Hertfordshire · Heat pump installation
The Flints air source heat pumps
For air source heat pumps in The Flints, one call is all it takes: diagnosis, fixed price, work and sign-off. F-Gas certified, NICEIC approved and Checkatrade members.
- Radiators that may be too small for a heat pump
- Plans to switch to electric heating with a heat pump
- Checking whether planning permission is needed
Keeping the system healthy
So the system stays in good health:
- Keep up with insulation and draught-proofing
- Do not block radiators or indoor units with furniture
- Keep to regular servicing
In cold, damp weather the outdoor unit runs a defrost cycle from time to time. It may give off steam or sound different for a few minutes and it’s part of how the system works.
Book a service every year. Your manufacturer’s warranty terms may say something about servicing.
How we handle air source heat pumps in The Flints
A £2,500 grant is available for some air-to-air heat pumps, with conditions. The system must replace the existing fossil-fuel heating and meet the home’s full heating demand, it must be installed by an MCS certified installer, and it must be in a home; adding it alongside a boiler doesn’t qualify. If the problem is working out whether radiators need upsizing and comparing heat pump types, we can sort it out.
Space for an outdoor unit is rarely an issue near The Flints, so the design comes down to heat loss, radiators and hot water.
Refrigerant work is written up in the F-Gas records: the work carried out, the refrigerant involved and the quantities. Keep the records with the manual and the warranty documents, as a manufacturer or a future engineer may ask to see them.
- Location
- The Flints (SG5)
- Wider area
- Hertfordshire
- Costs
- £8,000–£16,000 before the grant, 0% VAT on homes
- Response
- Answered the same working day
- Certified
- F-Gas certified, NICEIC approved, MCS
- Quotes
- A fixed-price quote up front
- Telephone
- 07833 053749
- Reviewed
- 30 October 2026
What we do, step by step
The visit has three parts, a bit like a doctor’s appointment: diagnose, treat and sign off. First we check the system or the space against the plan, then the work itself, and finally we test, record and explain. Most of the time goes on the middle part, and that takes from a couple of days to around a week, depending on the system and how much of the heating changes. Work in The Flints is booked in advance at a time that suits you.
- It begins with your house and the heating it relies on now.
- We measure heat loss for every room.
- From those figures we size the heat pump and decide on radiators, cylinder and outdoor position.
- Cost, grant and VAT appear on one fixed-price quote.
- Installation, commissioning and MCS registration complete the job.
Getting ready for the visit
- Mention any managing agent or landlord rules we need to follow
- Make sure we can reach the outdoor unit, or where it will go
- Move furniture away from the wall where we’ll be working
Getting a price
Every quote shows the VAT clearly, with the rate that applies to your job. VAT can differ between homes and businesses and between kinds of work, so we confirm it on the quote. To get one, give us a ring on 07833 053749 or fill in the contact form.
Related advice
Air source heat pumps in The Flints: the local picture
The 2021 Census found about 72% 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.
A heat loss calculation decides the size of heat pump your home needs. Older homes near Church of St Mary Magdalene may need extra checks for planning and heat loss before a heat pump is designed.
The Flints is about 4 miles south-west of Hitchin, in Hertfordshire. Whatever kind of property you have in The Flints, 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. Count every place we list in Hertfordshire and you reach 381, with The Flints on the list. The nearest of our city pages is London, around 32 miles from The Flints.
Here we cover the SG5 postcode area. Places around The Flints that are also on our list: Great Offley (1 mile east), Temple End (2 miles east) and Ley Green (2 miles south-east). Larger places within reach include Hemel Hempstead (13 miles south), Stevenage (7 miles east), St Albans (12 miles south) and Welwyn Garden City (11 miles south-east).
Local landmarks in The Flints
We fit and service air conditioning in homes and premises around The Bull Public House. The closest station to The Flints is Luton station, roughly 4.1 miles south-west of the centre. Well-known places in the area include Ravensburgh Castle (2.7 miles north-west) and John Dony Field Centre (2.9 miles south-west). The countryside around The Flints includes Markham's Hill and Pegsdon Hills.
Why it’s worth doing now in The Flints
Radiators that are too small for a heat pump’s lower flow temperature leave rooms cool. Checking and upsizing them as part of the installation avoids that. Waiting rarely makes an air conditioning problem smaller.
The cost depends on the system and the number of rooms or units, how easy the units are to reach and the parts and time the job needs. You get a fixed price before we start, so you know where you stand.
What you get with us
- We reply to enquiries the same working day
- Leading brands including Daikin, Mitsubishi Electric and Fujitsu
- Clear warranty information from the manufacturer
- Listed on Checkatrade
See our cost guide and our accreditations.
What air conditioning won’t do
To be straight with you, there are a few things this work won’t fix:
- A grant for a home that doesn’t meet the scheme rules
- Planning decisions, which rest with the council
- Disconnecting or servicing a gas boiler
Not sure which it is? You can ring us on 07833 053749 or write to us at info@aircondoctor.co.uk and we’ll tell you honestly.
Where we work
- Air-to-water heat pumps
- Homes heated by oil, LPG or gas
- Underfloor heating
- Air-to-air heat pumps
- Hot water cylinders
- Radiator systems
Common questions in The Flints
Do you cover smaller places like The Flints?
Yes, smaller places are covered as well as towns. We are based in East Grinstead and plan each visit so the job can be finished in one trip where possible.
Is planning permission needed for a heat pump in The Flints?
It comes down to the building and the spot chosen for the outdoor unit. The half-mile around the middle of The Flints holds about 5 listed buildings and structures. 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 do not 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 the local planning authority (for The Flints, usually North Hertfordshire council).
Can I do any of the installation myself?
Anything that involves the refrigerant needs an F-Gas qualified engineer from a certified company. That is the law, not just our preference, and manufacturers expect it for their warranty too. We can quote for the whole job, from supply to commissioning.
Is there a Boiler Upgrade Scheme grant for air-to-air?
Sometimes, and the amount is £2,500 rather than £7,500. It must replace fossil-fuel heating and meet the full heating demand of a home, installed by an MCS certified installer.
What does F-Gas certified mean?
For refrigerant work, both the engineer and the company need the right F-gas credentials. It’s worth checking before booking and we will gladly show you ours.
How long will it take to install a heat pump?
An installation takes a few days on site, depending on the cylinder, the radiators and the pipework involved. The survey lets us set a firm programme, so phone us on 07833 053749 or use the quote form to arrange one.
Do you look at the job first?
Yes. We always look before we price, either on a site survey or from pictures and details for simple jobs. Then you get a fixed-price quote.
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A customer’s words
“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