Flat roofs that stay dry, year after year.
New flat roofs and repairs for extensions, garages, dormers and commercial buildings.
EPDM rubber, GRP fibreglass and high-performance felt.
Not sure which system you need? We'll tell you honestly, and explain why.
Is your flat roof letting you down?
Flat roofs fail quietly, because nobody looks at them. These are the signs it needs attention.
Puddles that never dry
Standing water slowly works its way through, especially on felt.
Bubbles and blisters
Trapped air and moisture lift the surface and weaken it.
Cracks or splits
Old felt goes brittle after years of hot summers and cold winters.
Edges or joints lifting
Wind gets under a loose edge and the damage spreads fast.
A stain on the ceiling below
Often in the kitchen extension, the room you least want a leak in.
Moss and plants growing
Roots and trapped moisture shorten the life of the roof.
A good flat roof isn't really flat.
Flat roofs got a bad name from the old felt of the 1970s and 80s, which cracked and bubbled after a few years. Today's materials are completely different, and a well-fitted flat roof lasts for decades.
The secret is that a good flat roof has a gentle slope, called a fall, so rain runs off into the gutter instead of sitting on top. Getting the fall right matters as much as the material.
Most of the flat roofs we fit across Bedford, Milton Keynes, Dunstable and Leighton Buzzard are over kitchen extensions, garages and dormers. Where there's a room underneath, we recommend a system that will last, because a leak there costs far more than the roof.
We strip back to the deck, replace any rotten boards, add insulation where it's needed, then lay the new waterproof layer and fit new edge trims.
Where flat roofs usually fail
- Joints and seamsWhere sheets of felt overlap.
- Low spotsWhere water collects and sits.
- Edges and trimsWhere wind can get underneath.
- UpstandsWhere the roof meets a wall.
- OutletsWhere water drains into the gutter.
What changes with a new flat roof
A simple drawing of a tired felt roof seen from above, and the same roof replaced with rubber.
- 1. Standing water that never drains away
- 2. Blisters and cracks in the old felt
- 3. A joint lifting at the edge
- 1. A proper fall, so rain runs to the gutter
- 2. One seamless sheet with no joints to fail
- 3. New edge trims, fixed securely
These are illustrations, not photos of a real job. Every roof is different, and we'll show you photos of your own roof from the drone survey.
EPDM, GRP or felt?
Three good options at three price points. Here's the honest comparison we give our customers.
| EPDM rubber Most popular | GRP fibreglass | High-performance felt | |
|---|---|---|---|
| What it is | One rubber sheet cut to fit your roof | Resin and glass matting that sets hard | Two or three layers, torched on |
| Joints | None across the roof | None at all | Overlapping seams |
| Typical life | 25 to 30 years | 25 years plus | 10 to 20 years |
| Walk on it? | Maintenance access only | Yes, great for balconies | Not regularly |
| Best for | Extensions, garages, bays | Balconies, awkward shapes, roofs you can see | Garages, sheds, tight budgets |
| Price | ££ | £££ | £ |
Typical lifespans for a well-fitted roof, from our flat roof guide. Read the full EPDM, GRP and felt comparison →
Our flat roof services
EPDM rubber roofs
One seamless sheet, our usual recommendation for extensions.
GRP fibreglass roofs
A tough, hard-wearing finish for balconies and awkward shapes.
Felt roofs
High-performance torch-on felt for garages and simple roofs.
Extensions, garages and dormers
New flat roofs for homes, and roofs over new extensions.
Flat roof repairs
Leaks, splits, blisters and lifting edges found and fixed.
Insulation and new decking
Rotten boards replaced, and insulation added where needed.
Old roofing is removed and disposed of responsibly. Materials come with the manufacturer's warranty.
What our customers say
★★★★★ 5.0 from 21 Google reviews · Read them all →
“Great guys, did the work agreed with no hidden extras. Clean and efficient, would definitely recommend.”
“Great job! Highly recommended.”
“Great work, great knowledge and would 100% use again. Highly recommend!”
From first call to a dry roof
Free drone survey
Photos of the whole flat roof, even the parts you can't see from the ground.
Choose your system
We explain EPDM, GRP and felt, and recommend the right one for your roof.
A clear written quote
What's included, how long it takes and what it costs.
We fit it and tidy up
Final checks, a guarantee, and your home left as we found it.
See your whole roof, without anyone climbing on it.
We fly our drone over your roof and send you the photos with any problems marked, so you see exactly what we see. Then we tell you honestly what needs doing now, and what can wait.
- Your roof photographed from every angle
- Problem areas marked on your photos
- Honest advice on what's urgent and what isn't
- A clear written quote if work is needed
- No ladders, no obligation
Example survey photo
1
2
3
- 1Chimney pots and flaunching
- 2Ridge tiles and mortar
- 3Valley and roof tiles
- ✓Marked photos sent to you
What does a flat roof cost?
It depends on the size of the roof and the system you choose. Our flat roof guide gives typical prices per square metre for EPDM, GRP and felt.
Other roof work we do
Local roofers who treat your roof like their own.
The Aqua Tight team looks after roofs across Bedfordshire and the surrounding areas. We're a local, fully insured team, and every job gets the same care, big or small.
Turn up when we sayYour time matters.
Honest adviceIf a repair will do, we won't sell you a new roof.
Clear pricesWritten quotes, no hidden extras.
Tidy and safeProper access, and we clear up after ourselves.
Roofers across Bedfordshire and beyond
Local to you, so we can get there quickly when the weather turns.
Know your roof before you call
Frequently asked questions
Which flat roof system is best?
For most extensions and garages, we recommend EPDM rubber. GRP suits balconies and awkward shapes, and felt suits garages and tight budgets. We'll recommend the right one for your roof.
Can you repair my flat roof, or does it need replacing?
Small splits, blisters and lifting edges can often be repaired. If the roof is old, holding water in several places or leaking again and again, replacing it is usually better value.
How long does a new flat roof take?
Most garage and extension roofs take a short time, depending on size and the weather. GRP needs dry weather to set properly. Your written quote includes a timescale.
Can you fit a flat roof in winter?
EPDM can be fitted in most weather. GRP needs a dry spell, so we plan it around the forecast.
Can I walk on my flat roof?
GRP is made to be walked on, so it's ideal for balconies. EPDM is fine for occasional maintenance, but isn't meant for regular foot traffic.
Is my flat roof guaranteed?
Yes. Our workmanship is guaranteed, and the materials come with the manufacturer's warranty.
Ready when you are
Don't wait for the next downpour.
Book your free drone survey today, or call us any time.
07828 762441