Gas Safe-registered engineers delivering boiler installations, servicing, rapid repairs and air conditioning services across Rotherham, Barnsley, Wakefield and Sheffield — accredited, insured and award-winning.
OneHeat Limited
South Yorkshire’s Trusted Heating, Boiler & Air Conditioning Specialists
Reviews
Highly Rated By Our Customers
Services
Our Services
Expert heating, boiler and air conditioning services
01
Boiler Installations
Professional new boiler installations and system upgrades across Barnsley, Wakefield, Rotherham and Sheffield. Full site survey, product guidance and Gas Safe certified installation with practical finance options.
02
Boiler Servicing
Annual boiler servicing by Gas Safe-registered engineers — burner and heat‑exchanger cleaning, safety and pressure checks, plus radiator flushing where needed to avoid breakdowns and protect warranties.
03
Boiler Repairs
Fast, reliable boiler repairs by Gas Safe engineers across Barnsley and nearby towns. Same‑day call-outs for no heating, no hot water, ignition lockouts and low pressure — we diagnose and fix or arrange rapid follow-up work.
04
Air Conditioning
OneHeat Limited provides professional air conditioning services for domestic and commercial customers across South Yorkshire.
ABOUT US
Local engineers you can rely on
OneHeat Limited is Barnsley-based heating expertise with Gas Safe-registered, City & Guilds-qualified engineers. From new boiler installs and servicing to emergency breakdowns, landlord safety certificates and air conditioning services, the team combines accredited competence with practical finance options and fast local response times.
- Gas Safe registered, City & Guilds qualified and CHAS accredited
- IDEAL Max Accredited Installer — able to issue Landlord Gas Safety Certificates
- Voted Plumbing Business of the Year 2026 (My Local Awards) with consistently positive Checkatrade and MyBuilder feedback
- Finance options and payment plans available; same-day boiler repairs across Barnsley, Rotherham, Wakefield and Sheffield
WHY CHOOSE US
Why Choose Us
Rapid local response
Based in Barnsley (Marland House, Huddersfield Road) with regular work across nearby towns — expect fast callouts and same-day attention for boiler breakdowns and urgent repairs.
Fully accredited engineers
All engineers are Gas Safe registered and City & Guilds qualified. CHAS accreditation and IDEAL Max installer status mean work is carried out to recognised safety and quality standards.
Award-winning, trusted service
Recognised locally — Plumbing Business of the Year 2026 — and consistently recommended on Checkatrade and MyBuilder for reliable, tidy installations and attentive aftercare.
Practical finance options
Payment plans and a finance calculator help spread the cost of new boilers, air conditioning systems and larger installations so customers can choose a solution that fits their household budget.
Clear quotes & compliance
Written estimates, transparent scope of works and the ability to issue Landlord Gas Safety Certificates — no surprises, just compliant installations and documented aftercare.
Exclusive 12-Year Warranty
As an IDEAL Max Accredited Installer, OneHeat Limited can offer an exclusive 12-year warranty on the Vogue Max boiler range — giving homeowners long-term peace of mind on one of the market's leading boilers.
REVIEWS
What Our Customers Say
“I couldn't be happier with these guys. Faced with a potentially chunky bill and a big job, Ricky assessed the situation and helped me massively. The job became much smaller, as did the bill. I even got it done before it would have been …”
— Tony Mill
Google2026-10-16“Excellent service prompt, knowledgeable, clean and tidy.Would recommend to anyone.”
— Garry Lowe
Google2026-10-16“Ricky and Adam were very good and proficient at what they did. And we’re very friendly and kind I recommend them both at whatever they do . Thank very much Ricky and Adam .”
— Doss Dyson
Google2026-10-16“ricky is very gd with tenants communicates well decent costs and sorts issues quickly and well”
— Colin Brockbank
Google2026-10-16“We have just had our new boiler installed by Ricky. What a top notch service! I have used Ricky many times over the last 6 years or so and he has always been extremely reliable and very well priced. I can’t recommend enough! …”
— Lewis Harris
Google2026-10-16“After having trouble with a 10 year old boiler I asked Ricky and Adam to check it and unfortunately it was in a bit of a state so a new boiler was required, they ordered one immediately and installation was done in 2 days. The workmanship …”
— Malcolm Oakley
Google2026-10-16Ready to get your heating or air conditioning sorted?
Call 07956098150 or email info@oneheatltd.co.uk to book an engineer, arrange a service or request a no-obligation estimate for heating, boiler or air conditioning work.