# Heating engineers in City

3 heating engineers near City, ranked by the strength of independent public evidence (Trust score when available, with reviews, credential evidence and registry data cross-checked across named public sources — no ads, no paid placement). All 3 are listed below, ranked by evidence.

| Trader | Location | Trust score | Rating | Reviews | Named sources |
| --- | --- | --- | --- | --- | --- |
| [Castle Heating Herts Ltd](https://mytrustedtraders.com/traders/castle-heating-herts-ltd-2) | Welwyn Garden City | 66/100 | 3.3/5 | 257 | Checkatrade, Companies House |
| [Heatwave Plumbing Services Ltd](https://mytrustedtraders.com/traders/heatwave-plumbing-services-ltd-2) | Derby | 57/100 | 4.9/5 | 3 | Checkatrade, Companies House |
| [Blue Whale Plumbing And Heating Ltd](https://mytrustedtraders.com/traders/blue-whale-plumbing-and-heating-ltd-2) | Letchworth Garden City | 57/100 | 4.8/5 | 3 | Checkatrade, Companies House |

Each trader's full public evidence is at its profile URL (append `/md` for a Markdown version). See all heating engineers in the United Kingdom at `https://mytrustedtraders.com/find/heating-engineer`.

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Source: MyTrustedTraders — https://mytrustedtraders.com/find/heating-engineer/city
Real public evidence only: every figure traces to a named source and is cross-checked. If a source does not carry a field, it is not shown.