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What Our Customers Say
”Polite, professional and very efficient! Would recommend our installer George.”
-Linda Mulley
”George was fast, clean, professional and did a great job installing our new boiler. He really knew his stuff and did the job with no hassle. Im only using him for this type of work from now on!”
-James Quinn
”Thames Boilers have just carried out a boiler replacement for me. They quoted promptly with a competitive rate and carried out the work neatly, thoroughly and efficiently to a high standard of workmanship. Engineer George Lane was courteous, explained in advance what he was doing and when he would do it, cleared everything away and left things in a tidy state. I have no hesitation in recommending Thames Boilers.”
-Jonathan Freegard RIBA
Customers In Aveley Like These Boilers

Vaillant Boilers
Vaillant are one of the most popular boiler makes in the UK. They were apparently the first company to make a “combi” boiler back in the early 60’s. So they’re very well established.
Worcester Bosch Boilers
Worcester Bosch are among the best known boiler brands in the country. If you want a really reliable boiler, but still want to “buy British”, then Worcester Bosch is a great choice. However, they are among the more expensive boilers we install.


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

Frequently Asked Questions​
Generally, if you have got one bathroom and also great water pressure at your kitchen tap or outside tap, a combi boiler is generally the very best option.
If you have got over one bathroom in your home, then a conventional boiler (or even a system boiler) with a hot water tank would be the best option for you.
No. For existing houses, if you have to replace your gas boiler from 2035 onwards, you won’t be able to put in another gas boiler. Going by current government plans, you would have to get a Hydrogen boiler or a heat pump. Nevertheless, if your gas boiler is operating in 2035, you won’t be required to do anything up until it needs to be replaced, such as if it’s broken down & irreparable.
It can vary hugely depending on what you need.
Yet as a rough guide, to take your old boiler out & put a new one in the same location ranges from about ₤1800 to ₤3000.
And remove an old sort of gas boiler with a hot water cylinder {and} fit a combi boiler costs between about ₤3000 and ₤5000.
If you need other jobs carried out at the same time, such as a power flush, a new gas pipe, or new radiators, this will add to the estimated price.
If you have got 1 bathroom and also great water mains pressure, then yes.
If you have got more than 1 bathroom or poor water mains pressure, then no{, you should look at a conventional boiler or a system boiler}.
Yes. There are a number of types of clever thermostats that can connect to the net so you can control your boiler from your phone. Some brand names customers go with are Nest, Honeywell, Tado, and also Hive.
Yes, we cover the Aveley area, in Essex as well as South Ockendon, West Thurrock, Dartford, Grays, Swanscombe, Greenhithe, Stone, Chadwell St Mary, Wilmington, Tilbury
6 Benefits You Get With A New High Efficiency Boiler
1. Reduce Your Heating Bill
If you’ve got a old G-rated boiler and you replace it with a new condensing 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 the gas company’s.
2. Save Money On Boiler Breakdowns
3. More powerful showers and faster filling baths
4. Stop running out of hot water
5. Free up space
6. Don’t worry about turning the heating on again.
Live in Aveley & need a replacement boiler? We’ve got RM15 covered!
As well as Aveley, RM15, we can also help you if you live in:

Essex Boiler Servicing
As well as replacing your old boiler, we can also help if your boiler needs to be fixed or just needs a service.

Essex Boiler Upgrades
We can give you a free quote to install your boiler. It doesn't matter if you need a simple combi boiler replacement or a whole new heating system - we can help you!