
Replace Your Boiler.
Install a Heat Pump.
Cut your heating bills and your carbon footprint with an air source heat pump. Whether you are replacing an oil-fired boiler, electric heaters, or an ageing gas boiler, a modern heat pump extracts renewable warmth from outside air and delivers up to five times more energy than it consumes, keeping your home comfortable while reducing both your costs and your carbon footprint.
4.8 out of 5, 16 Google reviews

A Heating System That Pays for Itself
An air source heat pump works by extracting renewable warmth from the outdoor air, even on the coldest days, and channelling it directly into your radiators and hot water system. It replaces your gas boiler, oil-fired boiler, or electric heaters with a single, high-efficiency HVAC system, delivering significant savings on your energy bills from day one.
- Claim up to £7,500 through the government's Boiler Upgrade Scheme, including oil-fired boiler replacement grants
- Households replacing electric storage heaters typically save between £700 and £1,200 a year on heating bills. Savings against a gas boiler are smaller and depend on the age and efficiency of your existing boiler, your electricity tariff and your home's insulation, the Energy Saving Trust estimates around £260 a year against an older G-rated boiler. We provide a property-specific estimate at survey.
- Reduce your home's CO₂ emissions by as much as 44%
- Three to five times more efficient than any conventional central heating system
- Operates reliably in temperatures as low as -25°C, with no supplementary heating required
Sources and assumptions: figures are indicative annual heating cost savings for a typical UK home, based on Energy Saving Trust guidance. Actual savings depend on your existing heating system and its age and efficiency, your electricity and fuel tariffs, your home's insulation, and how you use your heating. We provide a property-specific estimate at survey.
Your Complete Home HVAC Solution
Heat pump systems, domestic air conditioning, and certified electrical works, delivered by a single team. One company, one integrated system, complete accountability.
Heat Pump Systems
High-efficiency air source heat pumps that heat your home and water using renewable energy from the outdoor air
Air Conditioning
Professional domestic air conditioning installation for year-round climate control, cooling in summer and heating in winter
Electrical Works
NICEIC-approved wiring and upgrades to safely power your heat pump, air conditioning, or EV charger installation
Smart Thermostats
Intelligent heating and cooling controls managed from your phone, with room-by-room zoning to maximise energy savings
What You Could Actually Save
Savings depend entirely on the system you are replacing. Here is an honest comparison rather than a single headline number.
Electric storage heaters
£700 to £1,200 a year
Largest savings, electric heating is the most expensive way to heat a home
Oil-fired boiler
Varies by property
Depends on oil prices, boiler age, and your electricity tariff
Older G-rated gas boiler
Around £260 a year
Energy Saving Trust estimate for a typical home
Modern A-rated gas boiler
Little to no saving
Running costs are broadly comparable, benefits are mainly carbon and comfort
| Replacing | Typical annual saving | Notes |
|---|---|---|
| Electric storage heaters | £700 to £1,200 a year | Largest savings, electric heating is the most expensive way to heat a home |
| Oil-fired boiler | Varies by property | Depends on oil prices, boiler age, and your electricity tariff |
| Older G-rated gas boiler | Around £260 a year | Energy Saving Trust estimate for a typical home |
| Modern A-rated gas boiler | Little to no saving | Running costs are broadly comparable, benefits are mainly carbon and comfort |
Sources and assumptions: figures are indicative annual heating cost savings for a typical UK home, based on Energy Saving Trust guidance. Actual savings depend on your existing heating system and its age and efficiency, your electricity and fuel tariffs, your home's insulation, and how you use your heating. We provide a property-specific estimate at survey.
What Is Included
No hidden costs, no unexpected extras. Every heat pump installation includes the following as standard, whether you are replacing a gas boiler, oil-fired boiler, or electric heating system.
Design Home Survey
Our engineers visit your property, take precise measurements, and determine exactly what your home requires.
Designed and Installed in 15 Days
From initial survey to system activation, the typical timeline is approximately two weeks.
Old System Removal Included
Your existing boiler is safely decommissioned and recycled responsibly as part of the service.
Flexible Payment Options
Interest-free finance plans available to spread the cost into manageable monthly instalments.
15-Year Guarantee
Comprehensive parts and labour coverage. If anything requires attention, we resolve it promptly.
Your Installation Process
From initial enquiry to long-term comfort, here is how our heat pump installation process works, step by step.
Request a Quote
Provide us with your property details and we will deliver a personalised quotation within 24 hours.
Design Home Survey
Our engineers visit your property to assess your requirements and design the optimal heating system.
Professional Installation
Our MCS-certified installers complete the full installation, typically within 3-4 working days.
15-Year Guarantee
Enjoy reliable, affordable heating with complete peace of mind, backed by our comprehensive guarantee.
Why Choose Casa Renewables
Interest-Free Finance Available
Spread the cost of your installation into affordable monthly payments with our interest-free finance options, making the transition to renewable heating accessible for every household.
MCS-Certified Engineers
Our team of MCS-certified engineers has completed thousands of installations across the UK. With extensive experience across every property type, you can be confident in the quality of workmanship.
15-Year Parts and Labour Guarantee
We stand behind every installation with a comprehensive 15-year guarantee covering both parts and labour. Should any issue arise, our team will resolve it without delay or additional cost.
What Our Clients Say
"Fantastic service from start to finish. The team installed our new heat pump quickly, professionally, and with real attention to detail. Highly recommended."
Serena _
Google Review
"I cannot recommend the team at Casa Renewables highly enough. The entire process was seamless, professional, and genuinely exceeded our expectations."
Lucy Sulman
Google Review
"Fantastic experience! The installation was smooth, and the team explained the system clearly. My home is now consistently warm, and I've noticed lower energy bills already."
Romario Maya
Google Review
"Acacio is polite, knowledgeable and takes the time to explain how the system works. Highly recommend for heat pump installation and servicing."
Lawrence Baker
Google Review
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The Future of Home Heating Starts With a Heat Pump. Request Your Quote Today.
Thousands of UK homeowners have already replaced their gas boilers, oil-fired boilers, and electric heaters with high-efficiency heat pump systems. Lower energy bills, a smaller carbon footprint, and a warmer home, there has never been a better time to make the switch.







