Fitted properly.
Serviced for life.
Discreet Daikin air conditioning that heats as well as it cools, for homes across Beaconsfield, Gerrards Cross, Marlow, Amersham, High Wycombe and nearby villages. One room from £2,400, then Chillston Care looks after it every year from £12 a month.
It starts with a 15-minute call with Samuel.
One room, or the whole house
Single-room comfort
Whole-home multi-split
Two to five rooms from one quiet outdoor unit. Fitted in two or three days.
Servicing & repair
For systems we fitted and ones we didn't. Filters and coils cleaned, drain tested, joints leak-checked, performance recorded. Written report every visit.
A fixed price, in writing, before anything is ordered. A 30% deposit to go ahead; the rest once the system is working. Our workmanship is guaranteed for two years, or five while you’re a Chillston Care member.
You will see it every day for fifteen years
Daikin Perfera
White and softly rounded. It sits quietly in a bedroom or study, and it’s the most efficient of the three.
- White
Daikin Stylish
189 mm deep, the slimmest of the three: good above a bed or under a sloping ceiling. Eight finishes, from white to wood-, fabric- and leather-effect.
- White
- Silver
- Black
- Two woods
- Two fabrics
- Leather
Daikin Emura
Curved front and back, 90 cm wide, and made to be looked at: for a sitting room or a kitchen.
- Matt white
- Silver
- Matt black
Every finish and size, side by side →
And outside? Out of sight where the house allows, agreed at the survey. Where the unit and the pipes go →
“The person who surveys your home is the person who installs your system, and the person who answers if you call next summer.”
Samuel — Founder & Engineer
- One person, survey to aftercare. Samuel surveys, leads the install and looks after it afterwards.
- Fitted properly. Five checks on every job, and every reading recorded.
- Looked after every year. Chillston Care books your Health Check service.
- Clear prices, up front. Shown on this page, and fixed in writing before anything is ordered.
- Your house treated with care. Dust sheets the whole way. If we mark anything, we put it right at our cost.
Five things to check on any quote
Each one is invisible on the day, and expensive later.
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Heat load
Every room measured: volume, glazing, which way it faces.
Guesswork oversizes the unit: clammy, costly to run, and short cycles shorten its life.
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Sound
Worked out for your neighbours’ windows and doors, and shown on your quote.
The limit is 37 dB(A), by the MCS 020 a) method that permitted development requires. Skipped, one complaint can move the unit at your cost.
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Planning
Your address checked against the national register at the survey.
Conservation areas and Article 4 directions change where a unit may go.
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Pipework
Pressure-tested with nitrogen, then held under vacuum to prove it’s sealed and dry. Any refrigerant we add is weighed in. You get every reading.
Moisture and the wrong amount of refrigerant are leading causes of compressor failure. Neither shows on the day.
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Electrics
Carried out and certified by a registered electrician, notified under Part P.
The certificate comes in their name, not ours.
The same five things, every single time
This is our process, written down and the same on every job — one bedroom or a whole house.
- Every wall scanned before it is drilled. Cables and pipes found first, never discovered.
- Overshoes from the front door. On and off every time we come in, all day.
- Dust sheets the whole way — hall, stairs, landing, room. Not just under the ladder.
- Core dust caught at the wall as it is drilled, rather than swept off your carpet afterwards.
- Everything leaves with us — packaging, offcuts, and the old unit if there is one.
If we mark anything, we put it right at our cost.
How the day goes
Six drawings, from the dust sheets going down to the handover. Tap through them, or swipe.
A room usually takes a day, a whole house two or three. We confirm the day in writing beforehand, with a short list of what helps: clear space where each unit goes, and access to your fuse box and, if the pipes go through it, your loft.
- Call15 minutesSamuel rings at a time you pick. Tell him about the rooms.
- Survey45 minutes, freeEvery room measured, planning and noise checked. You choose the units and where they go.
- QuoteWithin 24 hoursFixed and itemised. To go ahead, you pay a 30% deposit.
- Install and handoverA day for a roomTwo or three for a house. You get the commissioning record, our guarantee and the handover pack.
- Looked afterEvery yearChillston Care books your Health Check service. Each report goes on Your Chillston Home.
You won’t have to remember
We book your Health Check service every year.
Clean filters and coils, and leaks caught early, give the same comfort on less electricity: lower bills, lower carbon.
- Your yearly service record, which Daikin’s warranty asks for on systems we fit
- Members first when we’re busiest
- One call-out a year, no charge to attend
- 15% off repairs
- Our workmanship guarantee for five years, not two, on systems we fit
For one indoor unit, plus £3 a month for each extra unit.
That’s £144 a year: less than one £175 Health Check service on its own.
Cancel any time
Our first 50 members keep this price for as long as they’re members.
Before you ask
Isn’t air conditioning bad for the environment?
It has an impact in two ways: the electricity it uses, and its refrigerant if it ever escapes. So we size every room properly and weigh any refrigerant we add, and a yearly Health Check service helps catch dirt and leaks early. Our systems use R32, which has about a third of the global warming potential of R410A, the refrigerant in many older systems. And for heating, each unit of electricity gives three to four units of warmth.
What does it cost to run?
For cooling, Daikin rate a 2.5 kW Perfera at about 90 units of electricity a year, and a Stylish or Emura of the same size at about 100: around £24 to £26 a year at 26p a unit. For heating, every unit of electricity gives three to four units of warmth, so it costs a quarter to a third as much as a plug-in electric heater, and about the same as gas central heating. What it costs you depends on how you use it, so take these as a guide rather than a promise.
Is the electrical work included?
Yes. Every installation includes a dedicated circuit, installed and certified by a registered electrician and notified under Part P — the certificate comes to you in their name. The one thing that can change the price is your consumer unit. If there's a spare way, it's covered by the quoted price. If it's full, or old enough to need replacing, a new one is from £400 on top — and we tell you at the survey, not on install day.
Do I need planning permission?
Usually not. The rules changed on 29 May 2025 and most domestic air conditioning is now permitted development — the outdoor unit size limit went up, the one-metre boundary rule went, and systems that heat as well as cool were brought inside the rules. The main things that still change the answer are a cooling-only system and a listed building. We check your address as part of the free survey, before anything is ordered. Read the full guide →
Tell us about the room
A free survey at your home, then a fixed written quote within 24 hours.
No obligation. You will get the quote and the time to think about it.
Prefer to talk? Call 01494 312303 — or email a photo of the room to samuel@chillston.com.
Samuel rings from 01494 312303. Need to move it? Reply to the confirmation email.
Booked
A confirmation is on its way to your inbox. If it would help, have a think about which rooms you are considering before we speak.
The Chilterns and surrounding villages
Choose your town for local detail — or get in touch wherever you are in the Chilterns.