Gas Engineer
Costelloe Plumbing
Trust score
79out of 100
Rating5.0★
Review volume192
Source diversity1 source
VerificationListed
Based on rating, review volume, independent sources and verification. Evidence context — not a guarantee of workmanship.
Reviews · public evidence
What customers say
5.0out of 5
Highlights
"Excellent service from beginning to end. Will recommend Steve to all!"
"Super quick & easy - sorted the issue within about 15 mins. Really speedy response & very helpful, polite service! Thanks so much!"
"Steve was very helpful and prompt, coming the same day to address a problem with our toilet valve, and friendly and nice to deal with. I'd definitely use Costelloe again in future"
Detailed reviews
Excellent service from beginning to end. Will recommend Steve to all!
Super quick & easy - sorted the issue within about 15 mins. Really speedy response & very helpful, polite service! Thanks so much!
Steve was very helpful and prompt, coming the same day to address a problem with our toilet valve, and friendly and nice to deal with. I'd definitely use Costelloe again in future
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Local context
Rated 5.0★ — above the local average for gas engineers in Waltham Abbey
Across 10 rated gas engineers in Waltham Abbey, the typical rating is 4.9★. We compare against the same businesses a homeowner would find searching for this trade locally.
About
Verified plumber in Waltham Abbey.
Public evidence checks
Public evidence shownTrust checks and red flags
Public review evidence5.0★ from 192 public reviewsAcross CheckatradeCheckatrade
Sources
1 named sourcesEvery signal, traced to its origin
Review sources
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 RegisterPublic evidence checks
What's strong, and what to check yourself
✓Strong signals
✓Rating: 5.0★
✓Review volume: 192
!Worth checking yourself
!Source diversity: 1 source
!Verification: Listed
Smart checks
Before you hire a gas engineer
By law, anyone working on your gas appliances must be on the Gas Safe Register — ask to see their Gas Safe ID card and check the licence number at gassaferegister.co.uk before they start.
Never let an unregistered person touch your gas: unsafe gas work risks carbon monoxide poisoning, fire and explosion, and is a criminal offence.
For a boiler or appliance install, get the work and price in writing and keep the Gas Safe / Building Regulations certificate they are required to give you.
Confirm 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.
Want an extra legitimacy check?
Run the Cowboy Checker on Costelloe Plumbing before you contact them.
