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Heat loss calculations in accordance with MIS-3005.

Save up to 30% on Energy Bills with Accurate Heat Loss Calculations.
£300 a year average savings on heating

Optimise Energy Efficiency – A Solution for All

At One Heat Loss, we specialise in delivering highly accurate heat loss calculations that are critical in the move towards low-carbon heating solutions. Understanding heat loss is essential not only for the selection of the right heat pump or boiler but also for determining the most efficient heat emitters, such as radiators and underfloor heating (UFH). Whether you’re a homeowner or an installer, our services ensure that your heating systems are correctly sized and optimised for energy efficiency. With just your building drawings or our simple survey form, you’ll be on the path to reducing energy bills and maximising comfort.

Are you an Architect?an Installer?a Homeowner?a Builder?a Project Manager?

We collaborate with installers across the UK to provide precise heat loss calculations. These calculations ensure the correct sizing of heat pumps, boilers and heat emitters, from radiators to UFH systems. Our detailed reports support you in delivering heating solutions that meet both industry standards and the needs of your customers, helping to avoid costly under- or over-sizing errors. For homeowners, accurate heat loss calculations ensure your heating systems – whether they are traditional boilers or heat pumps – are perfectly sized to your property. Our assessments enable informed decision-making, leading to lower energy bills, reduced carbon footprint and improved year-round comfort.

Flexible Solutions to Fit Your Needs

We provide three convenient options for obtaining your heat loss calculation, ensuring that your property’s heating system is appropriately sized and tailored to your unique requirements:

Send us your building drawings

Upload your drawings, and our experts will provide a detailed, accurate heat loss calculation tailored to your property’s design.

from
£175*

Complete our survey form

Fill in our comprehensive form, providing key details about your property. We’ll use this data to create a precise heat loss calculation and determine the best heating solutions for your home.

from
£75*

Arrange a site visit from our team

Schedule an on-site visit for a thorough, hands-on assessment. This allows us to gather all the necessary data in person, ensuring an optimal calculation that takes every unique aspect of your home into account.

from
£300*

*All prices may vary depending on property size and project requirements.

Recent Projects

Onwards & Upwards Project

Onwards & Upwards Project

Onwards and Upwards is a vibrant centre based at Woodhouse Road. We visited the site to conduct a heat loss calculation to see the building's current performance.

Anglesey Commercial Project

Anglesey Commercial Project

In early 2024, we were engaged by our client to undertake independent heat loss assessments across multiple sites in Anglesey, comprising seven schools and three care homes.

Newport House: A Historic Restoration

Newport House: A Historic Restoration

Newport House, one of Herefordshire’s most significant Grade II listed properties, sits in a tranquil location surrounded by 427 acres of stunning countryside.

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