Eco4 had recently completed EWI at my house. All the workmen are very professional, polite and knowledgeable. I have already referred to my friends and family and definitely recommend this company to all for work. Communication was excellent.
GAS Fired Condensing
Upgrade to a modern, efficient gas condensing boiler. Save money, reduce carbon footprint, and enjoy a warmer home with government-backed grants.
High Efficiency of Performance
Fired Condensing Heating
Water is heated, and gas space heating is preheated in a gas-fired condensing boiler with gas combustion. This is more efficient than a non-condensing boiler as more heat is extracted from the flue gases.
How it works
Natural gas is combusted to create heat and steam.
The steam is transported down through a heat exchanger, condensing into water.
The water collected from condensation is returned as feed water in the heating system.


Eco4 Pro Limited
Gas-fired condensing upgrade
You need a new boiler if you still have an old, working one on the floor or stored in the back of the house. These ancient heaters are inefficient, and you could spend more on heating than you should. A new heater can reduce your home’s energy consumption and cost less to run.
Now you can have a new gas stove fitted for free with the Government’s ECO 4 grant system.
Stop breaking the bank on boiler repairs
You won’t waste money fixing what doesn’t need fixing or a boiler that doesn’t work all that well, right? You shouldn’t have to pay a dime in advance to access our grant-backed boiler repair program.
With a new A+ grade condensing boiler, you could reduce your energy costs by 20-30% and reduce the impact of future price increases.
Is there such a thing as a free boiler upgrade possible?
Customers who receive at least one benefit may be eligible for a free boiler upgrade. Employed? Apply with us now to verify you qualify.
Eco4 Pro Limited can assist with free replacement of an Old back or floor-mounted boiler, which isn’t a Condensing boiler, with an upgrade to a Condensing gas boiler. We will determine if you qualify and process the grant for you.
Get to know Eco4 Scheme from Eco4 Pro Limited
The Eco4 scheme is the government’s latest attempt to improve the energy efficiency of homes and businesses. This initiative offers free boiler repairs and insulation to eligible homes. It aims to assist low-income households and combat fuel poverty. At Eco4 Pro Limited, we aim to participate in this vital task. We are helping people to reduce the amount of energy they use in their homes as part of the Eco 4 deal.
This will support the UK’s goal of achieving net-zero carbon emissions by 2050. Let Eco4 Pro Limited help take you closer to a greener future. Please work with us on this vital campaign.

Testimonials
Honest reviews from our clients
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Common Questions
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What Our Customers Say
Real feedback from real homeowners across the UK — sourced from Google Reviews and Trustpilot.
I recently had a new boiler installed by ECO4 Pro Ltd, and I couldn’t be happier with the entire process. From the initial consultation to the final installation, the team demonstrated professionalism, efficiency, and outstanding customer care.
They did an amazing job on my property. The staff was professional and very fast as well. When doing the work, they ensured to install the floor protectors so our flooring doesn’t get damaged. Highly recommended.
Was a pleasure dealing with Eco4, particularly Khalil and Khaliq, always helpful and available when you needed to ask them something. Work carried out was great and if I ever have any issues, I know I can get in touch with them quickly and it’ll be resolved very quickly. Would highly recommend.
Excellent communication from staff from start to finish. Workers were punctual and respectful. Work was carried out to a high degree and the workers cleaned up when they left.
Eco4 had recently completed EWI at my house. All the workmen are very professional, polite and knowledgeable. I have already referred to my friends and family and definitely recommend this company to all for work. Communication was excellent.
They responded very quickly to our request for a quote and within a week they started work. They were responsive to our requests and professional in their approach to the work.
I recently had a new boiler installed by ECO4 Pro Ltd, and I couldn’t be happier with the entire process. From the initial consultation to the final installation, the team demonstrated professionalism, efficiency, and outstanding customer care.
