Client: Private Homeowner
Location: London
Sector: Residential Roofing
Service Type: Flat Roof Replacement | Insulation | Waterproofing
Duration: 1 Week
Completion Date: 2025
Project Overview
Bigness Group was contracted to carry out a flat roof replacement for a residential property in London after extensive water damage and insulation failure were discovered.
Our roofing specialists conducted a complete inspection, removed the damaged roof layers, and installed a new high-performance EPDM rubber membrane system, ensuring long-term waterproof protection and improved energy efficiency.
This project required precision, timing, and care due to limited access and the property’s riverside location. Despite these challenges, our team delivered a seamless result — leak-free, durable, and aesthetically refined.
Project Objectives
- Replace the deteriorated flat roof with a durable EPDM system.
- Install high-quality insulation for enhanced thermal performance.
- Reinforce waterproofing and prevent future leaks.
- Complete the project efficiently with minimal disruption.
Scope of Works
- Roof inspection and damage assessment
- Full removal of old materials and insulation
- Installation of new thermal insulation boards
- Application of plywood sheeting and vapour barrier
- Fitting of EPDM rubber membrane roofing system
- Edge finishing, sealing, and site clean-up
Challenges & Solutions
Challenge 1 – Weather Exposure
Unexpected rainfall risked delays during removal and insulation work.
Solution: A full temporary cover system (blue tarp protection) was installed to safeguard against water ingress during construction.
Challenge 2 – Limited Roof Access
The narrow space between pitched roofs restricted movement.
Solution: Work was performed in staged sections with precision scaffolding and safety anchors to maintain efficiency.
Challenge 3 – Thermal Bridging
The old roof lacked insulation continuity.
Solution: The new installation incorporated continuous insulation layers and sealed vapour barriers for optimal energy efficiency.
Results
✅ New EPDM flat roof system with 25-year life expectancy
✅ Enhanced waterproofing and insulation performance
✅ Clean, durable finish blending with existing architecture
✅ Fully compliant with UK roofing standards
Progress Highlights:
- Roof strip-out and insulation
- Plywood boarding and waterproof membrane installation
- Final EPDM roof finish
💬 Client Testimonial
“The Bigness roofing team was fast, professional, and reliable. They protected our home throughout the work and left the site spotless. The new roof looks great and performs perfectly — highly recommend.”
Why Choose Bigness Group
- Expert Flat Roofing Contractors in London
- Specialists in EPDM, GRP, and felt systems
- Full insulation, waterproofing, and finishing service
- Reliable scheduling and guaranteed workmanship
- Transparent pricing and certified installation
When it comes to roof repairs and replacements, Bigness Group combines craftsmanship with cutting-edge materials to protect your property for decades to come.









