Hertfordshire · Heat pump installation
Heat pump installation in St Leonards, Hertfordshire
MCS certified installation of air source heat pumps for heating and hot water, with the boiler upgrade scheme grant applied for, for St Leonards and the surrounding area. Ask us for a fixed-price quote, and we’ll reply the same working day.
- Plans to switch to electric heating with a heat pump
- Questions about listed buildings or conservation areas
- Deciding on the outdoor unit position
Air source heat pumps in St Leonards
An air-to-water heat pump heats water to a lower temperature than a typical boiler, so radiators may need to be larger to give out the same heat. The survey shows which rooms are fine and which need changes and anything that needs changing is in the quote. The work covers radiator systems, homes heated by oil, LPG or gas and underfloor heating, and people most often call us about checking emitters for a heat pump and deciding which kind of heat pump suits the home.
Older and listed homes in villages like St Leonards need extra care, and permitted development does not cover listed buildings, so we check consent first.
Nothing is signed off by word of mouth: commissioning details for an installation, a fault and repair note for a repair, or a record of the service. File it with the manual so it’s to hand next time.
- Where
- St Leonards (HP23)
- Wider area
- Hertfordshire
- Response
- Same working day
- Approvals
- NICEIC approved, F-Gas certified, MCS
- Quotes
- Fixed after a survey or photos
- Prices
- Air-to-water £8,000–£16,000 before any grant (0% VAT for homes)
- Phone
- 07833 053749
- Checked
- 30 October 2026
Honest limits
We won’t sell you work that does not address the problem, so these are the things it will not cover:
- Planning decisions, which rest with the council
- Tax rulings, which only HMRC can give
- Any gas work on the existing boiler
If you’re not sure, just ring 07833 053749 or write to us at info@aircondoctor.co.uk and we’ll give you a straight answer.
Where we work
- Air-to-water heat pumps
- Homes heated by oil, LPG or gas
- Underfloor heating
- Radiator systems
- Air-to-air heat pumps
- Hot water cylinders
Different systems, different jobs
Heat loss surveys
The survey works out the heat needed room by room. Everything else is sized from it.
Air-to-air heat pumps
Air-to-air heat pumps warm rooms through indoor units and can cool them in summer. Hot water needs a separate source, so that has to come from elsewhere.
Nearby places to St Leonards
Other services in St Leonards
Common questions in St Leonards
Will a heat pump in St Leonards need planning permission?
The answer turns on the property and where the outdoor unit would sit. The half-mile around the middle of St Leonards holds about 3 listed buildings and structures. Heat pumps on houses are often permitted development, but listed buildings need consent and conservation areas restrict outdoor units facing a road. Where it’s needed, we check with the local planning authority (for St Leonards, normally Buckinghamshire council).
Do you cover smaller places like St Leonards?
Yes, and the size of the place makes no difference to how we work. A few pictures and the postcode are enough to get things started.
Can I do the refrigerant work 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 it also matters for the manufacturer’s warranty. We can quote for the whole job, from supply to commissioning.
Does servicing affect my warranty?
That depends on the brand. If servicing is in the terms, missing one could affect a claim, so we explain the terms on your quote.
Do you offer maintenance contracts?
Yes. Send details of the systems and how they’re used and we’ll propose a schedule and quote for it. Leak checks required by the F-gas rules can be built in for larger systems.
Do you look at the job first?
Yes. Photos often do the job for simple work, while larger systems and faults that need testing are seen on site.
Why use an F-Gas certified company?
Anyone installing, repairing or servicing the refrigerant side must be qualified, and their company certified. Ask to see proof before you book anyone, and we’re happy to show ours.
Heat pumps in St Leonards: local notes
St Leonards is about 31 miles from central London, well within the area we cover from our base in East Grinstead.
Live in one of the older houses around Church of St Leonard? Expect the survey to look closely at heat loss and at the building’s planning status. Cholesbury Manor House, roughly 1.1 miles east, is a reminder to check your home’s listing status: permitted development doesn’t cover listed buildings.
St Leonards is about 4 miles north-west of Chesham, in Hertfordshire. For air source heat pumps in and around St Leonards, it’s easy to get a fixed-price quote: please ring 07833 053749 or use the quote form. Our area covers London and the South East, St Leonards included. Our list for Hertfordshire has 381 entries and St Leonards is among them. The nearest of our city pages is London, around 31 miles from St Leonards.
All of HP23 is covered. Whether you’re on Bottom Road, Gilbert's Hill and Jenkins Lane or anywhere close by, our engineers can take on the work. Places around St Leonards that are also on our list: Buckland Common (1 mile east), Cholesbury (1 mile east), Hastoe (1 mile north), Swan Bottom (1 mile south-west) and Lee Common (2 miles south). Further out, we also cover Watford (14 miles south-east), Hemel Hempstead (9 miles east), St Albans (15 miles east) and Harpenden (15 miles east).
Landmarks near St Leonards
Locally, jobs take us to houses, flats and workplaces close to White Lion Public House and the streets around them. St Leonards’s nearest station is Wendover station, roughly 2.9 miles west of the centre. Well-known places in the area include Trenchard Museum (2.2 miles north-west) and Hawridge Court (2.5 miles south-east). The countryside around St Leonards includes Dancersend Nature Reserve and Pavis Wood.
For landlords and property managers
Portfolio owners often want one contractor and one number. We work across London and the South East, so a run of properties can go into one programme and kept to a regular schedule.
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.
How the visit works
The visit has three parts, a bit like a doctor’s appointment: diagnose, treat and sign off. First comes a careful look at the system or the space, then we do the work, and finally we test, record and explain. The middle part takes longest, which takes anything from a couple of days for air-to-air to the best part of a week for air-to-water with radiator changes. We agree a date with you and plan the visit to St Leonards so we arrive with what’s needed.
- First we find out about the property, the heating you have now and what you are hoping for.
- The survey measures heat loss room by room and looks at radiators, hot water and the best spot for the outdoor unit.
- You get a fixed-price quote, with any grant you are eligible for and the VAT explained.
- Fitting day: the outdoor unit is placed, the indoor side connected and the controls set up.
- Commissioning, MCS certification and a handover of the controls finish the job.
Before we arrive
- Arrange for someone to be there to let us in
- Tell us about any building rules, permits or sign-in
- Give us access to the outside wall, roof or yard where the outdoor unit sits
Getting a price
To get a fixed-price quote, ring us on 07833 053749 and tell us about the property and what you need. A few pictures make it quicker. We reply to enquiries the same working day.
Advice
A customer’s words
“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