Frequently asked questions

Question 1

Does this replace my boiler or central heating?

Accepted Answer

For a standard self-funded multi-split AC installation, no. It normally works alongside your existing boiler and radiators, providing room-by-room cooling and supplementary heating through wall-mounted units. Air-to-air systems do not usually provide hot water for taps and showers. If you use the Boiler Upgrade Scheme, different rules apply: any existing fossil-fuel heating system must be fully replaced, so your installer must confirm whether the project is eligible.

Question 2

Is this service free?

Accepted Answer

Yes. Our homeowner tools and quote request service are free to use. If you choose an installer introduced through AC Journey, we may receive an introduction fee from that installer, but this does not increase the price you pay or affect which installers you can compare.

Question 3

Do I need a grant?

Accepted Answer

Not necessarily. Many homeowners still pay directly for comfort upgrades. Since 28 April 2026, eligible residential air-to-air heat pump installations in England and Wales can receive a GBP 2,500 Boiler Upgrade Scheme grant, but the scheme is installer-led and has strict eligibility rules. If you're on certain benefits or have a low income, ECO4 or local schemes may also be relevant.

Question 4

What about noise from AC systems?

Accepted Answer

Modern multi-split AC units are very quiet, typically around 19-25 dB indoors. Outdoor units are louder, but a good installer will advise on siting, mounting, and planning considerations so noise is managed properly.

Question 5

How long does installation take?

Accepted Answer

Most simple domestic air conditioning installations take around 1 day for a one or two-room system. Multi-room systems, longer pipe runs, electrical work, access issues, or planning constraints can extend that, so your installer should confirm the timeline after reviewing the site.

Question 6

Will this improve my EPC rating?

Accepted Answer

Possibly, but not in a simple guaranteed way. EPC impact depends on the system, controls, existing heating setup, and how the upgrade is assessed. Treat comfort, running costs, and suitability for your home as the main decision factors rather than EPC uplift alone.

Question 7

How do I choose an installer?

Accepted Answer

Look for relevant certifications. F-Gas certification is important for refrigerant work, and Boiler Upgrade Scheme projects must use an MCS-certified installer. Check recent reviews, compare more than one quote, and ask clear questions about warranties, servicing, controls, and system specification. We help by connecting you with vetted installers so you can compare on a like-for-like basis.

Question 8

Is there 0% VAT on AC/heat pump systems?

Accepted Answer

Fixed, permanently installed air source heat pumps that provide heating, including many reversible AC systems, are currently zero-rated for VAT on installation until 31 March 2027. Portable or moveable units are excluded. Always confirm eligibility with your installer and official HMRC guidance at purchase time.

Question 9

What funding or grants could I get?

Accepted Answer

For eligible homes in England and Wales, the Boiler Upgrade Scheme now offers GBP 2,500 towards air-to-air heat pumps, with the grant deducted upfront by an MCS-certified installer. Eligibility depends on the property, existing heating, and scheme rules. ECO4 has been extended to 31 December 2026 and may help lower-income households with qualifying energy-efficiency measures; local schemes can vary by area.

Question 10

Do I need planning permission?

Accepted Answer

Many installations are permitted development, but only if all limits and conditions are met. In England, this includes rules on outdoor unit size, number of units, listed buildings, conservation areas, MCS planning standards, and not using the system solely for cooling. Rules differ across the UK, so your installer should advise on siting and local requirements before work begins.

Question 11

Can I control AC from my phone?

Accepted Answer

Yes. Most modern systems offer Wi-Fi connectivity via built-in modules or optional add-ons. Manufacturer apps let you adjust temperature, switch modes, and set schedules remotely. Ask your installer if the quote includes Wi-Fi; it is sometimes an optional extra.

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