Central Heating, Boiler Repairs & Installation

Boiler Repairs & Central Heating Breakdowns

As you might have guessed by the name, Thames Boilers are boiler and central heating specialists.

Here are some of the services we can offer you.

Combi Boiler Repairs

While great at saving you space, combi boilers can be tricky to repair when they breakdown if your heating engineer isn't a specialist.

I've been fixing combination boilers for almost 20 years and am experienced in all makes and models. So you can be confident I'll get your boiler working again for you.

Condensing Boiler Breakdowns

If your boiler was installed after April 2005, it's very likely a condensing boiler. They work slightly differently to older non-condensing boilers, which means they have their own type of faults.

I've been installing and repairing condensing boilers long before they were popular, going as far back as the first ones in the 90s. So if your condensing boiler has broken down, I'm confident I can fix it for you.

Back Boiler Repairs

Back boilers used to be very popular, but as technology moves on, they're being replaced with new energy efficient condensing boilers.

Maybe you have one and are not ready to replace it just yet? At Thames Boilers, you can get your back boiler repaired and fully serviced. This means you can keep it going for many more years - as long as it's safe and parts are still available.

Free Call Outs, Free Estimates, and Simple Fixed Prices

Vaillant Logo

Vaillant Boiler Repairs

Thames Boilers are specialists in repairing and servicing Vaillant boilers. I'm familiar with all models, including the Ecotec, Ecomax, and Turbomax range. I've attended training from Vaillant themselves at their UK headquarters.

Worcester Bosch Boiler Repairs

Like with Vaillant, I'm experienced in servicing and repairing Worcester Bosch boilers too. Whether you have a new Worcester Greenstar condensing boiler, or an older Cdi - or any other model, I can help you with servicing it and getting it working if it's broken down.

Potterton Boiler Repairs

Potterton & Baxi boilers are very popular around the Dartford area, especially in more newly built homes. Potterton models such as the Suprima and the Performa and getting to the age where they're likely to break down. If you own one of these models - or any other Potterton boiler - please get in touch if you need it serviced or repaired.

Baxi Boiler Repairs

Baxi and Potterton are pretty much the same company and, these days, make identical boilers. It's great for heating engineers like me because it's easier to obtain parts for them. This wasn't always the case though. Before the merger with Potterton, Baxi were famous for making back boilers (a boiler that sits behind your gas fire) called a Baxi Bermuda.

Ideal Boiler Repairs

Ideal are a long established British boiler manufacturer, like Baxi & Potterton. Ideal boilers used to be great. That all changed when they launched their Icos and Isar range in the 2000's. These boilers make up most of the Ideal boilers I get called out to, because they're so unreliable. Since then, Ideal have improved their boilers and will perhaps one day earn back their old reputation.

New Central Heating Pumps

The pump is the heart of your central heating system. If it fails, nothing else will work. Symptoms of a broken central heating pump are: Some radiators getting hot, but not others; Your boiler overheating; Banging noises coming from your boiler or your airing cupboard. It's quite easy to replace most pumps, so if yours goes wrong, don't hesitate to call for a free estimate.

2 & 3 Port Valve Replacements

Also called Motorised Valves, these parts control when your heating and hot water turn on and off. When they go wrong, they can give you call kinds of symptoms. The 2 most common ones are your heating coming on with your hot water, or your heating not coming on at all (even when you turn the thermostat up). Like your central heating pump, these are reasonably easy parts to replace, and usually can be completed in a couple of hours.

New & Replacement Boilers With 7 Year Warranties

Sometimes a boiler is beyond economical repair, or the parts you need for it are not available anymore. Or maybe you're doing some home improvements and decide it's time to upgrade the boiler.

Here's how I can help you...

Combi Boiler Replacements

This is when you have a combi boiler and would just like a new one fitted in the same place. These are the most straight forward and lowest cost boiler replacements. Most people have this type of boiler change carried out when their old combi boiler is just too old to be repaired anymore.

Boiler Upgrades

A boiler upgrade is when you need something more than a straight replacement. For instance, you may have an old back boiler and would like to upgrade to a modern combi boiler to help save some money. Or you plan to have a loft extension and need a better boiler to cope with an additional bathroom.

Central Heating Installation

This is where your whole heating system is removed, including your boiler, pipes and radiators - and replaced with a whole new one. People don't usually have this work carried out unless they're completely renovating their home, or their old system is so bad (or poorly designed) that replacing the whole thing is their best option.

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Free Boiler Quote

Replacing your boiler or upgrading your heating system is big job and not to be taken lightly. I recommend doing some research and getting a few quotes before your do anything. This'll help you get a feel for what you need and how much it'll cost. I'd be delighted to give you a free quote and give you personal advice from my 20 years experience. Just call me to arrange a suitable appointment to assess your current system. After that, I'll send you a written, itemised quote for you to consider.

7 Year Warranty

If you choose to have a Vaillant or Ideal boiler installed, you will get a 7 year parts and labour warranty from the boiler manufacturer's themselves. Or if you choose a Worcester Bosch or Viessmann boiler, you will get a 5 year manufacturer's warranty. The only condition of all these guarantees is that the boiler is serviced once a year by a Gas Safe registered engineer.

Boiler Servicing

It's important to service your boiler once a year to keep it working safely and efficiently. You can also spot small problems before they turn into big expensive ones.

Condensing Boiler Service

Condensing boilers need to be serviced a little differently to conventional boilers. On some services they may need a gasket replacing (often called a "burner seal"). These are usually an additional £20-£30. Also, condensing boilers have a part on them called a "condensate trap". This needs to be checked and cleaned as part of the service.

Combi Boiler Service

Combi boilers can be serviced just like any other boiler. Despite their additional components, servicing these boilers is quite straight forward. It's also a good opportunity to catch any problems, like small water leaks, before they do too much damage.

Back Boiler Servicing

If you have a back boiler, it's important to service it every year. This is because older back boilers have flue system called an "open flue". These systems are safe when installed properly and correctly maintained. But if they're not, there's a high risk of your boiler producing deadly carbon monoxide. I recommend servicing your back boiler once a year, without fail. 

Hot Water Cylinder Installation & Repair

Unvented Hot Water Cylinders

Unvented hot water cylinders usually suffer from 2 types of faults.

The first is problems with the safety valves. This is usually cause by wear and tear. You'll probably notice these faults when the overflow pipe near your cylinder (called the pressure relief pipe) is running. Fixing these faults is simply a case of tracing which safety valve is at fault and replacing it.

The second type of problem is with your immersion heaters. Either the immersion heater itself fails, or the thermostat inside the immersion heater breaks. The solution to both of these is to replace the offending part. On older cylinders, replacing and immersion heater can be risky if the cylinder is badly scaled. The reason for this is the scale increases the likelihood of the cylinder splitting when removing the immersion heater, making the cylinder beyond repair.

If your cylinder has split like this, or the parts required to fix it are no longer available, the best course of action is to replace it. If you would like a free quote to replace yours, please do get in touch. I'll be happy to help you.


Standard Vented Hot Water Cylinders

Unlike unvented hot water cylinders, these standard conventional cylinders rarely go wrong, except if the immersion heater fails.

But most of the time, they go on heating your hot water or years, without any trouble.

Occasionally they will leak - and where the leak is coming from will determine what you need to do. If the leak is from a plumbing connection, there's a pretty good chance it can be repaired.

However if the leak is from elsewhere, you will probably need to replace the cylinder.

If you would like a free estimate for either, please call me and I'll be delighted to help you.

New & Replacement Radiators

New Radiators Fitted

If you would like a new radiator fitted I'll be happy to give you a free estimate. As part of the estimate, I will carry out a free heat loss calculation for the room (or rooms) you would like the radiator installed.

This is so you can choose a radiator that'll heat your room up properly on the very coldest days of the year.

Leaking Radiators Repaired

If your radiator is leaking from the plumbing connections either end - or at the top ends, I may be able to fix it for you.

If it's leaking from anywhere else, you might need to have your radiator replaced.

Either way, if you give me a call, I can give you a free estimate to carry out the work.

Smart Thermostats

Smart thermostats are becoming increasingly popular. I think they're great - you can control your heating from your phone, and they can save you up to 15% on your heating bills.

Below are the smart thermostats I can install for you, although the ones I recommend are Nest (because I've got one) and Honeywell (because I've always found Honeywell to be very reliable).

If you would like a quote to get a smart thermostat installed, please do get in touch.







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