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Welcome to Group GA

Whatever your electrical, mechanical, heating or plumbing challenge, we are ready to help.

Based in Wallingford, Oxfordshire, our dedicated team of experienced electricians, mechanical engineers and plumbers are on hand to cater for all your building service needs. Whether you are one of our valued local homeowners, a contractor or local business, school or college, you will receive the same high quality and efficient service.

Our success stems from a combination of building service expertise and quality craftsmanship together with a commitment to caring for our customers, always being flexible to their needs. We undertake to provide a professional, friendly, caring and reliable service that you can trust. We have the resources and the capability to undertake Electrical Installation Condition Reports (EICR) for everything from a bungalow to a complex site as big as Heathrow Airport, across Oxfordshire and beyond. Our plumbers can service or upgrade your household boiler and our mechanical engineers can maintain or replace a large scale industrial plant room.

We are Team GA. Large enough to cope, small enough to care.


We worked with GA Electrical and Mechanical on a prominent grade 2 listed house refurbishment in Henley-on-Thames. The project lasted over 12months and involved a great deal of detailed electrical and lighting works. The finished project is second to none and a testament to the team involved. GA were proactive and professional throughout.

Robert Kennedy - Spratley Studios

I was slightly apprehensive about having a home generator that would be used in the event of a power cut. I need not have worried as I received invaluable guidance from Leigh Vink regarding the purchase of the generator and the cost of the installation.

Keith Robinson - Benson

Our thanks to Glenn Dearlove and his team at GA Electrical and Mechanical. When we needed additional sockets installing in 3 bedrooms, Glenn provided a quotation within 24 hours and offered to have the work completed within 48 hours which suited us admirably.

Richard Alliston - Finance Advice

I was delighted to be working again with GA Electrical and Mechanical at Strodes College. Once again the entire team performed to a very high standard and we managed to hand over an excellent new teaching facility to the school on time.

Warren Brown - Dawnus Construction

A massive thank you for all your teams professionalism with the recent electrical works at Lunda and my home in New Yatt. You have played a key role in helping Lynda achieve her goal.

Alan Verrinder - Action Coach

May I express my appreciation for all the hard work and conscientious approach that GA have provided for our project at Alvescot. I am particularly impressed with your approach to the job.

Gordan Freeman - Savills

As a company we have always found GA Electrical and Mechanical to be professional, competent and price competitive with an extremely high ethic in producing the very best installation for their client.

John Woods - Glenhurst