Hertfordshire · Heat pump installation
Heat pump installers in Woolmer Green
Air source heat pumps in Woolmer Green from an F-Gas certified company, with the manufacturer’s warranty terms explained on your quote. Enquiries answered the same working day.
- Checking emitters for a heat pump
- A boiler that’s getting old
- Plans to switch to electric heating with a heat pump
How we handle air source heat pumps in Woolmer Green
We begin with a room-by-room heat loss survey. It shows how much heat each room needs on a cold day so the system is sized to match. Guesswork leads to systems that are too big or too small. The work covers air-to-air heat pumps, hot water cylinders and radiator systems, and people most often call us about planning and permitted development questions and an oil, LPG or gas boiler near the end of its life.
If your home in or near Woolmer Green is heated by oil, LPG or electric heaters with no mains gas, an extra £1,500 is available through the Boiler Upgrade Scheme until March 2027, on top of the £7,500.
Warranty on the equipment is the manufacturer’s own, on the manufacturer’s terms, and we set them out on your quote. Each brand sets its own conditions, so we go through them with you rather than leave you to find the small print.
- Location
- Woolmer Green (SG3)
- Region
- Hertfordshire
- Credentials
- NICEIC and F-Gas, MCS
- Price guide
- Air-to-water £8,000–£16,000 before any grant (0% VAT for homes)
- Quote
- Fixed-price quote after a site survey
- Phone
- 07833 053749
- Updated
- 30 October 2026
What air conditioning won’t do
In fairness, there are a few things this work will not fix:
- Tax advice on your own circumstances
- Getting planning permission or listed building consent on your behalf
- Gas boiler work, such as disconnecting the old boiler, which needs a Gas Safe registered engineer
If in doubt, call us on 07833 053749 and we will say what we think before booking.
Parts of the system we cover
- Homes heated by oil, LPG or gas
- Air-to-water heat pumps
- Hot water cylinders
- Radiator systems
- Air-to-air heat pumps
- Underfloor heating
Nearby places to Woolmer Green
What else we do in Woolmer Green
Before you call an engineer
Before you call us about a fault, a few checks can save a visit: is the system in the right mode, is the set temperature sensible, are the remote’s batteries working and has the breaker tripped. If the breaker trips a second time, leave it off and ring us on 07833 053749 or send an email.
Refrigerant is off limits for anyone without the right qualifications. Under the F-gas rules, engineers need their own qualifications and the company must be certified, and escaping refrigerant can cause cold burns. If you suspect a leak, switch the system off and call us.
Your questions about air source heat pumps in Woolmer Green
Do you cover smaller places like Woolmer Green?
Yes, and the size of the place makes no difference to how we work. A few photos and the postcode are enough to get things started.
Can I fit a heat pump in Woolmer Green without planning permission?
There’s no single answer: the building and the outdoor unit position decide it. Around 8 listed entries sit within 0.5 miles of central Woolmer Green. 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 Woolmer Green, usually Welwyn Hatfield council).
How long will it take to install a heat pump?
A typical installation takes a few days for most air-to-water installations, with air-to-air systems often quicker. The programme is planned to keep time without heating short and agreed before we start.
Will you work on another installer’s system?
Yes. We work on systems fitted by other installers as well as our own, on all the main brands. Tell us the make and model and send any paperwork you have.
Will I get records for the system?
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 I fit air conditioning or a heat pump myself?
The refrigerant side has to be done by a qualified engineer working for an F-Gas certified company. That is a legal requirement, and manufacturers expect it for their warranty too. We can quote for the whole job, from supply to commissioning.
How does the warranty work?
Warranty comes from the manufacturer and depends on the brand and product. For example, Daikin’s standard warranty on split air conditioning is 2 years and we explain the terms for your brand on the quote.
Homes in Woolmer Green and heat pumps
The last census (2021) found about 82% of households in detached or semi-detached houses. Houses normally have space for an outdoor unit and a hot water cylinder.
Older homes near Church of St Michael and All Angels may need extra checks for planning and heat loss before a heat pump is designed. Knebworth House, roughly 2 miles north-west, is a reminder to check your home’s listing status: permitted development doesn’t cover listed buildings.
Woolmer Green is about 4 miles north of Welwyn Garden City, in Hertfordshire. Anywhere in SG3, we cover air source heat pumps. Our Hertfordshire coverage runs to 381 places, and Woolmer Green is one of them. For properties nearby, see our London page (25 miles or so).
Our engineers work on London Road, Evergreen Close and New Court and the roads around them. Our working area takes in SG3, every street of it. Close to Woolmer Green, our area also takes in Oaklands (1 mile south-west), Datchworth (1 mile east), Knebworth (1 mile north), Bull's Green (1 mile south-east) and Burnham Green (1 mile south). We also work in nearby towns such as Hemel Hempstead (14 miles south-west), Stevenage (4 miles north), St Albans (9 miles south-west) and Bishop's Stortford (14 miles east).
What’s near Woolmer Green
We fit and service air conditioning in homes and premises around Danesbury Park and The North Star pub, among other places. The nearest railway station is Knebworth station, about 1 mile north of the centre. A little further out are Datchworth Museum (1 mile east) and Queen Elizabeth II Hospital (4.8 miles south). Green spaces nearby include Mardley Heath.
Looking after it afterwards
A little care keeps the system in better shape. Our advice:
- Store the MCS certificate and warranty documents together
- Leave indoor units unobstructed
- Leave space around the outdoor unit
Handover includes the controls and how to get the best from a heat pump. Heat pumps tend to work best running steadily rather than in short bursts, and we’ll explain the settings for your home.
Keep insulation and draught-proofing in good order, as lower heat loss means the system has less to do.
How the visit works
The work area is kept tidy throughout, with dust sheets down and offcuts and packaging cleared up. Any holes, fixings or cable routes are agreed with you before we drill. On site, it 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. Photos of the room and the outside of the property help us plan a visit to Woolmer Green.
- We talk through your home, your current heating and what you want from a heat pump.
- 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.
- Installation covers the outdoor unit, the indoor connections and the controls.
- We commission the heat pump, complete the MCS paperwork and talk you through the controls.
How to prepare
- Give us access to the outside wall, roof or yard where the outdoor unit sits
- Clear access to the fuse board
- Tell us about access, such as roof hatches, high walls or locked plant areas
Ask for a quote
Our prices page gives typical ranges, but your quote is based on your job, because every property is different. Once we’ve looked at the job, from pictures or on a survey, you get a fixed price. To start, give us a ring on 07833 053749 or write to us at info@aircondoctor.co.uk.
Advice
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