Commercial
Heating
The heating system that fits the building.
Not the brand that pays a referral
What We Do
Installation
Air, water and ground source heat pump, fan coil units & ventilation installation
Heat Pumps
Heat pump service and maintenance contracts
Heat Exchangers
Heat exchanger cleaning and optimisation
Emergency response
24/7 callout and rapid fix for critical system failures.

The low-carbon case
Reduce carbon. Reduce cost. Reduce risk.
For building directors and operations teams with ESG commitments or energy cost pressures, the move to heat pump technology is no longer a future consideration. JSA Service can assess your current heating infrastructure, model the energy and carbon savings achievable through transition to heat pump technology, and manage the full installation and commissioning process.
Our energy audit programme combines heating system optimisation with broader HVAC efficiency measures – ClimaCheck performance monitoring, maintenance improvements, and building fabric assessments – to identify a costed pathway to significant energy savings. See our Energy Audit page for the full picture.
Air Handling
Air handling units – installation and service
Legacy Systems
Legacy gas system retrofit and heat pump conversion
Energy Assessments
Energy assessments for heating systems
Planned Maintenance
Planned preventative maintenance
Case Studies

London Observation
Attraction
Chiller upgrade and
maintenance programme
for year-round reliability
and visitor comfort.
View case study

Premier Facility
HVAC optimisation and 24/7 support for elite facilities and performance environments.
View case study

Landmark Commercial Building
Refurbishment, controls upgrade and ongoing maintenance for a Grade II listed landmark.
View case study