Heating engineer
CMSC Plumbing Heating and Air Conditioning
Trust score
46out of 100
Rating4.9★
Review volumeLow · 2
Evidence breadth1 independent public source
Profile statusListed
Based on rating, review volume, independent sources and verification. 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 trader 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
Highlights
"Carlos has been doing repairs on my boiler and general plumbing work for over 10 years. Have always found him courteous and extremely efficient in all the work he has done for me. He is a good communicator and always goes the extra mile to sort out any problem. As I am a landlord and not on site when he carries out repair work, always sends me before and after photos."
"I have one Worcester and one Vaillant boiler and have employed CMSC over several years and have found Carlos Serna to be very reliable, knowledgeable, courteous and efficient. I have no hesitation in recommending him."
Detailed reviews
I have one Worcester and one Vaillant boiler and have employed CMSC over several years and have found Carlos Serna to be very reliable, knowledgeable, courteous and efficient. I have no hesitation in recommending him.
Carlos has been doing repairs on my boiler and general plumbing work for over 10 years. Have always found him courteous and extremely efficient in all the work he has done for me. He is a good communicator and always goes the extra mile to sort out any problem. As I am a landlord and not on site when he carries out repair work, always sends me before and after photos.
Local context
Rated 4.9★ — in line with the local average for heating engineers in Chelmsford
Across 26 rated heating engineers in Chelmsford, the typical rating is 4.9★. We compare against the same businesses a homeowner would find searching for this trade locally.
Sources
1 named public sourceEvery signal, traced to its origin
Review sources
About
Central heating in Chelmsford, Essex.
Services they list
Central Heating
Listed on public sources or the business's own website; check directly that they cover your job before you book.
Areas served
ChelmsfordEssex
The areas they list covering on a public directory; confirm they cover your address before you book.
Check them yourself
What to check before you hire
Worth checking yourself
Review volume: Low · 2
Evidence breadth: 1 independent public source
Profile status: Listed
Verify at the sourceCheck them yourself
Gas work is restricted by law to Gas Safe registered engineers. If they'll touch a boiler or any gas appliance, confirm they're currently on the register before you hire - it's free and takes a minute.
Check the Gas Safe RegisterConfirm they cover your area and can actually come out in your timeframe before anything else.
Read recent reviews for reliability and turning up on time — not only the quality of the work.
Agree the call-out fee up front, and be wary of large upfront deposits for an emergency job.
Want an extra legitimacy check? Run the Cowboy Checker on CMSC Plumbing Heating and Air Conditioning before you contact them.
Run Cowboy Checker →Good to know
Common questions about CMSC Plumbing Heating and Air Conditioning
What do customers say about CMSC Plumbing Heating and Air Conditioning?
CMSC Plumbing Heating and Air Conditioning has 2 public reviews, averaging 4.9 out of 5. You can read the individual reviews and where each came from in the reviews section above.
How do I know CMSC Plumbing Heating and Air Conditioning's reviews are genuine?
CMSC Plumbing Heating and Air Conditioning's 2 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.
What does CMSC Plumbing Heating and Air Conditioning specialise in?
CMSC Plumbing Heating and Air Conditioning lists specialist services including Central Heating. If your job is one of these, look for it in their listed services or ask them to confirm for your project.