Design starts with the load: a heat loss calculation for the building, its occupancy and opening hours, how much hot water it uses and whether any spaces need cooling. From that we propose plant sizes and positions, on a roof, in a yard or in a plant enclosure, with the structural, electrical and noise checks each position needs. Larger plant may need a three-phase supply, which the network operator may need to provide or confirm.
For blocks of flats in Ayrshire, we assess whether individual units or a communal system suits the building and how it is managed. Offices and shops in Ayrshire with a flat roof or rear yard often have space for outdoor plant, checked for structure and access. On busy Ayrshire high streets, deliveries and crane lifts are scheduled around access restrictions and opening hours.
Who it suits
- Premises that also want cooling in some areas
- Landlords and managing agents planning low-carbon upgrades
- Buildings with roof or yard space for outdoor plant
- Offices, shops and small commercial premises replacing gas or oil boilers
Grants and rules for heat pumps in Scotland
In Scotland, heat pump funding comes through Home Energy Scotland rather than the Boiler Upgrade Scheme: a grant of up to £7,500 (up to £1,500 extra for eligible rural and island homes) and an optional interest-free loan of up to £7,500. For a home in Ayrshire, apply and receive the written offer before the installation date is fixed.
Installing heat pumps is zero-rated for VAT across the UK until 31 March 2027. Scotland has its own permitted development rules for air source heat pumps and its own building standards, so we confirm what applies to your property at survey.
Prices
Commercial systems are priced after a site survey and load calculation.
Towns we cover in Ayrshire
We cover 11 towns in Ayrshire for commercial heat pump installation. Each links to local guide prices and the grant position for Scotland.
| Town | Postcode district | Nearest town | Midwinter daylight |
|---|---|---|---|
| Kilmarnock | KA1 | Stewarton | 7 h 02 min |
| Ayr | KA8 | Prestwick | 7 h 04 min |
| Irvine | KA12 | Saltcoats | 7 h 02 min |
| Ardrossan | KA22 | Saltcoats | 7 h 01 min |
| Cumnock | KA18 | Prestwick | 7 h 04 min |
| Girvan | KA26 | Ayr | 7 h 07 min |
| Largs | KA30 | Ardrossan | 6 h 59 min |
| Prestwick | KA8 | Ayr | 7 h 04 min |
| Saltcoats | KA21 | Ardrossan | 7 h 02 min |
| Stewarton | KA3 | Kilmarnock | 7 h 01 min |
| Troon | KA10 | Prestwick | 7 h 03 min |
Commercial heat pump installation questions
What is a cascaded heat pump system?
A cascaded system links two or more outdoor heat pump units to one controller, which runs as many units as demand needs. On mild days one unit might run; on cold days all of them. This keeps each unit working efficiently, spreads wear across the units and means heating can usually continue at reduced output if one unit needs repair or servicing.
Can commercial heat pumps provide cooling as well?
Some can. Air-to-water heat pumps are mainly used for heating and hot water, but certain units can also supply chilled water for fan coil units. Air-to-air systems heat and cool directly through indoor units and suit offices and shops where cooling is wanted. The survey identifies which areas need cooling and recommends a system to match.
Can heat pumps go on a flat roof?
Yes, flat roofs are a common position for commercial plant. The roof needs a structural check for the weight of the units and their frames, and the installation usually needs a lifting plan, anti-vibration mounts, drainage for defrost water and safe access for maintenance. Pipe and cable routes from the roof into the building are planned at survey.
Can you install without closing the business?
Usually, yes. Outdoor plant, pipework and controls can often be installed while the existing heating still runs, with the switchover planned for a short window, such as a weekend or a quieter time of year. Work inside occupied areas can be phased. The programme in your quote sets out what happens when, so you can plan staff and customers around it.