★★★★★
“They came out the same day, found the problem straight away and had it fixed before the rain came back. Honest price and very tidy. Highly recommended.”
Formby
Flat Roofs — Ormskirk, L39
Flat Roofs in Ormskirk — Modern Systems on a Wide Range of Properties
Ormskirk and the surrounding L39 area presents a varied range of flat roofing applications. The town itself has a mix of modern housing with garage and extension flat roofs, while the surrounding rural areas include farmhouses and outbuildings with older flat-roofed sections that often require attention. We install and repair flat roofs across all of these, carrying GRP fibreglass, EPDM rubber and torch-on felt systems.
For most new flat roof installations in Ormskirk we specify GRP fibreglass. The seamless nature of the system — a single poured and cured membrane with no joints or seams — makes it the most reliable long-term option for garage roofs, rear extensions and outbuilding roofs. It is harder-wearing than felt, more visually consistent and requires significantly less maintenance over its service life. A correctly installed GRP flat roof on an Ormskirk property should last well in excess of twenty years.
For larger flat roof areas, or for applications where the specific characteristics of the building make EPDM rubber more appropriate — in particular where thermal movement is a significant factor — we install EPDM instead. Torch-on felt remains a valid option for straightforward, lower-budget applications and for repairs to existing felt systems where the deck is still sound.
We always inspect the existing deck before recommending a system. On an older farmhouse or outbuilding in the Ormskirk area, the deck may be in poor condition following years of water ingress from a failing covering. Identifying this before the installation begins avoids the most common cause of premature flat roof failure.
📞 Call for a free quoteAll systems installed
GRP fibreglass, EPDM rubber and torch-on felt. We carry and install all three and advise on the best choice for each property.
Rural and period property experience
We work on farmhouses, outbuildings and period properties as well as modern housing — the range of flat roof applications in Ormskirk requires this.
Deck inspection before quoting
We check the substrate before recommending a system and giving a price. Hidden problems found early are cheap; found during the job they are not.
10-year written guarantee
Every flat roof installation is backed by our written guarantee.
Building Regulations
Building Regs, U-Values & Warm Roof Upgrades
Current Building Regulations (Approved Document L) target a flat roof U-value of around 0.16–0.18 W/m²K. A full replacement covering more than 50% of the roof typically triggers this requirement — which means most flat roof replacements are also a genuine opportunity to properly insulate the roof, often for the first time. We build every full replacement to a warm roof specification (insulation above the deck) as standard, since it's now the recommended approach and largely eliminates the condensation risk that older cold roof designs carry. See our complete guide to Building Regs and warm roof upgrades for the full detail.
Common questions
Flat Roofs — What People Ask
What flat roofing system do you recommend in Ormskirk?
GRP fibreglass for most garage roofs and extensions. EPDM rubber for larger areas or where thermal movement is a factor. Torch-on felt for repairs or lower-budget applications where the deck is sound. We advise specifically after inspecting the roof.
Can you install a flat roof on a rural outbuilding or barn?
Yes. We work on outbuildings, farm buildings and rural structures as well as domestic properties. Call 07596 884288 to discuss your specific requirements.
How long does a GRP flat roof installation take?
For a standard garage or extension, typically one to two days. Larger or more complex applications may take longer. We give a realistic timescale before starting.
My existing flat roof is leaking — do I need a full replacement?
Not always. We inspect the deck first. If the deck is sound and the failure is localised, a repair may be the most cost-effective solution. If the system has reached the end of its life or the deck is damaged, replacement is the better long-term option.
Does a flat roof replacement need to meet Building Regulations?
Yes, in most cases. A full replacement covering more than 50% of the roof is treated as a thermal element upgrade under Approved Document L, targeting a U-value of around 0.16-0.18 W/m²K. We build every full replacement to this standard, using warm roof construction, as a matter of course.