Independent retrofit assessments to inform energy efficiency, building performance, and compliant upgrade strategies.
MES Building Solutions provide professional retrofit assessments to support the improvement of existing buildings. Our assessments help clients understand how buildings currently perform, identify appropriate retrofit opportunities, and manage technical risks before measures are implemented.
Retrofit assessments form a critical foundation for successful energy efficiency upgrades. They consider building fabric, condition, occupancy, ventilation, and overheating risk, ensuring proposed measures are suitable, coordinated, and proportionate. Our advice supports both individual projects and wider retrofit programmes, informing early decision-making and helping avoid unintended consequences.
Our work also integrates seamlessly with PAS 2035, Building Regulations, funding requirements, and wider planning and design considerations.

Retrofit Expertise
Experienced delivery of retrofit assessments informed by building performance and regulatory requirements
Building-Led Advice
Recommendations grounded in how buildings are actually constructed, used, and upraded
Integrated Performance
Consideration of fabric, ventilation, overheating, and occupant comfort together
Clear, Auditable Outputs
Well-structured findings that can be readily taken forward into design and delivery
When a Retrofit Assessment is Needed
Retrofit assessments are valuable wherever energy efficiency improvements are being considered for existing buildings.
Early assessment helps ensure retrofit measures are appropriate, proportionate, and effective.
Our Retrofit Assessment Process
01
Initial Review & Scope
Review building context, objectives, and required level of assessment
02
Performance Assessment
Assessment of fabric, ventilation, and existing performance characteristics
03
Findings & Advice
Clear identification of opportunities, risks, and next steps
04
Ongoing Project Support
Continued advice as retrofit strategies or designs progress

What Our Assessments Cover
Our retrofit assessments include:
Related Retrofit Services
Additional services and guidance on the topic:
