Durable Flat Roofing in GRP, EPDM and Felt
Garages, extensions, dormers and commercial roofs. We repair and replace flat roofs across Hampshire in GRP fibreglass, EPDM rubber and felt, and help you pick the system that suits your property.
Why Ponding and Splits Are A Problem On Their Own
A flat roof holds water where a pitched roof sheds it. When the covering ages, what the standing water does causes problems of its own.
Ponding water
Water that sits on a flat roof works at every weak spot, so a covering that can't drain fails faster than one that can.
Splits and blisters
Old felt cracks, blisters and splits as it ages, and each split is a route straight into the roof deck below.
Failing seams and edges
Seams, upstands and edge trims are where flat roofs leak first, letting water track under the covering unseen.
A rotting deck
Once water reaches the timber deck beneath, it rots, so the repair grows from the covering into the structure.
What The Right Flat Roof Sets Up For Your Property
Choosing and fitting the right system for your roof is what makes the covering drain, seal and last, instead of failing again in a few years.
GRP fibreglass roofing
A seamless, hard-wearing fibreglass covering suited to many flat roofs.
EPDM rubber roofing
A durable rubber membrane with few seams, ideal for a long, low-maintenance life.
Felt roofing
Modern built-up felt systems for a cost-effective, reliable flat roof.
Flat roof repairs
Repair splits, blisters and failed seams to stop leaks and extend the roof's life.
Complete flat roof replacements
Strip and replace worn flat roofs on garages, extensions, dormers and commercial buildings.
Inspections and maintenance
Regular checks and maintenance to catch faults before they let water in.
How We Repair And Replace Flat Roofs
A flat roof is only as good as its covering and deck together. Here is how the survey, the system and the finish fit into the six steps.
Inspection & advice
We inspect the flat roof, find the cause of any problem and advise honestly on a repair or a replacement.
Recommend the right system
We explain the GRP, EPDM and felt options and recommend the one that suits your roof, not a one-size-fits-all answer.
Free written quotation
You get clear written costs for the work, with no hidden extras.
Strip and check the deck
For a replacement, we remove the old covering and check the deck, repairing any damaged timber.
Fit the new covering
We lay the chosen system, sealing seams, upstands and edges to a weathertight finish.
Final check and clean up
We check the roof drains and seals correctly, then leave your property clean and tidy.
Why Homeowners Across Hampshire Choose JSA
JSA combines more than 15 years of roofing experience with real knowledge of the structure beneath your tiles. From repairs and full replacements to inspections, ventilation and timber work, we handle the complete roof, backed by honest advice, transparent pricing and quality workmanship on every job.
15+ Years of Roofing Experience
Our experienced team has worked on pitched roofs, flat roofs and roof structures across Hampshire, from minor domestic repairs to full replacements and specialist structural timber work.
Complete Roofing Service
We inspect, repair, replace and maintain the whole roof system, from tiles and flashing to timbers, ventilation and guttering, so you never need to appoint several different contractors for one roof.
Honest Advice & Clear Quotations
We recommend the work your roof genuinely needs, never a full replacement by default. Every quotation is clear and written, with free, no-obligation advice to help you decide.
Trusted by Homeowners Across Hampshire
Read genuine customer reviews and see why homeowners, landlords and businesses trust JSA Roofing Solutions for honest advice and quality roofing work. Visit our Checkatrade profile to read real feedback from customers across Hampshire who have had their roofs repaired, replaced and maintained by our team.
Have Questions? We've Got the Answers
Find answers to the most common questions about flat roofing, GRP, EPDM, felt, repairs and our process. If you need further advice, our friendly team is always happy to help with free, no-obligation guidance.
Which areas do you cover?
We cover Hampshire and the surrounding areas. Ask us if your town isn't listed and we'll let you know.
Do you provide free quotations?
Yes. Every quotation is free and no-obligation, with clear written costs and no sales pressure.
How long does a flat roof last?
It varies by system and installation. A well-fitted EPDM or GRP roof can last decades, and we'll give you a realistic expectation for the option you choose.
What flat roofs do you work on?
Garages, extensions, dormers and commercial flat roofs, in GRP fibreglass, EPDM rubber and felt.
Can you repair a flat roof, or does it need replacing?
Often a repair will do. We inspect the covering, find the cause of the leak and tell you honestly whether a repair or a replacement makes better sense.
Which flat roofing system is best?
It depends on the roof, its use and your budget. We explain the GRP, EPDM and felt options and recommend the one that suits your property, rather than pushing one system for every job.
Professional Roofing Services Across Hampshire
JSA Roofing Solutions serves homeowners, landlords and commercial properties throughout Hampshire and the surrounding areas, delivering roof repairs, replacements, inspections and free, no-obligation quotations wherever you need us across the South Coast.
Let's Work Together
Got Spray Foam Insulation? We Remove It Too
Spray foam in your loft can hold up a mortgage, a sale or a survey. Our specialist team safely removes open-cell and closed-cell foam, inspects the timbers underneath and fits replacement insulation. Visit JSA Spray Foam Removal to see the full service.
