Hertfordshire · Heat pump installation
Heat pump installation in Langley, Hertfordshire
Air source heat pumps for Langley, from F-Gas certified engineers, with the manufacturer’s warranty terms explained on your quote. We reply to enquiries the same working day.
- Moving away from fossil-fuel heating
- Not knowing whether a grant applies
- A boiler that’s getting old
Air source heat pumps in Langley
As an MCS certified installer, we fit air source heat pumps for homes in Langley and the rest of Hertfordshire. Air-to-water systems feed your radiators or underfloor heating and hot water cylinder, while air-to-air systems heat rooms directly through indoor units and can cool them too. We help you work out which suits your home. The work covers air-to-air heat pumps, radiator systems and air-to-water heat pumps, and the jobs we see most are planning and permitted development questions and replacing a combi boiler with a heat pump.
Space for an outdoor unit is rarely an issue near Langley, so the design focuses on heat loss and radiators.
Looking after a system is mostly common sense: keep the outdoor unit clear, follow the manufacturer’s guidance on cleaning and book a service at the interval they recommend. That also helps where the warranty terms ask for regular servicing.
- Location
- Langley (SG4)
- Region
- Hertfordshire
- Accreditations
- NICEIC and F-Gas, MCS
- Quotes
- Fixed after a survey or photos
- Price guide
- £8,000–£16,000 (0% VAT on homes), before the grant
- Enquiries
- Answered the same working day
- Call
- 07833 053749
- Reviewed
- 30 October 2026
What affects the quote in Langley
Every job gets its own quote. These are the things that affect it:
- What kind of system it is
- The number of rooms, units or zones
- How easy the units are to reach
Our prices page shows typical ranges, but each job is priced on what it involves. For a fixed-price quote, call 07833 053749 or email us, and we’ll explain what it covers.
Helping us quote
Photos let us diagnose from a distance. The most useful are:
- A short video of any fault, such as a noise or a flashing light
- Your consumer unit or fuse board
- The rating plate or label on any existing unit
Here’s what helps us quote: the address and the type of property, pictures of the rooms or units, the make and model of any existing system and anything you’ve noticed, such as an error code or a noise. Then phone 07833 053749 or drop us a line.
Air source heat pumps in Langley: the local picture
Dyes Farmhouse, listed at grade II*, is one of roughly 14 protected buildings and structures in the half-mile around Langley’s centre. For a heat pump, permitted development doesn’t apply within the grounds of a listed building, and in a conservation area the outdoor unit cannot go on a wall or roof facing a road, so we check with the local planning authority (usually North Hertfordshire council) where needed. About 40% of households live in terraced houses, according to Census 2021 figures. Terraced houses share walls with neighbours, which helps, but the outdoor unit position needs care with noise next door.
A heat loss calculation decides the size of heat pump your home needs. If your home is listed, like Knebworth House about 1.3 miles south-east, listed building consent comes before any heat pump work.
Langley is about 3 miles south-west of Stevenage, in Hertfordshire. Homes and businesses alike in Langley, our engineers can help with air source heat pumps. We reply to enquiries the same working day, and there’s a 24/7 emergency line. We cover 381 places across Hertfordshire. You can also see our page for London, about 27 miles away.
If your postcode is in SG4, we can take the job on. From London Road and Village Street to the smaller roads in between, nowhere is left out. Places around Langley that are also on our list: Langley Bottom (1 mile north-west), Rush Green (1 mile north-west), St Paul's Walden (1 mile west), Old Knebworth (2 miles south-east) and Driver's End (2 miles south). Larger places within reach include Hemel Hempstead (13 miles south-west), Stevenage (3 miles north-east), St Albans (10 miles south-west) and Welwyn Garden City (6 miles south).
Near you in Langley
Typical jobs here are in properties near Concerts at Knebworth House and Farmers Boy Public House and the streets around them. For rail, the closest station is Stevenage station, roughly 1.5 miles north-east of the centre. Nearby you’ll also find Lister Hospital (2.7 miles north) and Wymondley Castle (3.7 miles north). The countryside around Langley includes Ridlins Mire.
Also near Langley
More services for Langley
What air source heat pumps cannot fix
It’s worth knowing the limits before booking:
- Improving the building’s insulation
- Planning approval where permitted development doesn’t apply
- Grants for hybrid systems or replacements of low-carbon systems
If you are not sure, just ring 07833 053749 or send an email and we will give you a straight answer before booking.
Where we work
- Air-to-air heat pumps
- Air-to-water heat pumps
- Hot water cylinders
- Underfloor heating
- Homes heated by oil, LPG or gas
- Radiator systems
FAQs for Langley
Is Langley within the area you cover?
Yes, smaller places are covered as well as towns. Send a few details and pictures, and we reply the same working day.
Is the heat pump grant available in Langley?
Langley is in England, where the Boiler Upgrade Scheme runs. It gives £7,500 towards an air-to-water or ground source heat pump, or £2,500 towards an air-to-air heat pump that replaces the fossil-fuel heating and meets the whole home’s heating need. As an MCS certified installer, we apply for it on your behalf.
What accreditations do you have?
F-Gas company certification, NICEIC approval for electrical work and MCS certification for heat pumps, and we’re Checkatrade members. Engineers who handle refrigerant hold their own F-gas qualifications as well.
How long does a heat pump installation take?
Expect it to take a few days for most air-to-water installations, with air-to-air systems often quicker. How much of the heating changes decides most of the time and the timing is set out with your quote.
Do you look at the job first?
Yes. Every job is looked at first, either on a site survey or from photos and details for simple jobs. A fixed-price quote follows.
Do I need to service the system to keep the warranty?
Each manufacturer decides. Where servicing is a condition, a missed service could give the manufacturer grounds to refuse a claim and we will tell you what your brand asks for.
What does F-Gas certified mean?
Certification shows a business is approved to work on systems that hold F gas refrigerant. In Great Britain, that certification is a legal requirement, not an optional extra, and AirCon Doctor is certified.
The process
Wherever the system can be run before we leave, we run it and check it in operation. Then we show you what we have done and answer any questions, and anything that needs a follow-up is pointed out there and then. The visit takes from a couple of days to around a week, depending on the system and how much of the heating changes. Rural lanes and tight entrances are worth mentioning before a visit to Langley.
- We start with your plans and the property.
- We survey for heat loss and look at radiators, cylinder space and outdoor unit options.
- You get our view on the right type for the house, and on whether the Boiler Upgrade Scheme applies.
- We install the heat pump and connect it up.
- We commission it, complete the MCS certificate and show you how to use it.
Preparing for the visit
- Keep pets out of the rooms we’re working in
- Mention any roof access, ladders or high-level work
- Mention any managing agent or landlord rules we need to follow
Getting a price
For air source heat pumps in Langley, call 07833 053749 or fill in the contact form. Tell us what kind of property it is and what you’d like done, plus some pictures if they’re to hand. We reply the same working day.
Related advice
Before you call an engineer
Never try to top up, release or handle refrigerant yourself. The law requires anyone working on equipment containing F gas to hold the right qualifications, and the company to be certified, and refrigerant lines can cause cold burns. If you suspect a leak, switch the system off and call us.
Some faults have simple causes you can check first: check the mode, the set temperature, the remote’s batteries and the breaker. If a breaker trips again after you reset it, leave it off and ring us on 07833 053749 or drop us a line.
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