Helping you demonstrate compliance with Part O & CIBSE TM59
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.
Email: [email protected] or [email protected]
Model
Detail
Simulate
Report
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.
What our clients say
We have recommended Barlings KWA to many of our clients for their air testing and energy assessment services. William and Kerry are extremely helpful and always deliver the work accurately and on time
Joe Campion
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
Where necessary, we advise on improvements such as:
- better wall insulation
- improved roof U-values
- upgraded glazing specifications
- lower U-value frames and glass
- reduced rooflight area
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.
We work closely with architects, developers and contractors to ensure compliance is achieved efficiently.
Why choose Barlings KWA Ltd?
- Experienced in Building Regulations compliance
- Reliable and professional service
- Clear reports suitable for Building Control
- Local Lincolnshire based service
We understand the requirements of construction projects and aim to provide a reliable and efficient service throughout the process.
More client feedback
“Always happy to answer any queries we have; the service and information they provide is excellent.”
— Kirsty Uttley
“A fantastic, professional company to work with. Great communication and turnaround time.”
— Chris Henderson
Get a Quote for Part O TM59 Calculations
If you require these Calculations, we would be happy to help.
Please contact us to discuss your project or request a quote.
Email: [email protected] or [email protected]