Warm winters. Cool summers. Lower bills.

From your audit to a finished installation, a single-room cooling project typically takes 6 to 10 weeks, a heating project 8 to 14 weeks, and a whole-home project 12 to 28 weeks. Most of that time is design and approvals. The physical installation usually takes 1 to 3 weeks on site. Listed buildings, conservation areas, ground-source projects and complex period properties can take longer — we tell you upfront if your project falls into this category.

No. We design the full system but installation can be staged across phases if needed. We'll recommend a sequence that protects your savings target.

The two main grants are the Boiler Upgrade Scheme, which provides £7,500 toward a heat pump installation (or £2,500 for air-to-air systems), plus zero-rated VAT on all energy-efficient home upgrades. Lower-income households may also qualify for the Warm Homes: Local Grant. Your Climate Score identifies exactly what your home qualifies for. We apply for the grants on your behalf — you don't deal with any paperwork.

A climate-ready home commands a meaningful premium. Most of our completed projects add more in value than they cost. We'll show you the projected resale uplift in your design.

Yes — we regularly partner with architects on refurbishments and extensions. But most of our projects are direct with homeowners, no architect required. Either works — talk to us early either way.

Every installation carries a 6-year workmanship guarantee, underwritten by an independent insurer, plus manufacturer product warranties of 5 to 10 years. On top of that, our Comfort Promise: if your designed system doesn't deliver the agreed indoor temperatures in winter or summer, we come back and fix it at our cost. You only ever deal with Climateway, not the installers. We manage every contractor on your behalf. Full details on our /guarantees page.

We model your projected savings using your home's design and current energy prices, and we share that modelling with you transparently before you sign. But your actual bills depend on factors outside our control — your energy tariff, how you use the system, weather, and energy market prices. We commit to designing the most efficient system possible for your home, and to delivering the comfort temperatures we agree. We can't guarantee a specific bill outcome and no honest installer can.

Installers. Real engineering, real equipment, real homes. We don't sell offsets or carbon credits. Your savings come from your home actually using less energy.

We work across all of London, the Home Counties and Oxfordshire. In London: Notting Hill, Kensington, Chelsea, Fulham, Hammersmith, Chiswick, Richmond, Wimbledon, Wandsworth, Battersea, Clapham, Balham, Dulwich, Peckham, Brixton, Camberwell, Greenwich, Blackheath, Islington, Hackney, Shoreditch, Camden, Kentish Town, Hampstead, Highgate, Muswell Hill, Crouch End, Stoke Newington, Kilburn, Maida Vale, St John's Wood, Marylebone, Belgravia, Pimlico, Mayfair. In the Home Counties: Guildford, Cobham, Weybridge, Esher, Oxshott, Woking, Ripley, Godalming, Farnham, Haslemere, Sevenoaks, Tunbridge Wells, Westerham, Tonbridge, Oxted, Reigate, Redhill, Dorking, Epsom, Leatherhead, Beaconsfield, Gerrards Cross, Amersham, Chorleywood, Chalfont St Giles, Marlow, Henley-on-Thames, Cookham, Sonning, Ascot, Sunningdale, Virginia Water, Windsor, Wentworth, Radlett, Harpenden, St Albans, Berkhamsted, Tring, Chesham. In Oxfordshire: Oxford, Henley-on-Thames, Thame, Wallingford, Wantage, Abingdon, Woodstock, Chipping Norton, Burford, Witney. If you're not sure whether we cover you, ask — our network is growing, and we're expanding into the Cotswolds and West Country through 2027.