Quotes usually come back the same day. Installs are typically booked within one to two weeks - a bit longer at the peak of a heatwave when everyone rings at once. The install itself takes a day for a single room.

Often not. A couple of photos on WhatsApp - the room, the wall you want the unit on and the outside of that wall - is usually enough for a firm price. For multi-room jobs or anything unusual, Ryan will pop round for 20 minutes.

Yes. Every unit we fit is a heat pump. It cools in summer and heats in winter, and it is one of the cheapest ways to warm a single room because it moves heat rather than generating it.

Roughly 15p to 30p an hour on a hot day for a typical room, and less once the room is at temperature. It is far cheaper than a portable unit and, in heating mode, cheaper than most electric heaters.

Indoor units on low fan speed are quieter than a fridge. Outdoor units are mounted on anti-vibration brackets and positioned away from bedroom windows and neighbours. Ryan will talk you through the best spot.

For most houses, one outdoor unit is covered by permitted development and no permission is needed. Flats, listed buildings and conservation areas can be different - and if you rent, you will need your landlord's OK. Ryan will flag anything you should check.

Usually on the outside wall directly behind the indoor unit, on brackets or a small ground stand. It is about the size of a suitcase. Ryan will position it where it works well and looks tidy.

Every unit comes with a manufacturer warranty, which Ryan registers for you. Length depends on the brand and model - he will tell you exactly what applies to your quote. Keeping up with an annual service keeps it valid.

Yes - finance is available on installations, subject to status. Ask when you enquire and Ryan will run through the options. See prices & finance.