Frequently Asked Questions

Zephyr Climate is based in Hounslow and covers West London and the surrounding areas, including the W, TW, UB, HA and SW postcodes and out across the M25. If you are unsure whether your postcode is in patch, drop a message and Zak will confirm before booking a survey.

Yes. Zak is F-Gas Category 1 certified. Every system is installed, commissioned, and documented to current regulations, and the handover pack you get at the end includes the records you need for warranty and resale.

No. Zephyr Climate is install only, no servicing contracts and no maintenance retainers. That focus is deliberate and it is how the install standard stays consistent. For ongoing servicing once the system is in, ask Zak for a recommended servicing engineer at handover.

Zak works seven days, 07:00 to 18:00. Surveys and installs are booked by appointment so the day is planned around your access and the rest of the job list.

Yes. A survey is the only reliable way to give an accurate price, and the quote is free, fixed, and itemised so you can see what you are paying for. No upsells, no surprises.

Payment is taken on completion of the install, by bank transfer or card. For multi-room or HMO packages, staged payments can be arranged at survey stage so the cash flow lines up with the project.

A standard single split is a one-day install in most properties, assuming reasonable access and the electrical supply is ready.

In most cases no. A single condenser usually falls under permitted development if it is not on a wall facing a road, stays under the size limit, and is more than a metre from the boundary. Listed buildings and conservation areas are the exception, so those get checked first.

Yes. Modern split units are heat pumps, so the same indoor head cools in summer and heats in winter, usually cheaper to run than an electric heater for the same room.

Most domestic single-split installs land between £1,900 and £2,900 supplied and fitted. The fixed price comes back after the survey, so you only commit once the spec and the price are clear.

Modern indoor units run very quietly in normal mode and you tend to forget they are on. The outdoor condenser has a louder mode at start-up or under heavy load, which is why the survey looks at where the condenser sits relative to bedrooms, windows, and neighbours.

One outdoor unit serving several rooms saves wall space, reduces external clutter, and is usually neater and cheaper than multiple condensers once you get past two rooms.

Only up to the capacity of the outdoor unit, and the system has to be specced for it from the start. If expansion is likely, the outdoor unit gets sized for it on day one.

Multi-split installs typically run between £4,000 and £8,000 depending on the room count, the indoor head sizes, and the pipework runs. The fixed quote comes back after survey.

Most multi-split installs are two to four days on site, depending on room count and the complexity of the pipework runs. The day-by-day plan is shared with you before work starts.

Yes. Each indoor head has its own controller, so every room can be set to a different temperature and mode within the limits of what the outdoor unit can deliver in total.

Cooling and heating in one unit adds real letting appeal and tenant comfort, and a clean install protects you on wear and complaints. Done as a package across multiple rooms, the per-room cost drops significantly compared with one-off retrofits.

That sits with the tenant or your managing agent. Zephyr Climate is install only, but every handover includes clear instructions you can attach to the tenancy paperwork so the maintenance line is easy to enforce.

Yes. HMO and landlord packages are quoted as one fixed price for the whole property after survey, so you can budget the project as a single line, not a stack of small jobs.

Often yes, room by room, with access agreed in advance. Where possible the survey plans the install order so the most disruptive rooms come first and the property is left clean each evening.

Every install comes with the F-Gas install and commissioning paperwork, plus written handover instructions you can attach to the tenancy file. That covers what tenants need to know and the records you need for warranty and resale.

Yes. Modern AC units are heat pumps, so the same unit cools in summer and heats in winter, usually cheaper to run than an electric heater.

Not if it is done properly. Cabling and pipework get run and sealed to spec so the building stays weathertight and the warranty stays valid.

Most garden room and home office installs land between £1,800 and £3,000, supplied and fitted. The fixed quote comes back after a quick survey of the room and the outdoor location.

Properly sized to the room, you usually feel the change inside a few minutes and the room is at target temperature inside the first half hour. Right-sizing at survey is the bit that matters here.

No. The condenser is designed to sit outside and has to discharge heat to outside air. We will agree a sensible external location at survey, usually on the back or side wall, with the cabling routed neatly through to the indoor unit.