20+
Years of Experience
WHO WE ARE
Empowering You with Green Energy.
We specialise in Air Source Heat Pumps and Solar Energy, offering the perfect solution for homeowners and business owners in the South of England who want to make the switch to renewable energy.

Expertise You Can Trust
Experienced engineers delivering high-quality installations and servicing.
What We Offer
Discover Our Services
Air Source Heat Pumps
Air source heat pump installations that provide efficient and sustainable heating solutions
Underfloor Heating
Getting professional advice is crucial to determine which system best suits your property and personal circumstances.



servicing & maintenance
Innovation Beyond Boundaries
Maintenance Services
At Sustain Heating and Renewables, we specialise in comprehensive air source heat pump servicing to help you maintain optimal performance and efficiency
Experienced technicians
Detailed service plan
Routine check up
Maintain efficiency
Common Queries
Frequently Asked Questions
Whether you’re just starting to explore your options or ready to make the switch, these answers will help you make informed decisions about our services.
Read all FAQS

01. Is an Air Source Heat Pump expensive to run?
A properly sized and correctly installed Air Source Heat Pump is incredibly cost-effective to run. In fact, it stands out as the most economical heating system when compared to other electric or fossil fuel alternatives. A well-installed Air Source system can generate approximately 4kWh of heat for every 1kWh of electricity it consumes. By dividing the cost of 1kWh of electricity by 4, you can calculate the running cost of the system. Here’s an interesting fact that often goes unnoticed: 100% of the heat energy produced by the Heat Pump is delivered to your property, whereas traditional boilers can lose up to 20% of their heat energy through the flue with the exhaust gases.
02. How many Solar Panels do I need?
The number of panels needed varies from person to person and property to property. It primarily depends on the size of the area you have available, such as your roof space. Another crucial factor is how much energy you use and when you need it. It’s not as straightforward as saying, “I use 10,000 kWh per year, so just fit a system to meet that.” Keep in mind that panels generate less energy during winter, which might coincide with when you use the most energy. To determine your requirements accurately, take a closer look at your appliances and when you use them. Do you have additional electricity-intensive devices like an electric car or hot tub? Building your solar system around your specific energy needs and considering your lifestyle adjustments can help you maximize the benefits of Solar PV.
03. How does home battery storage installation work?
Home battery storage installation involves integrating a battery system with your existing energy setup, allowing you to store excess energy for use during peak times.
knowledge base
Your Guide to Renewable Energy
Welcome to our knowledge base. Discover a comprehensive resource designed to empower you with the latest insights, solutions, and best practices in renewable energy.

Go Green, Stay Informed

Renewable Energy Unlocked

In 2024, 42.2% of the UK’s electricity was generated from renewable sources, including wind, solar, and hydropower. This is a significant increase compared to 14.2% in 2015
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