# Gas engineers in Welwyn Garden City

3 gas engineers near Welwyn Garden City, ranked by the strength of independent public evidence. Trust Score is used when available, drawing on reviews, credential evidence and registry data from named public sources, cross-checked wherever more than one source covers a business. No ads, no paid placement. Grouped by main trade first, then businesses that also offer this trade, with possibly closed businesses last. Highest Trust Score first within each group. All 3 are listed below, ranked by evidence.

| Trader | Location | Trust Score | Rating | Reviews | Named sources | Listed under |
| --- | --- | --- | --- | --- | --- | --- |
| [Coool Heating & Plumbing Services](https://mytrustedtraders.com/traders/coool-heating-plumbing-services) | Welwyn Garden City | 44/100 | 5.0/5 | 29 | Checkatrade | Also offer this trade |
| [Castle Heating Herts Ltd](https://mytrustedtraders.com/traders/castle-heating-herts-ltd-2) | Welwyn Garden City | 20/100 | 3.3/5 | 257 | Checkatrade, Companies House | Also offer this trade |
| [Fosters Electrics Ltd](https://mytrustedtraders.com/traders/fosters-electrics-ltd-2) | Welwyn Garden City | Not shown | 5.0/5 | 18 | Checkatrade, Companies House | Also offer this trade |

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

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Source: MyTrustedTraders. https://mytrustedtraders.com/find/gas-engineer/welwyn-garden-city
Real public evidence only: every figure traces to a named source, and figures are cross-checked wherever more than one independent source covers the same business. If a source does not carry a field, it is not shown.