Commercial engineers at work on building services
Gas Safe · NICEIC · F-Gas · City & Guilds

Total Facilities Management & On-Demand Building Support

Reliable commercial maintenance contracts and fast-response one-off repairs tailored to your premises.

Fully accredited and certified

Gas Safe Register

Registered gas engineers

NICEIC Approved

Electrical safety certified

F-Gas Certified

Refrigerant handling qualified

City & Guilds

Qualified plumbing engineers

Our Services

End-to-end building services for homes and businesses across the UK.

AC & Cooling

AC & Cooling

Supply, installation, maintenance, and repair of domestic and commercial air conditioning systems. From single split units to full VRF systems.

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Boiler & Heating

Boiler & Heating

Gas Safe registered engineers for boiler installation, servicing, and repair. Central heating systems for homes and commercial premises.

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Electrics

Electrics

NICEIC approved electrical contractors. Rewires, consumer unit upgrades, EICRs, and full commercial electrical fit-outs.

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Ventilation

Ventilation

Design, installation, and maintenance of mechanical ventilation and heat recovery systems for residential and commercial buildings.

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Plumbing & Drainage

Plumbing & Drainage

Commercial and domestic plumbing, drainage, and pipework — from leak repairs and bathroom installations to full drainage surveys and remediation.

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Why Choose Reliance Commercial

UK-wide

Coverage

Domestic and commercial projects across England, Scotland, and Wales

5 Disciplines

Under one roof

AC, heating, electrics, ventilation, and plumbing — one contractor, one point of contact

Fully Accredited

Gas Safe, NICEIC & F-Gas

All engineers hold current industry certifications and are regularly audited

Our Accreditations

Every engineer is certified. Every job is compliant.

Gas Safe Register

Registered gas engineers

NICEIC Approved

Electrical safety certified

F-Gas Certified

Refrigerant handling qualified

City & Guilds

Qualified plumbing engineers

Ready to get started?

Whether you need a one-off repair, a planned maintenance contract, or a full building services fit-out — we're here to help.