Introducing Our New Heat Pump Technical Assessment Services – Helping Homeowners Make Smart, Sustainable Heating Decisions
At Thermcal Ltd, we’re proud to launch our new Heat Pump Technical Assessment & Supporting Services – a comprehensive offering that helps homeowners make confident, informed decisions about upgrading to a low-carbon heating system.
This service is designed to assess whether a property is technically and practically suitable for a low-temperature air source heat pump, while meeting the requirements of:
- MCS Certification
- PAS 2035 Retrofit Standards
- Building Control Compliance
Whether you’re planning a sustainable renovation or applying for government funding, our technical assessment gives you the clarity and confidence to move forward.
Why This Service Matters
Heat pumps are one of the key technologies driving the UK’s transition to net-zero heating. However, successful installation depends on detailed knowledge of your home’s construction, performance, and existing systems.
Our assessments ensure your home is truly “heat pump ready,” helping avoid future design issues, inefficiencies, or compliance gaps.
What’s Included in the Technical Assessment Package?
1. Room-by-Room Heat Loss Survey
Every home is different – and so is every room. Our detailed heat loss survey accounts for:
- Window sizes and orientation
- Wall, floor, and roof insulation
- Room-specific heat loss (in watts)
- High-loss areas that need attention
We use advanced software tools to calculate precise heating requirements, supporting accurate emitter sizing and ensuring your new heat pump will perform as intended.
2. Airtightness Test (Blower Door Test)
Air leakage is one of the biggest contributors to heat loss. Our on-site airtightness test provides:
- Certified results in m³/h·m² @50Pa
- Leak identification and reporting
- Optional infrared imaging in colder months
Knowing your building’s actual air permeability allows for correct heat pump sizing – avoiding issues with oversizing (which wastes energy) or undersizing (which compromises comfort).
3. Heat Pump Suitability & System Design Overview
We assess the overall viability of installing an air source heat pump at your property, covering:
- Space for external units
- Electrical capacity checks
- General insulation levels
- Basic design recommendations (e.g. buffer tank need, zoning strategy)
- Estimated system size and SCOP assumptions
This stage ensures you’re not just compatible – but optimised for efficient, long-term operation.
4. Optional Add-Ons
For clients requiring a more in-depth package, we offer add-on services (quoted separately), such as:
- Full MCS-compliant heat pump design
- PAS 2035 Retrofit Coordination
- SAP or RdSAP EPC upgrades
- Thermal imaging surveys
These services are ideal for grant applications or full retrofit projects.
Ready to Get Started?
To enquire or book your technical assessment, visit www.thermcal.co.uk or reach out to our team. Site visits are typically available within 5–7 working days, and reports are delivered electronically.
Let’s make low-carbon heating work for your home – the right way, the first time.
