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Your Trusted HVAC Contractors in Gloucester
Established over 35 years ago, Neptune Building Services Building Services has built a reputation as a reliable provider of mechanical and electrical solutions across the South West. Our expertise spans heating, ventilation, air conditioning, electrical systems, and renewable technologies, delivered through a combination of seasoned professionals and a robust apprenticeship programme. With a team of 27 office-based staff and 50 site operatives, we manage projects from initial design to commissioning, working in partnership with major main contractors.

Our focus on quality, safety, and sustainability ensures projects are completed to programme while maintaining competitive affordability. The company achieves an annual turnover exceeding 10 million, underscoring our position as a trusted partner for complex M&E requirements in sectors ranging from education to healthcare.
Services
Plumbing Heating Air Conditioning Ventilation Renewable Technologies Electrical Wiring Lighting Solutions
Highlights and features
  • 40 years' experience in mechanical and electrical services
  • Established apprenticeship programme developing skilled engineers
  • In-house qualified technicians for renewable technologies
  • Proven track record with major main contractors
  • Expertise in comfort cooling systems for complex projects
Services
Air Conditioning
Our air conditioning solutions combine precision engineering with energy efficiency to deliver optimal indoor climates for commercial and residential properties. With specialist expertise in comfort cooling systems, we design and install tailored HVAC solutions that meet exacting performance standards while ensuring regulatory compliance. Our team maintains full project oversight from concept to commissioning.
Renewable Technologies
We implement sustainable energy systems including ground and air source heat pumps, photovoltaic installations, and solar thermal solutions. Our in-house qualified technicians ensure seamless integration with existing building services while maximising energy efficiency and reducing carbon footprints through innovative renewable technology applications.
Electrical Wiring
Comprehensive electrical installation services covering wiring, small power distribution, and control systems for new builds and refurbishment projects. Our qualified electricians deliver safe, code-compliant solutions tailored to commercial, educational, and healthcare environments while maintaining strict adherence to BS 7671 standards.
Ventilation
We design and install mechanical ventilation systems that ensure optimal indoor air quality and thermal comfort. Our solutions incorporate heat recovery systems and demand-controlled ventilation to enhance energy efficiency while meeting building regulations for residential care facilities, schools, and commercial premises.
Plumbing
Full-spectrum plumbing services encompassing hot and cold water systems, gas installations, and sanitary pipework. Our senior craftpersons deliver reliable solutions for new developments and retrofit projects, maintaining strict compliance with Water Supply (Water Fittings) Regulations and industry safety standards.
Questions
What sectors do Neptune Building Services Building Services Building Services operate in?
We work across education, healthcare, commercial, residential care, and hospitality sectors, delivering mechanical and electrical solutions for new builds and refurbishment projects.
Do you offer renewable energy system installations?
Yes, we specialise in renewable technologies including ground and air source heat pumps, solar thermal systems, and photovoltaic installations with in-house technical expertise.
How does the company ensure workforce development?
Through our established apprenticeship programme that trains engineers, electricians, and plumbers who often progress to supervisory roles within the company.
What project sizes do you handle?
We manage projects ranging from small domestic housing schemes to large-scale commercial developments and educational facilities with design-build contracts.
Are your engineers qualified for gas installations?
Yes, our plumbing team includes Gas Safe registered engineers qualified to install and maintain gas systems in residential and commercial properties.