UK-Wide Coverage · Free Preliminary Check Available

Building Compliance &
Energy Assessment Experts

Part O · Part L SAP · Part G · Energy Statements · SBEM · Psi Values

Professional compliance assessments for residential and commercial buildings across the UK.
Specialists in Part O overheating, energy performance, and building regulation compliance.

✓ CIBSE-Aligned Assessments  ✓ TM59 Specialists  ✓ OCDEA Qualified with Elmhurst Energy
✓ UK-Wide Coverage  ✓ Same-Day Quote Response  ✓ B2B White Label Available

CORE SPECIALTY

Part O Overheating Assessments

Our primary specialism — helping residential developers and architects achieve Part O compliance quickly and cost-effectively.

Simplified Overheating Assessment

• Starting from £60
• Quick turnaround
• Ideal for simple residential projects
• Perfect for basic Part O compliance

TM59 Dynamic Modelling

• Starting from £200
• CIBSE-aligned assessment
• Comprehensive thermal analysis
• Part O compliant report

FULL SERVICE RANGE

Building Compliance Assessments

SAP Assessments - Part L

• Starting from £170
• OCDEA - qualified SAP calculations for new dwellings to demonstrate Part L compliance.
• We produce SAP reports, EPC certificates, and design-stage assessments.
• Current Regs; Older Regs; Future Homes; Extensions and Conversions

TM52 Dynamic Modelling

• Bespoke Project Pricing
• CIBSE adaptive comfort criteria
• For non-domestic buildings
• Detailed Thermal modelling

Part G - Water Efficiency Calculations

Water efficiency calculations to demonstrate compliance with Part G of the Building Regulations, ensuring residential buildings meet the required water consumption targets.

Energy Statements

• Bespoke Project Pricing
• Comprehensive energy statements for planning applications, demonstrating compliance with local authority requirements and national energy performance targets.

PSI Values - Thermal Bridging

2D and 3D junction modelling pricing POA. Calculation of linear thermal transmittance (psi values) for junctions and thermal bridges, helping improve SAP scores and reducing heat loss through construction details.

SBEM Assessments

• Bespoke Project Pricing
• Simplified Building Energy Model (SBEM) assessments for commercial and non-domestic buildings to demonstrate Part L2A compliance and achieve the required Target Emission Rate.

Business to Business (B2B) - White Label Services

• Bespoke Project Pricing
• We work behind the scenes for architects, developers, and consultants. Receive fully branded reports under your company name — seamless, professional, and confidential.

About Part O Expert Ltd

At Part O Expert Ltd, we are dedicated to providing accurate
Part O - Overheating compliance assessments and solutions. We will use our years of expertise to assist you in achieving compliance.
 

Stay informed with our latest news and updates.

Resources and Tools

We can provide a quick 'Free of Charge' check to let you know if it is worth attempting a Simplified assessment or better to opt straight for the more in-depth dynamic modelling TM59 overheating assessment. 

Contact Us Now For A Quote