- Source checked
- 18 Mar 2026
Public evidence profile · Checked March 2026
JM Roofing & Building Services
Credentials & registries
City and Guilds
Trust Score
54out of 100
- Rated 5.0 from 176 reviews
- 1 credential shown
Worth checking: NFRC Competent Person Scheme (CompetentRoofer)
How this score is worked out
Rating5.0 / 5
Review volume176
Independent sources1 independent public source
Credentials1 credential shown
How this score is made up
What customers say45.1 of 60
Independent checks4.1 of 30
Track record5 of 10
See the independent checks
- Licences and credentials1.2 of 10.3
- Ways to reach them2.9 of 3.4
- Reviewed on more than one site0 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
1Credentials and memberships
These credentials and memberships are attributed to named public sources. Check the source before relying on them.
From customer reviews
What customers consistently say
Recurring themes from 3 customer reviews on Checkatrade.
“James was reliable, prompt” · Checkatrade, 30 Aug 2025
“I find JM Roofing to be very reliable” · Checkatrade, 26 Aug 2025
Reviews · public evidence
What customers say
These reviews are published independently on the named public source 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.
5.0out of 5
How Checkatrade customers rate them (out of 5)
Reliability5.0
Communication5.0
Quality of work5.0
Where these reviews are published
- Checkatrade176 reviews · 5.0 avg
Detailed reviews
These are the individual reviews we hold for JM Roofing & Building Services, including the highlights above. The 176 headline total is the review volume reported across public review sources.
Highly recommend this company! Really helped us out recently. After getting a quote from another company, which we thought was extortionate! Jamie come round and sorted the issue with a very reasonable quote and got the issue sorted the next day for us. If you want a genuine Roofer who isn’t out to rip off their customers, Jamie is your man!
James was reliable, prompt and did a very good job fixing the bay roof and fascia. Highly recommended.
I find JM Roofing to be very reliable, providing realistic quotes and a highly professional finish, with excellent quality. This is the second time I have used them and have also recommended them to other family members and friends.
Local context
Rated 5.0, above the local average for roofers in Portsmouth
Across 200 roofers in Portsmouth, the typical rating is 4.9 out of 5. We compare against the same businesses a homeowner would find searching for this trade locally.
Sources
2 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
Registers and membership directories
Public evidence last checked March 2026
Services they list
Chimney Cowlings InstallationChimney Cowlings RepairChimneys InstallationChimneys RepairDormer / Roof WindowsDry Ridge InstallationDry Ridge RepairDry Verge InstallationFelt Roofing InstallationFelt Roofing RepairFibre Glass Roofing InstallationFibre Glass Roofing Repair
Listed on public sources or the business's own website; check directly that they cover your job before you book.
Areas served
HampshirePortsmouth
The areas they list covering on a public directory; confirm they cover your address before you book.
Your own checks
What to check before you hire
Worth checking yourself
Their public evidence comes from a single source. Look them up on another site before deciding.
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 JM Roofing & Building Services before you contact them.
Run Cowboy Checker →Good to know
Common questions about JM Roofing & Building Services
Is JM Roofing & Building Services a legitimate business?
JM Roofing & Building Services has 176 independent public reviews, rated 5 out of 5. 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 JM Roofing & Building Services?
JM Roofing & Building Services has 176 public reviews, averaging 5 out of 5. You can read the individual reviews and where each came from in the reviews section above.
How is JM Roofing & Building Services rated on reliability and quality?
On Checkatrade, customers rate JM Roofing & Building Services 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 JM Roofing & Building Services is strongest, not just the overall average.
How do I know JM Roofing & Building Services' reviews are genuine?
JM Roofing & Building Services' 176 public reviews come from a named public review source, and MyTrustedTraders links every one back to where it was published, so you can open the source and read them yourself rather than trusting a single curated 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.
Has JM Roofing & Building Services had recent public reviews?
JM Roofing & Building Services has 3 public reviews dated within the last 12 months. That shows their review history includes recent feedback; it does not prove current availability, so confirm capacity before hiring.
Is JM Roofing & Building Services qualified and accredited?
We hold 1 independently sourced credential for JM Roofing & Building Services, including City and Guilds. Each is attributed to the body that issued it in the credentials section. For example, City and Guilds is City & Guilds: a long-established UK awarding body whose qualifications certify a tradesperson trained to a recognised vocational standard.
What does JM Roofing & Building Services specialise in?
JM Roofing & Building Services lists specialist services including Chimney Cowlings Installation, Chimney Cowlings Repair, Chimneys Installation, Chimneys Repair, Dormer / Roof Windows, Dry Ridge Installation. If your job is one of these, look for it in their listed services or ask them to confirm for your project.