Boiler repairs
No heating or hot water, error codes, low pressure, leaks and noisy boilers.

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No heating or hot water, error codes, low pressure, leaks and noisy boilers.
Annual boiler services, and landlord gas safety certificates for every gas appliance in a rented home.
Combi, system and regular boiler replacements, radiators, power flushes and magnetic filters.
Gas work is not a DIY job. By law, anyone working on your boiler, gas fire or hob must be on the Gas Safe Register. Before they start, ask to see their Gas Safe ID card and check the back to confirm they're qualified for your type of appliance.
In Windsor's listed buildings and conservation areas, the hardest part of a boiler job is often where the flue goes. A new flue on a front wall, or a change to a chimney, may need consent, so check with the Royal Borough of Windsor and Maidenhead before you agree a design. Ask each engineer where they'd put the flue and the condensate pipe, and whether a rear or roof flue is possible.
Many of Windsor's period townhouses and terraces have tall rooms, solid walls and old sash windows, so they lose heat quickly. A good engineer will size the boiler and radiators to the house and how you use hot water, rather than simply matching the old boiler. Regular boilers with a hot water cylinder and loft tanks are still common in these homes. In post-war homes in Dedworth, many systems are on their second or third boiler with the original radiators and pipework, where sludge can damage a new boiler unless the system is flushed.
Thames Water supplies Windsor, and the water is hard. Limescale builds up fastest where water is heated. In a combi, that means the plate heat exchanger that makes your hot water. Check every new-boiler quote includes scale protection, a magnetic system filter and inhibitor. If you live near the Thames, keeping the boiler and controls above likely flood levels can save a lot of trouble.
Every rented home with gas needs a landlord gas safety check every 12 months, and a carbon monoxide alarm in any room with a fixed fuel-burning appliance, such as a gas boiler or gas fire. When comparing quotes, check the boiler make and model, the warranty and what keeps it valid, and whether the system will be flushed. Reviews on Trade Pilot come from real, invoiced jobs. If you smell gas, leave the property, turn off the gas at the meter if it's safe to do so, and call 0800 111 999.
| Job | Typical UK range | Notes |
|---|---|---|
| Annual boiler service | £80–£150 | Many warranties need a yearly service |
| Boiler repair, typical fault | £150–£450 | A major part such as the PCB or heat exchanger can cost £400–£750 |
| New combi boiler, like-for-like swap | £2,200–£4,000 | Depends on the brand, flue changes, filter and warranty length |
| New system or regular boiler, like-for-like | £2,500–£4,500 | A new cylinder is extra if needed |
| Landlord gas safety certificate | £65–£110 | Add about £10–£15 for each extra appliance |
| Power flush | £400–£800 | Depends on the number of radiators and the system's condition |
Typical UK ranges; your quotes depend on the job and access.
Check your Windsor postcode and describe what you need. Photos help.
Up to 3 vetted local trades who cover your part of Windsor can quote.
Read reviews from their real, invoiced jobs, compare the quotes, and choose who to invite round. Or choose no one.
We check every engineer before they can quote. Always ask to see a Gas Safe ID card before work starts.
Reviews on Trade Pilot are tied to invoiced jobs, so you’re reading about work that was actually done and paid for.
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