Hertfordshire · Heat pump installation
Holwell air source heat pumps
Air source heat pumps across Holwell and nearby, from the first look to the final check and a fixed price agreed before any work starts.
- Checking emitters for a heat pump
- A boiler that is getting old
- Plans to switch to electric heating with a heat pump
Air source heat pumps for homes and businesses in Holwell
Air-to-air heat pumps can qualify for a £2,500 Boiler Upgrade Scheme grant, but only in some cases. 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, so an add-on next to a boiler is not eligible. If you’re dealing with checking emitters for a heat pump and no space for a hot water cylinder, we can sort it out.
In a place like Holwell, some homes are listed, because permitted development does not apply within the grounds of a listed building, so consent comes first.
Think of the paperwork as the system’s health record: a dated account of the work and the readings we took. If anything goes wrong later, it helps the next engineer and the manufacturer, so keep it safe.
- Place
- Holwell (SG5)
- Region
- Hertfordshire
- Certified
- F-Gas certified, NICEIC approved, MCS
- Costs
- £8,000–£16,000 (0% VAT on homes), before the grant
- Replies
- Same working day
- Quote
- Fixed-price quote after a site survey
- Call
- 07833 053749
- Last updated
- 30 October 2026
The process
We book the visit for a day and time that suit you, and we let you know if plans need to move. When we arrive, we check the job against the survey or the photos you sent. Anything unexpected is raised with you before we go further. After that, 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. Somewhere like Holwell, it helps to know about lanes, gates and where to park.
- First, a chat about the property and your goals for the heating.
- A survey covers heat loss, radiators, hot water and where the outdoor unit could sit.
- We recommend air-to-water or air-to-air and check the grant position.
- Installation follows on the agreed dates.
- The job ends with commissioning, the MCS certificate and a walk through the controls.
Before we arrive
- Make sure we can reach the outdoor unit, or where it will go
- Tell us about parking and loading
- Let us know if the building has a permit or sign-in process
Get a fixed-price quote
Here’s what helps us quote: the address and the type of property, a few photos, the brand and model of anything already fitted and any symptoms, from error codes to drips. Once you have those, ring 07833 053749 or write to us at info@aircondoctor.co.uk.
Related advice
When to call us in Holwell
Some homes heated by electric heaters or storage heaters consider a heat pump instead. The survey tells you whether it’s practical and what’s involved along with whether any grant could apply.
If any of these sounds familiar, it’s worth a diagnosis:
- Working out where a cylinder could go
- Working out whether radiators need upsizing
- Finding a place for the outdoor unit
A heat loss calculation decides the size of heat pump your home needs.
What to look for in a quote
- Proof of F-Gas company certification
- If the quote is based on a survey, photos or a diagnosis
- What’s in the price and what isn’t
What the work involves, system by system
Hot water cylinders
Hot water from an air-to-water system is stored in a cylinder. Space for the cylinder is part of the survey, especially if you have a combi boiler.
Air-to-air heat pumps
An air-to-air system heats rooms directly and can also provide cooling. Hot water needs a separate source, so that has to come from elsewhere.
Rented and managed buildings
We regularly work with managing agents. Send the address, what’s needed and how access works, and we’ll send a fixed-price quote.
From a single flat to a whole estate, the approach is the same: diagnosis, a fixed price, access agreed with the people on site and paperwork at the end.
Nearby places to Holwell
Other services in Holwell
FAQs for Holwell
Can I get the Boiler Upgrade Scheme grant in Holwell?
Holwell is covered, as the scheme runs across England and Wales. For an air-to-water heat pump the amount is £7,500; an air-to-air system can get £2,500 if it replaces the fossil-fuel heating outright, meets the home’s full heating demand and isn’t an add-on to a boiler. As an MCS certified installer, we apply for it on your behalf.
Is a heat pump in Holwell permitted development?
It depends on the property. Historic England lists about 10 buildings and structures within half a mile of the centre of Holwell. 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 don’t 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 Holwell, usually North Hertfordshire council).
Which brands do you work with?
Mitsubishi Electric, Daikin, Fujitsu, Panasonic, Toshiba, LG, Samsung, Mitsubishi Heavy Industries, Hitachi and others. For a new system, we suggest the make and model that suit the property and explain why.
How much does an air source heat pump cost?
For air-to-water, the price is £8,000–£16,000 (0% VAT on homes) before any grant. Eligible homes in England and Wales can get £7,500 through the Boiler Upgrade Scheme, and we confirm eligibility before you commit.
Do I need new radiators for a heat pump?
Some radiators may be fine as they are, and some may need to be larger. Heat pumps run at lower flow temperatures, so radiators give out less heat, and the survey checks each one.
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.
How quickly will you reply?
The same working day. Then we agree a date that works for you, and you get a fixed price before any work goes ahead.
What a heat pump looks like in Holwell
About 41% of homes in the Holwell area have been built since 2000, according to Valuation Office Agency council tax records, and about 71% of households live in detached or semi-detached houses, according to the 2021 Census. Lower heat loss in recent homes often means a smaller heat pump and fewer radiator changes. Houses typically have space for an outdoor unit and a hot water cylinder.
Period properties close to Church of St Peter (C of E) at Corner with Holwell Road can suit a heat pump, though insulation and any heritage protection are checked first.
Holwell is about 3 miles north-west of Hitchin, in Hertfordshire. Properties in Holwell get the same service as everywhere we cover: a look at the job first, a fixed-price quote and written records at the end. In Hertfordshire alone we list 381 places and Holwell is among them. The nearest of our city pages is London, around 35 miles from Holwell.
If your postcode is in SG5, we can take the job on. From Gurney's Lane, Pirton Road and Rand's Meadow to the smaller roads in between, the whole area is covered. Neighbouring places we cover include Pirton (2 miles south-west), Shillington (3 miles west), Apsley End (3 miles west), Hanscombe End (3 miles west) and Pegsdon (3 miles south-west). We also work in nearby towns such as Stevenage (7 miles south-east), Welwyn Garden City (14 miles south), Harpenden (12 miles south) and Hitchin (3 miles south-east).
Local landmarks in Holwell
Holwell’s nearest station is Hitchin station, roughly 2.8 miles south-east. Well-known places in the area include Wymondley Castle (4.3 miles south-east) and Fairfield Hospital (2.7 miles north-east). Open spaces near Holwell include Markham's Hill and Oughtonhead Nature Reserve.
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