Mechanical & electrical contractors
Small enough to care. Big enough to cope.
From replacing a tap washer to rewiring an office block, we really can do it all. Electrical, plumbing, heating and renewables for homes, businesses and industry across Cornwall & West Devon.
- NICEIC Approved
- Gas Safe registered
- MCS certified Solar PV
- Daikin approved service partner

Approved by
Our accreditationsDomestic · Commercial · Industrial
One team for every mechanical & electrical job
Davey & Gilbert provide mechanical & electrical services for the domestic, commercial and industrial sectors throughout Cornwall & West Devon, from our offices in Penzance and Truro.
Whether it’s adding a socket outlet in your lounge, a new boiler, a solar PV array or designing and installing the electrical installation for an office block, our fully qualified engineers handle it from the first conversation to the final certificate.
Our engineers are fully qualified to work on
- Gas, domestic (mains & LPG)
- Gas, commercial (mains & LPG)
- Oil
- Electricity
- Renewables


2003
Incorporated
What we do
Keeping customers switched on
Electrical
Fire alarms, PAT testing, emergency lighting, CCTV, EV charging points and more.
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Plumbing
Emergency leak repairs, showers, water heaters, bathroom refurbishments and more.
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Heating
Natural gas & LPG boilers, underfloor heating, air conditioning and more.
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Certification
Electrical, gas, oil & Legionella certification and more.
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Renewables
Solar PV (photovoltaic), solar hot water (solar thermal) and air source heat pumps.
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Renewables
Clean energy, installed properly
We have installed lots of different types of Solar PV systems up to 100kWp on all kinds of buildings, as well as large commercial ground mounted installations. As Daikin approved service partners we install, service and repair air source heat pumps across Cornwall.
25
full time engineers and administrators, many with us for more than 15 years
100kWp
Solar PV installations up to 100kWp, plus large ground mounted arrays
2
offices, in Penzance and Truro
10yr
up to 10 years parts & labour warranty on a new Worcester boiler
How we work
From conception to completion
We aim to offer a quality, innovative, cost effective solution to every M&E requirement by working with you collaboratively at every stage.
- 01
Talk it through
Call either office, or call in and make free use of our meeting room, where we can discuss your project and demonstrate many of the products we specify and install.
- 02
Design
Electrical and mechanical installation design services in house, from Building Management Systems to lighting layouts drawn up in CAD.
- 03
Install
Fully qualified, time served engineers deliver the work, tidily and to the standards of NICEIC, Gas Safe and MCS.
- 04
Look after it
Breakdown fault finding, servicing and regular maintenance, plus the testing and certification that keep you compliant.
Clients say
You are only as good as your last job
“Just a quick email to pass on our thanks to your guys Lewis & Rob who installed the siren system at the Lizard on Thurs & Friday. This wasn’t a run of the mill job but they took it in their stride and the install looks very tidy.”
“Had a new boiler installed, plus various other little things that needed doing to get the system working correctly. Great job done quickly and efficiently, cleaned up well, lovely guys. Thank you very much!”
“Simon and his apprentice were a pleasure to have doing the work. They were very punctual and hard working. Nothing was too much trouble and the end result displayed a high standard of workmanship. They were diligent in clearing up and a credit to your Company.”
“Excellent response time and the engineer that came out was really friendly and helpful. Not only did he fix the fault but serviced the boiler as well, would highly recommend their services!”
“Recently had a coolant leak from my Air Source Heat Pump, Mr Pickhaver arrived exactly when he said he would. Talked me through what the problem was and how he was going to fix it, completed the work in no time. Great job done, highly recommended!!”
“Thanks, your men did a Top Job with no dramas, Great Guys.”
Where we work
On call when you need us most
Mechanical & electrical engineers available to respond quickly to your emergencies, throughout Cornwall & West Devon.
Head office
Penzance
Unit 1, Pensans, Rospeath Industrial Estate, Crowlas, Penzance, Cornwall TR20 8DU01736 332749Let’s talk about your project
Call either office or send us the details and we’ll come back to you with a no obligation quotation.














