Plumber
KLM Plumbing %26 Heating Services
Trust score
82out of 100
Rating4.9★
Review volume217
Source diversity2 sources
VerificationListed
Based on rating, review volume, independent sources and verification. Evidence context — not a guarantee of workmanship.
About
KLM Plumbing and Heating Services is a Cardiff based Gas Safe registered company. Kris, the plumber and gas heating engineer has over 29 years...
Reviews · public evidence
What customers say
4.9out of 5
Highlights
"Absolutely thrilled with my new bathroom! What used to be a dull grey space has been completely transformed into a stunning Victorian-style..."
"Great service. Full explained what was at fault and how to fix it."
"I've booked Kris a couple of times now - to fix a leak in our water metre and to complete a boiler..."
Detailed reviews
Absolutely thrilled with my new bathroom! What used to be a dull grey space has been completely transformed into a stunning Victorian-style...
Great service. Full explained what was at fault and how to fix it.
I've booked Kris a couple of times now - to fix a leak in our water metre and to complete a boiler...
I am beyond happy with my bathroom remodel. Kris and team did an amazing job and the attention to detail was fantastic.
Excellent service received from Kris to fix a toilet flush. Would highly recommend and use again for any plumbing issues.
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Local context
Rated 4.9★ — in line with the local average for plumbers in Cardiff
Across 98 rated plumbers in Cardiff, the typical rating is 4.9★. We compare against the same businesses a homeowner would find searching for this trade locally.
Public evidence checks
Public evidence shownTrust checks and red flags
Public review evidence4.9★ from 217 public reviewsFreeIndexWebsite
Sources
2 named sourcesEvery signal, traced to its origin
Review sources
FreeIndex
Official sources
Website
Public evidence checks
What's strong, and what to check yourself
✓Strong signals
✓Rating: 4.9★
✓Review volume: 217
✓Source diversity: 2 sources
!Worth checking yourself
!Verification: Listed
Public evidence last checked May 2026
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 registerGood to know
Common questions about KLM Plumbing %26 Heating Services
What do customers say about KLM Plumbing %26 Heating Services?
KLM Plumbing %26 Heating Services has 217 public reviews, averaging 4.9 out of 5, gathered across 2 independent sources. You can read the individual reviews and where each came from in the reviews section above.
How do I know KLM Plumbing %26 Heating Services's reviews are genuine?
KLM Plumbing %26 Heating Services's 217 public reviews are gathered and cross-checked across 2 independent public sources. Reviews spread across several named 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.
Smart checks
Before you hire a plumber
Agree 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.
Look for consistent reviews across several named sources, not one polished profile.
Check any verified credentials, and that the business details independently check out.
Want an extra legitimacy check?
Run the Cowboy Checker on KLM Plumbing %26 Heating Services before you contact them.
