Ethical Plumbing & Heating
across the UK
Every company here has been scored on our 5-pillar Social Ethics Score — verified against Companies House, HMRC records, the Charity Commission, and third-party accreditations. No sponsored rankings. No paid placements.
Employee-owned plumbing and heating company with 68 engineers across the North West. B-Corp certified since 2021. Actively sponsors two community apprenticeship schemes for care leavers and donates 3% of annual profit to local food banks.
9.1
8.8
9.2
9.5
8.4
Specialist in low-carbon heating systems including heat pumps and solar thermal. Pays above Real Living Wage to all 42 staff. Partners with Leeds City Council to retrofit social housing, employing formerly long-term unemployed residents.
8.2
9.0
7.8
8.8
8.0
Community Interest Company providing subsidised plumbing services to elderly and disabled residents in the West Midlands. Employs ex-offenders as part of a structured rehabilitation pathway, in partnership with HMPS.
8.5
9.2
7.2
8.4
7.6
Worker co-operative of 12 Gas Safe registered plumbers, each an equal owner and decision-maker. Pays 18% above Real Living Wage. Offers 25% discounted rates for registered charities and social housing providers. Proud member of Co-operatives UK.
8.2
8.6
7.8
9.2
7.4
Community Interest Company delivering affordable plumbing and heating repairs to households in fuel poverty across Sunderland and County Durham. Works with local councils and housing associations to prioritise elderly and disabled residents. All surplus reinvested into subsidised call-out rates.
8.0
9.2
7.4
8.6
7.8
Residential and commercial plumbing firm based in South London. Living Wage accredited employer paying £14.50/hr to all 19 engineers. All staff receive 5 days paid volunteer leave annually. Partners with Wateraid UK for annual fundraising. Zero zero-hours contracts.
7.8
8.0
7.4
8.8
7.2
Plumbing and heating business that actively employs adults with learning disabilities through a supported work programme developed with Kent County Council. Disability Confident Level 3 employer — one of only a handful of small trades businesses nationally at that level.
7.6
8.0
7.2
8.8
7.0
Edinburgh-based plumbing contractor with full Unite union recognition across all 22 engineers. Effective corporation tax rate of 21.8% — above UK norm. Sponsors a plumbing apprenticeship at Edinburgh College targeting young people from deprived postcodes. Gas Safe and SNIPEF registered.
7.6
7.8
8.2
8.0
7.0
Family-run business with 28 engineers. Disability Confident employer with 4 employees with registered disabilities. Published full gender pay gap data voluntarily. Sponsors local football club and annual schools plumbing outreach programme.
7.6
7.8
7.4
8.2
7.0
Plumbing and heating specialist serving rural Derbyshire and the Peak District. Partners with Age UK Derbyshire to provide subsidised plumbing services for isolated elderly residents. Real Living Wage accredited. All vans run on HVO (hydrotreated vegetable oil) biodiesel.
7.2
7.8
6.8
7.8
6.8
Finding Ethical Plumbing & Heating Companies in the UK
TopTenTrades is the UK's only plumbing & heating directory where rankings are determined entirely by independently verified social ethics criteria — not by who pays for advertising. Every company listed here has been scored across five pillars: governance and mission, community impact, tax responsibility, inclusive employment, and cause promotion.
Why it matters
By choosing verified ethical businesses, consumers and organisations ensure their spend supports employers who treat their people well, pay their fair share of tax, and invest meaningfully back into the communities they serve.