Rated 9.33/10 ⭐⭐⭐⭐⭐
Flat Roof Installation & Repair
Family-run flat roof specialists serving North London and Hertfordshire since 1969. Free surveys, honest advice and no pressure sales.
Need urgent advice? Call us on 020 3903 9314
Family Run Since 1969
Fully Insured & NFRC Approved
Free Roof Surveys & Quotes
Fully Insured & Accredited
60+ Years Experience
Free Roof Surveys
First Class Flat Roof Installation & Repair
Flat roofs are a practical, versatile, and cost-effective choice for many properties, offering a modern aesthetic and efficient use of space. From flat roof construction and new installations to flat roof repair and replacement, our team brings over 60 years of family experience to every project.
We install and repair flat roofs across Harrow, Pinner, Ruislip, Northwood, Stanmore, Rickmansworth, Watford, Edgware, Hendon and Finchley.
We install and repair flat roofs across Harrow, Pinner, Ruislip, Northwood, Stanmore, Rickmansworth, Watford, Edgware, Hendon and Finchley.
- NFRC members and Grade 2 listed building approved roofers
- Free detailed roof survey with no obligation
- Itemised written quote with no hidden costs
- Premium materials & expert installation
- Workmanship guarantee included
100% free, no obligation
Get a Free Flat Roof Quote Today
Ready to take the next step? Get in touch with our team to arrange your free roof survey and receive a clear, no-obligation quote.
Fill in the form and we’ll call you back!
Fully Insured & Accredited
tailored flat roof solutions for every property
Flat Roof Solutions Tailored to Your Property
No two properties are the same, and we don't believe in a one-size-fits-all approach. We'll design a solution that suits your structure, style, and budget. We work with a wide range of materials including:
- Traditional felt roofing
- EPDM rubber roofing
- Fibreglass (GRP) roofing
- Leadwork and weatherproofing
- Single ply membrane systems
where we work
Flat Roof Installers Serving North West London
R F Mummery Roofing are experienced flat roof installers serving a wide area of North West London and the surrounding counties.
If you’re unsure whether we cover your location, just give us a call on 020 3903 9314 – we’re always happy to help.
Flat Roof Construction Specialists
The Benefits of a Flat Roof Survey
Not sure whether your flat roof needs a repair or a full replacement? A free roof survey can help by:
- Identifying and preventing costly leaks before they worsen
- Protecting the structural integrity of your roof
- Assessing the energy efficiency of your existing roof
- Identifying opportunities to improve drainage and weatherproofing
- Advising on whether a skylight or roof light installation is possible
- Recommending moss removal or gutter cleaning where needed
flat roof installation handled from start to finish
Our Flat Roof Installation Process
A clear, managed process from first contact to finished roof.
Free Roof Survey
We visit your property, and advise honestly on whether a repair or full roof replacement is the right solution.
Itemised quote
No hidden costs, no vague estimates. You'll know exactly what you're paying for and why.
Material Selection
We help you choose the right materials for your property, whether that's felt, EPDM rubber, fibreglass, or leadwork.
Expert Installation
Carried out to the highest standards by our experienced team.
What our clients say
Trusted by Homeowners Across North London
Highly rated on Checkatrade and backed by NFRC membership, you can book with complete confidence. Read real reviews from homeowners across North London.
“We needed help with a roofing problem and Mummerys were recommended to us. They were efficient, pleasant , punctual and did a great job. They told us of potential future problems and did a great job. Highly recommend them.”
Checkatrade review
WD7
"After storm damage Robert came very quickly to assess the damage...Work was carried out the following week . They worked really hard. Took all rubbish away leaving everywhere clean and tidy. Very happy with the work and would definitely use them again"
Checkatrade review
HA4
"RF Mummery listened to what we needed, and gave us a quote broken down into parts so we could decide what we needed / could afford...felt they were the most honest/reliable and did a great job - with a smile!"
Checkatrade review
HA7
"Rob and his team were excellent from the moment I left an answer phone message late at night. The work was carried out in a professional and tidy manner...I will not hesitate to use them in the future, if so needed.
Checkatrade review
WD7
"They were always on time, reliable and polite. The work was precise, quality and thorough. The quote was exact. They completed the work well and left everything tidy and were a pleasure to work with. I would happily recommend them to everyone."
Checkatrade review
HA7
Flat Roof FAQs
Everything you need to know before getting a flat roof quote.
Do you carry out flat roof repairs?
Yes. We carry out flat roof repairs on all types of property across Pinner and the surrounding areas. We'll always assess your roof honestly and advise whether a targeted repair or full flat roof replacement is the most cost-effective solution.
Do you offer flat roof replacement?
Yes. If your existing flat roof is beyond repair, we offer full flat roof replacement using high-grade modern materials. We'll always advise honestly on whether a repair or replacement is the right solution for your property before any work begins.
Are you experienced flat roof installers?
Yes. We have been installing flat roofs for over 60 years across Pinner, Ruislip, Harrow and the surrounding areas. As specialist flat roof installers, we work on everything from domestic extensions and garage roofs to commercial buildings.
What does flat roof construction involve?
Flat roof construction involves removing any existing roofing material, preparing the roof deck, and installing a new weatherproof membrane or felt system. We handle the entire process from start to finish, including supply of all materials, so you don't have to worry about a thing.
What materials do you use for flat roofs?
We work with a range of modern flat roofing materials including traditional felt, EPDM rubber, fibreglass (GRP), and leadwork. We'll advise on the best option for your property during your free roof survey.
Why is there moss or pooling water on my flat roof?
Moss, algae, and pooling water are common issues on flat roofs, usually caused by poor drainage or an ageing roof surface. We offer moss removal and drainage assessment as part of our maintenance services, and can advise on the best course of action during a free survey.
Do you install flat roofs on extensions and garages?
Yes, flat roofs are a popular choice for extensions, garage roofs, and outbuildings. We carry out flat roof construction, repair, and replacement on all property types and will tailor the solution to suit your specific requirements.
Will a new flat roof improve insulation?
Yes. Older flat roofs often have insufficient insulation, which can affect your home's energy efficiency. A new flat roof installed with modern materials can significantly improve heat retention and reduce energy costs.
Ready to Talk About Your Flat Roof?
Whether you have a question, need advice, or want to book a free roof survey, we're here to help. Fill in the form below and one of our team will be in touch shortly.