Window Air Conditioners
A window air conditioner is a single self-contained unit that sits in a window opening, so there's no outdoor condenser and no F-gas refrigerant pipework to fit. That makes it genuinely DIY-friendly — many homeowners install one themselves in an afternoon.
Window units suit flats, rented properties and any room where a split system's outdoor unit isn't practical. The trade-off is a little more in-room noise, since the compressor sits inside the unit.
Why choose a window air conditioner
- No outdoor unit — the whole system fits in the window frame
- Self-installable — no F-gas engineer required
- Compact and ideal for flats and rented homes
- Plug in and cool the same day
All window air conditioners
Window Air Conditioners — frequently asked
Can I install a window air conditioner myself?
Yes. Because a window unit is sealed at the factory, there are no refrigerant lines to connect, so no certified engineer is needed. Most models slot into a standard sash or sliding window with the supplied side panels and weather sealing.
Will it fit my window?
Check the unit's dimensions against your window opening. Most window units are designed for standard vertical-sash or sliding windows and include adjustable side panels to fill the gap. Always measure before ordering.
Are window units noisy?
They're louder than a split system because the compressor is in the room rather than outdoors, but modern inverter window units are far quieter than older mechanical models. Check the noise (dB) figure on the product page.