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Heat pump outdoor unit on wall brackets on a brick commercial building on a frosty morning

Air-to-air heat pumps in Harpenden

A free survey, a clear specification and a fixed price for air-to-air heat pumps in Harpenden.

  • Free site survey and fixed written quote
  • Unit sizes, refrigerant and price set out in writing
  • Work planned around your opening hours

How much does an air-to-air heat pump cost in Harpenden?

Budget roughly £1,795–£4,250 per zone ex VAT in Harpenden. For a typical job — shop or office heated and cooled by 2–4 units — expect £4,795–£14,595 plus VAT. Your exact price is fixed in writing once we have surveyed.

An air-to-air heat pump takes heat from the outside air and releases it indoors as warm air — the same equipment as reverse-cycle air conditioning, sized and set up for heating.

Harpenden and surrounding areas

Businesses in Harpenden range from independent shops and restaurants to offices, clinics and warehouses. Luton is about 8 km away.

We cover every Harpenden postcode, including AL5. Nearby, we also cover St Albans (about 8 km), Luton (about 8 km) and Hemel Hempstead (about 9 km). Air-to-air heat pumps in Harpenden is priced from a written specification: unit sizes, positions, pipe routes, condensate, electrics, controls and commissioning are all listed.

What we do

  • Heat loss and heat gain assessment
  • Units selected for low-temperature heating output
  • Outdoor units positioned for air flow and defrost drainage
  • Commissioning and handover
  • Running-cost guidance against your current heating

Guide prices in Harpenden

These guide prices are adjusted for the East of England, where labour and access costs run about 8% above the UK guide.

Air-to-air heat pumps guide prices, Harpenden
ItemGuide price (ex VAT)Inc VATBasis
Wall-mounted heat pump unit£1,795–£3,195£2,154–£3,834per zone
Cassette heat pump unit£2,650–£4,250£3,180–£5,100per zone
Floor-standing console unit£2,095–£3,750£2,514–£4,500per zone
Removal of old electric heaters£50–£135£60–£162per heater

Ex VAT, supply and install.

From enquiry to handover in Harpenden

  1. Heat loss survey

    We assess fabric, glazing and ventilation to size for winter as well as summer. For sites in Harpenden we confirm access and parking beforehand.

  2. Design

    Units are chosen for their heating output at low outdoor temperatures, not just their cooling rating.

  3. Install

    Outdoor units go where defrost water can drain safely and air flow is not restricted.

  4. Set controls

    Schedules and set-backs are configured so the system heats efficiently.

Things to check in Harpenden

Building fabric

Draughty or poorly insulated premises need more heating capacity; simple draught-proofing can reduce the size needed.

Working hours

Most Harpenden businesses prefer noisy work outside trading hours. Early starts, evenings and weekends can be arranged and are priced up front.

Air direction

Warm air rises, so units are set to direct air down when heating.

Neighbours and noise

Outdoor units near flats — common above shops — need careful siting so noise at neighbours' windows stays low. We choose positions and quieter units with that in mind.

Types of premises we cover in Harpenden

  • Retail and shops: comfortable shop floors, stockrooms and entrances, even with the door open.
  • Salons and spas: comfortable salons and treatment rooms despite dryers, lamps and steam.

Compliance in England: refrigerant work falls under GB F-gas rules, and buildings with more than 12 kW of air conditioning in total need a periodic energy inspection (often called TM44).

Your questions answered

How much does an air-to-air heat pump cost in Harpenden?

Guide prices in Harpenden run from about £1,795 to £4,250 per zone, plus VAT. A typical job (shop or office heated and cooled by 2–4 units) costs £4,795–£14,595 plus VAT. We fix the price in writing after a free survey.

Do you also cover St Albans, Luton and Hemel Hempstead?

Yes. Alongside Harpenden, we also cover St Albans, Luton and Hemel Hempstead. Each has its own page with local guide prices.

Which postcodes do you cover in Harpenden?

All of them, including AL5. Give us your postcode when you enquire and we will confirm the visit details.

Can air conditioning really heat a building?

Yes. Reverse-cycle air conditioning is a heat pump. Sized for heating, it can be the main heat source for many commercial premises.

Do outdoor units ice up?

They frost in cold, damp weather and run short defrost cycles automatically. Drainage is planned so the water does not freeze on a path.

Talk to us about your premises in Harpenden

Free survey and fixed written quote. We reply with a guide price or to book the survey.

CallGet a quote