Gas safe approved
Our engineers are all Gas Safe approved. You're in safe hands.
Get your new boiler for less than you think
Deals include boiler, installation and 12-year guarantee
Start with an instant online quote
Rated 4.8 out of 5 on Trustpilot
Free Online Quote
Fast, free & no-obligation - it takes less than 60 seconds
Pick An Install Date
It couldn't be easier to arrange your installation
We Install
Installation by our local gas-safe engineers
Free Online Quote
Fast, free & no-obligation - it takes less than 60 seconds
Pick An Install Date
It couldn't be easier to arrange your installation
We Install
Installation by our local gas-safe engineers
10
YEAR GUARANTEE
This months boiler deal
Huge savings this month only!
- A-Rated Boiler
- Up to 10-year guarantee
- Wireless controls
- Full chemical flush of your system
- Gas-safe installation
WHAT OUR CLIENTS SAY
★★★★★
"We are absolutely delighted with our new heating installation. The Ecowarm Cube is splendid and far more economical than we anticipated. The heaters look modern and we're extremely satisfied with Ecowarm's professional service!"
Michael Roberts
17th July 2024
★★★★★
"Our Ecowarm Cube is working flawlessly! The installation process was seamless from start to finish, and we're particularly impressed with the energy efficiency. Highly recommend this company!"
Higher Farm
11th June 2024
★★★★★
"Truly exceptional experience! The Ecowarm system has transformed our home's heating efficiency. Installation was professional and the results have exceeded all our expectations!"
Andrew Legg
23rd April 2024
★★★★★
"We are absolutely delighted with our new heating installation. Callidus Heating Solutions are splendid and far more economical than we anticipated. we're extremely satisfied with professional service!"
Michael Roberts
★★★★★
"James and his crew delivered nothing but first-class service from survey to completion of a new boiler, they were prompt, polite, and very efficient, I would have absolutely no hesitation in recommending them to anyone who needs their services, Well done guys and thank you."
Steve Smith
★★★★★
"Excellent job, good price I am extremely pleased with the quality of work carried out by this company. Everything was clearly explained to me about how the job was going to be carried out. Highly professional, clean and respected the home privacy."
Lucia Donato
Why choose Callidus Heating Solutions?
Manufacturer accredited
We are proud to be Vaillant and Worcester Bosch Accredited Installers.
Members of Trustpilot
Rated 4.8 out of 5 on Trustpilot with over 60 genuine reviews from our customers.
Spread the cost
With our range of flexible payment plans, we're guaranteed to find a plan that suits your budget.
Local Gas Safe Installers
Every one of our installers is a friendly, Gas Safe registered installer with years of experience installing boilers. They’ll take care of your house like it was their own, and always wear a smile.