“Very quick response,very professional and fixed within half hour.Will be booking him from now on”
Public evidence profile · Checked May 2026
JaJ plumbing and heating
Trust Score
22out of 100
22 out of 100, with a caution: only 3 reviews held yet. A small public record keeps the evidence thin, and the score reflects that.
- Rated 5.0 from 3 reviews
- 3 reviews in the last 12 months
How this score is worked out
Rating5.0 / 5
Review volumeLow · 3
Independent sources1 independent public source
CredentialsNo credentials shown yet
How this score is made up
What customers say19.5 of 60
Independent checks0 of 30
Track record2.5 of 10
See the independent checks
- Licences and credentials0 of 8.3
- Ways to reach them0 of 8.3
- Reviewed on more than one site0 of 6.2
- Registered company details0 of 4.1
- Photos of their work0 of 2.1
- Industry recognition0 of 1
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.
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
Where these reviews are published
- MyJobQuote3 reviews · 5.0 avg
Highlights
“James was really prompt in his response. NOT A SALSESMAN! He outlined the different options available and any possible pit-falls. He explained everything as he went through his diagnostics (and explained it in terms that a person who ISN'T a professional Plumber/Heating engineer would understand!) As this job was for an older adult, James re-arranged his appointments to accommodate the necessary speed that the job required. James has 25+ years’ experience working on both commercial and domestic properties - gaining him the name (in my opinion) as the Boiler Whisperer! All-in-all, a really kind, friendly and professional person who doesn't intrude (and takes his boots off, even if they're clean!) I can’t recommend James highly enough for a quality service and a caring nature.”
“James did a fantastic job servicing my boiler and fixing a slow leak that previously required me to top up the pressure once every 3 days.”
Detailed reviews
Very quick response,very professional and fixed within half hour.Will be booking him from now on
James was really prompt in his response. NOT A SALSESMAN! He outlined the different options available and any possible pit-falls. He explained everything as he went through his diagnostics (and explained it in terms that a person who ISN'T a professional Plumber/Heating engineer would understand!) As this job was for an older adult, James re-arranged his appointments to accommodate the necessary speed that the job required. James has 25+ years’ experience working on both commercial and domestic properties - gaining him the name (in my opinion) as the Boiler Whisperer! All-in-all, a really kind, friendly and professional person who doesn't intrude (and takes his boots off, even if they're clean!) I can’t recommend James highly enough for a quality service and a caring nature.
James did a fantastic job servicing my boiler and fixing a slow leak that previously required me to top up the pressure once every 3 days.
Local context
Rated 5.0, in line with the local average for plumbers in Dumbarton
Across 5 plumbers in Dumbarton, 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
1 named public sourceWhere 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 May 2026
About
JaJ plumbing and heating are Heating Engineers based in Dumbarton and cover surrounding area including Dumbarton, Renton and Cardross.
Independent checks
About this business
Recently reviewed3 reviews in the last 12 months.
Your own checks
What to check before you hire
Worth checking yourself
Only a few public reviews are shown. Ask for recent references you can contact.
Their public evidence comes from a single source. Look them up on another site before deciding.
No credentials are shown here and the business has not claimed this profile. Ask to see certificates and insurance directly.
Verify at the sourceCheck them yourself
Approved plumbers on the free WaterSafe register are vetted, qualified to the water regulations and insured. Check they're listed, or find a WaterSafe-approved plumber near you.
Check the WaterSafe registerAgree the call-out fee, the hourly or fixed rate, and whether parts are charged on top, in writing, before an emergency plumber starts. Out-of-hours overcharging and 'while I'm here' add-ons are common complaints.
Be wary of a plumber who, on a first visit, says your whole system or boiler must be replaced. Get a second opinion and an itemised quote (parts and labour separately) before agreeing to major work.
Gas and boiler work is a separate, regulated trade, not general plumbing. Make sure anyone working on a gas appliance is specifically registered to do gas work, and ask to see that registration before they start.
Want an extra legitimacy check? Run the Cowboy Checker on JaJ plumbing and heating before you contact them.
Run Cowboy Checker →Good to know
Common questions about JaJ plumbing and heating
Is JaJ plumbing and heating a legitimate business?
JaJ plumbing and heating has 3 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 JaJ plumbing and heating?
JaJ plumbing and heating has 3 public reviews, averaging 5 out of 5. You can read the individual reviews and where each came from in the reviews section above.
How do I know JaJ plumbing and heating's reviews are genuine?
JaJ plumbing and heating's 3 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 JaJ plumbing and heating had recent public reviews?
JaJ plumbing and heating 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.