Gas Engineer
Top Plumb
Credentials & registries
1 named source
Trust score
82out of 100
Rating5.0★
Review volume842
Source diversity1 source
VerificationVerified
Based on rating, review volume, independent sources and verification. Evidence context — not a guarantee of workmanship.
Trust at a glance
1 checkWhat we can verify about Top Plumb
Each card summarises one evidence dimension from public sources — open it for the full detail and named source. This is evidence context, not a guarantee.
See the full verification checklist for Top Plumb →Reviews · public evidence
What customers say
5.0out of 5
Highlights
"Top Plumb in Portsmouth were recommended to Deverell Hall in Purbrook to carry out some plumbing works at our local community hall. Dan Shaw was exceptionally helpful and turned up at the agreed time and date. The works were carried out to a high standard, they were in my opinion correctly priced, and we have approved his business for future works."
"Dan was professional and helpful from the initial contact to completing the repair and resealing of my shower trap. He also helped with some advice on kitchen tap issue solution, which saved me some money. He’s polite, friendly and super knowledgeable about his trade. Wouldn’t hesitate to recommend Dan to anyone, he’s brilliant! He’s previously also replaced bathroom taps for my Mum, and did an excellent job there too."
"the engineer turned up on time and performed my annual service on my boiler and provided me with a gas certificate for the year very good and reasonable, I've used this company a few times for various jobs in the past and found them to be very good, would definitely recommend"
Detailed reviews
Top Plumb in Portsmouth were recommended to Deverell Hall in Purbrook to carry out some plumbing works at our local community hall. Dan Shaw was exceptionally helpful and turned up at the agreed time and date. The works were carried out to a high standard, they were in my opinion correctly priced, and we have approved his business for future works.
Dan was professional and helpful from the initial contact to completing the repair and resealing of my shower trap. He also helped with some advice on kitchen tap issue solution, which saved me some money. He’s polite, friendly and super knowledgeable about his trade. Wouldn’t hesitate to recommend Dan to anyone, he’s brilliant! He’s previously also replaced bathroom taps for my Mum, and did an excellent job there too.
the engineer turned up on time and performed my annual service on my boiler and provided me with a gas certificate for the year very good and reasonable, I've used this company a few times for various jobs in the past and found them to be very good, would definitely recommend
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Local context
Rated 5.0★ — in line with the local average for gas engineers in Portsmouth
Across 96 rated gas engineers in Portsmouth, 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 Portsmouth, Hampshire.
Credentials and associations
1Named registry and membership evidence
Official or controlled checks carry the strongest weight here. Listed, missing, and ambiguous evidence stays visibly weaker than a verified pass.
Public evidence checks
Public evidence shownTrust checks and red flags
Public review evidence5.0★ from 842 public reviewsAcross CheckatradeCheckatradeCity and Guilds
Sources
1 named sourcesEvery signal, traced to its origin
Review sources
Public evidence checks
What's strong, and what to check yourself
✓Strong signals
✓Rating: 5.0★
✓Review volume: 842
✓Verification: Verified
✓1 verified credential
!Worth checking yourself
!Source diversity: 1 source
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.
Good to know
Common questions about Top Plumb
What do customers say about Top Plumb?
Top Plumb has 842 public reviews, averaging 5.0 out of 5. You can read the individual reviews and where each came from in the reviews section above.
Is Top Plumb qualified and accredited?
We hold 1 independently sourced credential for Top Plumb, including City and Guilds. Each is attributed to the body that issued it in the credentials section.
Want an extra legitimacy check?
Run the Cowboy Checker on Top Plumb before you contact them.