Boiler Repair in Sheffield, Rotherham, Barnsley, Doncaster & Chesterfield
Get your heating and hot water back quickly with fast, affordable, and reliable boiler repair across South Yorkshire. Kassgas provides expert repairs for all boiler makes and models, covering Sheffield, Rotherham, Barnsley, Doncaster, Chesterfield, and surrounding areas.
Our Gas Safe registered engineers diagnose faults quickly and deliver high-quality repairs to get your boiler working safely again.
Fast & Affordable Boiler Repairs
A broken boiler is stressful, but fixing it doesn’t have to be. At Kassgas, we offer:
-
Rapid response appointments
-
Honest, upfront pricing
-
Skilled local engineers
-
Safe, long-lasting repairs
Whether your boiler has stopped working completely or is showing early signs of a fault, our team is ready to help.
We Repair Before We Replace
Unlike many heating companies, we never push unnecessary boiler replacements.
Our engineers will always:
✔ Try to repair your boiler wherever it’s safe and cost-effective
✔ Offer clear repair options to suit your budget
✔ Only recommend a new boiler if necessary
✔ Explain every issue and solution in plain English
We’re here to fix the problem, not sell you something you don’t need.
Common Boiler Faults We Repair
We fix a wide range of issues for all boiler brands, including Worcester Bosch, Ideal, Vaillant, Baxi, Viessmann, and more.
Common problems include:
-
No heating or no hot water
-
Low boiler pressure
-
Leaks or dripping
-
Ignition or pilot-light issues
-
Banging, whistling, or tapping noises
-
Radiators not heating properly
-
Error codes or intermittent failures
If your boiler is showing any of these signs, it’s best to get it checked before the issue becomes more serious or more expensive.
Why Choose Kassgas?
✔ Gas Safe Registered Engineers
All boiler repairs are carried out safely and professionally.
✔ 5-Star Local Service
We’re trusted by homeowners across South Yorkshire for honest, reliable workmanship.
✔ Transparent Pricing
No hidden fees, just clear, fair pricing for every repair.
✔ Same Day Appointments Available
We aim to get your boiler up and running as quickly as possible.
✔ Repairs for All Major Brands
We diagnose and repair faults on all popular boiler manufacturers.
✔ ISO 9001 & ISO 14001 Certified
Quality and environmental standards you can rely on.
✔ Fully DBS Checked
Every engineer has passed full DBS checks for your peace of mind.
Need a Boiler Repair Today?
Don’t sit in the cold, our friendly, local heating engineers can be with you quickly.
📞 Call Kassgas on 0330 058 9419
👉 Or book your repair online in minutes
Read Our 5-Star Reviews
See why homeowners across Sheffield, Rotherham, Barnsley, Doncaster, and Chesterfield trust Kassgas for boiler repair.
Kassgas Boiler Repairs
During a boiler repair, our priority is to first assess the overall quality of your appliance and then narrow down the part or parts that are causing the fault with the boiler. At Kassgas we will always talk all diagnosis’s through with the customer and fully explain all faults, parts required and the best course of action take going forward.
We will always aim to try and repair boilers before suggesting replacing, but sometimes there isn’t much that can be done. The term we would use is “beyond economical repair’. If we believe that the cost of parts that would have to be replaced to get the boiler back working safely and efficiently is too great then would advise that the money that would be spent on a repair would be best used towards a newer, more efficient boiler that is made to the rigorous standards that the UK market requires.
Common Faults Boilers Face
- Listed below are some common faults that all homeowners should know, to avoid getting taken advantage of.
- Boiler Pressure - If you have a Combi or System boiler then the normal working pressure the boiler should be at is 1.5 Bar. If your boiler has insufficient pressure, try increasing it with the filling loop underneath the boiler.
- No Power - Does your boiler have no lights or display working ? Always check your switch to the boiler or even the plug hasn't been accidentally knocked. Your boiler should be operated on a 3 AMP fuse only to avoid your boiler surging with power.
- Thermostat Issues - Always check your Thermostat has sufficient battery power and has signal to the boiler receiver by turning the controls off and on. All thermostats will show pairing methods in them and will show you how to re-bind them.
- No Gas - Before calling a gas engineer always make sure that you have an active gas line coming to the property by lighting the hob or gas fire. If on a pre-payment meter always make sure there is enough credit on the meter and it hasn't locked itself.
- Leaking Parts - If your boiler has sprung a leak, always turn off your mains cold water stop tap, and bleed your radiator till no more water comes out into a mug bucket to relieve all pressure inside the boiler. This quick action may save you a lot of money in extra parts required.
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.
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
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
