Commercial Flat Roofing
Large-scale flat roofing for commercial, industrial and retail buildings.
- Single-ply, built-up felt, GRP and liquid systems
- Minimal business disruption
- Fixed pricing with no hidden extras
Keeping Your Business Dry and Operational
A leaking commercial flat roof disrupts business operations, damages stock and equipment, and creates health and safety risks for employees and customers. Commercial flat roofs cover large areas and are subject to heavy foot traffic from maintenance access, plant equipment and drainage loads. They need specialist materials and installation techniques that go beyond residential flat roofing.
Radiant Roofing installs and repairs commercial flat roofs across Kent, Sussex and Surrey. We work with single-ply membranes, built-up felt, GRP fibreglass and liquid-applied systems on retail units, offices, warehouses, schools, churches and industrial premises. We plan our work to minimise disruption to your business and can carry out work in phases if required.
How It Works
Site Survey
We inspect the existing roof, assess the structure and recommend the most suitable system for your building, usage and budget.
Detailed Tender
You receive a comprehensive tender document covering specification, programme, access arrangements and price — no hidden extras.
Professional Installation
We install your chosen system with minimal disruption to business operations, phasing work where needed to keep areas operational.
Guarantee
All commercial flat roofing is backed by our workmanship guarantee plus manufacturer system warranties of up to 25 years.
Site Survey
We inspect the existing roof, assess the structure and recommend the most suitable system for your building, usage and budget.
Detailed Tender
You receive a comprehensive tender document covering specification, programme, access arrangements and price — no hidden extras.
Professional Installation
We install your chosen system with minimal disruption to business operations, phasing work where needed to keep areas operational.
Guarantee
All commercial flat roofing is backed by our workmanship guarantee plus manufacturer system warranties of up to 25 years.
What Our Commercial Flat Roofing Service Includes
We install, repair and maintain flat roofs on commercial buildings of all sizes. Our team is experienced in working on occupied premises with minimal disruption.
What Does Commercial Flat Roofing Cost?
Typical price range
£3000 – £50000
VAT may apply depending on the project
Factors that affect the price:
- 1Roof area (measured in square metres)
- 2System specification (single-ply, felt, GRP, liquid)
- 3Insulation and structural requirements
- 4Access, phasing and working hour restrictions
Commercial flat roofing is priced per square metre based on the system specification and site conditions. We provide detailed tender documents for all commercial projects. Contact us with your drawings or arrange a site survey for an accurate quotation.
What Our Customers Say
Verified Google ReviewsJane S.
Kent
They were very friendly, professional and polite and left the site immaculate at the end of the day. I would thoroughly recommend them to others. The work was carried out to a very high standard.
Peter B.
East Sussex
Excellent work, highly recommended! Very knowledgeable, by far the best roofing company we have ever used and super nice guys.
Sarah M.
Surrey
Radiant Roofing completed our roof repair quickly and professionally. Great communication throughout and a fantastic result.
Frequently Asked Questions
Commercial flat roofing is typically priced per square metre and varies widely based on system specification, roof size and site conditions. Small commercial roofs start from £3,000, while large industrial or retail roofs can run to £50,000 or more. We provide detailed tender documents based on a site survey.
Yes. We regularly carry out commercial roofing on occupied buildings. We plan work to minimise noise, dust and disruption, and can phase the project to keep areas operational. Weekend and out-of-hours working is available for businesses that cannot tolerate daytime disruption.
It depends on the building, usage and budget. Single-ply membranes are the most popular choice for large commercial flat roofs due to their speed of installation and long warranties. Built-up felt is cost-effective for industrial buildings. GRP is ideal for areas with foot traffic. We recommend the best system for your specific situation.
We cover Kent, East Sussex, West Sussex and Surrey. We regularly carry out commercial flat roofing in Tunbridge Wells, Crowborough, Sevenoaks, Tonbridge, Uckfield, Haywards Heath, East Grinstead and surrounding areas.
Yes. All commercial flat roofing is backed by our workmanship guarantee. Manufacturer system warranties of up to 25 years are also available depending on the system specified. We provide all warranty documentation on completion.
Contact Us!
Get in touch with us!
Looking for a free quote? Just fill in the form below, and we'll take care of the rest!
Contact Information:
Mobile (24/7): 07753 165 005
Landline (Office Hours): 01892 356 967
Email: contact@radiantroofing.co.uk
Head Office:
Address:
Alpha House
Crowborough Hill
Crowborough
TN6 2EG
Opening Hours:
Monday to Friday: 7:30 am – 6:00 pm
Saturday: 7:30 am – 12:00 pm
Sunday: Closed (mobile still available)
Our Mobile and Email is available 24/7
