Flat Roofing
Flat Roofing in Alloa and Clackmannanshire
Whether you need a new flat roof on a garage, extension or dormer, or your existing flat roof is leaking and needs replacing, we install and repair flat roofing systems across the Forth Valley using EPDM rubber and GRP fibreglass.
Why Flat Roofs Fail and How We Fix Them
Most flat roof problems in Alloa and Clackmannanshire come down to two things: poor original installation or age. Many older properties have flat roofs covered with traditional mineral felt that was only designed to last 10 to 15 years. After that, the felt dries out, cracks and lets water in.
We see this regularly on garage roofs, kitchen extensions and dormer cheeks across the Forth Valley. The good news is that modern flat roofing materials like EPDM rubber and GRP fibreglass are significantly more durable. A properly installed EPDM roof can last over 50 years, and GRP offers a seamless, hard-wearing finish that handles standing water without issue.
Before recommending a solution, we always inspect the full roof including the timber deck underneath. There is no point fitting a new membrane on top of rotten boards. If the deck needs replacing or strengthening, we tell you upfront and include it in the quote.
EPDM Rubber vs GRP Fibreglass: Which Is Right for You?
We install both systems and will recommend the best option for your property. Here is how they compare.
EPDM Rubber
A single-sheet rubber membrane that is laid across the full roof area with no joints or seams. Extremely flexible, weather-resistant and long-lasting. Ideal for larger flat roofs and areas with complex shapes.
- Lifespan: 50+ years
- Single sheet, no seams to fail
- Flexible in all temperatures
- UV and weather resistant
- Best for: garages, large extensions
GRP Fibreglass
A resin and fibreglass system that cures into a hard, seamless waterproof surface. Extremely strong and can be walked on without damage. Works well on smaller roofs and areas that need to bear foot traffic.
- Lifespan: 30-40 years
- Hard, walkable surface
- Seamless waterproofing
- Can be finished in colour
- Best for: balconies, small extensions, dormers
Not sure which system is right for your roof? We will assess your property and explain the options. There is no pressure to choose one over the other. We recommend what will work best for your situation and budget.
Types of Flat Roof Work We Handle
We work on all types of domestic flat roofs across Alloa and the Forth Valley. Whether it is a small porch roof that needs recovering or a large extension roof that needs a complete replacement, we have the experience and materials to deliver a lasting result.
- Garage flat roofs
- Extension roofs
- Dormer flat roofs
- Porch and bay window roofs
- Balcony waterproofing
- Felt roof replacements
- Flat roof repairs
- Timber deck replacement
- Insulation upgrades
- Drainage improvements
Common Questions About Flat Roofing
It depends on the material. Traditional felt lasts 10 to 15 years. EPDM rubber can last over 50 years. GRP fibreglass typically lasts 30 to 40 years. The lifespan also depends on the quality of installation and whether the timber deck beneath is in good condition.
The cost depends on the size of the roof, the material chosen, and whether the timber deck needs replacing. A typical garage flat roof replacement starts from around 1,500 pounds. We provide a detailed written quote after inspecting your roof so there are no surprises.
Sometimes a repair is all that is needed. If the damage is localised and the rest of the roof is in good condition, a patch or resealing job can extend its life. If the felt is cracking across the whole surface or the deck is soft, a full replacement is usually more cost-effective in the long run.
For most garage roofs, EPDM is the better choice. It is slightly more cost-effective, extremely durable, and the single-sheet installation means there are no seams to fail. GRP is a better option if the roof needs to be walked on regularly or if you want a hard, rigid finish.
A standard garage flat roof can usually be completed in one to two days depending on the condition of the timber deck. Larger roofs or those needing significant deck repairs may take longer. We will give you a clear timeline as part of the quote.
Need a Flat Roof Sorted?
Tell us about your flat roof and we will arrange a free assessment. We will explain the options, recommend the right system, and give you a clear price with no obligation.
Request a Callback
Leave your details and we will call you back within 24 hours.