“JSC trademark is the 3 'P's - Professional, Polite and Punctual.” · Checkatrade, 24 Jan 2026
“always on time” · Checkatrade, 5 Nov 2025
Public evidence profile
JSC Heating & A/C Ltd
Credentials & registries
REFCOM (F-Gas register)
Companies House
Active incorporated business
Trust Score
64out of 100
- Rated 5.0 from 285 reviews
- 4 reviews in the last 12 months
How this score is worked out
Rating5.0 / 5
Review volume285
Independent sources2 independent public sources
Credentials1 credential shown
How this score is made up
What customers say47.6 of 60
Independent checks9.9 of 30
Track record6.2 of 10
See the independent checks
- Licences and credentials2.4 of 8.3
- Ways to reach them3.3 of 8.3
- Reviewed on more than one site0 of 6.2
- Registered company details4.1 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.
From customer reviews
What customers consistently say
Recurring themes from 5 customer reviews on Checkatrade.
Credentials and associations
1Credentials and memberships
These credentials and memberships are attributed to named public sources. Check the source before relying on them.
- Source reference
- REF1019010
- Source checked
- 28 Jun 2026
Companies House registration
ActiveActive incorporated business
JSC Heating & A/C Ltd is linked to a Companies House entry. This shows the business registration, not evidence of workmanship or service quality.
Legal nameJSC Heating & A/C Ltd
Company number15462884
Incorporated
Registered activityPlumbing & heating installation
Official checkOn the public register
Why this helps you judge trust: this trader is linked to a registered company with named people who are legally accountable for it, on an official register anyone can check, a layer of accountability an unregistered trader doesn't offer.
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
Customers often mention
Where these reviews are published
- Checkatrade285 reviews
Detailed reviews
These are the individual reviews we hold for JSC Heating & A/C Ltd, including the highlights above. The 285 headline total is the review volume reported across public review sources.
Jamie was able to attend at short notice to check a stuck gate vale in our airing cupboard and also if our two-way valve for heating and water was getting stuck. Turned out the two-way valve was operating fine and needed no work. Gate valve is a complicated story, to be resolved when he returns to carry out our annual service in June. Great service again.
JSC trademark is the 3 'P's - Professional, Polite and Punctual. Jamie's skill, knowledge and application always ensures 100% satisfaction. Highly recommended.
We've used Jamie for our heating needs for more than 15 years. Yesterday's routine annual boiler service turned into a major exercise, but Jamie stuck with it, kept his cool, and finished the job to his usual very high standard. Highly recommended.
Jamie Coombes has been servicing our boiler since installation in 2015. He is very knowledgeable, helpful and friendly. Excellent work, always on time and a fair price. Highly recommended. Our boiler required an annual service and a replacement room thermostat.
Local context
Rated 5.0, in line with the local average for heating engineers in Billericay
Across 9 heating engineers in Billericay, 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
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
Registers and membership directories
Business and public registers
Check dates vary by source. Where we hold a date, the check shows it.
About
Central heating in Billericay, Essex.
Services they list
Underfloor heating installation
Listed on public sources or the business's own website; check directly that they cover your job before you book.
What this business says about itself
From their own website
What this business says about itself
See their work: Facebook (opens in new tab)
- Services stated: Underfloor heating installation
- Good to know: Free quotes
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.
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
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 JSC Heating & A/C Ltd before you contact them.
Run Cowboy Checker →Independent checks
About this business
A real, registered businessWe cross-checked Companies House: this business is officially registered for work that matches the heating engineer services it advertises - independent confirmation it's a genuine business set up to do this kind of work, not just a directory entry.
How long they've really been tradingOperating since at least 2024 (2 years), according to an independent source, not just their own word.
Website online since2005Company registered2024
Good to know
Common questions about JSC Heating & A/C Ltd
Is JSC Heating & A/C Ltd a legitimate business?
JSC Heating & A/C Ltd has 285 independent public reviews, rated 5.0 out of 5. It is a registered business on Companies House, listed as active, and the public register shows no adverse status (no dissolution, insolvency or strike-off) against it. 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 JSC Heating & A/C Ltd?
JSC Heating & A/C Ltd has 285 public reviews, averaging 5.0 out of 5. You can read the individual reviews and where each came from in the reviews section above.
How is JSC Heating & A/C Ltd rated on reliability and quality?
On Checkatrade, customers rate JSC Heating & A/C Ltd 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 JSC Heating & A/C Ltd is strongest, not just the overall average.
How do I know JSC Heating & A/C Ltd's reviews are genuine?
JSC Heating & A/C Ltd's 285 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 JSC Heating & A/C Ltd had recent public reviews?
JSC Heating & A/C Ltd has 4 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 JSC Heating & A/C Ltd qualified and accredited?
We hold 1 independently sourced credential for JSC Heating & A/C Ltd, including REFCOM (F-Gas register). Each is attributed to the body that issued it in the credentials section. For example, REFCOM (F-Gas register) is the UK register for businesses that handle fluorinated refrigerant gases, which the law requires for refrigeration and air-conditioning work.
Is JSC Heating & A/C Ltd a registered business?
JSC Heating & A/C Ltd is a registered business on Companies House (company number 15462884), incorporated 2 Feb 2024, listed as active. This confirms the legal registration of the business, not evidence of workmanship or service quality.
What does JSC Heating & A/C Ltd specialise in?
JSC Heating & A/C Ltd lists specialist services including Underfloor heating installation. If your job is one of these, look for it in their listed services or ask them to confirm for your project.