Endorsed by Which?

Callidus Heating Solutions

5.0

13 Reviews

Opening Hours
Today - 08:00–17:00
  • Monday 08:00–17:00
  • Tuesday 08:00–17:00
  • Wednesday 08:00–17:00
  • Thursday 08:00–17:00
  • Friday 08:00–17:00
  • Saturday 09:00–12:00
  • Sunday - Closed

About

At Callidus Heating Solutions, we take pride in delivering high-quality heating installations that align with the exceptional standards promoted by Which? Trusted Traders. As a company built on integrity, expertise, and customer satisfaction, we are committed to providing reliable, energy-efficient, and long-lasting heating solutions for homes and businesses.

Our values mirror the high standards set by Which?, ensuring that every service we provide meets strict criteria for quality, safety, and professionalism. We use only the best industry-approved products and materials, combined with expert craftsmanship, to guarantee systems that are not only efficient but also built to last.

Customer trust is at the heart of everything we do. From transparent pricing to honest advice, we believe in delivering a service that puts your needs first. Whether you require a full heating system installation, a boiler upgrade, or expert guidance, our team is here to help.

What we do

  • Gas installers

  • Boiler, central heating and gas engineers

    • Boiler installation
    • Boiler servicing
    • Gas cooker installation
    • Gas safety testing and inspection
    • Immersion Heaters
    • Power flushing
    • Radiators and central heating
    • Underfloor heating
  • Heating contractors

    • Oil fired heating equipment
    • Immersion Heaters
    • Automated Heating
    • Central heating systems (installation and servicing)
  • Air conditioning contractors

    • Air Conditioning

Customer reviews

Why you can trust these reviews

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5.0
13 reviews
Customer Service
5.0
Quality
5.0
Value
5.0
Sort by
New boiler
Customer Service
Quality
Value
Our old boiler failed just as the cold weather came in January. James was able to visit and discuss our needs and options very quickly and gave a competitive quote. He also managed to schedule the work quickly. We were kept informed as to arrival times. Keith and Lewis were polite, efficient and told us what they were doing and explained things. They stayed to make sure everything was working well and cleared everything up and left it all clean and tidy.
Customer in Kent Posted on 07/02/2025 , work completed 21/01/2025
Professional throughout.
Customer Service
Quality
Value
It started with a quote for a replacement boiler. James came round and went over my system looking at everything, he gave me a quote before he left. I asked how long quote would be valid and gave a great timeline, obviously Callidus was my best quote and booked the work. Keith and Lewis arrived and very polite and worked all day !!! Poor guys had issues with my system and they stayed until 8pm trying to fix it, James came next day and Murphy's Law meant it had sorted itself during the night. I cannot recommend Callidus high enough for great price and professionalism, they work to a high standard and are polite while doing it.
Customer in Medway Posted on 01/03/2025 , work completed 24/02/2025
Change boiler
Customer Service
Quality
Value
James who surveyed boiler, I felt I new him, just the impression he gave .he gave us guidance on what boiler best for our needs. Later that day sent us a quote. After 3 more quotes, we excepted Callidus quote. Installation engineer Keith and his colleague Lewis, we're right on the ball. I used to work on site and domestic, these lads were not cowboys!! Professionalism all the way. JAMES we will recommend you anytime and without hesitation... Mary
Customer in East Sussex Posted on 09/04/2025 , work completed 09/04/2025