Phone: 01375511420 l Email: contact@prclimited.co.uk
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Trusted by councils, housing providers & commercial estates across London, Essex & Kent - accredited and compliant.
Commercial Roof Leak Repair Services
Our commercial roof leak repair service identifies the source of water ingress and delivers effective, long-lasting repairs for housing providers, managing agents, commercial property owners and public sector organisations. We investigate leaks across flat, pitched and lead roofs, providing clear recommendations and durable waterproofing solutions.
Commercial leak investigations & targeted repairs
Flat roof waterproofing & membrane repairs
Pitched roof, flashing & gutter repairs
Emergency leak response & storm damage repairs
Common Causes of Roof Leaks
Leaks can appear suddenly or build up over time. We diagnose and repair all major causes of water ingress on public, commercial and residential roofs.
Failed flat roof waterproofing
Cracked, slipped or missing tiles
Blocked gutters and outlets
Damaged flashing around chimneys & skylights
Leak Detection & Testing
Our trained team carry out leak investigations using visual inspections, moisture readings, dye testing and drone checks. We identify the exact point of water entry to prevent recurring issues and unnecessary costs.
Accurate leak tracing & moisture surveys
Drone inspections available
Flat and pitched roof leak testing
Clear reporting with repair recommendations
Safe, Compliant Repairs for Every Roof Type
Where hot works are required, we follow full NFRC Safe-to-Torch guidance. For sensitive sites such as schools, hospitals or timber structures, we use flame-free liquid systems and cold processes to ensure full safety compliance.
Fire-safe methods used where necessary
NFRC-trained installers
Solutions balancing safety & durability
Think You Have a Roof Leak? Use Our Quick Diagnosis Tool
Answer a few simple questions and we’ll tell you the most likely cause - plus what to do next.
If you’d like us to confirm the issue on-site, you can request a free leak assessment at the end.
For urgent leaks:
Call our office - 01375 511420
Start by telling us where the issue is happening:
Areas We Cover
Based in Essex, we deliver commercial roofing projects across London, Essex, Kent and the wider South East, travelling further for larger projects and framework works.
Central London
South London
Croydon
West London
Hackney
Kensington & Chelsea
East London
Islington
Canterbury
North London
Greenwich
Dartford
Guarantee & Compliance
Our roof leak repairs are carried out to industry standards, with appropriate guarantees and compliance documentation provided for the works completed.
Other Services We Provide
What are the most common causes of a leaking roof?
The most frequent causes include slipped or cracked tiles, failed flat roof membranes, blocked gutters or outlets, damaged flashing, and general wear over time. We identify the exact source using leak detection methods.
Do I need a full roof replacement if I have a leak?
Not always. Many leaks can be repaired without replacing the entire roof. Once we inspect the roof, we confirm whether a localised repair, membrane patch, flashing fix or gutter clearance is sufficient.
Are leaking roof repairs guaranteed?
Yes - our repairs follow manufacturer and NFRC best practice. Where applicable, we can provide guarantee options depending on the repair method and system used.
Can you detect the exact location of a roof leak?
Yes - we use visual inspections, moisture readings, dye testing and drone checks where needed to pinpoint the source of the leak accurately.
Are leaks caused by condensation instead of a roofing issue?
Yes, condensation can mimic a leak - especially in lofts with poor ventilation. If the issue is non-roof-related, we’ll confirm this and advise on ventilation improvements.