Helping you demonstrate compliance with Part O and planning requirements
At Barlings KWA, we provide professional TM59 overheating assessments for new dwellings, across Lincolnshire and the UK.
Using advanced dynamic thermal modelling software, we assess whether a dwelling is likely to overheat during warm weather and provide practical recommendations to help ensure compliance with Building Regulations Part O and planning requirements.
Whether you are an architect, developer, builder, or homeowner, we can help you navigate the process and achieve compliance first time.
What is a TM59 Assessment?
A TM59 assessment is a recognised overheating risk assessment method developed by CIBSE (The Chartered Institution of Building Services Engineers).
It is used to determine whether residential properties are at risk of overheating during summer conditions.
TM59 assessments are often required for:
- Planning applications
- New build dwellings
The assessment uses dynamic simulation modelling (DSM) to test internal temperatures against recognised overheating criteria.
Our TM59 Assessment Service
At Barlings KWA, we provide:
- Full TM59 overheating calculations
- Part O compliance reports
- Advice on glazing g-values and shading
- Window opening strategy guidance
- Ventilation and night purge modelling
- Design recommendations to help pass
- Fast turnaround times
We regularly work with architects, developers, and building control teams to help projects move forward quickly.
How We Help Projects Pass
If a design is close to failing, we can advise on practical solutions such as:
- solar control glazing
- reduced g-values
- external shading
- improved purge ventilation
- mechanical ventilation strategies
- window opening controls
- room layout optimisation
Our aim is to help you pass first time wherever possible.
Request a Quote
Need a TM59 assessment for your project?
Contact Barlings KWA today for a fast quotation and expert advice.
Email: william@barlingskwa.co.uk
Call: 01522 797344