Trust AC
See an indicative price for your space online in minutes - no cost, no account, no pressure.
Air conditioning and air-to-air heat pumps
See your air conditioning price in minutes.
Get an online range for home air conditioning, commercial air conditioning, air-to-air heat pumps, servicing, or faults across London, Cambridge, and England.
Home installs from ~£1,500Free online estimate — no account, no pressure.
- Speed
- Price in minutes
- Coverage
- London, Cambridge & England
- No pressure
- Confirmed in writing
Drag the air-con unit and see the comfort impact.Build your room setup, move the indoor unit, and compare cooling, heating, and running-cost assumptions before sending an enquiry.
Service paths
Pick the page that matches what you need before filling the form.
Different needs call for different details. These guides show the installation options and which photos to send before requesting an estimate.
HomeDomestic air conditioning
For bedrooms, living rooms, lofts, conservatories, garden offices, and flats where comfort and noise matter.
- Room size and use
- Indoor wall photo
- Outside pipe run and drainage
BusinessCommercial air conditioning
For shops, offices, treatment rooms, restaurants, and customer areas where disruption and access affect the work.
- Opening hours
- Customer area photos
- Parking and access limits
Heat pumpCooling and heating support
For customers comparing air-to-air heat pump comfort, summer cooling, shoulder-season heating, and running use.
- Insulation and room use
- Daily hours
- Heating expectations
Existing unitServicing, faults, or replacement
For older systems, routine servicing, controller errors, weak cooling, leaks, or replacement decisions.
- Model labels
- Fault symptoms
- Indoor and outdoor access
Comparing quotes
Why can two quotes differ by thousands?
Usually because they cover different work, not because one of them is dishonest. The equipment model, how far the pipework runs, who does the electrical work and what has been left out explain most of the gap — and none of that is visible in the headline number.
How to compare quotesLarge commercial & industrial
Planning a large project?
Design, factory-direct supply and installation for offices, hotels, factories, data centres, pharmaceutical, electronics and more — one accountable partner, backed by an established engineering network.
Explore large projectsWhy Trust AC
Get my priceWe get back to you fast and confirm the price, equipment, and next steps in writing.
Run by the founder, so you get the reasoning behind a recommendation rather than just a number - including when the honest answer is a smaller system than you asked about, or none at all.
How it works
From your details to your price, in four steps
Choose what you need, fill in the basics, see your range, and we'll be in touch.
- 1. Choose what you needTell us 'I know what I need', or let us help you choose the right system.
- 2. Fill in the basicsA few details about your space and your postcode.
- 3. See your price rangeGet an indicative Budget / Standard / Premium range straight away.
- 4. We'll be in touchWe check your details and confirm the final price in writing.
Quick answers
Common questions
Send what you can — there's no pressure. We'll reply with a clear next step.
Can I talk to you in Chinese?
Yes. Trust AC works in English and Chinese, so the enquiry, the estimate and the written quote can all be explained in Chinese. That helps when a parent or another family member is more comfortable in Chinese than in English.
Which areas do you cover?
Trust AC is centred on London and Cambridge and covers England, including Oxford, Reading, Milton Keynes, St Albans, Watford, Brighton, Southampton, Bristol and Birmingham.
How much does air conditioning installation cost?
As a rough UK guide, one room with a single split system is usually £1,500 to £2,500 installed, and two to three rooms on a multi-split usually £3,000 to £8,000 or more. Access, pipe runs and electrical work move the price most. The online estimate gives a range for your own rooms in a few minutes.
Do I need planning permission for air conditioning?
In England, a cooling-only unit needs planning permission. A reversible air-to-air heat pump that is genuinely used to heat the home can be permitted development if it meets the Class G limits. Flats, listed buildings and conservation areas have different rules; the planning permission guide covers them.
Is the site survey free?
Yes. For home installations the survey is free, whether we assess the rooms from your photos or come round in person. You get an expert view of your rooms and a written quote before you commit to anything.
What guarantee comes with the installation?
Two layers. The equipment carries its manufacturer's warranty, and every installation we carry out is backed by our own workmanship guarantee of at least two years. Both are set out in writing with your quote.
Which brands do you install?
The leading Japanese brands — Daikin, Mitsubishi Electric, Fujitsu and Panasonic — supplied through UK distributors. On larger commercial projects we can also supply equipment direct from our partner factories. That sourcing is handled by our sister company Cambridge China Bridge. We recommend what suits the room and the budget, not whatever happens to be in stock.
Can I get a final quote from the website?
No. The website gives an indicative range only. Final price, equipment, access assumptions, and dates are confirmed separately in writing.
Why do photos matter?
Photos show wall positions, pipe run options, drainage, access, current equipment, and anything that may change labour or materials.
Do I need to know the exact air-con model?
No. You can choose 'Help me choose' and describe the room, comfort goal, and site conditions first.
Is payment taken online?
No online payment is taken. Any deposit, payment timing, and appointment details are agreed separately.