Professional Flat Roof Repair
Blisters, cracks and leaks fixed properly — lasting repairs, not temporary patches.
- All flat roof types: felt, EPDM, GRP & liquid systems
- Root-cause diagnosis — not just surface patches
- Fixed pricing with no hidden extras
A Leaking Flat Roof Gets Worse Fast
Flat roofs are particularly vulnerable to standing water, UV degradation and thermal movement. A small blister, crack or failed seam can quickly allow moisture into the deck and insulation below. Once water gets in, it spreads sideways through the structure — so the leak you see inside is rarely directly below the actual fault. Left untreated, this leads to timber rot, ruined insulation and expensive structural repairs.
Radiant Roofing carries out lasting flat roof repairs across Kent, Sussex and Surrey. We diagnose the root cause of the problem — not just the visible symptom — and carry out repairs using materials that are fully compatible with your existing roof system, whether it is felt, EPDM rubber, GRP fibreglass or a liquid-applied membrane.
How It Works
Free Inspection
We survey the entire flat roof, identify every defect and photograph the damage so you can see exactly what needs doing.
Fixed Quote
You receive a clear, written quote with no hidden extras. We explain the repair method and materials before you commit.
Expert Repair
Our flat roofing specialists carry out the repair using system-compatible materials, ensuring a watertight and durable result.
Guarantee
Every flat roof repair is backed by our workmanship guarantee. If the issue returns, so do we — at no extra charge.
Free Inspection
We survey the entire flat roof, identify every defect and photograph the damage so you can see exactly what needs doing.
Fixed Quote
You receive a clear, written quote with no hidden extras. We explain the repair method and materials before you commit.
Expert Repair
Our flat roofing specialists carry out the repair using system-compatible materials, ensuring a watertight and durable result.
Guarantee
Every flat roof repair is backed by our workmanship guarantee. If the issue returns, so do we — at no extra charge.
What Our Flat Roof Repair Service Includes
We repair every type of flat roof covering found on domestic and commercial properties. Our vans carry a full range of materials so most repairs can be completed on the first visit.
What Does Flat Roof Repair Cost?
Typical price range
£150 – £1500
VAT may apply depending on the project
Factors that affect the price:
- 1Type and extent of the damage
- 2Roof covering material (felt, EPDM, GRP, liquid)
- 3Whether deck board or insulation needs replacing
- 4Access requirements and roof size
We provide a fixed, written quote after inspection. Most flat roof repairs are completed within a single day. No call-out fees — you only pay for the work done.
What Our Customers Say
Verified Google ReviewsJane S.
Kent
They were very friendly, professional and polite and left the site immaculate at the end of the day. I would thoroughly recommend them to others. The work was carried out to a very high standard.
Peter B.
East Sussex
Excellent work, highly recommended! Very knowledgeable, by far the best roofing company we have ever used and super nice guys.
Sarah M.
Surrey
Radiant Roofing completed our roof repair quickly and professionally. Great communication throughout and a fantastic result.
Frequently Asked Questions
Most flat roof repairs cost between £150 and £1,500 depending on the type and extent of the damage, the covering material and access requirements. A simple patch on a garage roof is at the lower end, while repairing failed upstands and replacing damaged deck board sits higher. We always provide a fixed quote before starting.
We aim to inspect your flat roof within 48 hours of enquiry and schedule repairs as quickly as possible. Most repairs are completed in a single visit lasting a few hours. If specialist materials need ordering, we will let you know the expected timeline upfront.
It depends on the overall condition. If the damage is localised and the rest of the felt is sound, a repair is usually the most cost-effective option. However, if the felt is cracked in multiple places, badly blistered or over 15 years old, a full replacement with a modern system like EPDM or GRP will be better value long term. We will give you honest advice either way.
We cover Kent, East Sussex, West Sussex and Surrey. Our teams regularly work in Tunbridge Wells, Crowborough, Sevenoaks, Tonbridge, Uckfield, Haywards Heath, East Grinstead and surrounding towns and villages.
Yes. Every flat roof repair we carry out is backed by our workmanship guarantee. We use manufacturer-approved materials and methods, so product warranties also apply. If any issue arises after our repair, we return and put it right at no extra cost.
Contact Us!
Get in touch with us!
Looking for a free quote? Just fill in the form below, and we'll take care of the rest!
Contact Information:
Mobile (24/7): 07753 165 005
Landline (Office Hours): 01892 356 967
Email: contact@radiantroofing.co.uk
Head Office:
Address:
Alpha House
Crowborough Hill
Crowborough
TN6 2EG
Opening Hours:
Monday to Friday: 7:30 am – 6:00 pm
Saturday: 7:30 am – 12:00 pm
Sunday: Closed (mobile still available)
Our Mobile and Email is available 24/7
