Air Conditioning Installation in West London
Daikin & Mitsubishi certified installers. Proper system design, clean installation, full warranty.
DEH & P Ltd installs split air conditioning systems for homeowners across West London and Surrey. We work with Daikin and Mitsubishi — two of the most reliable brands on the market.
Every installation includes a free site survey, correct system sizing, and professional commissioning. No shortcuts, no oversized units, no mess left behind.
Daikin & Mitsubishi approved installers - Free site survey included
- Correct load calculation for every room
- Clean trunking and hidden pipework
- Full manufacturer warranty
- Covering TW18 and surrounding areas
Air conditioning is no longer a luxury — it’s a practical solution for overheating bedrooms, home offices, and open-plan living spaces.
A correctly sized split system will cool a room in minutes, run quietly, and cost less to operate than you expect. Most single-room installations are completed in one day.
Why Choose DEH & P Ltd for Air Conditioning?
Frequently Asked Questions — Air Conditioning
Most single-room split system installations are completed in one day. This includes mounting the indoor unit, installing the outdoor unit, running pipework and electrics, and commissioning the system.
We install Daikin and Mitsubishi Electric systems — both are industry leaders with proven reliability, quiet operation, and strong manufacturer warranties.
In most cases, no. Domestic AC installations in England are permitted development. Exceptions apply to listed buildings and some conservation areas. We advise on this during the free site survey.
A modern inverter split system typically costs £0.10–£0.20 per hour to run. Compared to portable units, fixed split systems are significantly more efficient.
Yes. Most modern split systems operate in both cooling and heating modes, working efficiently as supplementary heating down to around -15°C outside.
What Our Customers Say
James R.
March 2025
DEH & P installed a Daikin split system in our bedroom. Clean installation, no mess, unit is whisper quiet. Exactly what we needed for the hot summer months.
Sarah M.
January 2025
Professional from start to finish. They surveyed the property, recommended the right size unit, and completed the installation in one day. Very happy with the result.
Tom H.
February 2025
Had a Mitsubishi unit fitted in my home office. Works perfectly in both cooling and heating mode. DEH & P were on time, tidy, and knew exactly what they were doing.
Linda K.
December 2024
Great service. The team explained everything clearly before starting. The pipework is neatly trunked and the indoor unit looks great on the wall. Highly recommend.
Claire B.
October 2024
Quick response to my enquiry, free site survey within days, and installation booked the following week. The whole process was smooth and stress-free.
Mike P.
November 2024
We had two rooms done at the same time. Both installations were completed in one day. Very competitive pricing and excellent workmanship.
Get a Free AC Survey
Book a free no-obligation site survey. We cover West London and Surrey. Most installations completed in one day.
Mobile: 07888781043