How Long Does a Heat PumpInstallation Take in Scotland?
From your first call to a fully installed, grant-funded heat pump: typically 8–12 weeks. Here is every stage broken down — including how long the government grant application takes and what can affect the timeline.
Your Complete Timeline
You call us
Phone 0141 230 0198. We take your details and arrange the free survey. Surveys are typically available within 3–5 working days.
Free property survey
Engineer visits. Heat loss calculation. Radiator check. Grant eligibility confirmed. You receive a written quote and system design.
Quote accepted
You review the proposal and written quote. No pressure. You accept when ready. We prepare the grant application documents.
Grant application submitted
We submit the application to the grant scheme administrator on your behalf. You have signed one form. Typical approval time: 2–4 weeks.
Grant approved
The grant scheme administrator notifies grant approval. Installation date booked. Equipment ordered. Typically 2–4 weeks from approval to installation start.
Installation
We install through MCS-certified partners. Your system is installed over 2–3 days. Old system removed. Heat pump installed, commissioned, tested.
Certificates + handover
MCS certificate issued. DNO notified. Full handover and controls walkthrough. You are now the owner of a grant-funded heat pump.
What Can Affect the Timeline?
Most installations complete within 8–12 weeks. Here's what can extend that.
Survey availability
Peak periods (autumn) can see slightly longer survey wait times — up to 7 working days rather than 3–5.
Grant processing time
The grant scheme administrator processes most applications within 2–4 weeks. Complex applications or additional information requests can take longer.
Installation scheduling
Summer installations can be booked sooner than winter peak. Highland and island properties may need additional logistics planning.
Additional work required
If significant radiator upgrades or pipework changes are needed, installation may extend to 3–4 days.
Listed building consent
Listed buildings requiring planning consent for the outdoor unit add time. SEE advises on this at the survey stage.
Timeline Questions Answered
How long does a heat pump installation take from first call to completion?
Typically 8–12 weeks. This includes the free survey (3–5 working days), government grant application (2–4 weeks approval), installation scheduling, and the 2–3 day installation itself.
How long does the actual installation take?
2–3 days on-site for a standard installation. Day 1: outdoor unit, pipework. Day 2: indoor unit, cylinder, controls. Day 3: commissioning, testing, handover. Properties requiring significant radiator upgrades may take an additional half day.
How long does the government grant application take?
The grant scheme administrator typically processes applications within 2–4 weeks of submission. Scottish Energy Efficiency submits the application on your behalf — you are not involved in chasing or managing the process.
Can the installation happen before the grant is approved?
No — the government grant must be approved before installation begins. This protects you: the grant amount is confirmed before any work starts.
What is the fastest the whole process can happen?
In ideal conditions: survey within 3 days, quote accepted quickly, grant approved in 2 weeks, installation scheduled within 2 weeks of approval — a minimum of approximately 6–7 weeks is realistic.
Is there a best time of year to start the process?
Starting in spring (March–May) often means installation is completed before the heating season begins in autumn. Summer installations typically have shorter wait times than the autumn peak.
Do I have to take time off work for the installation?
Someone needs to be home for the 2–3 days of installation. The installation team typically works 8am–5pm. Exact hours are confirmed when your installation is booked.
What happens if there are delays?
Scottish Energy Efficiency keeps you informed of progress at each stage. Grant delays are rare but do occur. Equipment lead times are factored in at the scheduling stage. Most delays are minor and are resolved without affecting the final outcome.
Start Your 8-Week Journey Today
Call now. Survey within 3–5 working days. Warm home in 8–12 weeks.
