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Business Details
34 Years
experience
Trusted Building Services in Wallingford
Group GA has been delivering comprehensive building services since 1992, combining technical expertise with a client-centric approach. Our in-house teams specialise in electrical, mechanical, and renewable energy solutions, alongside fire safety, security systems, and smart home automation. With over three decades of experience, we prioritise long-term project sustainability by integrating maintenance considerations from the initial design phase. Our collaborative approach extends to partnerships with architects, contractors, and private clients, ensuring tailored solutions that meet evolving industry standards. Certified by MCS for renewable energy installations, we maintain rigorous quality control across residential, commercial, and industrial projects.

Our commitment to innovation is matched by our dedication to transparency, with clear communication throughout every project lifecycle. As an employer, we cultivate talent through apprenticeships, creating a skilled workforce with deep institutional knowledge. Sustainability remains central to our operations, influencing design decisions and material choices. This holistic strategy has established enduring relationships with clients who value our problem-solving capabilities and attention to detail.
Services
Electrical Mechanical Renewable Small works Fire Security Audio Visual Maintenance BMS
Details
  • Year established: 1992
Highlights and features
  • We have over 30 years of experience in building services across residential and commercial sectors
  • Our in-house multi-discipline teams ensure coordinated project delivery from design to maintenance
  • MCS accredited renewable energy specialists with proven installation expertise
  • Apprenticeship-trained workforce maintaining industry-leading technical standards
  • We consider whole-life project sustainability from initial design through installation
Associations and certifications
  • MCS
What people say
Exceptional service Technical excellence Responsive team Long-term partnerships Sustainable solutions
Services
Electrical
Our electrical services cover infrastructure projects, LED upgrades, and bespoke wiring for luxury homes, commercial spaces, and historic buildings. We provide full lifecycle support from design through installation to maintenance. Our engineers handle complex projects including power supplies, lighting systems, and data networking while maintaining strict safety standards. Clients benefit from our 30 years of experience and network of specialist partners.
Mechanical
We deliver comprehensive mechanical services including plumbing, heating, ventilation, and air conditioning systems for residential and commercial properties. Our qualified engineers specialise in plant room installations and BMS integration while maintaining traditional craftsmanship. The team provides design consultation, system upgrades, and preventative maintenance. Our approach combines technical expertise with practical problem-solving for both new builds and heritage projects.
Renewable
As MCS-accredited specialists, we install ground-source heat pumps, solar PV systems, and mechanical ventilation heat recovery units. Our renewable solutions focus on energy efficiency for residential and commercial properties while maintaining aesthetic integration. We provide full project management from feasibility studies through installation to ongoing maintenance. Our expertise spans both modern developments and historic buildings requiring sensitive retrofitting.
Fire
We offer complete fire protection services including alarm systems, sprinkler installations, and fire door solutions. Our team ensures compliance with current regulations while providing retrofitting options for existing properties. Services include conventional and addressable fire alarm systems, smoke control solutions, and aspirating fire detection. We maintain technical expertise in both residential and commercial fire safety requirements.
Security
Our security solutions include CCTV networks, intruder alarms, and access control systems for residential and commercial properties. We specialise in 4K video door access systems and perimeter intrusion detection. The team provides system design, installation, and maintenance services while maintaining technical currency with evolving security technology. Our approach balances advanced protection with user-friendly operation.
Questions
What building services does Group GA specialise in?
We provide electrical, mechanical, renewable energy, fire safety, security systems, smart home automation, and maintenance services for residential and commercial properties.
Are Group GA's renewable energy installations certified?
Yes, our renewable energy team holds MCS accreditation for heat pump and solar PV installations, ensuring compliance with industry standards.
Do you handle both large and small projects?
We accommodate projects of all sizes, from minor repairs to comprehensive commercial installations, maintaining the same high standards across all work.
How does Group GA approach project maintenance?
We consider maintenance requirements from initial design stages and provide ongoing support through regular inspections, testing, and preventative maintenance programs.
What areas do Group GA serve?
While based in Wallingford, we operate across Oxfordshire, London, and the South East England region for both residential and commercial projects.