Plymouth · Devon

Independent Air Source Heat Pump expertise you can trust

Professional ASHP servicing, Property Readiness Assessments, and impartial system diagnostics for homeowners across Plymouth and Devon.

Why homeowners choose E.S.S

We are completely impartial. Our assessments are designed to help you make informed decisions — not to sell you unnecessary upgrade work.

PRA and PRR services with clear boundaries — no installation sales.

Secure online booking with upfront payment for fixed-price services.

NVQ Level 3, manufacturer-trained, G3 and WRAS qualified.

£179.99

Complete annual service of your Air Source Heat Pump and associated unvented hot water system.

Full payment required at booking.

£129.00

Independent pre-install assessment with thermal imaging, practical low-temperature testing, and readiness scoring.

Full payment required at booking.

£79.00

Affordable impartial health check for existing Air Source Heat Pump systems that may be underperforming.

Full payment required at booking.

£95.00

Diagnostic visit for breakdowns or underperforming systems. Ideal when your heat pump isn't working as expected.

£95 payable at booking (covers call-out and first 2 hours). Additional time beyond 2 hours is charged at £20 per hour, payable on site.