Phase One Mechanical & Electrical Ltd
Air Conditioning Specialists - Property. Phase One Mechanical & Electrical Ltd has been vetted and approved by TrustATrader. Covering Southampton, Portsmouth, Winchester and all surrounding areas.
Membership number TT23125
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Register GuaranteeAbout Phase One Mechanical & Electrical Ltd, Southampton
Phase One Mechanical & Electrical Ltd are an air conditioning company providing high quality commercial and domestic air conditioning installation services in Southampton. We support homeowners and businesses across the local area with systems designed for comfort, efficiency and everyday reliability.
Our team has many years of experience and we work to high specifications to help you get genuine value from your air conditioning and cooling system. We take time to understand your requirements and recommend the right air conditioning setup for your property. Our specialists, NAC Mechanical Ltd carry out relevant air conditioning installation, maintenance, servicing, repairs and emergency callouts, including:-
- Cold Rooms
- Cellar Cooling
- Offices
- Domestic Properties
- Commercial Properties
- Air Conditioning Services
- Repairs
- Callouts
To discuss your air conditioning installation in Southampton & the surrounding areas, or your air conditioning maintenance and emergency callout needs, please use the contact details above to get in touch.
Please mention TrustATrader when you get in touch.
FGAS Certification completed by NAC Mechanical Ltd.
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Phase One Mechanical & Electrical Ltd
- Identification checked
- Company address verified
- Customer references checked
- Agreed to TrustATrader's high standards
- Agreed to complaints procedure
Insurance details
| Provider | Simply Business |
|---|---|
| Verified | 6th August 2026 |
Hampshire
Qualifications
- NAPIT - Competent Person Scheme
- Gas Safe Register
Reviews (27)
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Average rating: 5.0 out of 5
Review by George
on 22nd June 2026
"I would have no hesitation in recommending Dominic and Phase One Mechanical & Electrical Ltd. From the initial site visit through to completion, Dominic was professional, knowledgeable and a pleasure to deal with. He took the time to assess the installation properly, explain the available options, and recommend a sensible long-term solution rather than simply the minimum required to obtain a satisfactory EICR. Communication was excellent throughout, the workmanship was of a very high standard, and the new consumer unit installation was completed neatly, efficiently and with great attention to detail. Everything was tested, certified and left clean and tidy. It is refreshing to find an electrician who combines technical expertise with excellent customer service. I will certainly use Phase One again for future electrical work and would happily recommend them to others."
- Initial impression Initial impression: 5 out of 5.0
- Punctuality Punctuality: 5 out of 5.0
- Cleanliness Cleanliness: 5 out of 5.0
- Quality Quality: 5 out of 5.0
- Value Value: 5 out of 5.0
- Overall opinion Overall opinion: 5 out of 5.0
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Average rating: 5.0 out of 5
Review by Nick Collins
on 17th March 2026
"Highly recommend Phase One, great service all round!"
- Initial impression Initial impression: 5 out of 5.0
- Punctuality Punctuality: 5 out of 5.0
- Cleanliness Cleanliness: 5 out of 5.0
- Quality Quality: 5 out of 5.0
- Value Value: 5 out of 5.0
- Overall opinion Overall opinion: 5 out of 5.0
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Average rating: 5.0 out of 5
Review by Sunny Kenth
on 27th February 2026
"I hired Phase One Mechanical & Electrical Ltd to upgrade and replace a 1970s consumer unit to meet current regulations. They provided a quote quickly and scheduled the work within a week. The job was completed on time, to a good standard, and stayed within the original quote. They also sent the EIC and EICR the same day. I’d happily use them again and would recommend their services. Thank you!"
- Initial impression Initial impression: 5 out of 5.0
- Punctuality Punctuality: 5 out of 5.0
- Cleanliness Cleanliness: 5 out of 5.0
- Quality Quality: 5 out of 5.0
- Value Value: 5 out of 5.0
- Overall opinion Overall opinion: 5 out of 5.0
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Average rating: 5.0 out of 5
Review by Steph
on 23rd January 2026
"Very happy with the installation of my smoke alarms, Bailey was punctual, friendly and professional. Highly recommended"
- Initial impression Initial impression: 5 out of 5.0
- Punctuality Punctuality: 5 out of 5.0
- Cleanliness Cleanliness: 5 out of 5.0
- Quality Quality: 5 out of 5.0
- Value Value: 5 out of 5.0
- Overall opinion Overall opinion: 5 out of 5.0