No Full Roof Replacement Needed
The vast majority of flat roofs across the region can be restored and waterproofed over the existing covering, dramatically extending the roof's service life at a fraction of the replacement cost.
Professional flat roof repair and waterproofing services across Sligo town and county. Our specialist liquid-applied membrane systems eliminate leaks, recondition ageing roofs, and deliver enduring protection with manufacturer warranties of up to 25 years.
Sligo's exposed position on the northwest Atlantic coast brings heavy rainfall, powerful winds, and rapidly shifting weather that place relentless demands on flat roof structures. Without specialist waterproofing, even well-maintained roofs can develop leaks and costly water damage.
Property owners across the region regularly find ponding water on flat roofs and are understandably concerned about the consequences. With conventional roofing materials such as felt or bitumen, those concerns are well-founded — traditional systems were not designed to endure prolonged water contact.
As the video demonstrates, modern liquid-applied waterproofing systems solve this problem at source. These advanced membranes are purpose-built to withstand permanent ponding water without softening, lifting, or compromising their protective seal.
Our flat roof waterproofing systems:
At Dublin Protective Coatings, we deliver comprehensive flat roof leak repair, sealing, and waterproofing for residential and commercial properties across Sligo. From home extensions in Strandhill and Rosses Point to commercial premises at Finisklin Business Park and hotels throughout the county, we provide lasting, cost-effective roof protection — without the expense and disruption of a complete roof replacement. Learn more about our team and our commitment to quality workmanship.
We provide expert flat roof repair and waterproofing throughout Sligo using advanced liquid-applied membrane technology engineered to restore, reinforce, and extend the working life of your existing roof.
Our systems are ideally suited for:
As the video illustrates, the vast majority of flat roof problems can be resolved without tearing off the existing roof. Most of the local properties we treat have their roofs reconditioned and reinforced using liquid waterproofing membranes combined with fibreglass reinforcement matting. We also offer specialist asbestos roof waterproofing and polyurea roof coating systems for demanding applications.
This approach enables us to:
Whether your Sligo property has an active leak, visible weather damage, or you simply want to protect against future problems, we develop a tailored waterproofing solution that delivers lasting roof protection with minimal cost, disruption, and downtime.
Watch: Reconditioning existing felt roofs with liquid membrane
We never take shortcuts — every project follows a rigorous, proven process designed to deliver lasting waterproof performance.
Every project opens with rigorous power-washing and surface decontamination, stripping away accumulated grime, salt spray, moss, and environmental deposits. The region's heavy northwest rainfall and Atlantic proximity mean roof surfaces deteriorate quickly, and the waterproofing membrane demands a thoroughly clean substrate to achieve full adhesion.
Proper surface preparation underpins every successful liquid waterproofing system — it is the single most important step in the entire process.
All moss, lichen, algae, and root growth are systematically cleared, and every drainage outlet and channel fully restored. The mild, wet northwest climate encourages rapid organic colonisation, particularly on flat roofs sheltered between commercial buildings and on north-facing residential properties throughout the area.
Watch: LAVA 20 application on asphalt roof
Watch: Applying liquid membrane over fibreglass matting
Every crack, deteriorated joint, corroded fixing, and compromised detail is identified and repaired before any waterproofing material is applied.
As demonstrated in the video, this typically involves:
With all preparation and repairs complete, the liquid waterproofing membrane is applied in precise, overlapping passes to form a continuous, unbroken protective barrier.
The system is built up progressively:
The finished result is a continuous, seamlessly bonded waterproof membrane that shields the roof against ponding water, severe weather, and thermal movement for decades.
Modern liquid-applied waterproofing systems offer Sligo property owners a proven, high-performance alternative to traditional roofing methods — delivering long-lasting results with minimal disruption.
Watch: Why installers prefer this system over traditional fibreglass
The vast majority of flat roofs across the region can be restored and waterproofed over the existing covering, dramatically extending the roof's service life at a fraction of the replacement cost.
The liquid membrane cures to form an unbroken, joint-free shield — eliminating the seams and weak points where traditional roofing systems are most vulnerable to leaks.
Liquid waterproofing is applied quickly without hot works, open flames, or heavy plant — ideal for homes and businesses throughout the area.
The finished membrane moves with thermal expansion and structural settlement, holding its seal through changeable northwest weather conditions.
Formulated to endure Ireland's demanding conditions — from sustained rainfall and Atlantic exposure to the seasonal temperature shifts common across the northwest.
Reconditioning and waterproofing an existing flat roof costs a fraction of full replacement, with lower labour, reduced material waste, and minimal disruption to your property.
Owing to its exceptional adhesion, flexibility, and longevity, this waterproofing system excels where traditional methods fail — providing a proven, long-term solution for flat roof protection across the region.
Versatile Protection for Every Property Type
Our liquid waterproofing systems are built for versatility, protecting flat roofs of every scale across Sligo — from single-storey home extensions to large commercial and industrial complexes. We regularly treat flat roofs on:
No matter the scale or complexity of the roof, we deliver consistent, professional results built to last year after year across the region.
Whether it's a small residential extension in Strandhill or a large commercial rooftop in Sligo town, our proven waterproofing system delivers lasting protection you can depend on.
Watch: Restoring and waterproofing existing flat roofs
Waterproofing Engineered for the Northwest
Our flat roof waterproofing systems are installed strictly in accordance with manufacturer specifications and backed by long-term warranties of up to 25 years, providing property owners reliable protection and complete peace of mind. We utilise advanced systems such as the LAVA 20 waterproofing system for proven, long-term results.
As demonstrated in the video, many roofs that appear to be at the end of their life do not need to be stripped out or replaced. In many cases, existing felt roofs — even those decades old — can be professionally cleaned, reconditioned, detailed, and fully waterproofed using advanced liquid-applied systems. Even valley leak repairs can be addressed as part of the reconditioning process.
Our approach:
For you, this means:
By combining specialist installation methods with manufacturer-backed warranties, we deliver dependable, future-proof waterproofing solutions that protect your property long after the work is complete.
Common questions from Sligo property owners about our flat roof waterproofing services. For more general questions, visit our main FAQ page.
Yes, we cover all of Sligo town and county, including Strandhill, Rosses Point, Ballisodare, Collooney, Tubbercurry, Ballymote, Enniscrone, Coolaney, and all surrounding areas. We treat both commercial and residential flat roofs throughout the region.
We typically schedule inspections in Sligo within 3-5 working days. For emergency leaks or storm damage, we offer priority callouts across the town and county.
We work on every type of flat roof found across Sligo — felt, bitumen, EPDM, TPO, fibreglass, concrete, and metal roofs. This covers commercial units, retail premises, industrial buildings, hotels, home extensions, garages, and apartment blocks.
Pricing depends on roof size, condition, and the system required. We provide free, no-obligation on-site surveys and transparent quotations. You receive a clear breakdown before any work begins — no hidden charges.
In most cases, absolutely. The majority of flat roofs we treat are reconditioned and restored rather than replaced. Our liquid-applied membranes bond directly over existing surfaces after proper preparation, saving the cost and disruption of a full strip-out.
Our systems carry manufacturer-backed warranties of up to 25 years. The exact warranty depends on the system specified for your property, and full documentation is provided upon completion.
Yes. We regularly waterproof commercial flat roofs across Sligo, including offices and retail units in the town centre, premises at Finisklin Business Park and Cleveragh Retail Park, hotels and tourism buildings, and industrial facilities throughout the county.
We cover all of Sligo town and County Sligo: Strandhill, Rosses Point, Ballisodare, Collooney, Tubbercurry, Ballymote, Enniscrone, Easkey, Coolaney, Grange, Drumcliff, Mullaghmore, Riverstown, Gurteen, and every area in between.
Concerned about the condition of your flat roof? We offer free, no-obligation site surveys for all Sligo properties — residential, commercial, and industrial.
Our specialist will carry out a comprehensive assessment of your flat roof, outline your options clearly, and provide a detailed quotation within one hour. Visit our blog for more information about flat roof maintenance and waterproofing best practices.
What you can expect:
Contact us today to arrange your free flat roof site survey in Sligo and find out why property owners across Strandhill, Finisklin, Tubbercurry, and beyond trust Dublin Protective Coatings for professional flat roof repair and waterproofing.
