, Patrick knows where to look first and how to seal each one for good.
Leaks fixed for good, in our customers' words
Had a leak in my lead flashing around my chimney wanted to get it renewed Patrick came with he's team of men and carried out work involving all new code 4 lead flashing since then never seen a leak very happy with the work
My flat roof had a leak called Patrick to come and assess once he found the problem we agreed on the price very happy with he’s work hıghly recommend
Had a problem with my flat roof patrick came and found the solution made it very easy along the way showing me photos and excepting payment on completion highly recomend apex roofing and guttering ltd
Had a leak in my chimney Patrick came with he's team after discussing the best way to move forward we proceed very happy with the end results and the guarantee provided highly recommend
Had a leak in my felt rock called patrick he came and showed me photos Stating i needed a new roof i agreed and they sent to work completed in time and Cleaned up Nice really recomend
Recomend to anyone needing a flat roof repair or renewal Patrick carried out work for me with he’s team supper clean on time and highly recommend to anyone needing a flat roof
What waterproofing costs
Waterproofing is priced on the fix, and the fix depends on where the water gets in. Renewing a short run of flashing costs far less than a new EPDM or GRP flat roof, and repointing one weathered wall is a smaller job than a whole chimney stack. Patrick prices the work from his photos and agrees one fixed figure with you before anything starts.
What sets the price
- Where the water is getting in
- Flat roof area and the covering chosen
- Lead, pointing or gutters involved
- Height and access
- Damage to timbers or decking underneath
Waterproofing services questions
What waterproofing services do you provide?
We waterproof roofs and the brickwork around them: flat roofs in EPDM rubber, GRP fibreglass and torch-on felt, lead flashing at chimneys and walls, chimney repairs, repointing and guttering. If what Patrick finds points to a cause other than rain getting in from above, he tells you straight.
Which flat roof covering is the most waterproof?
EPDM rubber goes on as one sheet with no joints, GRP fibreglass sets as one hard shell, and torch-on felt is laid in bonded layers. All three keep the water out when they are laid properly. Patrick recommends the one that suits your roof's size, shape and use, and every flat roof comes with a 14-day cooling-off period.
How do you find where a leak is coming from?
Water runs along timbers and felt before it drips, so the stain on your ceiling is often some way from the actual gap. Patrick checks the roof covering, the flashings, the valleys and the brickwork above the damp, and photographs the entry point he finds. The repair then goes after the cause, not the stain.
Do you repair leaks on dormer and extension roofs?
Yes. Dormer and extension flat roofs leak where the covering has failed or where they meet the main roof and walls. We repair the failed section and the flashing, or replace the covering in EPDM, GRP or felt.
Do I pay anything up front?
No. You pay on completion, once the work is done and you are happy with it. The price is agreed before any work starts, with no extra or hidden fees.
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Water getting in somewhere?
Book a free visit and Patrick will trace the leak, photograph it and give you one price to seal it.