How do I check a gas engineer is on the Gas Safe Register?
What to look for on the ID card, front and back, how to search the register, and what to do if something is wrong.
The best gas engineers in Glasgow, 2026
Top 10
gas engineers.
We looked at more than 60 gas and heating engineers working in Glasgow, checked 20 of them in depth against the Gas Safe Register, Companies House and the main review platforms, and ranked the best ten. Nobody paid to be here.
The table
First edition, so every entry is new · Reviews counted 3 November 2026
| Pos | Move | Gas engineer | Based in | Reviews | Score |
|---|---|---|---|---|---|
| 01 | New | Gasman Energy | Hillington | 1,217 Checkatrade | 9.7 |
| 02 | New | John Doherty and Co | Old Kilpatrick | 360 Trusted Trader | 8.9 |
| 03 | New | Willis-West Plumbing & Heating | Summerston | 156 Checkatrade | 8.9 |
| 04 | New | Central Heating Gas Services | Glasgow | 810 Checkatrade | 8.8 |
| 05 | New | Gormley Heating | Inchinnan | 195 Checkatrade | 8.6 |
| 06 | New | D McLeod Plumbing & Heating | Netherlee | 212 Checkatrade | 8.4 |
| 07 | New | Precision Heat Plumbing | Houston | 146 Checkatrade | 8.2 |
| 08 | New | Haran Moffat Plumbing | Renfrew | 82 Trusted Trader | 8.2 |
| 09 | New | AbleGasCentral | Glasgow | 176 Checkatrade | 8.1 |
| 10 | New | Thomson Heating Group | Bishopton | 209 Trusted Trader | 8.0 |
Ties are split by the unrounded score, then by review count. Every firm listed covers Glasgow.
Why they rank
-
Number 1: Gasman Energy
Montrose Avenue, Hillington Park · Covers Glasgow and Renfrewshire
9.7out of 10
The biggest review count of any Glasgow gas firm we found: 1,217 Checkatrade reviews averaging 9.65 out of 10, plus a 4.9 on the Trusted Trader scheme. We confirmed it on the Gas Safe Register, it has been a limited company since 2008, and it is also OFTEC registered for oil boilers.
- Reviews 3.75 / 4
- Accreditation 2.5 / 2.5
- Track record 2.0 / 2
- Reviews
- 9.65 / 10 from 1,217 Checkatrade reviews · 4.9 from 62 Trusted Trader reviews
- Accreditation
- Gas Safe Register 306539 (checked on the register). OFTEC, NICEIC.
- Track record
- Incorporated December 2008
- Best for
- Boiler installs and repairs, oil and gas heating, 24/7 call outs
-
Number 2: John Doherty and Co
Nu Skope Business Centre, Old Kilpatrick · Covers Glasgow and West Dunbartonshire
8.9out of 10
A 4.9 from 360 reviews on the Trusted Trader scheme, a member since 2016. We confirmed it on the Gas Safe Register, and it works on both natural gas and LPG appliances.
- Reviews 3.1 / 4
- Accreditation 2.5 / 2.5
- Track record 2.0 / 2
- Reviews
- 4.9 from 360 Trusted Trader reviews
- Accreditation
- Gas Safe Register 181735 (checked on the register). CIPHE member.
- Track record
- Trusted Trader member since 2016
- Best for
- Natural gas and LPG appliances, boiler servicing and repairs
-
Number 3: Willis-West Plumbing & Heating
Blackhill Drive, Summerston · Covers Glasgow
8.9out of 10
Top marks on two vetted platforms: 9.92 out of 10 from 156 Checkatrade reviews and a perfect 5.0 from 80 Which? reviews. A limited company since 2011 and a Worcester Bosch accredited installer, it specialises in full central heating systems and gas appliance repairs.
- Reviews 3.4 / 4
- Accreditation 2.2 / 2.5
- Track record 2.0 / 2
- Reviews
- 9.92 / 10 from 156 Checkatrade reviews · 5.0 from 80 Which? reviews
- Accreditation
- Gas Safe (shown on its website), Worcester Bosch accredited, Checkatrade and Which?
- Track record
- Incorporated November 2011
- Best for
- New central heating systems, Worcester Bosch boilers, gas fires
-
Number 4: Central Heating Gas Services
Glasgow and Troon · Covers Glasgow and Ayrshire
8.8out of 10
A family run firm with 810 Checkatrade reviews averaging 9.97 out of 10, and 101 of them in the last year. It says it has 20 years of experience and covers LPG as well as natural gas. Only its Gas Safe logo is shown, which we could not check on the register, so it misses out on full accreditation marks.
- Reviews 3.6 / 4
- Accreditation 2.2 / 2.5
- Track record 1.7 / 2
- Reviews
- 9.97 / 10 from 810 Checkatrade reviews (101 in the last year)
- Accreditation
- Gas Safe (logo shown on Checkatrade), Checkatrade vetted
- Track record
- On Checkatrade since April 2018. Says 20 years of experience.
- Best for
- Boiler servicing, landlord gas certificates, LPG heating
-
Number 5: Gormley Heating
Broompark Drive, Inchinnan · Covers Glasgow, Clydebank and Renfrew
8.6out of 10
Perfect scores on two platforms: 10 out of 10 from 195 Checkatrade reviews and 5.0 from 91 Trusted Trader reviews. Sean Gormley has more than 15 years in the trade, and the firm's Gas Safe number is listed on its Trusted Trader profile.
- Reviews 3.4 / 4
- Accreditation 2.2 / 2.5
- Track record 1.7 / 2
- Reviews
- 10 / 10 from 195 Checkatrade reviews · 5.0 from 91 Trusted Trader reviews
- Accreditation
- Gas Safe 586647 (listed on its Trusted Trader profile)
- Track record
- On Checkatrade since May 2017
- Best for
- Boiler installs, unvented cylinders, power flushing
-
Number 6: D McLeod Plumbing & Heating
Netherlee Road (G44) · Covers the Southside and Glasgow
8.4out of 10
Derek McLeod has more than 35 years in the trade, by his own account, and a 9.69 out of 10 from 212 Checkatrade reviews. We confirmed him on the Gas Safe Register. He covers boilers, gas fires, cookers and landlord certificates.
- Reviews 2.95 / 4
- Accreditation 2.5 / 2.5
- Track record 1.7 / 2
- Reviews
- 9.69 / 10 from 212 Checkatrade reviews (65 in the last year)
- Accreditation
- Gas Safe Register 54412 (checked on the register)
- Track record
- On Checkatrade since April 2017
- Best for
- Southside boilers, gas fires and cookers, landlord certificates
-
Number 7: Precision Heat Plumbing
Houston, Renfrewshire · Covers Glasgow and Renfrewshire
8.2out of 10
9.91 out of 10 from 146 Checkatrade reviews, confirmed on the Gas Safe Register, and strong on unvented hot water cylinders. Checkatrade shows its public liability cover as unverified, so ask for proof when you book.
- Reviews 2.8 / 4
- Accreditation 2.5 / 2.5
- Track record 1.7 / 2
- Reviews
- 9.91 / 10 from 146 Checkatrade reviews (45 in the last year)
- Accreditation
- Gas Safe Register 529072 (checked on the register)
- Track record
- On Checkatrade since May 2017
- Best for
- Boilers, unvented cylinders, underfloor heating
-
Number 8: Haran Moffat Plumbing
Wilson Street, Renfrew · Covers Glasgow, Renfrew, Paisley and Erskine
8.2out of 10
A Trusted Trader since 2012 with a 4.9 from 82 reviews, confirmed on the Gas Safe Register and an approved Alpha boiler installer. One 2022 review mentioned slow replies, which the firm put down to losing staff.
- Reviews 2.5 / 4
- Accreditation 2.5 / 2.5
- Track record 2.0 / 2
- Reviews
- 4.9 from 82 Trusted Trader reviews
- Accreditation
- Gas Safe Register 163202 (checked on the register)
- Track record
- Trusted Trader member since 2012
- Best for
- Boiler installs and servicing, landlord gas certificates
-
Number 9: AbleGasCentral
Glasgow · Covers Glasgow
8.1out of 10
Stephen McGivern's sole trader gas business scores 9.97 out of 10 from 176 Checkatrade reviews and has been a member since 2019. He covers natural gas and LPG boilers, cookers and fires, and landlord gas certificates.
- Reviews 3.0 / 4
- Accreditation 2.2 / 2.5
- Track record 1.7 / 2
- Reviews
- 9.97 / 10 from 176 Checkatrade reviews
- Accreditation
- Gas Safe (logo shown on Checkatrade), Checkatrade vetted
- Track record
- On Checkatrade since January 2019
- Best for
- Boilers, LPG, gas cookers and fires, landlord certificates
-
Number 10: Thomson Heating Group
Greenock Road, Bishopton · Covers Erskine, Paisley, Renfrew, Bearsden and Milngavie
8.0out of 10
A perfect 5.0 from 209 reviews on the Trusted Trader scheme, the highest rating at that volume we found. It is a member since 2020 and its Gas Safe number is listed on its profile. It mostly covers the west side of Greater Glasgow.
- Reviews 3.2 / 4
- Accreditation 2.2 / 2.5
- Track record 1.4 / 2
- Reviews
- 5.0 from 209 Trusted Trader reviews
- Accreditation
- Gas Safe 592479 (listed on its Trusted Trader profile)
- Track record
- Trusted Trader member since 2020
- Best for
- Boiler installs, repairs and servicing, radiators
Just outside the ten
Good firms that missed out on this edition
- TG HeatingGlasgow · 9.98 / 10 from 208 Checkatrade reviews · on Checkatrade since 2022 · 8.0
- McQueen HeatingCardonald · 5.0 from 145 Trusted Trader reviews · Gas Safe 626853 · 7.9
- TR Plumbing & HeatingAnniesland · 5.0 from 130 Which? reviews · 7.9
- Mercer Plumbing & HeatingBearsden · SNIPEF member · 4.9 from 48 Which? reviews · 7.6
- Glasgow Boiler Experts10 / 10 from 89 Checkatrade reviews · not checked in depth
How we scored this table
We built a long list from Checkatrade, Which? Trusted Traders and the Trusted Trader scheme, then checked 20 firms in depth. Each got a score out of ten from the checks on the right. The table is that score, highest first.
Every firm here shows Gas Safe registration. Full accreditation marks go only to those we confirmed on the Gas Safe Register ourselves; the register then blocked our checks, so some firms with a number on their Trusted Trader profile score slightly less. Responsiveness has not been tested yet; scores are based on the other three checks, scaled to ten.
-
Reviews4 points
Volume and average rating on the main platform, plus credit for strong reviews on a second platform.
-
Accreditation2.5 points
Full marks only where we confirmed the firm on the Gas Safe Register ourselves. A listed number or logo scores less.
-
Track record2 points
Years trading, backed by Companies House or a membership date where we could find one.
Before you hire a gas engineer in Glasgow
Gas is the one trade where a bad job can kill. These checks take two minutes.
Check the Gas Safe card, both sides
Every engineer must carry a Gas Safe ID card. The back shows which appliances they are qualified for, such as boilers, cookers or fires. Check the number on the Gas Safe Register before work starts.
Get your boiler serviced every year
Most manufacturers ask for a yearly service to keep the warranty valid, and it is the best way to catch a carbon monoxide risk early.
Know the Scottish rules
- Landlords need a gas safety check every year and must give tenants a copy of the record.
- Every home with a boiler, gas fire or other fixed fuel burning appliance must have a carbon monoxide alarm.
- If you smell gas leave the property and call the National Gas Emergency number on 0800 111 999. It is free and open 24 hours.
Questions
Who is the best gas engineer in Glasgow?
In our 2026 table, Gasman Energy scores highest, with 9.7 out of 10. It has 1,217 Checkatrade reviews, we confirmed it on the Gas Safe Register, and it has traded since 2008.
Why do some firms appear on both the plumbers and gas engineers tables?
Many Glasgow firms do both plumbing and gas work. They are scored the same way on both tables, but the tables include different firms, so positions can differ.
Did any of these engineers pay to be listed?
No. Nobody can buy a place in the table. Some firms pay to be on Checkatrade or Which?, but that only counts here because those schemes check identity, insurance and references.
Is there help with the cost of a new boiler in Scotland?
Home Energy Scotland gives free advice on heating upgrades and can tell you which grants and loans you qualify for.
Guides for hiring gas engineers
All 20 guides
How often should I get my boiler serviced?
Why once a year is the standard, what a proper service includes, and how it differs from a landlord gas safety check.
How much does a landlord gas safety certificate cost in Glasgow?
Typical prices for a CP12, the cost of each extra appliance, and the deadlines Scottish landlords must meet.
Is there help with the cost of a new boiler in Scotland?
What the Home Energy Scotland Grant and Loan and Warmer Homes Scotland cover, and why a like-for-like gas boiler is harder to fund.
Other tables
Glasgow gas engineer not on the list?
Send us your Gas Safe number. Getting assessed is free. Getting ranked is earned.