Hertfordshire · Heat pump installation
Chells air source heat pumps
Air source heat pumps in Chells from an F-Gas certified company, with the manufacturer’s warranty terms explained on your quote. We reply to enquiries the same working day.
- Radiators that may be too small for a heat pump
- Plans to switch to electric heating with a heat pump
- An oil, LPG or gas boiler near the end of its life
Why deal with it now?
From 1 April 2027, VAT on heat pumps in homes rises from 0% to 5%. It’s a date to bear in mind when planning, though the right time also depends on your home and heating. Waiting rarely makes an air conditioning problem smaller.
Typical ranges are on our prices page, but your price depends on the job in front of us. Call for a fixed-price quote, and we will talk you through it.
What you get with us
- Listed on Checkatrade
- Clear warranty information from the manufacturer
- 24/7 emergency line for breakdowns
- Leading brands including Daikin, Mitsubishi Electric and Fujitsu
Take a look at our cost guide and our accreditations and certificates.
About our air source heat pumps in Chells
As an MCS certified installer, we fit air source heat pumps for homes in Chells 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. The work covers air-to-water heat pumps, homes heated by oil, LPG or gas and air-to-air heat pumps, and people most often call us about questions about where the outdoor unit can go and checking eligibility for a heat pump grant.
For a house near Chells, space outside is rarely the problem, so heat loss, radiators and the electrics are what we check.
Some warranty terms depend on the system being serviced regularly by a qualified engineer. Where yours does, a regular service with us keeps that side in order and each visit is recorded.
- Where
- Chells (SG2, SG1)
- Wider area
- Hertfordshire
- Price
- A fixed price before any work starts
- Accreditations
- F-Gas certified company, NICEIC approved, MCS
- Response
- Same working day
- Guide price
- Air-to-water £8,000–£16,000 before any grant (0% VAT for homes)
- Phone
- 07833 053749
- Last updated
- 30 October 2026
Common problems we fix in Chells
Air-to-air systems interest people who want cooling in summer as well as heating. They heat rooms through wall, floor or ceiling units, and can cool them when it’s hot. Whether a grant applies depends on the scheme conditions.
It’s time to call us if you are dealing with:
- Questions about where the outdoor unit can go
- A boiler that is getting old
- No space for a hot water cylinder
Period properties close to St Hugh & St John can suit a heat pump, though insulation and any heritage protection are checked first.
Questions to ask before booking
- What’s in the price and what is not
- Whether you get F-Gas records where refrigerant is involved
- Proof of F-Gas company certification
How it works
If the system has to be off for part of the visit, we tell you before we start so it does not catch you out. For businesses, we can normally work room by room or zone by zone. On site, it takes a few days for most air-to-water installations, with air-to-air systems often quicker. Seeing the property in pictures first helps us plan the trip to Chells.
- It starts with a conversation about the home, the existing heating and your plans.
- The survey measures heat loss room by room and looks at radiators, hot water and the best spot for the outdoor unit.
- A fixed-price quote follows, setting out the system, any grant that applies and the VAT.
- We fit the outdoor unit and connect it to the heating, hot water and controls.
- We commission the heat pump, complete the MCS paperwork and talk you through the controls.
Getting ready for the visit
- Dig out any previous service or F-Gas records
- Name a contact who can meet us at the agreed time
- Give us access to the outside wall, roof or yard where the outdoor unit sits
Ask for a quote
Our prices page gives typical ranges, but your quote is based on your job, because no two buildings, rooms or systems are the same. After a look at the job, by pictures or a survey, the price is fixed. To start, call 07833 053749 or fill in the contact form.
Read more
Also near Chells
What else we do in Chells
Heat pumps in Chells: local notes
About 29 miles out from central London, Chells is part of the South East area we work across. Valuation Office Agency council tax records date about 56% of homes in Chells and the neighbourhoods around it to the post-war years, 1945 to 1972, and Census 2021 figures found about 49% of households in terraced houses. Homes of that age often have cavity walls that may or may not be insulated, which the survey checks. Terraced houses share walls with neighbours, which helps, but the outdoor unit position needs care with noise next door.
Historic houses such as Aston Bury, about 2.4 miles south, are a reminder that listed homes need consent before a heat pump goes in.
Chells is about 1 mile east of Stevenage, in Hertfordshire. For air source heat pumps in and around Chells, please give us a ring on 07833 053749 or email us for a fixed-price quote. We work across London and the South East, including Chells. Our area takes in 381 places across Hertfordshire, large and small. Our London page covers places nearby, about 29 miles away.
If you need air source heat pumps at a property on Scott Road, Eliot Road and Newton Road or a nearby road, we can help. Every address in SG2 and SG1 is within our area. We also cover the places around Chells: Stevenage (1 mile west), St Nicholas (1 mile north-west), Pin Green (1 mile west), Aston End (1 mile south-east) and Bedwell (1 mile south-west). Further out, we also cover St Albans (13 miles south-west), Bishop's Stortford (14 miles east), Welwyn Garden City (8 miles south) and Harpenden (10 miles south-west).
What’s near Chells
In Chells, that means homes and buildings near Lodge Farm Primary School, among other places. For rail, the closest station is Stevenage station, about 1.8 miles south-west of the centre. A little further out are Lister Hospital (2.1 miles north-west) and Benington Castle (2.4 miles south-east). The countryside around Chells includes Pryor's Wood.
Looking after it afterwards
After the visit, a few habits help:
- Ask about the grant before you commit
- Diary the next service
- Avoid switching the heat pump on and off often
We show you how to use the controls and explain how a heat pump works differently from a boiler. Steady running suits a heat pump better than switching on and off so we set the controls up with you.
Heat pumps prefer steady, low-temperature running, using the settings agreed at handover.
Chells questions
Can you do air source heat pumps in Chells?
Yes. Chells is one of the places we cover. To start, phone 07833 053749 or fill in the contact form with a few pictures.
Is the heat pump grant available in Chells?
Chells 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. We hold MCS certification, so the application is ours to make for you.
Who is responsible for leak checks?
Responsibility is shared between the operator, usually whoever owns or controls the equipment, and the service technicians. How often depends on the size of the refrigerant charge in tonnes of CO2 equivalent: at least yearly for 5 to under 50 tCO2e, and every 6 months for 50 to under 500 tCO2e.
How much time does a heat pump install need?
A typical installation takes several days for an air-to-water system with a new cylinder, less for an air-to-air system. The programme is planned to keep time without heating short and agreed before work begins.
How soon will you get back to me?
On the same working day you contact us. After that, we agree a survey, diagnosis or installation date that suits you, and you get a fixed price before any work goes ahead.
Do you work on commercial properties?
Yes. From a single let flat to offices, shops and public buildings, we work the same way: survey or diagnosis, a fixed price and proper paperwork.
Can you set up regular servicing?
Yes. Tell us what you have and how it’s used, and we will suggest a schedule with a fixed price. That can include the leak checks the F-gas rules require for larger systems.
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