Business Details
50+ Years
experience
Emergency
services
Expert Roofing Solutions in London Since 1969
Established in 1969, J & J Asphalt Roofing is a family-run roofing business serving London and surrounding counties. Specialising in flat roofing solutions including asphalt, single ply, liquid plastics, and EPDM, we combine decades of expertise with manufacturer-approved installations. Our team handles everything from minor repairs to complete roof renewals, serving both residential and commercial clients. We are trusted partners for councils, NHS, and major corporations, offering transparent quotes and insurance-backed work.With electronic fault detection technology and comprehensive insurance coverage, we prioritise reliability and customer satisfaction. Our accreditations with leading material suppliers ensure quality installations, while flexible inspection options accommodate client needs. With nearly 50 years of experience, we remain committed to delivering durable, cost-effective roofing solutions.
Services
Asphalt Roofing
Single Ply Installation
Liquid Roofing
EPDM Rubber Membranes
Roof Repairs
Commercial Roofing
Insurance Work
Electronic Leak Detection
Green Roof Systems
Tanking Basements
Details
- Year established: 1969
Highlights and features
- We have 50 years of specialist roofing experience in London
- We are approved installers for leading roofing material manufacturers
- We work with major commercial clients including NHS and London councils
- We provide clear itemised quotes with no hidden costs
- We use electronic fault detection technology for precision repairs
Associations and certifications
- Sika Trocal
- Andersons Icopal
- Flex-R
- Hertalan EPDM
- Desmopol
What people say
Impressed with service
Peace of mind
Professional work
No hidden costs
Durable solutions
Services
Asphalt Roofing
Specialist installation of mastic asphalt 988T for durable flat roofs, car parks, and balconies. Our certified team ensures watertight solutions with long-term performance. Ideal for both new builds and refurbishments requiring heavy-duty protection.
Single Ply Systems
Approved installation of Sika Trocal, Fatra, and Rhepanol FK single ply membranes. Flame-free application suitable for commercial properties needing lightweight, energy-efficient roofing with manufacturer guarantees.
Liquid Roofing
Application of Desmopol, Europolymers, and SIG FIX-R liquid systems. Cold-applied coatings create seamless waterproof membranes for new or existing roofs, compatible with various substrates and offering rapid curing times.
Roof Repairs
Urgent leak repairs and fault rectification using electronic detection technology. We provide temporary solutions and permanent fixes with photographic documentation for insurance claims, available across London.
Commercial Roofing
Contractor partnerships for council projects and major corporations. We deliver large-scale installations and maintenance for NHS, London Underground, and retail chains, meeting strict compliance standards.
Questions
What roofing systems do you specialise in?
We specialise in asphalt, single ply PVC, liquid plastics, EPDM rubber, and GRP systems for both residential and commercial properties.
Do you handle insurance work?
Yes, we regularly complete insurance claims with photographic documentation and itemised quotes for easy approval.
Can you repair existing roofs?
We offer repairs from minor leaks to full renewals using electronic fault detection and manufacturer-approved materials.
Are you insured?
We have full coverage including £10M employers' liability and £1M public liability insurance, available on request.
What areas do you cover?
We operate across London and surrounding counties including Hertfordshire, Essex, Surrey, and Kent.
