Hertfordshire · Heat pump installation
Heat pump installers in Childwick Green
Expert air source heat pumps for Childwick Green: a survey or diagnosis, a fixed price, careful work and proper paperwork. Call for a fixed-price quote.
- Ageing boilers that will need replacing
- Wanting to stop using oil, LPG or gas for heating
- Planning and permitted development questions
Common questions in Childwick Green
Is Childwick Green within the area you cover?
Yes, and the size of the place makes no difference to how we work. Send a few details and pictures, and we reply the same working day.
Do I need planning permission for a heat pump in Childwick Green?
That depends on the building and where the outdoor unit goes. The centre of Childwick Green is in the Childwickbury Conservation Area. On a house, an air source heat pump can often go ahead under permitted development, with an outdoor unit of no more than 1.5 cubic metres and an installation that meets MCS 020(a), which includes a noise check. Those rights don’t reach the grounds of a listed building, and conservation areas rule out walls or roofs facing a road. If that might affect you, we ask St Albans City council, which is usually the planning authority for Childwick Green.
Can we book visits on a schedule?
Yes. Tell us what you have and how it’s used and we will propose a schedule and quote for it. Leak checks required by the F-gas rules can be built in for larger systems.
Are my radiators big enough for a heat pump?
Some radiators may be fine as they are, and some may need to be larger. At the lower temperatures a heat pump uses, radiators need more surface so we check every radiator against the room’s heat loss.
Can you come out in an emergency?
Yes. For anything urgent, such as a system failing in a server room or water leaking from a unit, ring our 24/7 line and we will agree what happens next.
How do you keep the place clean during the work?
Floors and furniture near the work are covered with dust sheets before any work starts, and the area is kept tidy throughout. Before we leave, we clear up and run through the work with you.
Will you work on another installer’s system?
Yes. We look at it first and tell you what we find, including any issues with how it was fitted. Any work is priced before it goes ahead.
About our air source heat pumps in Childwick Green
We begin with a room-by-room heat loss survey. That tells us how much heat the home needs, room by room so the system is sized to match. Sizing by rule of thumb isn’t good enough. The work covers hot water cylinders, underfloor heating and homes heated by oil, LPG or gas, and people most often call us about moving away from fossil-fuel heating and checking emitters for a heat pump.
Space for an outdoor unit is rarely an issue near Childwick Green, so the design focuses on heat loss and radiators.
Each manufacturer sets its own warranty period. For instance, Daikin’s standard warranty on split air conditioning is 2 years, and its longer extensions apply to its air-to-water units only. For any other brand, we explain the manufacturer’s terms on your quote.
- Location
- Childwick Green (AL3)
- Region
- Hertfordshire
- Accreditations
- F-Gas certified, NICEIC approved, MCS
- Pricing
- A fixed-price quote up front
- Prices
- £8,000–£16,000 (0% VAT on homes), before the grant
- Call
- 07833 053749
- Reviewed
- 30 October 2026
What owners can safely do
There are a few things you can safely do yourself: keeping the outdoor unit clear, checking the mode and set temperature, and the routine cleaning in the manual. Anything inside the units, the electrics and the refrigerant is engineer’s work.
Leave the units and pipework where they are. Moving a unit involves the refrigerant circuit, so it needs an F-Gas qualified engineer, and the electrical side needs a competent person. If you need something moved, we can quote for it.
Air source heat pumps around Childwick Green
The 2021 Census found about 78% of households in detached or semi-detached houses. Finding room for the outdoor unit and a cylinder is seldom a problem in homes like these.
Live in one of the older houses around Church of St Mary? Expect the survey to look closely at heat loss and at the building’s planning status. Historic houses such as Childwickbury Manor, about 0.4 miles south-west, are a reminder that listed homes need consent before a heat pump goes in.
Childwick Green is about 2 miles south of Harpenden, in Hertfordshire. Homes and businesses alike in Childwick Green, we can help with air source heat pumps. You will hear back from us the same working day and our emergency line runs 24/7. Across Hertfordshire, we cover 381 places, and Childwick Green is one of them. London is in our area too, around 22 miles away.
If your postcode is in AL3, we can take the job on. Childwick Green and School Lane and the roads off them are all inside our area. If you are just outside Childwick Green, we cover Ayres End (1 mile north-east), Bernards Heath (2 miles south), Sandridge (2 miles east), Marshalswick (2 miles south-east) and St Albans (2 miles south). Further out, we also cover Watford (9 miles south), Hemel Hempstead (5 miles south-west), Stevenage (11 miles north-east) and Welwyn Garden City (7 miles east).
Landmarks near Childwick Green
Typical jobs here are in properties near Three Horseshoes Public House and Margaret Wix Primary School. The closest station to Childwick Green is Harpenden station, roughly 2.1 miles north of the centre. A little further out are Harpenden Museum (2 miles north) and Village Arcade St Albans (2.3 miles south). Green spaces nearby include Verulamium Lake and Grebe House Wildlife Garden.
The process
Each visit follows the same order: check the plan with you, protect the area, carry out the job, test what we have done and explain it all to you. The visit itself takes from a couple of days to around a week, depending on the system and how much of the heating changes. For a village like Childwick Green, tell us about narrow lanes, gates and parking when you book.
- First, a chat about the property and your goals for the heating.
- The survey checks heat loss, emitters, hot water and the outdoor unit position.
- We explain which type of heat pump suits the home and whether a grant could apply.
- We install the heat pump and connect it up.
- We commission it, complete the MCS certificate and show you how to use it.
How to prepare
- Tell us about parking and loading
- Make sure we can reach the consumer unit or fuse board
- Keep pets and children away from the work area
Getting a price
To help us quote: where the property is and what kind of building it is, pictures of the rooms or units, the make and model of any existing system and any symptoms, from error codes to drips. Then phone us on 07833 053749 or fill in the contact form.
Advice
When it’s something else
An honest diagnosis matters more to us than a booking, so here’s what air source heat pumps will not do:
- Planning approval where permitted development does not apply
- Draught-proofing and insulation upgrades
- Grants for hybrid systems or replacements of low-carbon systems
If you’re not sure, just ring 07833 053749 or drop us a line and we’ll give you a straight answer before you book.
What we work on in Childwick Green
- Underfloor heating
- Radiator systems
- Hot water cylinders
- Air-to-air heat pumps
- Air-to-water heat pumps
- Homes heated by oil, LPG or gas
Also near Childwick Green
Other services in Childwick Green
For landlords and property managers
When the building owner and the occupier are different, it’s worth checking the agreement for who looks after the system. We can quote either party and send the records to whoever needs them.
Bigger systems bring extra duties: systems with an effective rated output over 12 kW need a TM44 inspection by an accredited energy assessor at least every 5 years. We arrange the inspection, get the system ready and put right anything it picks up.
From one of our customers
“Very professional from the initial survey through to installation. The engineer explained everything clearly and the quote was exactly what we paid. Would not hesitate to recommend AirCon Doctor.”
David W., Haywards Heath