
Flat Roofing Portsmouth
Durable felt, EPDM and GRP flat roofs on extensions, garages and dormers. Local, family-run and fully insured — covering Portsmouth, Southsea, Fratton, Cosham and the rest of Hampshire.
Free Flat Roofing Quote — Portsmouth
Quick response — usually the same day.
Flat & Felt Roofing
Flat & Felt Roofing in Portsmouth, Hampshire
Flat roofs fail at the details — upstands, outlets and joins — long before the middle of the sheet gives up. In Portsmouth that matters more than most places: the PO1 area is dominated by dense Victorian terraces with exposed, wind-hit slate roofs, and Solent coastal winds, salt-laden air and wet Hampshire winters lift tiles, weather flashings and clog gutters with leaf fall. Our roofers know the seafront streets running back from Southsea and the streets around them, so we arrive with the right materials and the right access plan first time.
The rear additions and back extensions on Portsmouth terraces nearly all have flat roofs; ours are laid with proper falls and upstands tucked into the brickwork so they stop leaking for good. In windy, exposed spots around Portsmouth we fully bond flat-roof systems and use heavy-duty edge trims, so the wind cannot get under the edge and peel the roof back.
We strip back to sound decking, replace anything soft, add firrings so water actually runs to the outlet, then lay a high-performance felt, EPDM or GRP system dressed properly into every upstand. Every flat roofing job we carry out in Portsmouth is quoted in writing after a free inspection — you see photographs of what is actually wrong before you spend a penny. Most single-storey extension or garage flat roofs are completed within one to two days with minimal disruption.
Homeowners in PO1 choose us because we answer the phone, turn up when we say and tidy up after ourselves. Our family-run, fully insured team also covers Southsea, Fratton, Cosham and the rest of Hampshire for flat roofing and all general roofing work. Because we also cover Gosport (about 2 miles away), Fareham (about 5 miles away) and Havant (about 6 miles away), our vans pass through Portsmouth most weeks — which keeps flat roofing appointments in PO1 quick to arrange.
What our Portsmouth flat roofing service includes
- Torch-on felt systems and EPDM rubber
- GRP fibreglass flat roofs
- Extension, dormer and garage roofs
- New firrings to correct standing water
- Trims, drips and outlet renewal
- Rooflight and skylight upsets sealed
Our Process
Complete Roofing Care From Start to Finish
From your first inspection to clean-up and guarantee, here's how we work.
Inspection & Advice
A detailed roof inspection with honest, no-obligation advice so you know exactly what your roof needs.
Free Written Quote
We talk through your options and email a clear, fair, no-obligation quotation.
Installation & Repair
Our skilled, insured team completes the work to the highest standard using quality materials.
Clean-Up & Guarantee
We clear all waste, leave your home as we found it, and back the work with solid guarantees.
Our Work
Recent Roofing Projects in Hampshire
A look at some of the roofs we've recently installed, repaired and cleaned across Hampshire.

Clay Pantile Re-roof
Full clay pantile re-roof on a Hampshire property, including new breathable membrane and battens.

Chimney Repoint & Flashing
Chimney repointed and lead flashing renewed after persistent damp on a Hampshire chimney breast.

Flat Roof Replacement
New felt flat roof over a Hampshire rear extension, with fresh trims and outlets.

Moss Removal & Roof Clean
Heavy moss growth removed and the roof softwashed on a Hampshire semi-detached house.

uPVC Fascias & Soffits
Rotten timber replaced with maintenance-free uPVC fascias and soffits on a Hampshire bungalow.

Slate Repair & Valley Renewal
Slipped slates re-fixed and the valley re-leaded on a period Hampshire property to cure a long-standing leak.

New EPDM Rubber Flat Roof
New OSB decking and a single-piece EPDM rubber membrane laid on a Hampshire flat roof for a seamless, leak-free finish.

Natural Slate Roof Repairs
Slipped and cracked natural slates replaced around a rooflight on a Hampshire property, leaving a watertight finish.

Full Roof Strip & Re-tile
Complete strip and re-tile from full scaffold, with new dry ridge and verge system on a Hampshire detached house.

Gutter Clean & Repair
Blocked gutters cleared, joints resealed and brackets refixed on a Hampshire bungalow.

Dormer & Valley Re-tile
Dormer re-tiled with new lead valley and flashings on a Hampshire property.

GRP Fibreglass Flat Roof
Grey GRP flat roof with lantern upstand waterproofed in Hampshire.
Testimonials
What Hampshire Customers Say
Rated Excellent based on real Google reviews from homeowners across Hampshire.
“Recently bought a flat and wanted my guttering checked out. Mark quickly responded and came to visit a couple of days later. Super friendly guy who clearly knows what he's talking about. Would definitely use his services again.”
“They are efficient and effective in correcting our gutter issues. Very pleased with the initial consultation over the phone and could get an appointment within the week.”
“Mark did a great job cleaning out our gutters at a very reasonable price. He was thorough and gave us feedback on a couple of issues with our gutters. Recommended.”
“Mark did a great job at fixing my guttering in a difficult place to access. He also sorted another leak in a different area. Very pleased with his service. I would definitely recommend.”
“Mark is a great guy. Used twice now, really good guy, would recommend to anyone.”
“Guttering repair job completed swiftly and to a good standard with great communication. Would highly recommend.”
“Mark and his colleague did a great job for us today replacing numerous damaged roof tiles at our home. Highly recommended.”
“Great from start to finish. So pleased with their work that I have recommended them to my friend.”
Flat Roofing Portsmouth — your questions answered
- How much does flat roofing cost in Portsmouth?
- We price every flat roofing job in PO1 individually after a free visit. The quote is fixed and in writing, so the price you agree is the price you pay.
- How quickly can you get to Portsmouth (PO1)?
- We have crews working across Hampshire every week, including Southsea, Fratton, Cosham and nearby Gosport and Fareham. Most Portsmouth inspections are booked within a few days, and genuine emergencies are prioritised — call 07337 738327.
- Do you work on dense Victorian terraces with exposed, wind-hit slate roofs in Portsmouth?
- Yes — dense Victorian terraces with exposed, wind-hit slate roofs make up much of the PO1 area and we carry out flat roofing on them every week. We bring matching materials and plan access around the seafront streets running back from Southsea so the job is done in as few visits as possible.
- Is your flat roofing work guaranteed?
- Yes. We are fully insured and all workmanship is guaranteed. Materials used on flat & felt roofing projects in Portsmouth carry their own manufacturer warranties, which we confirm in your quote.
- Do you cover the rest of Hampshire?
- We do — Portsmouth is one of many Hampshire areas we serve. You will find our full Hampshire coverage, including every town we work in, on our Hampshire roofing page.
Get Your Free Flat Roofing Quote in Portsmouth
Get a free, no-obligation roofing quote in Portsmouth. Call us today or send an enquiry and we'll come back to you with honest advice.
Request A Free Quote
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Photo Gallery
More Roofs We've Worked On in Hampshire
A rolling look through our recent roofing, repair, cleaning and guttering work.














































































































































