New Boiler Installations in Doncaster

Local Heating & Plumbing

Trusted Gas & Heating Engineers in Doncaster

Looking for reliable plumbing, heating, or gas engineers in Doncaster? Kassgas Ltd are your trusted local specialists, delivering expert services to homes and businesses across Doncaster and the wider South Yorkshire region.

From emergency boiler repairs to full central heating installations, our experienced engineers are Gas Safe registered, ISO 9001 & 14001 certified, and fully DBS checked, giving you peace of mind every step of the way.

Why Doncaster Customers Choose Kassgas

Doncaster-Based Engineers: Fast response across the local area.
Gas Safe Registered: Fully qualified for all heating and gas work (Reg No. 629149).
ISO 9001 & 14001 Certified: High standards of quality management and sustainability.
Domestic & Commercial Services: Trusted by local homeowners, landlords, and businesses.
No Hidden Costs: Honest, transparent pricing with free, no-obligation quotes.
Friendly, Clean & Reliable Team: Fully vetted, insured, and respectful of your property.

Comprehensive Solutions

Our Services Include

Domestic Services

New Boiler Installations & Replacements
Boiler Repairs & Servicing
Central Heating System Installations & Upgrades
Radiator Repairs & Replacements
Smart Thermostat Installations
Power Flushing & System Cleansing
Gas Safety Inspections (Landlords & Homeowners)
Plumbing Repairs & Maintenance
LPG Installation & Maintenance

Commercial Services

Commercial Boiler Installations & Repairs
Legionella Risk Assessments & Water Testing
Commercial Heating System Design & Installation
Ongoing Maintenance Contracts for Businesses
Gas Safety Checks for Rental Properties & Facilities
System Upgrades for Offices, Retail & Industrial Units
Emergency Call-Outs for Commercial Properties
Commercial Catering Inspection & Installation

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

We follow manufacturer instructions on all boiler services to comply with your boiler warranty and if a fault is found we can usually repair the same day. Boiler servicing is a must for any homeowner, ensuring your boiler is fully functional and efficient.

Boiler Repairs

Boiler repair can be costly and lead to further issues in the future when undertaken incorrectly.Our engineers follow strict checklists to ensure that any faults with on a boiler are found efficiently and repaired without issue.

Power Flush

Using specialist equipment, your pipework and radiators will be flushed at high pressure to remove debris and get your radiators and central heating back to maximum efficiency. Commonly used when a system has cold radiators.

Landlords / Letting Agents

Offering emergency callouts, discounted rates and direct contact between tenant and engineer, we specialise in keeping tenants, landlords and letting agents happy. Contact us directly for details on our offers.

Plumbing

We can help with any general plumbing work from emergency leaks to outdoor tap installation.

Smart Thermostat

Installing a smart thermostat in your home can save on your heating bills drastically over a 12 month period, giving you full control over when and how your home is heated. We can install any smart thermostat you desire including Nest, Hive, Honeywell Evohome and many more.

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 Customers!

Rated 5 out of 5

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

Rated 5 out of 5

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

*Kassgas Ltd, company number 11765642 is an Introducer Appointed Representative of TradeHelp. Our firm reference number is [number]. TradeHelp is a trading style of Tradehelp Ltd, Marchwiel Centre, Bryn Lane, Wrexham Ind Est, LL13 9UT, registered in England (03712438), authorised and regulated by the Financial Conduct Authority (firm reference number 697812). TradeHelp are a credit broker, not a lender, and offer loans from a small panel of carefully selected lenders. TradeHelp do not offer financial advice and do not charge you for credit broking services. All loans are subject to status.