Flat Roof Repairs, Leaks & Re-Covering

Flat Roof Repairs Explained

Can a Leaking Flat Roof Be Repaired?

Often, yes. Riverstone Roofing Ltd repairs splits, blisters, failed seams, cracked upstands and leaking trims on EPDM, GRP and felt flat roofs across Lincolnshire, Cambridgeshire and Norfolk. A single split in an otherwise sound covering is straightforward to cut out, patch and reseal, and staining that appears only at an edge or upstand is usually a flashing failure rather than a problem with the roof itself. Some things cannot honestly be patched. Bubbling or lifting across a wide area means moisture is trapped under the membrane, a deck that feels soft or springy underfoot has rotted, and felt that has gone brittle has simply reached the end of its life. In those cases we will tell you a replacement is needed rather than take easier money for a repair that will fail. Free written quotes, fixed prices, fully insured, and guaranteed work.

24/7

Emergency Cover

The Service

Stop the Leak,
Extend the Life

A leaking flat roof rarely fixes itself — and water getting in quickly damages insulation, ceilings and timbers. We track down the real source of the problem and carry out a proper, lasting repair, whether your roof is EPDM rubber, GRP fibreglass or felt.

From a single split or blister to failed seams, tired felt and standing water, we’ll get your flat roof watertight again — and tell you honestly whether a repair or a replacement makes more sense.

24/7 Emergency Response

Active leak? We’ll get to you fast and make it watertight, day or night.

Honest Repair-or-Replace Advice

We only recommend a new roof when repairing genuinely isn’t worth it.

Get a Free Quote

How It Works

Our Flat Roof
Repair Process

A clear, no-nonsense process to find the leak and fix it properly.

Inspection & Leak Tracing

We inspect the roof and trace the true source of the leak — not just where it shows inside.

Honest Assessment & Quote

A clear explanation of what’s wrong and a fixed, no-obligation price.

Prepare & Dry the Area

We clean, dry and prepare the damaged area so the repair bonds properly.

The Repair

We patch splits, re-bond seams, treat blisters and seal around outlets and upstands.

Waterproof & Test

We make sure the repair is fully sealed and watertight before we leave.

Clean Up & Advice

We tidy up and give you honest advice on the remaining life of your roof.

What We Fix

Flat Roof Problems
We Repair

Whatever’s gone wrong with your flat roof, we’ve almost certainly fixed it before:

Splits & Cracks

Seal and patch splits and cracks in EPDM, felt and GRP before they let more water in.

Blisters & Bubbles

Cut out and repair blisters and trapped-air bubbles that weaken the surface.

Failed Seams & Joints

Re-bond and re-seal lifting seams, laps and joints — the most common leak points.

Ponding & Drainage

Improve falls and clear or add outlets so water drains away instead of pooling.

Flashings & Upstands

Renew flashings and seal upstands where the roof meets walls and kerbs.

Leak Detection

Trace stubborn, hard-to-find leaks back to their true source and fix them.

Repair or Replace

Should Your Flat Roof Be
Repaired or Replaced?

Not every flat roof problem means a new roof. This is how we assess one on site, and what we would normally recommend once we have.

Common flat roof symptoms, what each usually indicates, and the work normally recommended.
What you are seeing	What it usually means	What we would normally do
A single split or blister	Localised failure while the rest of the covering still has life in it	Repair — cut out, patch and re-seal
Ponding that clears within two days	Normal on a flat roof laid with minimal fall	Nothing. We would leave it and keep an eye on it
Ponding that never clears	The falls are wrong, or the deck has deflected under load	Investigate the deck, then usually re-lay with corrected falls
Bubbling or lifting over a wide area	Moisture trapped underneath the membrane	Replace — patching will not hold
Soft or springy underfoot	The deck below the covering has rotted	Replace, including the deck itself
Several old patch repairs already in place	The covering has reached the end of its serviceable life	Replace
Staining only at an edge or upstand	A flashing or trim failure rather than a problem with the roof itself	Repair the detail, not the whole roof
Felt that has gone brittle and is cracking	Age — the membrane has lost its oils and hardened	Replace

We will always quote the repair where a repair will genuinely hold. Where it will not, we will tell you that instead of taking the easier money.

EPDM Rubber Roofing

Elevate RubberCover Trained Installer

Our company director trained on the Elevate RubberCover EPDM system with Permaroof UK in September 2026. Rubber flat roofs bonded with no flame, usually in one sheet with no joins, and a life expectancy of more than 50 years.

About Our EPDM Roofs

The Work

Repaired & Watertight Again

Patching splits

Sealing seams & outlets

Watertight finish

Questions & Answers

Flat Roof Repair FAQs

The questions homeowners ask us most about flat roof repairs. Can’t see yours? Give us a call.

Often it can be repaired, especially if the damage is localised. If the roof is old and failing across the whole surface, we’ll honestly advise when a replacement is better value.

We offer 24/7 emergency cover and can usually make an active leak safe the same day, with a full repair to follow.

Ponding is usually caused by inadequate falls or blocked/poorly-placed outlets. We can improve the drainage so water sheds properly.

It depends on the problem and access, but repairs are far cheaper than a new roof. We always give a clear, fixed quote first.

Yes — we repair all common flat roof types, matching the repair method and materials to your existing system.

A properly prepared and bonded repair will last for years. If the roof is near the end of its life, we’ll tell you straight.

Yes — we’re fully insured and our repair work is guaranteed.

Flat roof repairs across Lincolnshire, Cambridgeshire and Norfolk — Spalding, Boston, King’s Lynn, Peterborough, Grantham, Wisbech, Stamford and surrounding areas.

Where We Work

Flat Roof Repairs
Across the Region

We provide flat roof repairs for homeowners across Lincolnshire, Cambridgeshire and Norfolk, including Grantham, Sleaford, Stamford, Bourne, Spalding, Boston, Skegness, Peterborough, Wisbech, March, Chatteris, King’s Lynn, Downham Market, Swaffham and Hunstanton. View all the areas we cover, or call 07782 664697 for a free, no-obligation quote.

At a Glance

Riverstone Roofing Quick Facts

Experience: Over a decade of local roofing experience; Riverstone Roofing Ltd incorporated January 2026

Areas Covered: Lincolnshire, Cambridgeshire & Norfolk

Services: New roofs, pitched & flat roof repairs, leadwork, chimneys, fascias & guttering, roof cleaning

Availability: 24/7 emergency call-outs · Free, no-obligation quotes

Credentials: Fully insured roofing contractor

Contact: 07782 664697 · contact@riverstoneroofing.co.uk

Get In Touch

Get Your Free
Roofing Quote

Tell us what you need and we’ll get straight back to you with a free, no-obligation quote — or call us any time, day or night.

07782 664697

Free QuotesFully Insured24/7 Cover

Flat Roof Repairs,
Leaks Sorted.

Can a Leaking Flat Roof Be Repaired?