Gas Safe registered installation and replacement of condensing combi, system, and regular boilers — fixed pricing, same-day quotes, and a 10-year workmanship guarantee.
Whether you need a straight swap or a full system redesign, our Gas Safe engineers fit A-rated condensing boilers from trusted manufacturers, all backed by manufacturer and workmanship warranties.
Heating and hot water from one compact unit — ideal for flats and smaller homes with one bathroom.
Works with a hot water cylinder, suited to homes with multiple bathrooms and higher hot water demand.
Best for homes replacing an existing heat-only system with a separate cylinder and tank.
| Boiler types | Combi, system, regular (heat-only) |
| Efficiency rating | A-rated condensing (94%+) |
| Output range | 24kW–42kW domestic |
| Install time | 1 day typical, 2 days complex |
| Manufacturer warranty | Up to 12 years |
| Workmanship guarantee | 10 years |
| Smart thermostat | Included on request |
A new gas condensing boiler typically costs between £1,800 and £3,500 fully installed, depending on output size, brand, and whether it's a straight swap or requires repositioning and additional pipework.
Most straightforward boiler replacements are completed in a single day. More complex installs, such as moving the boiler location or upgrading the flue, may take 1–2 days.
Boiler size depends on your property's heat demand, number of radiators, and hot water usage. Our Gas Safe engineers carry out a heat loss calculation during survey to recommend the correct kW output.
Same-day quotes, Gas Safe registered engineers, fixed pricing — no surprises.