Full flat roof replacement
Felt stripped, deck inspected and replaced where needed, new GRP system installed from bare boards up across Eastleigh.
Flat Roof Repair
Eastleigh
CMW Roofing & Renovations carries out flat roof repair and replacement across Eastleigh and the surrounding SO50 area. Eastleigh has a large amount of housing built in the 1960s through 1980s — many properties have garage and extension flat roofs that are now past the end of their felt lifespan. We replace them with GRP fibreglass systems that are seamless, durable and guaranteed for 20 years.
GRP fibreglass systems
20-year manufacturer guarantee
Garages & extensions
£5m insured
5-star reviews
Recommended locally
Fully insured
Work completed safely
Free quotes
No pressure, no fuss
GRP Flat Roofing in Eastleigh
A large portion of Eastleigh's housing stock was built between the 1960s and 1980s. Many of these properties have garages and rear extensions with flat roofs that were laid in traditional felt — a system with a lifespan of around 10–15 years. When felt reaches the end of its life it leaks at the lap joints, and a like-for-like replacement in felt simply starts the same clock again. We replace aging felt systems in Eastleigh with GRP fibreglass, which is seamless, jointless and guaranteed for 20 years.
Our GRP flat roof installation in Eastleigh begins with stripping the existing felt and inspecting the roof deck. Any rotten or damaged boards are replaced before work continues. Edge trims are fitted and fixed to the perimeter, a primer coat is applied to the full deck surface, and primer bandage is bedded into all joints and upstands. The GRP topcoat is then applied in a single continuous pour, creating a seamless, jointless surface. A coloured gelcoat finish is applied to complete the job. Where the existing deck is sound and the damage is localised, we can carry out targeted GRP repairs rather than a full replacement — we will always advise honestly on which is the better investment for your roof.
We carry out flat roof work across the full SO50 area and surrounding postcodes. All installations include a written workmanship guarantee alongside the manufacturer's 20-year product guarantee on the GRP system.
Edge trims and upstands
Aluminium edge trims fixed to all perimeters before GRP application to create a clean, weathertight finish on every Eastleigh flat roof.
Primer and bandage
Primer coat applied to the full deck and primer bandage bedded into all joints and junctions before the topcoat is laid.
Seamless GRP topcoat
GRP topcoat applied in a single continuous pour — no lap joints, no seams, no future failure points on your Eastleigh flat roof.
Deck board replacement
Rotten or damaged boards identified during strip-out and replaced before the new system is laid to protect the long-term guarantee.
Flat roof leak repairs
Targeted GRP repairs for Eastleigh flat roofs where the deck is sound and only a localised area needs attention — repair vs replacement assessed honestly.
Areas we cover
We cover flat roof work across Eastleigh, Chandler's Ford, Bishopstoke, Fair Oak, West End, Hedge End, Boyatt Wood and the wider SO50 area. If you are not sure whether we cover your location, call or message and we will confirm.
We typically respond to enquiries within a few hours and can usually arrange a free site visit and written quote within a few days.
FAQs
Do you cover the full Eastleigh area for flat roofs?
Yes. We cover Eastleigh town centre and surrounding areas including Chandler's Ford, Bishopstoke, Fair Oak, West End, Hedge End and Boyatt Wood.
How much does a flat roof replacement cost in Eastleigh?
Cost depends on the size and condition of the existing deck. We provide a free written quote after a site visit — there is no obligation and no charge for the quote.
Can you repair a leaking flat roof on an extension in Eastleigh?
Yes. Where the deck is in good condition we can carry out targeted repairs. We assess honestly and advise whether repair or full replacement gives you better long-term value.
What flat roof system do you install in Eastleigh?
We use GRP fibreglass — a seamless, jointless system with no lap joints or seams to fail. It carries a 20-year manufacturer guarantee and is the most durable flat roof solution available for residential properties.
Have a question not answered above?
Call 07876 803 029Recent flat roof work
Get a free flat roof quote in Eastleigh
Call or message for a free, no-obligation quote. We cover Eastleigh and the wider SO50 area and aim to respond the same day.