Welcome to our 5-minute guide to boiler repair costs.
Alongside a table with boiler part replacement costs, we’ve covered when you should replace your boiler, rather than repair it.
And, we’ve also included a small section on how to protect your boiler at the end of the article.
Before we go any further, you can book in an engineer to offer an boiler replacement quote, and a price estimate for repairs here.
Below we’ve created a table that highlights the average replacement cost of boiler parts. These prices are all estimates.
Depending on the model, brand and type of boiler, the replacement parts will vary in price. And, heating engineers in various parts of the country will charge different prices.
The repair costs below include both parts and labour.
Boiler Part To Be Replaced
|Air Pressure Switch||£200|
|Automatic Air Vent||£170|
The above prices are estimates for fixed price repairs.
If you don’t know the problem with your boiler, it’s likely you’ll need a Gas Safe engineer to come and diagnose the problem before fitting replacement parts.
The hourly rate for a Gas Safe engineer will depend on a few things.
The first, is the time of the day.
For example, is your call outside of normal working hours and considered an emergency? This is going to increase the hourly rate considerably.
The second, is the part of the UK you’re based in.
Hourly rates for Gas Safe engineers in London can be almost double that of other parts of the UK.
Finally, the size of the company you choose to use.
Large national firms can charge 30-50% more than a local engineer.
All said, expect to pay £50-60 per hour for a diagnostic. And then, expect to pay for the fixed price repair on top of this.
Some boiler parts can be reconditioned, cleaned or fixed; they don’t always have to be replaced.
A typical example might be a boiler pump that is leaking. In many cases, simply swapping the seals will fix the leak.
However, it’s worth consulting your heating engineer.
If one component in a boiler part has failed, it’s likely others will follow.
And, the time for labour is usually better spent replacing the entire part, in this case, the pump.
There’s a few things to consider before repairing a boiler, and one is whether a replacement boiler is going to be more cost effective in the long run.
Deciding whether to replace rather than repair a boiler will be determined by:
If your boiler is 5+ years old and out of warranty, it’s worth considering a replacement rather than a repair.
Boiler manufacturers place certain levels of warranty on their products for a reason; beyond the warranty they start to fail and become expensive to run.
Investing in boiler repairs for a unit that is on its way out is rarely worth the money.
The next thing to consider is the condition of other expensive boiler parts. If they look like they are in good condition, repairing the faulty part is worthwhile.
However, if an engineer feels some or all of these parts are on their way out, a replacement should be considered.
The most expensive and important parts to consider checking for wear and damage include:
Next, you’ll want to consider the cost of the actual repair.
Small repairs in the £100-200 range are worth the investment.
But spending £300-500 on an old boiler, with no warranty and the chance of other components failing; it’s time to consider a replacement.
A typical example of a part that sway many to replace their boiler rather than repair it, is a faulty or broken PCB.
A replacement PCB could cost £350-500 to install, depending on the type of boiler you have.
That’s a lot of money to be investing in an old boiler that is already proving that it’s on its last legs.
If we take a 3-4-bedroom property, looking for a reasonably sized combi boiler, you could expect to pay £1800-£2000 for a replacement.
In this case, something like the Ideal Logic Plus with a 7-year warranty would be perfect.
Consider also, newer boilers are around 90% efficient; old boilers are not.
So, newer units can offer savings of around £200 per year.
Over the course of the next 7-years, you’d actually save the majority of your investment on utility bills alone, and be covered by warranty over that period.
This is something a lot of people don’t consider.
There are a few ways to protect your boiler:
If none of the above are currently fitted, your boiler has been exposed.
Most manufacturer’s warranties will be void if central heating inhibitor isn’t added – that’s how important it is.
And, limescale can find its way to the heat exchanger, create hotspots, and cause it to crack.
Finally, rust and dirt (known as central heating sludge) can block not just radiators, but also parts in the boiler like the heat exchanger and pump.
Essentially, if none of the above boiler protection precautions are in place, even without a visual inspection, there’s a good chance your boiler is better off being replaced.
Once it has been replaced, fit the above devices to help protect your new boiler.
Thanks for reading our 5-minute guide to boiler repair costs. Need quotes for repairs or a replacement boiler? Book in quotes here.
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