Hertfordshire · Heat pump installation
Heat pump installers in Allen's Green
Air source heat pumps in and around Allen's Green, from the first look to the final check and a fixed price agreed before work begins.
- Replacing a combi boiler with a heat pump
- Finding a place for the outdoor unit
- An oil, LPG or gas boiler near the end of its life
Let and managed properties
Under the GB F-gas rules, responsibility for leak checks is shared between whoever operates the equipment and the engineers who work on it. In a let or managed building, it’s worth agreeing who that operator is and we’re happy to deal with whoever it is.
Keeping records across a portfolio is half the battle. Each visit is written up, with F-Gas records wherever refrigerant work is involved, ready for a tenant, a buyer or an inspection.
Air source heat pumps for homes and businesses in Allen's 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. Common call-outs are for an oil, LPG or gas boiler near the end of its life and not knowing whether a grant applies, across homes heated by oil, LPG or gas, hot water cylinders and air-to-water heat pumps.
Homes around Allen's Green typically have room outside for a heat pump, so the design focuses on heat loss and radiators.
Any work on the refrigerant circuit is recorded: the work carried out, the refrigerant involved and the quantities. File them with the system’s paperwork, as a manufacturer or a future engineer may ask to see them.
- Place
- Allen's Green (CM21)
- Wider area
- Hertfordshire
- Certified
- F-Gas certified company, NICEIC approved, MCS
- Pricing
- Fixed, in writing
- Prices
- Air-to-water £8,000–£16,000 before any grant (0% VAT for homes)
- Response
- We reply the same working day
- Telephone
- 07833 053749
- Checked
- 30 October 2026
Also near Allen's Green
More services for Allen's Green
Do you need air source heat pumps in Allen's Green?
For homes with no mains gas, heated by oil or LPG, a heat pump is well worth considering. Until March 2027, an extra £1,500 is available for air source and ground source heat pumps in homes heated by oil or LPG with no mains gas where the home is eligible.
These are the situations we see most often:
- A boiler that is getting old
- Questions about listed buildings or conservation areas
- Questions about the Boiler Upgrade Scheme
Live in one of the older houses around Former Church of St Anne? Expect the survey to look closely at heat loss and at the building’s planning status.
What to look for in a quote
- Whether extra work needs your approval first
- What the manufacturer’s warranty covers and for how long
- What’s in the price and what is not
The process
Protection comes first: dust sheets over floors and furniture near the work, and we ask before moving anything. After that, anything electrical is made safe and we start. It takes several days for an air-to-water system with a new cylinder, less for an air-to-air system, and we tidy up before we leave. Pictures of the space and where the outdoor unit could go let us plan the work in Allen's Green.
- You tell us about the home and what you want from a heat pump.
- We survey for heat loss and look at radiators, cylinder space and outdoor unit options.
- You get our view on the right type for the house, and on whether the Boiler Upgrade Scheme applies.
- We install the heat pump and connect it up.
- The job ends with commissioning, the MCS certificate and a walk through the controls.
Before we arrive
- Keep pets out of the rooms we’re working in
- Mention any managing agent or landlord rules we need to follow
- Unlock any gate, garage or side passage we need
Get a fixed-price quote
For air source heat pumps in Allen's Green, ring 07833 053749 or write to us at info@aircondoctor.co.uk. Let us know the type of property and what you need, plus some photos if they’re to hand. We reply the same working day.
Related advice
Air source heat pumps in Allen's Green: the local picture
Listed buildings are part of the picture here: about 12 within half a mile of the centre, such as Farmhouse at Blounts Farm (grade II*). So the heat pump survey asks two extra questions here: is the home listed, and is it inside a conservation area? The last census (2021) found about 74% 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.
Much Hadham Palace, roughly 2.2 miles north-west, is a reminder to check your home’s listing status: permitted development doesn’t cover listed buildings.
Allen's Green is about 3 miles south-west of Bishop's Stortford, in Hertfordshire. Homes and businesses alike in Allen's Green, our engineers can help with air source heat pumps. You’ll hear back from us the same working day and our emergency line runs 24/7. Our Hertfordshire coverage runs to 381 places, Allen's Green among them. Our London page covers places nearby, about 25 miles away.
Work in CM21 follows the same survey, fixed-price quote and written records as everywhere else we cover. If you’re just outside Allen's Green, we cover Thorley (2 miles north-east), High Wych (2 miles south), Spellbrook (2 miles east), Sawbridgeworth (2 miles south-east) and Thorley Street (2 miles north-east). Within a short drive, we also cover Stevenage (13 miles west), Bishop's Stortford (3 miles north-east), Welwyn Garden City (13 miles west) and Hoddesdon (8 miles south-west).
What’s near Allen's Green
For rail, the closest station is Sawbridgeworth station, about 2.5 miles south-east. Other landmarks nearby include Herts and Essex Hospital (3.4 miles north-east) and Harlow Mill (3.2 miles south). For a walk, there’s Thorley Wash nature reserve.
Owner checks or an engineer?
On air conditioning, the filters in the indoor unit are usually the one part owners can clean, if the manual says so. They come out, get a gentle clean and go back only when they’re dry. On a heat pump, the equivalent is keeping the outdoor unit clear and checking the controls.
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. Opening up the units, the electrics and the refrigerant circuit are a job for us.
Your questions about air source heat pumps in Allen's Green
Can I get the Boiler Upgrade Scheme grant in Allen's Green?
Allen's Green is covered, as the scheme runs across England and Wales. Whether your home qualifies, and for how much, depends on the type of heat pump and the heating it replaces. You don’t apply yourself: the MCS certified installer does, which is us.
Is Allen's Green within the area you cover?
We do. Villages and hamlets get the same service as the bigger towns. Visits to smaller places are planned so the engineer arrives with what the job needs.
Will I need planning consent for an air source heat pump?
Often not in England, as many heat pumps on houses are permitted development, if the conditions are met. These include an outdoor unit of no more than 1.5 m³, compliance with MCS 020(a), not being used solely for cooling and not being within the curtilage of a listed building.
Do I get paperwork after the visit?
Yes. Every visit is written up, and any work on the refrigerant circuit goes in the F-Gas records. Keep them with the manual and the warranty documents.
Can we book visits on a schedule?
Yes. Send details of the systems and how they’re 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.
Do you offer emergency call-outs?
Yes. Our emergency line runs 24/7 for breakdowns that cannot wait. Call 07833 053749 and tell us what’s happened.
Do you work for landlords and businesses?
Yes. From a single let flat to offices, shops and public buildings, the approach is the same: a look first, a fixed-price quote and written records.
What a customer said
“Office air con broke down in the July heatwave. Called at 8am, engineer was here by noon and fixed within 2 hours. Brilliant emergency response. They now hold the service contract for the whole building.”
James T., Crawley, office manager