Stuart Mundy — F-Gas Qualified Engineer·Updated 28 June 2026·6 min read
Every question we get asked before, during and after an air conditioning installation, answered in one place. Can't find yours? Call 07850 116944 and ask Stuart directly.
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General & Suitability
Whether air conditioning makes sense for your home or situation.
Is air conditioning worth it in the UK?
Increasingly, yes. UK summers now regularly include multi-day spells above 28–30°C, and homes built for retaining heat in winter often struggle to cool down naturally. Air conditioning also runs in reverse to provide efficient heating, so it's rarely a cooling-only purchase — many homeowners use it more in winter than summer.
Can I install air conditioning in a flat or rented property?
In a rented property, written permission from the landlord is required before any installation, since it involves drilling through an external wall and fitting an outdoor unit. In a flat, leasehold restrictions or management company rules may also apply to external alterations. Stuart can talk through what's realistic for your specific property during a free survey.
Do I need planning permission for air conditioning in Wokingham?
Most domestic split air conditioning installations fall under permitted development and don't require planning permission, provided the outdoor condenser meets size and placement rules and the property isn't listed or in a conservation area. Checked as part of the free survey.
What's the difference between single-split and multi-split air conditioning?
A single-split system has one indoor unit and one outdoor condenser, cooling one room. A multi-split system connects several indoor units to a single outdoor condenser, cooling multiple rooms independently. See our system comparison →
Can air conditioning also provide heating?
Most modern split systems, including the Bosch, Daikin and Mitsubishi ranges we install, are reverse-cycle — providing efficient heating as well as cooling from the same unit.
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Cost & Sizing
Pricing, what affects it, and getting the size right.
How much does air conditioning cost to install in Wokingham?
Single-room systems typically run £1,600–£2,500. Multi-split systems covering 2–4+ rooms range from £3,200 up to £8,500+. Exact pricing is confirmed after a free on-site survey. See the full pricing table →
What can push the air conditioning price higher?
Standard quotes assume a back-to-back install. Three things commonly add cost: longer pipe runs through lofts or external walls, a condensate pump if gravity drainage isn't possible, and a new electrical supply line if your consumer unit lacks capacity.
How long does air conditioning installation take?
A single split system is typically installed in a day. Multi-split systems with several indoor units usually take one to two days, depending on pipe runs and the number of rooms.
What size air conditioning unit do I need?
A rough guide is room area in square feet multiplied by 25 BTU, adjusted for sun exposure, kitchen use and occupancy. A free survey gives an exact recommendation rather than a guide figure — call 07850 116944 and Stuart can talk you through it.
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Comfort & Noise
What it's actually like living with air conditioning day to day.
How noisy is air conditioning?
Modern indoor units typically run at a similar noise level to a quiet conversation, and outdoor units are designed to meet noise limits relevant to permitted development. Noise levels vary by brand and model, which Stuart can discuss as part of the survey if it's a concern.
Does air conditioning dry out the air?
Air conditioning does remove some humidity from the air as part of the cooling process, which is normal and generally makes a room feel more comfortable rather than uncomfortably dry. An oversized, poorly specified unit is more likely to cause noticeable dryness than a correctly sized one.
Is air conditioning bad for your health?
Properly installed and regularly serviced air conditioning is not inherently bad for health. Issues typically arise from poor maintenance, such as a dirty filter circulating dust, rather than from air conditioning itself. Annual servicing keeps the system clean and running as intended.
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Servicing & Upkeep
Keeping a system running well for years, not just on installation day.
Does air conditioning need an annual service?
Yes. Annual servicing keeps the system efficient and protects the manufacturer warranty. A service includes a filter clean, refrigerant level check, condensate drain clear and a full performance test. From £96.
How long does an air conditioning unit last?
A well-installed, annually serviced split air conditioning system typically lasts 10–15 years. Skipping servicing or running an undersized unit constantly under strain can shorten this considerably.
Do I need to clean the filters myself?
Yes, indoor unit filters should be checked and rinsed every few weeks during heavy use, which most homeowners can do themselves following the manufacturer's instructions. The annual service covers a deeper clean and checks the parts that aren't user-accessible, such as refrigerant levels and drainage.
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Qualifications, Brands & VAT
Who's doing the work, what they're fitting, and the tax side of things.
Is Thermotec qualified to work with refrigerant?
Yes. Stuart is F-Gas qualified and registered, a legal requirement for anyone installing or servicing equipment containing refrigerant in the UK.
What brands of air conditioning does Thermotec install?
Thermotec installs Bosch, Daikin and Mitsubishi systems across Wokingham and Berkshire, all of which offer reverse-cycle heating and cooling from the same unit.
Is 0% VAT available on air conditioning installation?
0% VAT is available on qualifying energy-saving installations. Eligibility depends on the specific installation and current government rules, which Stuart can confirm during your free survey.
Still have a question? If it's not covered here, the fastest way to get a straight answer is to call Stuart directly on 07850 116944 or book a free survey — most questions about your specific property are easier to answer in person anyway.