Hertfordshire · Heat pump installation
Heat pump installation in Thorley Street, Hertfordshire
F-Gas certified and NICEIC approved, we cover Thorley Street for heat pump installation. A fixed price before we start, and a 24/7 emergency line.
- Comparing heat pump types
- Deciding on the outdoor unit position
- Questions about the Boiler Upgrade Scheme
Air source heat pumps in Thorley Street, done properly
As an MCS certified installer, we fit air source heat pumps for homes in Thorley Street and the rest of Hertfordshire. There are two kinds: air-to-water, which heats radiators or underfloor heating and your hot water, and air-to-air, which warms rooms through indoor units and can also cool. We help you work out which suits your home. If the problem is planning and permitted development questions and comparing heat pump types, we can sort it out.
For a home around Thorley Street that’s off mains gas and heated by oil or LPG, the Boiler Upgrade Scheme adds an extra £1,500 until March 2027 for an air source or ground source heat pump, on top of the £7,500.
Some manufacturers make regular servicing by a qualified engineer a condition of their warranty. If that applies to your system, booking the service on time keeps the record straight and each visit is recorded.
- Place
- Thorley Street (CM23)
- Wider area
- Hertfordshire
- Accreditations
- NICEIC and F-Gas, MCS
- Quote
- A fixed-price quote up front
- Price guide
- £8,000–£16,000 before the grant, 0% VAT on homes
- Response
- Same working day
- Telephone
- 07833 053749
- Checked
- 30 October 2026
How it works
The visit goes in the diary at a time that works for you, and we let you know if plans need to move. When we arrive, we check the job against the survey or the pictures you sent. Anything unexpected is raised with you before we go further. From there, the work takes several days for an air-to-water system with a new cylinder, less for an air-to-air system. Somewhere like Thorley Street, it helps to know about lanes, gates and where to park.
- It begins with your house and the heating it relies on now.
- Every room’s heat loss is worked out on site.
- From those figures we size the heat pump and decide on radiators, cylinder and outdoor position.
- A fixed-price quote explains the cost, the grant position and the VAT.
- We install, commission and register the system under MCS.
Getting ready for the visit
- Let us know where we can park and unload
- Tell us about any building rules, permits or sign-in
- Clear a path to the units and the space around them
Getting a price
Every quote starts with a look at the job, from a site survey or, where the job is straightforward, from pictures and measurements. Then you get a fixed price so you know the cost before we begin.
Read more
After we’ve gone
Systems last better with the right care. Here’s what we suggest:
- Find out the grant position at the survey
- Leave indoor units unobstructed
- Use the settings explained at handover
If anything doesn’t seem right after installation, phone 07833 053749 or email us and we will talk it through. Annual servicing helps keep the system working well.
Keep insulation and draught-proofing in good order, as lower heat loss means the system has less to do.
Homes in Thorley Street and heat pumps
The 2021 Census found about 76% of households in detached or semi-detached houses. Detached and semi-detached houses usually have room for the outdoor unit and a cylinder.
Period properties close to Parish Church of St James the Great can suit a heat pump, though insulation and any heritage protection are checked first. Much Hadham Palace lies about 3.6 miles west. Owners of listed homes need consent before a heat pump is fitted, so it’s one of our first questions.
Thorley Street is about 1 mile south of Bishop's Stortford, in Hertfordshire. Anywhere in CM23, our engineers can take on air source heat pumps. Across Hertfordshire, we cover 381 places, Thorley Street among them. London, roughly 27 miles off, has its own page on this site.
If your postcode is in CM23, we can take the job on. Close to Thorley Street, our area also takes in Thorley (1 mile west), Spellbrook (1 mile south), Little Hallingbury (1 mile south-east), Bishop's Stortford (1 mile north) and Gaston Green (1 mile south-east). Further out, we also cover Stevenage (15 miles west), Hoddesdon (10 miles south-west), Cheshunt (13 miles south-west) and Hertford (11 miles west).
Landmarks near Thorley Street
Locally, jobs take us to houses, flats and workplaces close to Coach And Horses Public House and The Bishop's Stortford High School. The closest station to Thorley Street is Bishops Stortford station, roughly 1.2 miles north of the centre. Nearby you will also find Moated mound (3.4 miles north-west) and Herts and Essex Hospital (1.3 miles north-east). Open spaces near Thorley Street include Thorley Wash nature reserve and Portingbury Hills.
Why act early in Thorley Street
The 0% VAT rate on heat pumps in homes runs until 31 March 2027, then 5% applies. If you’re thinking about a heat pump, that date is worth knowing, though the right time also depends on your home and heating. Small faults tend to grow, so it’s worth dealing with them early.
Putting several jobs into one visit can make for a more efficient booking. Mention every unit or room you need covered and we will price it together.
Why choose AirCon Doctor in Thorley Street
- Mitsubishi Electric, Daikin, Fujitsu, Panasonic, Toshiba and more
- Every job looked at before it’s priced
- NICEIC approved electrical contractors
- An F-Gas certified company, as the law requires
Read what air conditioning costs and how to check a contractor.
Common questions in Thorley Street
Will a heat pump in Thorley Street need planning permission?
It comes down to the building and the spot chosen for the outdoor unit. Around 14 listed entries sit within 0.5 miles of central Thorley Street. The permitted development rules for heat pumps leave out listed buildings and stop outdoor units going on road-facing walls or roofs in conservation areas. Anything outside the rules needs an application, and we raise it with the local planning authority (for Thorley Street, typically East Hertfordshire council) first.
Is Thorley Street within the area you cover?
Yes, smaller places are covered as well as towns. A few photos and the postcode are enough to get things started.
How quickly will you reply?
On the same working day you contact us. Then we agree a date that works for you, and you get a fixed price before any work goes ahead.
Will skipping a service affect the warranty?
Check the manufacturer’s terms. Some warranty terms require the system to be serviced regularly by a qualified engineer, so it’s worth checking. Keep every service record either way.
Can I get a grant for an air-to-air heat pump?
Only in limited cases, with a grant of £2,500. It has to replace the fossil-fuel heating, meet the full heating demand, be fitted by an MCS certified installer, and be in a home.
Do you work on systems someone else installed?
Yes. Systems fitted by other companies are fine, on all the main brands. Send us the make and model, and any records you have.
Do you provide F-Gas records?
Yes. It’s the record a manufacturer or the next engineer will ask to see: a dated note of the work, with refrigerant details where they apply.
How the job changes from property to property
Radiators and underfloor heating
If radiators need upsizing, the quote lists them, so the work is clear.
Outdoor unit position and planning
Under permitted development, the outdoor unit must be 1.5 m³ or less, compliance with MCS 020(a), and use for more than cooling alone. Listed building curtilages are excluded.
Also near Thorley Street
What else we do in Thorley Street
What a customer said
“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