Commercial Hot Water
Commercial Hot Water Systems & Storage
Design, installation, servicing, and repair of heavy-duty commercial gas water heaters, calorifiers, and unvented hot water cylinders serving business premises.
- •Continuous-flow direct gas-fired water heaters from Andrews, Rinnai, and Lochinvar
- •Unvented commercial hot water storage cylinders and buffer vessel installations
- •Legionella temperature compliance monitoring, destratification, and safety valve testing
- •Rapid response to commercial water heater breakdown, pilot loss, and scale buildup
Commercial Hot Water Services
Engineered for gyms, hotels, restaurants, healthcare, and high-demand commercial sites
Hot Water Systems
Installation of high-recovery direct-fired gas water heaters, calorifiers, and plate heat exchanger setups.
Equipment Servicing
Anode rod inspection, scale descaling, burner cleaning, and temperature safety valve servicing.
Fault Finding
Diagnostics for lack of hot water, burner lockouts, thermostat failures, and expansion relief discharge.
Replacement Advice
Expert evaluations on system sizing, energy-efficient replacements, and peak demand flow calculations.
Commercial Hot Water Across South Yorkshire
Certified water heating engineers serving Sheffield, Rotherham, Barnsley, Doncaster, and Chesterfield
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
