The honest answer is "it depends" — so here's exactly what it depends on, what a good quote includes, and how to compare prices fairly.
Anyone who quotes a firm price for a new boiler or heating job without seeing your system is guessing. The real cost depends on the boiler you choose, where it goes, and the condition of the system it connects to. Two homes the same size can be hundreds of pounds apart.
Rather than give you a number that turns out to be wrong, here's what actually drives the price — so when you do get a quote, you'll understand every line of it.
A combi boiler heats water on demand and suits smaller homes; a system or regular boiler with a cylinder suits larger homes with several bathrooms. Switching from one type to another costs more than a like-for-like swap because it means new pipework, tanks, or controls.
Budget, mid-range, and premium brands sit at different price points, and so do the warranties that come with them. A longer manufacturer's warranty often costs a little more up front but can save money over the boiler's life.
Fitting the new boiler in the same spot as the old one is the quickest job. Moving it to a different room or wall means new gas, water, and flue runs, which adds labour and materials.
An older system may need a chemical flush, a power flush, or a magnetic filter fitted to protect the new boiler. Tired radiators, valves, or pipework sometimes need replacing too — skipping this is the fastest route to repeat breakdowns.
For a repair, the cost comes down to the fault and the parts needed. Sometimes a economical repair makes sense; other times an old, inefficient boiler is better replaced. We'll give you an honest view either way, not just the bigger job.
Smart thermostats, thermostatic radiator valves, and zone controls add to the up-front cost but improve comfort and cut running bills. They're optional extras worth weighing up at the same time.
An annual service and, for landlords, a gas safety certificate (CP12) are priced per visit and per appliance. Multiple appliances or properties affect the total — landlord rates usually apply for several certificates together.
Awkward access, upper-floor flue work, or an out-of-hours emergency call-out can affect how long a job takes and when we attend. Most local work is straightforward; we'll flag anything unusual up front.
Tell us what you need and we'll assess your system and give you a clear, no-obligation quote — every line explained.
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