Air Conditioning Guides & Costs
Straight answers with 2026 numbers: what installation and running really cost, which system and brand to pick, and what the planning rules actually say. Research here, then compare quotes from vetted, F-Gas certified engineers.
Every guide in one place
Eight guides covering the questions we're asked most, kept current with 2026 pricing.
Installation cost UK
Full 2026 price breakdown — from £1,800–£2,500 for a typical single split to ducted whole-house budgets, and what moves the number.
Running costs UK
What cooling really costs per hour at 2026 electricity prices, and how heat-pump heating changes the annual maths.
Servicing cost UK
Per-visit and contract pricing, what a proper service includes, and the warranty small print that makes servicing non-optional.
Best brands UK
Daikin to Samsung: the tiers, the warranty differences, and why installer accreditation matters as much as the badge.
Split vs multi-split vs ducted
The three system architectures compared on cost, disruption, looks and flexibility — and how to pick for your property.
Planning permission UK
Permitted development limits for domestic units, the conservation-area and listed-building exceptions, and what installers check.
Commercial cost UK
Per-kW and per-m² benchmarks for VRF and office fit-outs, plus the TM44 and F-Gas compliance costs businesses forget.
Air conditioning vs heat pump
Air-to-air vs air-to-water: efficiency, grants (and who isn't eligible), and which technology fits which home.
What the guides cover
Money first. The cost guides give you defensible 2026 numbers before anyone quotes you: installation from £1,500–£3,000 for a single split through to £7,000–£15,000+ ducted; running costs around 18–23p per hour of cooling; servicing at £75–£150 per unit. Most fixed home installations also carry 0% VAT until 31 March 2027 under the energy-saving materials relief, which trims the effective price your installer quotes. Walk into any quote conversation knowing the going rate.
Then the choices. The comparison guides — system types, brands, air con vs heat pump — are for the decisions that are hard to reverse later. Getting the architecture right matters more than shaving a hundred pounds off the hardware.
Then the rules. Planning permission and commercial compliance (TM44 inspections, F-Gas records) are cheap to get right and expensive to get wrong; the guides tell you what applies before work starts.
Every figure across the library uses the same 2026 baselines, so numbers agree wherever you read them — and when you're ready, the same button works everywhere: free quotes from vetted, F-Gas certified engineers.
Frequently asked questions
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