— Our Services
Boiler Servicing
— About This Service
Professional Boiler Servicing Across Barnsley
Using calibrated flue-gas analysers, manufacturer‑approved spares and precision test kits, OneHeat services IDEAL and other major-brand boilers to strict safety standards. Our Gas Safe‑registered, City & Guilds‑qualified engineers inspect burners and heat exchangers, carry out safety and pressure checks and perform radiator flushing where required. We log every service, issue Landlord Gas Safety Certificates when needed and keep manufacturer guarantees valid. Local to Barnsley, we offer fast response options and comprehensive service records for peace of mind.
184 Five-Star Reviews
— Our Process
How It Works
Initial inspection
Engineer arrives with calibrated flue‑gas analyser and test kit, records system details and identifies any immediate safety faults.
Deep clean & checks
Burner and heat‑exchanger cleaning, combustion and pressure tests, safety device checks and condensate/ventilation inspection; radiator flushing if required.
Report & recommendations
You receive a written service report, any remedial recommendations and advice on parts, warranty needs or planned maintenance.
— Benefits
Why Choose us for Boiler Servicing?
Accredited safety and competence
All engineers are Gas Safe‑registered and City & Guilds‑qualified, with CHAS accreditation — you get legally compliant, safe servicing every time.
Local knowledge, fast response
Based in Barnsley and working across Wakefield, Rotherham and Sheffield, our team knows local housing stock and offers rapid call‑outs to reduce cold homes.
Clear records & landlord support
We log every service, can issue Landlord Gas Safety Certificates and provide service histories that support warranties, insurance and tenant safety.
What we do during a boiler service
Our engineers follow manufacturer checks and industry best practice: inspection and cleaning of burners and heat exchangers, combustion and pressure testing with calibrated flue‑gas analysers, examination of seals and flues, safety device and thermostat checks and a condensate/vent inspection. Where sludge or poor circulation is found we recommend and can carry out radiator flushing to restore system efficiency and prevent future breakdowns.
Trusted, local and documented
OneHeat is Gas Safe registered, City & Guilds qualified and CHAS accredited. Voted Plumbing Business of the Year 2026 at the My Local Awards, we have consistently positive reviews on Checkatrade and MyBuilder. For landlord customers we can issue a Landlord Gas Safety Certificate after the service. To book or ask about a service plan call 07956 098150 or email info@oneheatltd.co.uk.
— OUR ACCREDITATIONS
184+
Five-Star Reviews
7
Specialist Services
6+
Industry Accreditations
13+
Areas Covered
— FAQ
Frequently Asked Questions
We recommend an annual service to keep boilers running safely and efficiently. Regular servicing reduces the risk of breakdowns, helps maintain manufacturer warranties and can spot developing faults early before they become expensive repairs.
— Related Services
Other Services We Offer
— REVIEWS
What Our Customers Say
— Malcolm Baker
Google2026-06-03— Craig Cardwell
Google2026-05-27— New Reviewer
Google2026-05-19