25-Year Warranty
Leak Protection
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Flat Roof Repair & Waterproofing in Galway

Professional flat roof repair and waterproofing solutions throughout Galway city and county. Our specialist liquid-applied membrane systems stop leaks, recondition ageing roofs, and provide long-term protection with manufacturer warranties of up to 25 years.

Up to 25-Year Warranty Manufacturer-backed
Residential & Commercial All property types
Free Inspection No-obligation quote
Flat Roof Experts

Galway's Reliable Flat Roof Waterproofing Specialists

Galway's direct Atlantic exposure brings sustained rainfall, salt-laden winds, and rapidly changing weather that test flat roof structures to their limits. Without specialist waterproofing, even well-maintained flat roofs can develop leaks and structural deterioration.

Property owners across the region frequently observe standing water on flat roofs and are rightly concerned about potential water ingress. With traditional roofing materials such as felt or bitumen, this concern is well-founded — conventional systems were never engineered to cope with prolonged water contact.

As the video demonstrates, modern liquid-applied waterproofing systems address this problem at source. These advanced membranes are purpose-built to resist permanent ponding water without breaking down, lifting, or losing their protective integrity.

Our flat roof waterproofing systems:

  • Tolerate prolonged ponding and standing water without degradation
  • Resist moss, algae, and biological attack
  • Form a continuous, fully bonded waterproof barrier with no joints
  • Perform reliably through Atlantic storms, coastal exposure, and temperature fluctuations

At Dublin Protective Coatings, we deliver comprehensive flat roof leak repair, sealing, and waterproofing for residential and commercial properties across Galway. From home extensions in Salthill and Knocknacarra to apartment blocks and commercial premises in Oranmore, we provide lasting, cost-effective roof protection — without the expense and disruption of a complete roof replacement. Learn more about our team and our approach to quality workmanship.

What We Do

Full-Service Flat Roof Waterproofing Throughout Galway

We provide professional flat roof repair and waterproofing throughout Galway using proven liquid-applied membrane technology engineered to restore, reinforce, and extend the working life of your existing roof.

Our systems are ideally suited for:

  • Flat roofs & low-slope roofs
  • Concrete roofs
  • Metal roofs
  • Existing felt, bitumen, EPDM, TPO Fiberglass and aging roof systems

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:

  • Restore waterproof protection over deteriorated felt or bitumen surfaces
  • Reinforce weakened or damaged roof sections
  • Create a continuous, seamlessly bonded waterproof membrane
  • Extend the useful life of existing roofs by decades

Whether your Galway property has an active leak, visible signs of wear, or you simply want to prevent future problems, we design a tailored waterproofing solution that delivers long-term roof protection with minimal cost, disruption, and downtime.

Watch: Reconditioning existing felt roofs with liquid membrane

Our Process

How We Waterproof Flat Roofs in Galway

We never take shortcuts — every project follows a rigorous, proven process designed to deliver lasting waterproof performance.

1

Comprehensive Surface Cleaning and Preparation

Each project begins with thorough power-washing and decontamination of the entire roof deck, removing salt residue, dirt, moss, and atmospheric grime. The region's Atlantic exposure means roof surfaces accumulate contaminants rapidly, and the waterproofing membrane requires a clean, sound substrate to achieve full bond strength.

Proper surface preparation is the single most important factor in the long-term success of any liquid waterproofing system.

2

Moss, Lichen, and Coastal Debris Removal

All organic growth, root infiltration, and wind-blown debris are systematically cleared from the roof and drainage system. The local climate — mild and rain-heavy with Atlantic exposure — promotes aggressive moss and lichen colonisation, particularly on north-facing and sheltered roof sections where moisture lingers.

Watch: LAVA 20 application on asphalt roof

Watch: Applying liquid membrane over fibreglass matting

3

Damage Assessment and Structural Reinforcement

Every crack, open lap, failed joint, and worn fixing point is identified, repaired, and reinforced before the waterproofing membrane is applied.

As demonstrated in the video, this typically involves:

  • Restoring and reinforcing aged felt, bitumen, or single-ply coverings
  • Laying fibreglass reinforcement matting across vulnerable junctions and details
  • Securing upstands, abutments, and penetrations against wind-driven rain
4

Layered Application of the Liquid Waterproofing Membrane

Once all repairs and reinforcement are complete, the liquid waterproofing system is applied in successive, precisely controlled layers to form an unbroken protective shield.

The system is built up methodically:

  • Base membrane worked into the reinforcement matting to form a composite layer
  • Additional coats applied to achieve the specified dry-film thickness
  • UV-resistant protective topcoat applied to seal and weatherproof the system

The finished result is a continuous, seamlessly bonded waterproof membrane that shields the roof against ponding water, severe weather, and thermal movement for decades.

Key Benefits

Benefits of Liquid Flat Roof Waterproofing

Modern liquid-applied waterproofing systems offer Galway property owners a proven alternative to traditional roofing methods, delivering long-lasting performance with minimal disruption.

Watch: Why installers prefer this system over traditional fibreglass

No Full Roof Replacement Needed

The majority of flat roofs across the region can be restored and waterproofed without stripping the existing covering, significantly extending the roof's service life.

Seamless & Joint-Free

The liquid membrane cures to form a continuous, joint-free barrier — eliminating the weak points where conventional roofing systems are most vulnerable to leaks.

Rapid & Safe Installation

Liquid waterproofing is applied quickly without hot works, naked flames, or heavy plant — making it ideal for occupied homes and businesses.

Outstanding Flexibility

The cured membrane moves with thermal expansion and structural settlement, maintaining its seal through changeable weather conditions.

Superior Weather Resistance

Formulated to withstand Ireland's most demanding conditions — from persistent Atlantic rain and coastal gales to freeze-thaw cycles common across the west.

Cost-Effective Solution

Restoring and waterproofing an existing flat roof costs considerably less than a full replacement, with reduced labour, materials, and disruption.

Owing to its exceptional adhesion, flexibility, and longevity, this waterproofing system excels where traditional methods fall short — making it a proven, long-term solution for flat roof protection across the region.

Residential & Commercial Flat Roofs in Galway

Versatile Protection for Every Property Type

Our liquid waterproofing systems are engineered for versatility, protecting flat roofs of every scale across Galway — from single-storey home extensions to large commercial complexes. We regularly treat flat roofs on:

  • Commercial buildings and offices in Galway city centre
  • Industrial units and warehouses in Ballybrit and Oranmore
  • Hotels, hospitals, educational facilities, and public buildings
  • Apartment blocks in Knocknacarra, Renmore, and Salthill
  • Residential homes, extensions, and balconies throughout County Galway

Regardless of the size or complexity of the roof, we deliver consistent, professional results built to last across the region.

Whether it's a small residential extension in Salthill or a large commercial rooftop in Galway city, our proven waterproofing system delivers lasting protection you can depend on.

Watch: Restoring and waterproofing existing flat roofs

Warranty

Lasting Protection for Galway Properties

Waterproofing Built to Endure

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 with 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:

  • Extend roof lifespan through expert reconditioning techniques
  • Avoid the expense and upheaval of complete roof replacement
  • Provide manufacturer-backed warranties of up to 25 years
  • Offer transparent, fully detailed pricing with no surprises

For you, this means:

  • Years of dependable, low-maintenance waterproof protection
  • Substantial savings compared to conventional re-roofing
  • Minimal disruption to everyday life and business operations throughout the area
  • Total peace of mind, supported by a written manufacturer warranty

By combining specialist installation techniques with manufacturer-backed warranties, we deliver dependable, future-proof waterproofing solutions that safeguard your property long after the work is complete.

FAQ

Frequently Asked Questions — Flat Roof Waterproofing Galway

Common questions from Galway property owners about our flat roof waterproofing services. For more general questions, visit our main FAQ page.

Do you provide flat roof waterproofing services across Galway?

Yes, we serve all of Galway city and county, including Salthill, Oranmore, Knocknacarra, Renmore, Moycullen, Athenry, Tuam, Loughrea, Ballinasloe, Barna, and surrounding areas. From residential flat roof extensions to large commercial buildings, our team covers the entire Galway region.

How quickly can you arrange a flat roof inspection in Galway?

We generally schedule inspections in the Galway area within 2-3 working days of your enquiry. For emergency leaks or weather-related damage, we offer priority callouts across Galway city and county.

What types of flat roofs do you waterproof in Galway?

We work on all flat roof types found throughout Galway — felt, bitumen, EPDM, TPO, fibreglass, concrete, and metal roofs. This includes home extensions, garages, apartment complexes, commercial premises, and industrial buildings across the county.

How much does flat roof waterproofing cost in Galway?

Pricing depends on roof size, current condition, and the waterproofing system required. We offer free, no-obligation on-site inspections and transparent quotations for all Galway properties. You will receive a detailed cost breakdown before any work begins — no hidden charges.

Can you repair my flat roof in Galway without replacing it entirely?

In the majority of cases, yes. Most flat roofs we treat across Galway are restored and reconditioned rather than fully replaced. Our liquid-applied systems bond over existing surfaces after thorough preparation, saving you the cost and disruption of a complete strip-out.

What warranty do you offer on flat roof waterproofing in Galway?

We provide manufacturer-backed warranties of up to 25 years on our flat roof waterproofing systems. The specific warranty period depends on the system specified for your Galway property, and full documentation is included with every completed project.

Do you handle commercial flat roofs in the Galway area?

Yes. We regularly waterproof commercial flat roofs across Galway, including offices, retail units, warehouses, and industrial premises in areas such as Ballybrit, Oranmore Business Park, and Galway city centre.

Which areas in Galway do you cover for flat roof services?

We cover all of Galway city and County Galway, including Salthill, Knocknacarra, Renmore, Oranmore, Moycullen, Barna, Athenry, Tuam, Loughrea, Ballinasloe, Clifden, Spiddal, Oughterard, Clarinbridge, Kinvara, Gort, Headford, and Craughwell. No location within County Galway is outside our service area.

Hi! Henry here. Need roof waterproofing?