Rated 9.33/10 ⭐⭐⭐⭐⭐
New Roof Installation & Roof Replacement inNorth London
Family-run roofers 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
Expert new roof installation services
A new roof is one of the biggest investments you'll make in your home. That's why we project manage the entire process, from first survey through to final inspection, so you never have to worry.
Whether you're replacing an ageing roof or building a new one from scratch, our team has the experience and materials to do it right.
We provide new roof installation and roof replacement services across Harrow, Pinner, Ruislip, Northwood, Stanmore, Watford, Rickmansworth, Edgware, Hendon, Finchley and surrounding areas.
We provide new roof installation and roof replacement services across Harrow, Pinner, Ruislip, Northwood, Stanmore, Watford, Rickmansworth, Edgware, Hendon, Finchley and surrounding areas.
- 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
Book your FREE Roof Survey
Our specialists will assess your roof, identify any issues, and give you a clear, itemised quote. No hard sell and no hidden fees. Fill in the form and we’ll call you back!
Fully Insured & Accredited
tailored new roof solutions for every property
Do You Need a New Roof?
These are the most common signs that your roof needs professional attention. If you notice any of these, book a free survey - early action saves money.
- Cracked or missing tilesDamaged tiles let water penetrate the roof deck, leading to leaks, mould, and structural damage if left untreated.
- Water stains on ceilingsBrown or yellow marks on your ceiling are a clear sign of an active or past roof leak that needs urgent investigation.
- Roof over 20 years oldMost roofs have a lifespan of 20–30 years. If yours is approaching this age, a survey will reveal whether it needs repair or full replacement.
- Sagging roof deck or uneven rooflineA visibly sagging or uneven roof is a serious structural warning sign indicating moisture damage or compromised supports beneath.
- Dark granules in your guttersIf you notice dark granules in your gutters, your roof tiles are degrading, a sign of significant wear that shortens roof life.
- Rising energy billsPoor roof insulation from damage or age can cause heat loss, significantly increasing your heating costs during winter months.
Expert Leadwork as Standard
Leadwork Built to Last
Lead has been used in roofing for centuries, and for good reason. It remains one of the most durable, versatile, and weather-resistant materials available.
As part of our new roof installations, we carry out all associated leadwork to the highest standard, including lead flashings, valleys, gutters, parapet details, and dormer cheeks. Properly installed leadwork is essential for preventing water ingress at the most vulnerable points of your roof where water is most likely to penetrate. Lead working is a craft we've refined over decades, and we take as much pride in the quality of our leadwork as we do in the rest of the installation.
Speak to our team →As part of our new roof installations, we carry out all associated leadwork to the highest standard, including lead flashings, valleys, gutters, parapet details, and dormer cheeks. Properly installed leadwork is essential for preventing water ingress at the most vulnerable points of your roof where water is most likely to penetrate. Lead working is a craft we've refined over decades, and we take as much pride in the quality of our leadwork as we do in the rest of the installation.
Roof Replacement Specialists
If your existing roof has reached the end of its lifespan, our roof replacement service provides a complete solution. We remove old roofing materials, inspect the roof structure and install a brand-new roofing system designed to protect your property for decades.
Speak to our team →Whether you're replacing an old tiled roof, upgrading a slate roof, or re-roofing a period property, we'll help you choose the right materials to suit your home, budget, and style. As Grade II listed building approved roofers and NFRC members, we're trusted to work on everything from modern family homes to heritage properties.
If you're unsure whether your roof needs replacing, book a free roof survey and we'll provide a clear, professional assessment with no obligation and no pressure to proceed.
where we work
New Roof Installation Across North West London & Hertfordshire
Based in Pinner, we carry out new roof installations across a wide area of North West London and the surrounding counties. Whether you’re in a neighbouring suburb or a little further afield, our team is equipped to help.
If you’re unsure whether we cover your location, just give us a call on 020 3903 9314 – we’re always happy to help.
new roof installation handled from start to finish
Our New Roof Installation Process
A clear, managed process from first contact to finished roof.
Free Roof Survey
We visit your property and assess exactly what's needed, at no cost to you.
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, style, and budget.
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
New Roof Installation FAQs
Common questions about new roof costs, materials and installation
Do I need a new roof or just a repair?
Not every roofing problem requires a full replacement. We'll carry out a free roof survey and give you an honest assessment; we'll never recommend a new roof unless it's genuinely the right solution.
What materials do you use?
We work with slate, tile, asphalt, shingle, and metal roofing among others. We'll help you choose the best option for your property during your free survey.
Do you guarantee your work?
Yes, all new roof installations are completed using high-grade materials and proven techniques for long-term reliability.
What areas do you cover for new roof installation?
We're based in Pinner and serve a wide range of surrounding areas including Ruislip, Hendon, Rickmansworth, Stanmore and Hampstead. Get in touch and we'll confirm whether we cover your location.
How long does a new roof installation take?
Most residential installations take between a few days to a couple of weeks depending on the size and complexity of the project. We'll give you a clear timeline before work begins.
How long will a new roof last?
A properly installed roof using high-grade materials should last several decades. Slate roofs in particular can last 80–100 years with proper maintenance.
Are you approved to work on listed buildings?
Yes. We are Grade 2 listed building approved, giving us the specialist knowledge to work on heritage and historic properties.
Do you offer free roof surveys?
Yes, we offer free roof surveys to all new customers. We'll visit your property, assess your roof, and give you an honest recommendation before you commit to anything.
Ready to Talk About Your New 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.