Boiler installation in West London

New combi, system and regular boilers supplied and fitted across West London, with a fixed written price before we start and the old unit taken away.

• Fixed price quoted in writing, not an estimate that moves
• All major brands: Worcester Bosch, Vaillant, Ideal, Baxi, Glow-worm
• Old boiler removed and disposed of as part of the job
• Manufacturer warranty registered in your name on the day
• System flushed and inhibitor dosed so the warranty stands up
• Building regulations notification handled for you

Choosing the right boiler

Most West London homes end up on a combi, because they suit a flat or a two or three bedroom house with one bathroom and they free up the cupboard where the cylinder used to sit. Where there are two bathrooms and a family all showering at once, a system boiler with a cylinder usually gives a better result, because a combi has to heat water on demand and there is a limit to how much it can do at once.

We will tell you which one actually fits your house rather than which one has the biggest margin on it. Oversizing a boiler is one of the commonest mistakes in the trade and it costs you money every month in gas you did not need to burn.

What happens on the day

A straight swap, taking an old combi off the wall and putting a new one in the same place, is normally a single day. Moving the boiler to a different wall, converting from a conventional system to a combi, or replacing a cylinder alongside it will usually run to two days. We will tell you which it is at the quote stage so you can plan around the hot water being off.

Floors get covered, the system gets flushed before the new boiler goes on, and the controls get set up and explained before we leave. The paperwork, including the Building Regulations compliance certificate, follows within a few days.

Boiler packages

Rather than pushing one brand, we quote across a range of packages so you can weigh up price against warranty. Every one of them includes the boiler, the flue and a system filter, so you are comparing like with like rather than finding the filter added on at the end.

• 5-year warranty packages — Glow-worm Compact and Main Eco Compact, in outputs from 24kW up to 30kW. Solid, well-supported boilers and the most cost-effective way to get a reliable new unit on the wall.
• Mid-range — Worcester Bosch Greenstar 1000, with the Worcester filter and telescopic flue. A step up in build and parts availability.
• 10-year warranty packages — Vaillant ecoFIT Pure and Worcester Bosch Greenstar 4000, in 25kW and 30kW. The longest cover available and the ones we would put in our own homes.

Which output you need depends on the property and how many bathrooms it serves, not on budget, so we will tell you the right size first and then show you the options at that size.

What can add to a job

A few things occasionally come up once we look properly, and we would rather flag them up front than surprise you on the day: a power flush where the system is heavily sludged, replacing thermostatic radiator valves that have seized, and upgrading the gas supply pipe where it is undersized for the new boiler. None of these are added without asking you first, and all of them are priced in the written quote before any work starts.

Why the flush matters

Manufacturers will not honour a warranty on a boiler fitted to a dirty system, and they are within their rights. Old iron radiators shed sludge, and that sludge ends up in the heat exchanger of a brand new boiler. Every install we do includes cleaning the system properly and dosing it with inhibitor. On older systems with cold spots at the bottom of the radiators we will recommend a full power flush and explain why before you commit to it.