The garage roof is the most overlooked roof on most Limerick properties. While homeowners pay close attention to the main house roof — watching for slipped slates after storms, noticing moss growth, arranging periodic inspections — the garage roof quietly deteriorates in the background until a damp patch on the garage ceiling or a puddle on the floor announces that something has gone seriously wrong.
At Doherty Roofing, garage roof replacement is one of our most common jobs across Limerick, Clare and Tipperary. The vast majority of domestic garages across the region — whether attached to the house or freestanding — have flat felt roofs that were installed during the original construction and have never been replaced. Many of these roofs are now well past the age at which replacement should have been considered. We carry out garage roof replacements using quality felt, EPDM rubber and GRP fibreglass systems — selecting the most appropriate material for each property and budget and carrying out every installation to the highest standard.
Fully insured, Safe Pass certified and members of the National Guild of Master Craftsmen. Free inspection, free quote, no call-out fees, no pressure to proceed.
Felt
The most widely used and cost-effective option for garage roof replacement in Limerick. Modern torch-on felt systems offer reliable performance at a competitive upfront cost. The right choice where budget is the primary consideration.
Lifespan: 15 to 25 years.
EPDM Rubber
Our most commonly recommended upgrade for Limerick garage roofs. EPDM lasts thirty years or more, handles freeze-thaw cycles better than felt and has no joints to fail. Higher upfront cost than felt but typically cheaper over the long term when you factor in the replacement cycle felt requires.
Lifespan: 30 to 40+ years.
GRP Fibreglass
A seamless, single-surface system that is harder wearing than both felt and EPDM. Ideal where the garage roof receives foot traffic or where maximum durability is the priority.
Lifespan: 25+ years.
Jim will discuss all three options honestly during the free inspection and recommend what genuinely suits your garage, your budget and your long-term priorities — not what generates the most margin.
Step 1 — Free Inspection
Jim visits your property and inspects the existing garage roof thoroughly — assessing the current membrane condition, checking the timber deck for moisture damage and rot, inspecting the drainage outlets, upstands and any areas of concern. A clear, honest assessment of the roof's condition and the replacement options available is provided before any decision is made.
Step 2 — Written Quote
A clear, itemised written quote covering all aspects of the work — stripping the existing membrane, deck assessment and repair where required, the chosen new membrane system, all upstand and outlet work and clean-up. No hidden items, no surprise additions.
Step 3 — Strip and Deck Assessment
The existing membrane is stripped and all waste removed from site. The timber deck is inspected in full — any areas of rot or softness identified are discussed with you and agreed before repair work proceeds. No unexpected costs without your knowledge and approval.
Step 4 — New Membrane Installation
The new roofing system is installed to the highest standard — correct falls to the drainage outlet, properly dressed and sealed upstands, fully watertight outlet connections. Every element of the installation is carried out with attention to detail because the details are what determine whether a flat garage roof lasts fifteen years or twenty-five.
Step 5 — Final Check and Clean-Up
Jim carries out a final inspection of the completed garage roof before leaving site. All waste is removed, the surrounding area is left clean and tidy and you are walked through the completed work before sign-off.
The key factors are the age of the roof, the extent and distribution of the deterioration and the condition of the timber deck beneath. If the roof is more than fifteen years old, shows widespread blistering or cracking across multiple areas, or has been leaking for an extended period, replacement is almost always the more cost-effective long-term decision. If the roof is relatively young and the problem is genuinely isolated, a targeted repair may be appropriate. Jim will inspect your garage roof and give you a straight answer on which category it falls into.
Yes — and a significant one. A garage roof from the 1980s is now between thirty-five and forty-five years old — twenty years or more past the end of its designed lifespan. The membrane on a roof of this age has almost certainly failed or is in the very late stages of active failure. The timber deck beneath it may have been absorbing moisture for years. A free inspection will tell you exactly where it stands and what is required.
For most Limerick garage roof replacement applications, yes. EPDM's thirty-year-plus lifespan means it eliminates the replacement cycle that a felt roof requires, and its flexibility handles Limerick's freeze-thaw winter cycles significantly better than rigid felt membranes. The higher upfront cost is typically recovered over the lifespan of the installation. However felt remains a perfectly reliable and cost-effective option where upfront budget is the primary consideration. Jim will discuss both options honestly during the free inspection.
Yes — particularly where the garage is attached to the main house. A failing garage roof adjacent to a shared wall can allow moisture to penetrate the structure of the wall, causing damp patches on internal walls inside the house. If you have unexplained damp on a ground floor internal wall adjacent to an attached garage, have the garage roof inspected before spending money on internal damp treatment.
For a standard single garage, a full roof replacement — stripping the existing membrane, deck assessment and any required repairs, and installation of the new system — is typically completed in one to two days. A double garage or one requiring significant deck repair may take a day longer. Jim will give you a realistic timeline as part of the free quote.
Yes. We carry out garage roof replacements across all of County Limerick, County Clare and County Tipperary. Contact Jim for a free inspection and quote wherever your property is located across the Midwest.
Most garage roofs in Limerick were installed at the time the property was built — in many cases in the 1970s, 1980s or 1990s. A standard felt flat roof, if originally installed to a reasonable standard, has a design lifespan of fifteen to twenty-five years. Simple arithmetic tells you what that means for a garage built in 1985: the roof should have been replaced by 2005 at the latest, and in many cases by 2000.
This is not a criticism of Limerick homeowners — it is simply a reality that flat garage roofs do not announce their deterioration as clearly as pitched roof problems do. A slipped slate on the house roof is visible from the driveway. A felt membrane that has been blistering and cracking on the garage roof for three years is invisible until it fails actively and water starts coming in.
The other reality is that Limerick's climate is particularly hard on flat felt roofing. The persistent Atlantic rainfall, the UV degradation during the occasional warm summers and the freeze-thaw cycles during cold Clare and Limerick winters all accelerate the deterioration of felt membranes faster than in drier, more sheltered parts of Ireland. A felt garage roof that might last twenty years in a more sheltered location may fail in fifteen years in an exposed Limerick position.
If your Limerick garage was built more than fifteen years ago and the roof has never been replaced, a free inspection from Doherty Roofing is one of the most worthwhile property maintenance steps you can take. It costs nothing, takes thirty minutes and gives you an honest picture of where your garage roof stands.
We offer a full range of roofing services in Limerick and the surrounding counties. Whatever your roofing needs, Doherty Roofing has you covered.
Doherty Roofing is a fully insured, family-run roofing company based in Limerick. Led by Jim Doherty, we provide expert roof repairs, new roof installations, flat roofs, guttering and more across Limerick, Clare and Tipperary. Call us today for a free, no-obligation quote.
CRO Business Registration Number: 782030
Copyright © 2026 Doherty Roofing. All Rights Reserved.
Website by TME Digital
