1st Choice for Mechanical Services

F. G. Fennell set up their mechanical division in 2012, our vision is that our clients will consider us ‘1st Choice’ in meeting their mechanical services needs with their new and existing properties throughout the Eastern region.

Electrical planning

Unequalled Quality, Sensible and Practical Designs

We will strive to be ‘1st Choice’ by providing unequalled quality, sensible and practical designs, and dedicated performance on all projects. A committed management team built upon fairness and integrity execute these commitments while working to provide a safe and enjoyable place to work for our employees.


One Stop Shop – Mechanical and Electrical

Together with our associated company, Lowestoft Electrical Co Limited we can provide a ‘One Stop Shop’ for you all your mechanical and electrical requirements.
Contact Keith and his team for a free no obligation quotation or impartial advise.

Mechanical Services

Heating Systems
Heat Recovery Systems
Air Conditioning Systems
Gas Safety Checks
Gas & Oil Pipeline Installations
Process Pipework and Installation
Plumbing Services
Water Treatment
Solar Thermal Panels
Air and Ground Source Heat Pumps
Biomass Boilers
Rainwater Harvesting
Building Management Systems
Underfloor Heating

Our operating philosophy is simple

      • To provide a unique customer focused service
      • To work in partnership
      • Safety is paramount, to carry out safe operations
      • To determine best value
      • We strive to be honest, open and reliable at all times
      • Actively encourage our employees to believe in our mission and to continue their personal development
      • FGF is committed to the philosophy of partnering with the entire supply chain to ensure the smooth running and completion of all projects


What Client’s Say

Thank you very much for the quality job and for the emergency call out to stop the water leak. We will happily recommend your services.
N Denoon
I wish to thank your company and your service engineer for responding so quickly to my call for assistance when a water pipe in my loft sprang a leak. I am certain your prompt action saved me from a far larger bill, and for this I am most grateful to you. With every good wish for Christmas and the New Year.
B Penfold
Thank you very much for your dedication and excellent workmanship, your kindness and professionalism.
S Legood
I am writing to express our great appreciation for the way in which you carried out the work to install our new boiler and the associated work.
We would like you to know that we found your engineer (Nick) excellent in every way. He conducted himself politely and was aware of our need to keep disruption to a minimum. We found his workmanship to be of a very high standard and he left us feeling confident in our new system and knowledgeable about how it functions. These high standards carried through to the way in which he restored the brickwork surrounding the flue in a very sensitive manner.
We should be grateful is you would pass our compliments and thanks to him.
N S Ward