About Delta Flow
Delta Flow is a heating, cooling and renewables business based in Rothwell and founded by Liam Hirst. Drawing on more than 20 years in the heating industry, we help homeowners across Leeds and Wakefield make confident choices about new boilers, heat pumps, air conditioning and ongoing system care.
Who We Are
Heating, Cooling & Renewables From Rothwell
Delta Flow is the new name for Liam's specialist home comfort services, based in Rothwell and working across Leeds, Wakefield and nearby towns.
Liam has worked in heating for more than two decades and completed well over 1,000 boiler installations, giving him experience of different properties, equipment and requirements.
The business now brings boiler expertise together with air source heat pumps and air conditioning, supported by clear advice, careful work and ongoing customer support.
Who We Help
Helping Homeowners Choose The Right System
We work with homeowners replacing unreliable boilers, maintaining existing heating, exploring heat pumps or looking for better comfort through home air conditioning.
Some customers know exactly what they need. Others want to compare options or understand whether their existing equipment can be repaired or improved.
Our approach is to start with the property and its requirements, explaining suitable systems and what the proposed work involves before any installation.
Our Mission
Better Advice, Better Systems, Better Support
Good heating and cooling should start with appropriate advice, not simply the first product that comes to mind.
We aim to communicate clearly about the work, the cost and what you can expect, while treating your property with care.
The relationship does not end when the installation finishes. We demonstrate the controls, so you understand your system and know where to turn for help and future maintenance.
How We Work
Clear Communication At Every Stage
We begin by learning about your property, existing equipment and what you want to achieve, whether that is reliable hot water, lower-carbon heating or summer comfort.
Next, we consider suitable options and explain the proposed scope. Depending on the service, this may involve more information or an assessment at the property.
Before work starts, we'll discuss practical arrangements and the likely disruption so you have a clear idea of the next steps.
After an installation, we'll explain the controls, provide relevant documents, register equipment warranties and remain available for support and servicing.
Qualifications & Standards
Qualified Across Heating And Cooling
Liam's credentials include Gas Safe registration, REFCOM certification, F Gas qualifications, MCS accreditation and Heat Geek Elite status.
Manufacturer accreditations include Ideal, Viessmann, Vaillant, Baxi and Worcester Bosch. He is also NICEIC accredited for domestic ventilation.
His career includes well over 1,000 boiler installations and hundreds of heat pump installations, providing practical experience beyond technical training.
- Years in heating
- 20+
- Boilers installed
- 1,000+
- Heat pump installations
- 100+
How We Work
Founder-Led, Carefully Managed
Delta Flow was founded by Liam Hirst, whose experience sets the standards behind every job.
We manage each project from the first conversation through to handover, so you know who to speak to and what to expect at every stage.
The aim is consistent workmanship, clear communication and practical customer care, with your home treated with respect throughout.
Why Choose Us
Why Choose Delta Flow
Practical experience, specialist qualifications and an approach that continues after installation.
Experienced Advice
More than 20 years in the heating industry informs our recommendations and installation work.
Recognised Credentials
Qualifications and accreditations span domestic gas, refrigerants and renewable heating.
Clear Communication
We explain suitable options, the scope of work and what happens next.
Ongoing Support
Warranty registration, a controls demonstration and separately available servicing support you beyond installation.
Customer Feedback
What Customers Say About Us
Read verified feedback from customers about their experience, including advice, communication, the quality of the work and support after installation.
Areas Covered
Serving Leeds And Nearby Communities
Delta Flow is based in Rothwell, with services available to homeowners across Leeds and Wakefield.
Featured locations include Rothwell, Morley and Garforth, alongside the wider surrounding area.
We can discuss whether your property is within our usual working area when you enquire about installation, servicing or repairs.
- New Boiler Installation in Leeds
- New Boiler Installation in Wakefield
- New Boiler Installation in Rothwell
- New Boiler Installation in Morley
- New Boiler Installation in Garforth
- Alverthorpe
- Boston Spa
- Chapel Allerton
- New Boiler Installation in Harrogate
- Horbury
- Kippax
- New Boiler Installation in Lofthouse
- New Boiler Installation in Methley
- Moortown
- New Boiler Installation in Ossett
- Oulton
- New Boiler Installation in Outwood
- New Boiler Installation in Roundhay
- Sandal
- Stanley
- Swillington
- Thornes
- Tingley
- New Boiler Installation in Wetherby
- New Boiler Installation in Woodlesford
- Boiler Repairs in Wrenthorpe
Get In Touch
Speak To Delta Flow
Whether you need a replacement boiler, advice on a heat pump or an air conditioning enquiry, tell us about your home and we'll explain the next step.