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Customer Comments
”Polite, professional and very efficient! Would recommend our installer George.”
-Linda Mulley
“Excellent service very friendly and professional would recommend”
-Mike Phillips
”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
Sydenham's Most Popular Boilers

Vaillant
Vaillant are one of the best known boiler brands in the UK. Vaillant are considered one of the best boiler manufacturer’s on the market, winning Which? Best Buy awards on a regular basis.
Worcester Bosch
Worcester Bosch are probably the best known boiler brand in the country. Although they’re now owned by the big German brand, Bosch, Worcester is still very much a British company. Worcester Bosch’s boilers are still made in Warndon in Worcester, in the United Kingdom.


Viessmann
Viessmann are the best boiler brand 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 and Worcester Bosch, but their prices are a little lower. This makes them great value – and Which? agree, giving Viessmann several Best Buy awards in recent years.
Baxi
Baxi Boilers are another great British boiler brand, started in the industrial revolution by Richard Baxendale, an iron founder, who started the Baxendale Company in 1866, based in Preston in Lancashire. These days, Baxi also make boilers under the Main and Potterton brands. We usually recommend Baxi boilers as the least disruptive replacement to some heat-only boilers – and their Main boiler brand for people who want to keep costs down.

Common Questions From Our Sydenham Customers​
As a rule, if you have one bathroom and also excellent pressure at your kitchen tap or outside tap, a combination boiler is generally the very best choice.
If you have got more than one bathroom, a conventional, also called a “heat only” boiler (and even a system boiler) with a hot water tank would be the best choice for you.
No. For existing residences, if you need to change your boiler from 2035 onwards, you will not be able to replace it with another gas boiler. Going by current government plans, you would need to get a Hydrogen boiler or a heat pump. However, if your gas boiler is working in 2035, you will not need to do anything till it needs to be changed, such as if it’s broken down and irreparable.
It can vary extremely depending upon what you require.
Yet as a rough guide, to take your old boiler out and put a brand-new one in the exact same place varies from roughly ₤1800 to ₤3000.
And strip out an old sort of system with a hot water storage tank {and} put in a combi boiler costs between roughly ₤3000 to ₤5000.
If you require various other work carried out at the same time, such as a power flush, a new gas pipe, or new radiators, this will certainly contribute to the estimated price.
If you have only got 1 bathroom and also excellent water mains pressure, 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 several kinds of smart thermostats that can connect to the net so you can manage your boiler from your phone. Some brand names people opt for are Nest, Honeywell, Tado, and also Hive.
Yes, we cover the Sydenham area, in Greater London (Lewisham) as well as Ladywell, Lewisham, St Johns, Blackheath, Greenwich, Mottingham, Maze Hill, Kidbrooke, Charlton, Shooters Hill
6 Benefits You Get With A New Boiler
1. Slash Your Gas Bill
Did you know that buying 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. More powerful showers and faster filling baths
4. Stop running out of hot water
5. Free up extra space in your home
6. Never worry about turning the heating on or off again.
Sydenham boiler installation
As well as Sydenham, SE26, we can also help you with yout boiler if you live in:

Greater London (Lewisham) Boiler Servicing & Repair
If you don't want to replace your boiler just yet, we can service or repair it for you to help you keep it going for a bit long and save you money.

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