Commercial Boilers & Heating
Commercial Boilers & Heating Systems
Commercial boiler installation, routine servicing, efficiency upgrades, and heating repairs for offices, factories, warehouses, retail units, and public buildings across South Yorkshire.
- •Commercial cascade boiler systems, floor-standing units, and modular plant room setups
- •Comprehensive planned preventative maintenance (PPM) to reduce business downtime
- •Burner overhaul, combustion efficiency analysis, and boiler warranty protection
- •Emergency commercial heating breakdown repairs and circulation fault finding
Commercial Heating Services We Deliver
Engineered for energy efficiency, compliance, and uninterrupted business performance
Boiler Installation
Design, supply, and installation of condensing commercial boilers from Hamworthy, Ideal Commercial, Remeha, and Viessmann.
Planned Servicing
Annual safety maintenance, combustion efficiency calibration, burner overhaul, and heat exchanger cleaning.
Emergency Repairs
Rapid diagnostics for commercial boiler lockouts, circulating pump failures, expansion faults, and control panel issues.
System Maintenance
Hydraulic balancing, pressurisation unit servicing, magnetic filtration flushing, and building management system (BMS) integration.
Serving Commercial Premises Across South Yorkshire
Certified commercial gas heating engineers covering all local boroughs
New Boiler Installation
Boiler Servicing
Boiler Repairs
Power Flush
Landlords / Letting Agents
Plumbing
We can help with any general plumbing work from emergency leaks to outdoor tap installation.
Smart Thermostat
Cooker Installation
Our gas cooker installations comply with all safety regulations. Moving house? We can remove your cooker in one property and install it in another on the same day, including weekends.
Commercial Gas Services
We provide comprehensive services including installation and maintenance of gas equipment, thorough safety inspections by Gas Safe registered engineers, and energy efficiency solutions to help you save money and reduce your environmental impact.
Air Conditioning
Keep your home or workplace comfortable all year round with energy-efficient air conditioning. We install, service and maintain modern systems for heating and cooling across Sheffield and South Yorkshire.
Air Source Heat Pumps
Air source heat pumps provide efficient, low-carbon heating by taking warmth from the outside air. We can advise on suitability and professionally install the right system for your property.
LPG
We install, service and maintain LPG heating systems and appliances for homes, businesses, holiday properties and rural locations without access to mains gas. All work is completed safely by Gas Safe registered engineers.
Reviews
Our Happy Customers!
We rang Kassgas on Wednesday afternoon. By Thursday afternoon we had a new boiler. Billy fitted our boiler, he was extremely polite and tidy he even took his shoes off each time he came into the house. Not enough words to praise him enough, he took time to explain how to work the new boiler and controls to two pensioners.
Billy and Matt were about to leave when we mentioned that our stop tap was leaking, they stayed behind and fit a new one. It was heartwarming to meet two young men who didn’t want to rip us off.
We would and already have spread the word about this company.
Neil & Sue
SueH-976
Billy and Matt just installed a new boiler. They recommended Ideal with a 12 year warranty. They turned up on time within a week of providing a very good quote. they removed the old boiler, installed the new one, flushed the radiators, added inhibitor, installed new halo wireless thermostats and checked everything was working ok in the space of 5 hours. They removed all the rubbish and left a very tidy finish.
I would definitely recommend themWould definitely recommend Kassgas if you have any heating or boiler problems.
Eric Jones
Why Choose Us
We put customer service and satisfaction above all else. Listening to your needs and doing everything in our power to ensure you are fully happy with everything we do. So if you’re looking for a plumber or heating engineer for your next project, why not give us a call.
Our excellent customer service is second to none, check out our reviews here
