- Source checked
- 25 Jun 2026
Public evidence profile · Checked June 2026
Harrow Roofing & Building Limited
Credentials & registries
2 credentials shown
Trust Score
64out of 100
- 196 reviews across 3 review sources, rated 4.9 where a rating is published
- 2 credentials shown
Newest review April 2025
Worth checking: NFRC Competent Person Scheme (CompetentRoofer)
How this score is worked out
Rating4.9 / 5
Review volume196
Independent sources3 independent public sources
Credentials2 credentials shown
How this score is made up
What customers say45 of 60
Independent checks9.9 of 30
Track record9.5 of 10
See the independent checks
- Licences and credentials1.4 of 10.3
- Ways to reach them3.4 of 3.4
- Reviewed on more than one site5.1 of 5.1
- Registered company details0 of 5.1
- Photos of their work0 of 4.3
- Industry recognition0 of 1.7
Missing evidence lowers the score because we can't check it. It doesn't mean it doesn't exist. Claiming a profile never changes the score. Evidence context, not a guarantee of workmanship.
Credentials and associations
2Credentials and memberships
These credentials and memberships are attributed to named public sources. Check the source before relying on them.
- Source checked
- 26 Jun 2026
From customer reviews
What customers consistently say
Recurring themes from 150 customer reviews across 2 review sources. Analysis updated 11 Jul 2026.
“Very easy to deal with all round, worked carried out to high standard” · Checkatrade, 5 Feb 2025
“Job was completed to a great standard with good communication and endless patience on my side.” · Checkatrade, 5 Sept 2024
“Job was done to a high standard.” · TrustATrader, 1 May 2023
“I called Ryan and he came round exactly when he said he would” · Checkatrade, 4 Apr 2022
“The guys were always punctual ,accommodating, reliable and considerate throughout that time.” · Checkatrade, 4 Mar 2022
“Ryan was extremely reliable, turning up to quote and start the work exactly when he said he would.” · Checkatrade, 28 Nov 2019
“Great communication from start to finish.” · Checkatrade, 1 Aug 2024
“Really good customer service the whole way through!” · Checkatrade, 3 Jul 2024
“They responded to all my questions and calls .” · Checkatrade, 4 Mar 2022
Source-listed gallery
13 photosPhotos listed on Which? Trusted Traders
These sources do not label every image as completed work. The gallery may include projects, people, logos or certificates, so it does not count as completed-work evidence.
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From Which? Trusted Traders
Opening hours
The hours this business publishes online, handy for knowing when to call. Confirm before you set off.
- Monday–Friday
- 7:30am–4:30pm
Reviews · public evidence
What customers say
These reviews are published independently on the named public sources below, not testimonials this business chose to show. We bring them together and link each one back to where it appeared, so you can open the source and read it yourself.
4.9out of 5
How Checkatrade customers rate them (out of 5)
Reliability5.0
Communication5.0
Quality of work5.0
Customers often mention
Where these reviews are published
- Checkatrade120 reviews · 4.9 avg
- TrustATrader14 reviews · 5.0 avg
- Which? Trusted Traders62 reviews
Highlights
“We had an emergency during a storm when part of our lead roof pulled up. They were incredibly responsive - someone was out within a couple of hours. The guys were great, got the job done quickly, professional, knowledgeable and offered to be back round if needed. Really impressed with the service and grateful for their quick response. Highly recommend.”
“Very easy to deal with, professional service”
“Very easy to deal with all round, worked carried out to high standard”
Detailed reviews
These are the individual reviews we hold for Harrow Roofing & Building Limited, including the highlights above. The 196 headline total is the review volume reported across public review sources.
Customer recommends this business
Flat roof felt work
I recently used Harrow Roofing for a flat roof in Ruislip. 3M X 7M. Ryan came to site and quoted quickly, after I confirmed the price a date was booked in. Darren and the lads did a quality job. Finding good roofers is extremely hard these days. The team were polite, clean and got the job done to a high standard. Highly recommended.
Work completed:
Scores listed by Which? Trusted Traders
- Customer Service
- 5 / 5
- Quality
- 5 / 5
- Value
- 5 / 5
Customer recommends this business
Flat roof in Northwood Hills
Ryan and his team re-roofed a garage and a section of the house to the rear. The finished roofs are to a very high standard. His team of very skilled roofers turned-up on the day agreed, got on with it, finished it on the date agreed all at a very reasonable cost. Our client is very happy and we would have no hesitation in recommending Harrow Roofing to our clients, family and friends.
Scores listed by Which? Trusted Traders
- Customer Service
- 5 / 5
- Quality
- 5 / 5
- Value
- 5 / 5
Customer recommends this business
Good job done very professionally
Firstly Ryan was very patient with me because I had previously arranged to have my roof renewed but had to postpone twice. Ryan and the team did the work on time and on budget. Very pleased. Special praise to Richard.
Work completed:
Scores listed by Which? Trusted Traders
- Customer Service
- 5 / 5
- Quality
- 5 / 5
- Value
- 5 / 5
Customer recommends this business
Professional attentive company
I employed them to tile a new loft conversion, I am a building company owner (Arch Builders) and very particular about the work I employ trades to do. I was very pleased with the roof, they arrived on time each day and worked in a very professional manner, listening and actioning any questions I had, my customers are very pleased too
Work completed:
Scores listed by Which? Trusted Traders
- Customer Service
- 5 / 5
- Quality
- 5 / 5
- Value
- 5 / 5
Customer recommends this business
Professional, reliable and high quality work
Ryan and team were professional and reliable from start to finish. I got a new roof competed on time, at the agreed price and no issues since completion. Would highly recommend.
Work completed:
Scores listed by Which? Trusted Traders
- Customer Service
- 5 / 5
- Quality
- 5 / 5
- Value
- 4 / 5
Read the other 10 detailed reviews on this pageShow fewer reviews
Customer recommends this business
Great job! Re roof completed on conservation area
The team at Harrow roofing & building were great with the hands on job, my re-roof looks fantastic, especially as I’m in a conservation area and the tiles (Lifestiles, Ashbury plain - Woburn) are spot on. Very happy with my choice. I also received a 10 year guarantee of the works, as expected as NRFC associated. Thanks so much for the high standard and to the team completing with a smile on their faces; would use the team again in a heart beat!
Work completed:
Scores listed by Which? Trusted Traders
- Customer Service
- 5 / 5
- Quality
- 5 / 5
- Value
- 5 / 5
Customer recommends this business
Great work
Ryan and his team have carried many roofing Jobs for me on extensions and loft conversions. Most recently installing a new zinc roof to the front of a property, transforming the look and reinstating an original feature. Would always recommend Ryan for roofing jobs
Work completed:
Scores listed by Which? Trusted Traders
- Customer Service
- 5 / 5
- Quality
- 5 / 5
- Value
- 5 / 5
Customer recommends this business
Very happy with our new roof.
We are delighted with our new roof, gutters, and associated insulation upgrade, which has just been completed by Harrow Roofing and Building. We have an old character property and wanted the new roof to look like the old one and be in keeping with the property. Ryan and the on-site team were a pleasure to work with and made sure we got exactly what we wanted. They were courteous and always left the site clean and tidy at the end of the day. We would gladly recommend them.
Work completed:
Scores listed by Which? Trusted Traders
- Customer Service
- 5 / 5
- Quality
- 5 / 5
- Value
- 5 / 5
Customer recommends this business
Utter Professionalism
It is with great pleasure that I offer you and your team this testimonial for your amazing service. Not only are my team impressed and grateful with the quality of your workmanship, but I am also genuinely thankful for the care and professionalism from all at Harrow Roofing and Building. Your back-office engagement is as professional as your workmanship is accomplished. My office had sadly suffered some opportunist theft and damage to our roof, which only added to the existing poor quality of the current structure. The unfortunate situation, if left unattended could have gone on to cause further property damage, amounting to a need for significant restoration. Ryan was kind enough to assess the damage in a timely manner and presented a range of options to suit a variety of budgets and levels of reconstruction. His ultimate solution went beyond the simple restoration of the roof, by being mindful of the location, access, leasehold arrangements, future protection, and other factors to provide a long-term, and cost-effective, resolution. Ryan’s genuine care was absolutely evident in his deliberation and ongoing engagement. Ultimately the end product was perfect for us, making our roof better protected and less desirable to further theft. I therefore have absolutely no reservations in recommending Harrow Roofing and Building for their excellent, thoughtful service.
Work completed:
Scores listed by Which? Trusted Traders
- Customer Service
- 5 / 5
- Quality
- 5 / 5
- Value
- 5 / 5
Customer recommends this business
Replacement of front gutters and fascia
Thank you Darren and Tyler for doing a great job to my front gutters and fascia . You took your time to do the job carefully and efficiently ..I'm sure it will last and last and for clearing everything up afterwards . I would use this firm again if I have need to !!!
Work completed:
Scores listed by Which? Trusted Traders
- Customer Service
- 5 / 5
- Quality
- 5 / 5
- Value
- 5 / 5
Customer recommends this business
Excellent
Can not recommend highly enough! Competitive in price, reliable and excellent work carried out. Communication was great, always showed up on time and were really tidy workers. Really recommend and will be using again 100%
Work completed:
Scores listed by Which? Trusted Traders
- Customer Service
- 5 / 5
- Quality
- 5 / 5
- Value
- 5 / 5
Customer recommends this business
Great Work - Highly Recommend!
I used Harrow Roofing & Building for roof and gutter repairs and was really happy with the service. They showed up on time, were professional, and kept everything clean and tidy. They did a great job, charged exactly what they quoted, and the price was fair too. I definitely recommend them!
Work completed:
Scores listed by Which? Trusted Traders
- Customer Service
- 5 / 5
- Quality
- 5 / 5
- Value
- 5 / 5
Customer recommends this business
Flat roof sofit and fascia’s house decoration
Harrow roofing a great team of guys I found the men very polite there time keeping was on point as me and my partner work and had to leave on time Works carried out I cannot fault clean tidy. I used Harrow roofing company as a lot of close friends suggested to When showing ryan the company owner the damage in my downstairs front and kitchen due to the bad leaks from the flat roof which was poorly done He suggested a decorater which I believe is a family member who also done a great job of repairing the damp and mould areas Highly recommended great team 👍🏻
Work completed:
Scores listed by Which? Trusted Traders
- Customer Service
- 5 / 5
- Quality
- 5 / 5
- Value
- 5 / 5
Customer recommends this business
5 Star Service!
Ryan and his team replaced an old leaky roof to our garden outbuilding. The job itself was done in no time at all and to a very high standard! They left the job clean and tidy and all works done for a very good price. Would highly recommend!
Work completed:
Scores listed by Which? Trusted Traders
- Customer Service
- 5 / 5
- Quality
- 5 / 5
- Value
- 5 / 5
Customer recommends this business
Best Roofers ever used!
Ryan and his team are the best roofers I've used. Has carried out several roofing jobs for my company. Professional and produces excellent quality workmanship and could not recommend highly enough. A+++
Work completed:
Scores listed by Which? Trusted Traders
- Customer Service
- 5 / 5
- Quality
- 5 / 5
- Value
- 5 / 5
Sources
3 named public sourcesWhere this information comes from
Everything on this page is drawn from named public sources. Where a source provides a public link, you can open the original and dig deeper.
Review sources
Public evidence last checked June 2026
About
Harrow Roofing & Building Limited has been vetted and approved by TrustATrader. Covering Pinner, Harrow, Greater London and surrounding areas within a 10 miles radius
Services they list
Asphalt Roofing InstallationAsphalt Roofing RepairBalcony Roofing InstallationBalcony Roofing RepairChimney Cowlings InstallationChimney Cowlings RepairChimneys InstallationChimneys RepairConservatory Roof ConversionsDormer / Roof WindowsDry Ridge InstallationDry Ridge Repair
Listed on public sources or the business's own website; check directly that they cover your job before you book.
Areas served
Greater LondonNorthwood
The areas they list covering on a public directory; confirm they cover your address before you book.
What this business says about itself
From their own website
What this business says about itself
See their work: Photo gallery (opens in new tab) · Instagram (opens in new tab) · Facebook (opens in new tab)
- Emergency availability: within 1 hour
- Guarantee: Insurance backed guarantees range from 10 to 30 years
- Experience they state: Over 25 years of industry experience
- Areas served: North, North West, West, Hertfordshire, Buckinghamshire
- Good to know: Waste removal included · Design service
Accreditations it displays. Confirm each is current on the official register before you hire:
- Which? Trusted Trader · verify (opens in new tab) · we hold this registration
- Checkatrade · verify (opens in new tab)
- MCS certified · verify (opens in new tab)
- NFRC (National Federation of Roofing Contractors) · verify (opens in new tab)
- NFRC Competent Person Scheme (CompetentRoofer) · verify (opens in new tab)
These are statements the business makes on its own website, worth confirming in writing (and on the official registers) before you hire, not independently verified by us.
Independent checks
About this business
How long they've really been tradingOperating since at least 2015 (11 years), according to an independent source, not just their own word.
First public review2015Website online since2018
Your own checks
What to check before you hire
Worth checking yourself
Always confirm credentials and quotes with the business directly before hiring.
Verify at the sourceCheck them yourself
Roofing isn't licensed, so anyone can set up - and it's a trade with more than its share of cowboys. A big re-roof must meet building regulations; CompetentRoofer (the Government-authorised NFRC scheme) registers roofers who can self-certify that, and vets and inspects them at least twice a year. Check they're on it before you hire.
Check the CompetentRoofer registerNever agree to roof work from a cold-caller at your door or an unsolicited 'we noticed your roof' note. That is the classic roofing scam.
Get a written quote that itemises access (scaffolding or a tower), the exact materials, and the workmanship guarantee, not a vague day rate.
Be wary of demands for a large cash deposit; agree staged payments against work you can actually see completed.
Want an extra legitimacy check? Run the Cowboy Checker on Harrow Roofing & Building Limited before you contact them.
Run Cowboy Checker →Good to know
Common questions about Harrow Roofing & Building Limited
Is Harrow Roofing & Building Limited a legitimate business?
Harrow Roofing & Building Limited has 196 independent public reviews, rated 4.9 out of 5, gathered and cross-checked across 3 review sources. This is independent public evidence gathered from named public sources (no ads, no paid placement), not a guarantee of workmanship. If anything here is out of date, the business can request a correction.
What do customers say about Harrow Roofing & Building Limited?
Harrow Roofing & Building Limited has 196 public reviews, averaging 4.9 out of 5, gathered across 3 review sources, 2 of which publish a rating. You can read the individual reviews and where each came from in the reviews section above.
How is Harrow Roofing & Building Limited rated on reliability and quality?
On Checkatrade, customers rate Harrow Roofing & Building Limited by category: Reliability 5.0 out of 5, Communication 5.0 out of 5, Quality of work 5.0 out of 5. These are per-category scores from real published reviews. They show where Harrow Roofing & Building Limited is strongest, not just the overall average.
How do I know Harrow Roofing & Building Limited's reviews are genuine?
Harrow Roofing & Building Limited's 196 public reviews are gathered and cross-checked across 3 review sources. Reviews spread across several review sources are harder to fake than a single polished page. MyTrustedTraders brings this public evidence together with no ads and no paid placement: we show where every review came from rather than selling rankings, so you can weigh the evidence for yourself.
Is Harrow Roofing & Building Limited qualified and accredited?
We hold 2 independently sourced credentials for Harrow Roofing & Building Limited, including Which? Trusted Traders, TrustATrader Approved. Each is attributed to the body that issued it in the credentials section. For example, Which? Trusted Traders is Which? Trusted Trader: an endorsement from the consumer champion Which?, given to traders who pass its assessment process.
Does Harrow Roofing & Building Limited guarantee their work?
They state on their own website that insurance backed guarantees range from 10 to 30 years. This is the business's own statement on their website, not something we have independently checked. Get the terms in writing before you agree to the job.
What does Harrow Roofing & Building Limited specialise in?
Harrow Roofing & Building Limited lists specialist services including Asphalt Roofing Installation, Asphalt Roofing Repair, Balcony Roofing Installation, Balcony Roofing Repair, Chimney Cowlings Installation, Chimney Cowlings Repair. If your job is one of these, look for it in their listed services or ask them to confirm for your project.
What areas does Harrow Roofing & Building Limited cover?
They state on their own website that they cover North, North West, West, Hertfordshire, Buckinghamshire. This is the business's own statement on their website, not something we have independently checked. Confirm they cover your postcode before booking.
When was Harrow Roofing & Building Limited's website registered?
Harrow Roofing & Building Limited's website has been online since 2018, according to the public domain registry. This dates the website, not necessarily when the business began trading.