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Flat Roofing & Waterproofing

Whether you need a new flat roof installation for an extension or repairs to an existing system that's showing signs of wear, we provide expert installation and maintenance tailored to your property's requirements. With extensive experience in modern flat roofing materials and waterproofing techniques, we deliver lasting roofing solutions.

Need expert flat roofing advice? Contact us on 0800 206 1425 or 07447 780327 to discuss your requirements across Ruislip and all surrounding London areas.

Flat Roofing & Waterproofing

At Holbrook Roofing and Building Ltd, our flat roofing services cater to properties with different structural requirements and usage patterns. We provide practical advice about the most suitable flat roofing system for your property, considering factors like building usage, access requirements, and long-term maintenance needs.

All our flat roofing installations come with comprehensive warranties, reflecting our confidence in both materials and workmanship. Our qualified surveyors assess each project individually, ensuring the chosen system meets your property's specific requirements.


New Flat Roof Installations

For new builds, extensions, and complete roof replacements, our flat roofing installations include:

  • EPDM rubber membrane systems
  • GRP fibreglass installations
  • Modified bitumen felt systems
  • Single-ply membrane applications
  • Insulation and thermal upgrades
  • Drainage design and installation
  • Parapet and upstand detailing

We select the most appropriate flat roofing material based on your specific requirements, building usage, and budget. Our installations incorporate proper falls and drainage to prevent water pooling and ensure longevity.


Flat Roof Repairs & Maintenance

Prompt maintenance extends flat roof lifespan significantly. Our repair services include:

  • Leak detection and waterproof repairs
  • Membrane patching and reinforcement
  • Joint and seam restoration
  • Drainage clearance and repairs
  • Blister and bubble treatment
  • Flashing and edge detail repairs
  • Preventive maintenance programmes

We understand that flat roof leaks require immediate attention to prevent internal damage. Our emergency repair service provides rapid response to urgent waterproofing issues, with permanent solutions scheduled to prevent recurrence.


Specialist Waterproofing Solutions

For challenging waterproofing requirements, we also provide:

  • Balcony and terrace waterproofing
  • Green roof preparation and installation
  • Walkable flat roof systems
  • Commercial and industrial applications
  • Liquid-applied waterproof coatings
  • Roof garden drainage systems
  • Fire-rated and specialist membranes

These advanced waterproofing solutions address specific challenges such as foot traffic, planted areas, or extreme weather exposure. We ensure all systems meet relevant building standards and provide reliable long-term performance.


FAQs

The best flat roofing material depends on your specific requirements, budget, and building usage. EPDM rubber membranes offer excellent durability and are ideal for most residential applications. GRP fibreglass provides a seamless, hard-wearing surface perfect for areas with foot traffic. Traditional felt systems remain cost-effective for basic applications. During our survey, we assess factors like roof size, access requirements, and intended use to recommend the most suitable system for your property and circumstances.
Flat roof lifespan varies significantly depending on the material and installation quality. EPDM rubber systems typically last 20-25 years, whilst GRP fibreglass can last 25-30 years with proper maintenance. Traditional felt systems generally last 10-15 years. Regular maintenance, proper drainage, and prompt repair of minor issues significantly extend any flat roof's lifespan. Our installations come with comprehensive warranties, and we provide maintenance programmes to help maximise your investment.
Flat roof leaks commonly result from membrane deterioration, poor drainage causing water pooling, damaged joints or seams, and inadequate installation around upstands or penetrations. Blocked drainage can cause water to pool and eventually find weak points in the membrane. Weather extremes, foot traffic, and age all contribute to membrane breakdown. Our leak detection service identifies the source quickly, and our technical surveys help prevent future issues by addressing underlying causes rather than just symptoms.
Yes, most flat roofing materials can be installed in winter, though some systems have temperature limitations. EPDM rubber and some single-ply membranes can be installed in most winter conditions. However, some adhesive systems require minimum temperatures for proper curing. We plan installations around weather forecasts and use appropriate materials and techniques for winter conditions. Emergency repairs are available year-round, with temporary weatherproofing solutions when permanent installation must wait for suitable conditions.
Flat Roofing Specialists

Professional Flat Roofing & Waterproofing

Specialist flat roofing installations and waterproofing solutions throughout North West London, with comprehensive warranties and emergency repair service.

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