Boiler Installation, Service & Repairs in Sheffield, Rotherham, Doncaster & Barnsley
New Boiler Installations | Gas Cooker Fitting | Boiler Repairs | Commercial Gas Services
Kassgas -Your Local Heating, Plumbing & Gas Experts Across South Yorkshire
Kassgas is your trusted local expert for boiler installations, servicing, and repairs across Sheffield, Rotherham, Doncaster, Barnsley, and the wider South Yorkshire area.
We’re a family-run, Gas Safe registered team, known for reliable, affordable heating and plumbing solutions for both homes and businesses.
We guarantee professional, friendly service with fast turnaround times and no hidden costs.
Our services also include:
Boiler Installation, Servicing & Repairs – Fast, efficient, and affordable
Gas Cooker & Hob Installation – Safe, certified fittings
Bathroom Plumbing & Refits – From minor repairs to full installations
Commercial Gas Services – Gas safety, heating systems, and pipework for businesses
We work with top boiler brands including Ideal, Worcester Bosch, Vaillant, and Baxi, offering competitive prices and a price match guarantee.
Why Choose Kassgas?
Local, family-run team serving South Yorkshire
Gas Safe Registered Engineers – Fully qualified & DBS checked.
ISO 9001 & ISO 14001 Certified – For quality and environmental assurance
Domestic & Commercial Heating Specialists
Transparent Pricing – No Hidden Costs
Fast Response & 5-Star Rated Service
You can count on us to work safely, efficiently, and with minimal disruption to your home, giving you complete peace of mind.
Get a free, no-obligation quote for your new boiler installation today!
Fill in your details here or call us on 0330 058 9419.
Don’t just take our word for it! Check out our 5-Star Customer Reviews
New Boiler Installation
Our boiler installations can be fitted within 24 hours and all come with a minimum 5 years warranty up to a maximum 12 years. We install 7 days a week to work around your needs and apply no extra cost to weekends.
Boiler Servicing
Boiler Repairs
Power Flush
Landlords / Letting Agents
Plumbing
Smart Thermostat
Cooker Installation
Our gas cooker installations start from only £60 and 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 Commercial Gas 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.
Our most popular boiler installations
Kassgas Price Match
We beat any like for like boiler quotation.
We will beat any like for like quotation for a boiler
installation as long as it fully complies with all relevant regulations. Simply provide us with a valid quotation for the same service and we will beat it by a minimum of £75.
Boiler Repair
Boiler Replacement
We provide installations at some of the lowest prices in Sheffield, Rotherham, Barnsley, Doncaster and other surrounding areas. Call us on 0330 058 9419 or fill in the contact form and one of our Gas Safe Engineers will be in touch, please let us know the best times to contact you on the message section.
Annual Boiler Service
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
Reviews
Our Happy Clients!
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
