Advice & insights

Straight-talking advice on home comfort.

Hotter summers, rising bills, confusing planning rules — home heating and cooling has never had more questions. Here are honest answers from the Custom Comfort team.

Costs

How much does whole-house air conditioning cost in the UK?

Split, multi-split and ducted prices for 2026 — plus the whole-home system that heats and cools too.

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Period homes

Discreet air conditioning for period & listed homes

Cool and heat an older home without external units — and stay the right side of the rules.

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Retrofit

Retrofitting heating & cooling into an older home

Why small-duct high-velocity is the retrofit-friendly way to add whole-home comfort.

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Comfort

Heat & cool your home without radiators or wall units

The real options for clear walls and year-round comfort — and the one that does both.

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The system

Small-duct high-velocity systems explained

What SDHV is, how it works, and whether it's right for your UK home.

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Buying guide

Is home air conditioning worth it in the UK? (2026)

UK air-con use has jumped ~90% in two years. We weigh it up — and the option most people don’t know about.

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Running costs

What does it cost to run air conditioning at home?

Portable vs split vs heat-pump cooling — the real running costs, and how to cool (and heat) for less.

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Planning & rules

Do you need planning permission for air conditioning?

Councils are ordering homeowners to remove outdoor units. Here’s how discreet systems sidestep it.

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Renewables

Heat pumps that also cool: the upgrade homes are missing

Most UK heat pumps only heat. Here’s how to unlock efficient summer cooling too.

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Air quality

Can air conditioning help with allergies & condensation?

How filtration and heat-recovery ventilation tackle dust, pollen and damp.

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Heatwave tips

How to keep your house cool in a heatwave

Nine practical tips — plus the whole-home fix that needs no box on your wall.

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New build

New-build overheating & Part O: what to know

Designing comfort and compliance into your build from day one.

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The system

Heat, cool & ventilate with one system

Why small-duct high-velocity beats radiators plus a portable unit.

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