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GAP

Building Envelope Specialists

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Key Services

Expert advice and building services.

About GAP Roofing Services

GAP Roofing Services Ltd is a leading leak‑detection and reactive maintenance specialist, providing fast, reliable support to property managers and building owners across the North West. Our teams service and maintain more than 200 roofs each year, delivering accurate diagnostics, high‑quality repairs, and dependable long‑term solutions.

We are trusted by many of the region’s major management companies for our technical expertise, rapid response times, and consistent workmanship. Our services include full roof inspections, detailed condition reports, and defect identification using advanced leak‑detection methods. Whether attending emergency call‑outs or carrying out planned maintenance, we ensure every roof is made safe, watertight, and compliant.

Building Envelope Solutions

Roof Surveys

We provide comprehensive roof surveys supported by detailed reports, combining drone imagery, thermal imaging and thorough visual inspection. Our surveys accurately identify defects, water ingress, heat loss and overall roof condition, giving clients clear evidence‑based recommendations for maintenance, repair or replacement. This approach delivers a safe, efficient and highly reliable assessment for all roof types.

Reactive Maintenance

Our reactive maintenance service provides fast, reliable support for urgent roofing issues across the North West. We respond quickly to leaks, damage and weather‑related failures, delivering efficient call‑outs and on‑the‑spot repairs to keep buildings safe and watertight. With expert diagnostics and fully equipped teams, we restore roof performance, prevent further deterioration and minimise disruption for clients and tenants.

Roof Refurbishment

Our refurbishment service restores ageing or deteriorated roof systems to a safe, reliable and watertight condition. We assess the existing structure, identify defects and upgrade key components using modern materials and installation methods. From overlay systems to full strip‑and‑replace solutions, we deliver cost‑effective refurbishment options that extend roof lifespan, improve performance and reduce long‑term maintenance demands.

Our Services

Recent Projects

GAP Roofing are building envelope specialists in Greater Manchester with more than 22 years experience in commercial roofing, leak detection and building envelope repairs.


Featured Project

Halton Mills - Slate Roof Refurbishment

Halton Mills - Slate Roof Refurbishment

Our track record

Trusted by top managing agents across the north west

We provide reactive and planned maintenance works for all aspects of the building envelope.

Specialist Reactive Services
Reactive Mainatenace
Full refurbishment solutions
Contract Roofing
FIRAS approved passive fire protection
Fire Stopping
Cladding services
Cladding Remediation
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