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What Do Our Customers Say?
“Excellent service, great value for money. Had new boiler fitted last year during pandemic, easy , smooth operation. This year had boiler serviced. Highly recommend George from Thames boilers.”
–Karen Mansfield
“Excellent service very friendly and professional would recommend”
-Mike Phillips
”George was punctual and very reliable. He always turned up at the day and time agreed. Genuine, professional and friendly he carried out the work within the given time. He was good at communicating progress throughout the day and I appreciated him minimising noise during my daughters nap time! I would recommend George for any of your boiler needs.”
-Mrs Rowland
What Boilers Do We Recommend To Customers In Grays?

Vaillant
Vaillant are one of the best known boiler manufacturers in the UK. Vaillant were apparently the first company to make a “combi”also known as a “combination” boiler back in the early 1960’s. So they’re very well established.
Worcester Bosch
Worcester Bosch are probably the best known boiler brand in the UK. Like their closest competitors Vaillant and Viessmann boilers, Worcester boilers have won lots of Which? Best Buy awards.


Viessmann
Viessmann is the best boiler make you’ve never heard of. We’re big fans of Viessmann at Thames Boilers because their build quality is as good as (if not better) than Vaillant or Worcester Bosch, however their prices are a little lower. This makes Viessmann great value – and Which? magazine agree, giving Viessmann boilers several ”Best Buy” awards in recent years.
Baxi
Baxi is another great British boiler make, founded in the industrial revolution by Richard Baxendale, an iron founder, who started the Baxendale Company (now Baxi) in 1866, based in Preston in Lancashire. Today, Baxi also make well known Main and Potterton boiler brands, as part of the Baxi group. We usually recommend Baxi boilers as the least disruptive replacement to some conventional boilers – and their Main boiler brand for people who are on a budget.

Common Questions From Our Grays Customers​
Generally, if you have one bathroom and excellent water pressure at your kitchen tap or outdoors tap, a combination boiler is normally the best choice for most people.
If you have got more than one bathroom, a conventional boiler (or even a system boiler) with a hot water tank could be the best choice.
No. For existing homes, if you have to change your central heating boiler from 2035 onwards, you won’t be able to put in another gas boiler. Going by current government plans, you would have to fit a Hydrogen boiler or a heat pump. Nonetheless, if your gas boiler is working in 2035, you won’t be required to do anything up until it needs to be changed, such as if it’s broken down and irreparable.
It can vary extremely depending upon what you need.
Yet as a rough estimate, to take your old boiler out and put a brand-new one in the same place varies from about ₤1800 to ₤3000.
And strip out an old type of system 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 pipeline, or new radiators, this will certainly contribute to the estimated price.
If you have got one bathroom and excellent water pressure, yes.
If you have got more than one bathroom or inadequate water pressure, then no{, you should look at a conventional boiler or a system boiler}.
Yes. There are numerous kinds of smart thermostats that can connect to the net so you can regulate your boiler from your phone. Some brand names people opt for are Nest, Honeywell, Tado, and Hive.
Yes, we cover the Grays area, in Essex as well as Chadwell St Mary, Tilbury, West Thurrock, Swanscombe, Greenhithe, South Ockendon, Northfleet, Gravesend, Stone, Aveley
6 Reasons To Replace Your Old Boiler
1. Reduce Your Heating Bill
Did you know that installing a new boiler can save you up to £570 a year on your gas bill? (based on replacing a G rated boiler with no controls with a new A rated boiler with a controls upgrade)
2. Stop Paying For Boiler Breakdowns
3. Really powerful showers and fast filling baths
4. Stop running out of hot water
5. Free up more space
6. Never worry about switching the boiler on again.
Grays New Boiler Installer
As well as Grays, RM17, we can also help you with yout boiler if you live in:

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

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