Diamond AC Limited
PORTSMOUTH, Hampshire
Checkatrade member since February 2022
Services
- Air Conditioning Installation
- Air Conditioning Repair
- Air Conditioning Servicing
- Emergency Air Conditioning Service
Customer Reviews
Write a review9.9 /10
Based on 56 reviews over the past 12 months
Quality of work
9.96
Reliability
9.96
Communication
9.96
What customers are saying
AI-generated from customer reviews over last 24 months
Customers consistently praise this trade for their professionalism, excellent communication, and high-quality installations. They are frequently complimented for being punctual, tidy, and respectful of their homes.
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Reviews (260)
- GGraeme K
10 Great communication very speedy no hassle.
Posted 1 week ago
Had 3 units fitted work was done quickly one unit was out of stock but Andrew kept us well informed and in the loop. The guys that fitted it were great, were very respectful of the house put plenty of sheets down and cleaned up after themselves could not have asked for better serviceVerified reviewerJob location: PO15Response from Diamond AC Limited
Thank you for your kind words and the time taken to leave us a review. We hope you enjoy your AC SYSTEMS ⭐️❄️🙌🏻💎🤩🩵
10 Chuffed!
Posted 1 week ago
Really chuffed with the work by Diamond AC. Came out really quickly and gave the most competitive quote. Unfortunately on the day of the work, the area outside was incredibly muddy after weeks of rain has delayed the building of a concrete path. The team put plastic sheeting down on the carpet and left the house spotless. The outside trunking and unit looks really tidy. The courtesy messages checking 100% happy before the invoice was also a nice touch. Will definitely recommend and will be using for future work.Verified reviewerJob location: SO30Response from Diamond AC Limited
Thank you for leaving a fabulous review we really appreciate it. We hope dad enjoys his cool summer ! 😎🙏🏻❄️⭐️💎👏🏻⭐️
10 Brilliant job
Posted 1 week ago
Job location: SO30Brilliant tidy job- considering we are still living on a building site and the weather delayed the finishing of the external part of the build, Andy’s team did a fantastic professional job, no mud or mess on our brand new carpets. Fantastic ac unit fitted to the annex ensures that our old dad will always be the perfect temperature.Response from Diamond AC Limited
Thank you for your kind words taken Jenny we hope you are all good and doing well. Always here if needed take care 🙏🏻🩵⭐️💎🙌🏻❄️
10 Top Service From a Top Company again
Posted 06 February
Used Diamond AC & Andy for a second time now having another unit fitted in the Living Room. Again as before after completion was clean and faultless more than happy.Verified reviewerJob location: PO8Response from Diamond AC Limited
Thank you for taking the time to leave us a review we know how busy you were, We really appreciate your return custom.💎🙏🏻❄️
10 Very easy to deal with and helpful nothing a problem.
Posted 31 January
Very helpful and knowledgable nothing was to much trouble for Andy, we would use again without hesitation. We had an issue with cold and damp in our garden office rooms. We now have heating and cooling also a dehumidify mode. Thank you.Verified reviewerJob location: GU30Response from Diamond AC Limited
You’re welcome Tyler and thank you for looking after us ! 💎❄️👏🏻🤩 Always here if needed
10 Amazing Service ⭐️⭐️⭐️⭐️⭐️
Posted 26 December 2025
Wow…..we called on Diamond AC on Christmas Eve as we had no heating they were with us in under an hour and resolved in ten minutes with what was embarrassingly a fault on our part in not using it in the right mode but that aside the service and response was unbelievable and we couldn't recommend Andy enough. We will be saving his number for any future problems in the future.Verified reviewerJob location: PO6Response from Diamond AC Limited
❄️😊🙏🏻💎
Photos
Company Info
Owner
Mr. Andrew Pearson
Ltd Company
4 years on Checkatrade
VAT Registered
No
For over 22 years, we have been fitting Air Conditioning to homes, offices, and even the Spinnaker Tower. From new systems, fault finding and repairs, we cover all aspects of Air Conditioning.
Our Inverter Air-to-Air Heat Pumps are very economical & come complete with a 7-year warranty as standard on our Mitsubishi systems. Please see our past reviews from hundreds of happy customers & contact us today for a free quotation. We truly do believe that the service we offer is second to none, leaving your home just as we found it…like it was our own.
We specialise ONLY in Air Conditioning, we are not a Gas & Heating / Electrical Company jumping into the AC market… All reviews are for installed Air Conditioning, not Gas boilers, Plumbing & Heating. We accept cash, bank transfer, and all cards, Apple Pay, etc.
We have over 1,300 followers on our Facebook page, where we catalogue all of our works completed, plus special offers.
We can be very transparent with all we do & who we are. Take a look at all our latest works completed and offers/info.
- Air Conditioning/Comfort Cooling/Climate Control
- Fault Finding & Repairs
- 7 Years warranty on all our Mitsubishi systems as registered Diamond Dealers.
- Inverter Heat Pumps are 300%-400% more efficient on energy use.
Call us for a free quotation.
Follow Us on Facebook. https://www.facebook.com/DIAMONDAIRCONDITIONING
Accreditations and awards
This trade passed up to 12 Checkatrade vetting checks
Member since February 2022
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Qualifications and accreditations
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