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What Do Our Customers Say?
”George replaced our old heating system with a combi boiler. Excellent service throughout, very neat and tidy and we’re very happy with the result! Much quieter boiler and hot water pressure is way better! Would highly recommend and will definitely use again”
-Luke Stratford-Higton
”George replaced our boiler recently. He was really friendly, reliable and fair with pricing. Would definitely recommend and will be booking in for annual boiler services without a doubt.”
-Emma T
“George from Thames Boilers came to install a brand new boiler in my property. Our previous boiler was 21 years old and beyond repair. George went through all the different options available to us, understood our needs and we settled on our new boiler. During installation he explained in detail what he was doing and what he’d be doing next. He was exceptionally clean and tidy throughout the entire installation. He was professional, friendly, courteous, reliable, trustworthy and efficient. I would wholeheartedly recommend Thames Boilers to everyone.”
-David Herrington
What Boilers Do We Recommend To Customers In Hartley?

Vaillant Boilers
Vaillant are one of the best known boiler manufacturers in the UK. Vaillant are thought to be one of the best boiler makes around, winning Which? Best Buy awards on a every year.
Worcester Bosch Boilers
Worcester Bosch are one of the best known boiler manufacturers in the country. Like Vaillant and Viessmann, Worcester Bosch have won lots of Which? Best Buy awards.


Viessmann Boilers
Viessmann are the best boiler brand you’ve never heard of. We love Viessmann at Thames Boilers because their build quality is as good as (if not better) than Vaillant or Worcester Bosch, but their prices are a little lower. This makes Viessmann great value – and Which? agree, giving Viessmann several ”Best Buy” awards in recent years.
Baxi Boilers
Baxi is another great British boiler brand, who can trace their roots back to Richard Baxendale, an iron founder, who began the Baxendale Company in 1866, based in Preston in Lancashire. Today, Baxi also make boilers under the Main and Potterton brands. We usually recommend Baxi boilers as the least disruptive replacement for some conventional boilers – and their Main brand for people who want to keep costs down.

Frequently Asked Questions​
As a rule, if you have one bathroom as well as good water pressure at your kitchen tap or outdoors tap, a combination boiler is generally the best option for most people.
If you have got more than one bathroom, then a conventional, also called a “heat only” boiler (and even a system boiler) with a hot water tank could be the best option.
No. For existing residences, if you have to change your boiler from 2035 onwards, you won’t be able to replace it with another gas boiler. According to current government plans, you would have to fit a Hydrogen boiler or a heat pump. Nonetheless, if your gas boiler is operating in 2035, you won’t need to do anything until it needs to be replaced, such as if it’s broken down and beyond repair.
It can differ extremely depending on what you need.
But as a rough estimate, to take your old boiler out and put a new one in the same place ranges from roughly ₤1800 to ₤3000.
And strip out an old kind of heating system with a hot water tank {and} fit a combi boiler costs between roughly ₤3000 to ₤5000.
If you need other work carried out at the same time, such as a power flush, a new gas pipeline, or new radiators, this will add to the estimated costs.
If you have only got 1 bathroom as well as good water mains pressure, then yes.
If you have got more than 1 bathroom or inadequate water mains pressure, then no{, you should look at a conventional boiler or a system boiler}.
Yes. There are numerous types of clever thermostats that can connect to the internet so you can regulate your boiler from your phone. Some brand names customers go for are Nest, Honeywell, Tado, as well as Hive.
Yes, we cover the Hartley area, in Kent as well as Dartford
6 Reasons Why You Should Replace Your Boiler
1. Reduce Your Gas Bill
If you’ve got a old G-rated boiler and you replace it with a new modern boiler and controls, you can save up to £570 a year on your gas bill. That’s upto an extra £47.50 a month in your pocket, and not your gas company’s.
2. Stop Paying For Boiler Breakdowns
3. Really powerful showers and fast filling baths
4. No more running out of hot water
5. Create extra space at home
6. Never worry about switching the heating on or off again.
Hartley Boiler Installer
As well as Hartley, we also cover:

Gas Boiler Servicing & Repair
As well as replacing your old boiler, we can also help you if your boiler needs to be repaired or needs a service.

Gas Boiler Upgrades
We can give you a free quote to install your boiler. It doesn't matter if you need a simple combination boiler replacement or an entirely new heating system - we'll be happy to help!