Professional
Flat Roofing
Modern flat roofing systems are highly durable, low-maintenance, and energy-efficient. Highlight Roofing & Building Ltd installs and repairs all major flat roofing systems — GRP fibreglass, EPDM rubber, felt, and liquid rubber — across Southampton and Hampshire.We bring decades of experience directly to your doorstep, ensuring every flat roofing job is completed to the highest local standards.
Why You Need Professional Flat Roofing
Ignoring early warning signs can lead to severe structural damage. We intervene quickly to save you money in the long run.
Immediate Benefits
!Common Warning Signs
- Pooling water or poor drainage on flat surface
- Bubbling, splitting, or cracking in the membrane
- Damp patches on the ceiling below the flat roof
- Felt pulling away from upstands or edges
- Roof over 15 years old without replacement
- New extension or outbuilding requiring a flat roof
The Highlight Roofing And Building Difference
We do not cut corners. Our reputation in Hampshire is built on honesty, immense quality, and putting our customers first.
GRP Fibreglass Specialists
GRP is our most popular system — durable, seamless, and maintenance-free for 25+ years when correctly installed.
EPDM Rubber Systems
Single-ply EPDM rubber is ideal for larger flat roof areas, offering excellent flexibility and a 50+ year lifespan.
Liquid Rubber Solutions
Liquid-applied membranes allow us to waterproof complex shapes and details that sheet systems cannot accommodate.
Fully Insured & Guaranteed
All our work is covered by full public liability insurance and comes with our ironclad quality guarantee. We don't consider the job done until you are 100% satisfied.
homeowners in Hampshire.
Our Flat Roofing Method
A systematic, transparent, and highly professional approach to every restoration job we do.
Survey & System Selection
We assess the substrate, drainage, and access to recommend the most appropriate flat roofing system for your project.
Deck Preparation
The existing deck is checked for movement, rot, or delamination. Any defective sections are repaired or replaced.
Insulation Board
Where thermal performance is required, rigid insulation board is fixed to the deck before the waterproofing layer.
Waterproof Membrane
The chosen system (GRP, EPDM, felt, or liquid) is applied in accordance with the manufacturer's specification and BS 6229.
Upstands & Detailing
All upstands, abutments, outlets, and edges are dressed and sealed — the most critical elements of any flat roof.
Drainage & Outlets
Outlets, gutters, and downpipes are checked, cleared, or replaced to ensure efficient drainage of the new surface.
Uncompromising Quality
We believe a job well done starts with the absolute best supplies and adhering to strict technical build codes.
Premium Materials
GRP Fibreglass
Glass-reinforced polyester resin applied as a liquid and cured to form a seamless, monolithic waterproof layer. 25+ year guarantee.
EPDM Rubber Membrane
Single-ply ethylene propylene diene monomer rubber sheet — highly flexible, UV-stable, and extremely long-lasting.
Liquid Rubber (Polyurethane)
Cold-applied, flexible waterproofing for complex details, upstands, and refurbishment over existing membranes.
Technical Standards
All flat roof work follows BS 6229 code of practice for flat roofs
GRP systems installed to NFRC and GRP system manufacturer specification
Minimum 1:80 fall designed into new flat roof decks
Upstands minimum 150mm above finished roof level
Our Safety Protocols
We never compromise on safety. Here's how we protect you, your property, and our crew during every flat roofing intervention.
Edge Protection
All flat roofs are fitted with guard rails or Heras fencing at the perimeter during work.
Resin Fume Control
GRP installation is carried out with full PPE and adequate ventilation to manage styrene fumes.
Hot Works Permit
Any torch-applied felt work is covered by a hot works permit and fire watch procedures.
Structural Loading
The deck's structural capacity is confirmed before loading with insulation and materials.
Pricing Transparency
We believe in providing honest, upfront quotes with absolutely zero hidden fees. While every single project is unique, here are the primary variables we look at when pricing your Flat Roofing job.
Get Your Exact QuoteRoof Area (m²)
Flat roofing is priced per square metre. We measure precisely and provide a clear rate for the chosen system.
System Type
Felt is the most economical option. GRP and EPDM carry premiums but offer significantly longer service lives.
Deck Condition
If the existing deck needs replacing due to rot or delamination, this is an additional cost quoted transparently.
Insulation Specification
Adding or upgrading insulation improves energy performance but adds to material and labour costs.
Your Journey with Us
Getting started is easy. From the first click to the final handshake, we ensure a smooth flow.
Enquire
Tell us about your flat roof — size, current condition, and what you're looking to achieve.
Survey & Quote
We inspect the roof, advise on the best system, and provide a detailed written quote.
Installation
Work is completed efficiently, weather permitting, with full protection of the property.
Guarantee
A written guarantee for the membrane and our workmanship is provided on completion.
Our Recent Flat Roofing Work
Every photo below is from a real flat roofing job we have completed across Southampton and Hampshire.
Aftercare Guide
To maximize the lifespan of your flat roofing, we recommend following these simple maintenance tips after we leave:
- Inspect flat roof outlets and gutters every autumn and spring to keep them clear
- Check upstand flashings annually for any signs of lifting or cracking
- Avoid walking on flat roofs unnecessarily — use walkway pads if access is needed
- GRP and EPDM roofs are largely maintenance-free but should be visually checked annually
- Report any pooling water promptly — standing water accelerates membrane degradation
Trusted Locally
We are extremely proud to serve communities across Southampton and Hampshire. Whether you're right in the city or nestled in a village, our team can reach you.
Flat Roofing Questions
Common questions specifically about our Flat Roofing process.
Let's Get Started
Stop worrying about your property. Reach out today to schedule your professional Flat Roofing service and receive a free quote without any obligation.