Hertfordshire · Heat pump installation
Heat pump installation in Digswell, Hertfordshire
Air source heat pumps across Digswell and nearby, from a site survey or diagnosis to sign-off with the price fixed before work begins.
- No space for a hot water cylinder
- Questions about where the outdoor unit can go
- Comparing heat pump types
Digswell questions
Is the heat pump grant available in Digswell?
Yes, the scheme covers homes in England, including Digswell, if they qualify. 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 is not an add-on to a boiler. The installer applies, and we’re MCS certified.
Is a heat pump in Digswell permitted development?
The answer turns on the property and where the outdoor unit would sit. Historic England lists about 15 buildings and structures within half a mile of the centre of Digswell. The permitted development rules for heat pumps leave out listed buildings and stop outdoor units going on road-facing walls or roofs in conservation areas. Anything outside the rules needs an application, and we raise it with the local planning authority (for Digswell, normally Welwyn Hatfield council) first.
Who has to arrange F-Gas leak checks?
Responsibility is shared between the operator, usually whoever owns or controls the equipment, and the service technicians. The interval depends on the refrigerant charge, measured in tonnes of CO2 equivalent: at least yearly for 5 to under 50 tCO2e, and every 6 months for 50 to under 500 tCO2e.
Are you F-Gas certified?
We are an F-Gas certified company, with NICEIC approval for electrical work and MCS certification for heat pumps. We are also Checkatrade members.
Do you offer maintenance contracts?
Yes. We offer maintenance contracts, with visits at the interval your system and the manufacturer need. Each visit is recorded, with F-Gas records where refrigerant work is involved.
Can landlords and managing agents book you?
Yes. Homeowners, landlords, agents and businesses all book us in Digswell and across Hertfordshire. Let us know who the records should go to.
Do you cover Digswell?
Yes. Our engineers work in Digswell, as part of our area across London and the South East. We are based in East Grinstead, West Sussex.
About our air source heat pumps in Digswell
Air-to-air heat pumps can qualify for a £2,500 Boiler Upgrade Scheme grant, but only in some cases. It has to replace the fossil-fuel heating, cover the whole heating demand, be fitted by an MCS certified installer and be in a home; adding it alongside a boiler does not qualify. If you are dealing with questions about where the outdoor unit can go and choosing between air-to-water and air-to-air, we can help.
If your home near Digswell has no mains gas, the grant can be bigger. Homes heated by oil or LPG with no mains gas can get an extra £1,500 on the Boiler Upgrade Scheme until March 2027.
If a fault appears while the equipment is under the manufacturer’s warranty, tell us the make, model and installation date. We’ll tell you how the manufacturer’s warranty is likely to apply before anything chargeable is done.
- Place
- Digswell (AL8, AL7, AL6)
- Region
- Hertfordshire
- Price
- A fixed-price quote up front
- Costs
- £8,000–£16,000 (0% VAT on homes), before the grant
- Response
- Same working day
- Accreditations
- F-Gas certified, NICEIC approved, MCS
- Telephone
- 07833 053749
- Last updated
- 30 October 2026
Towns and villages near Digswell
Also in Digswell
Air source heat pumps in Digswell: the local picture
The Valuation Office Agency’s council tax figures date about 67% of homes in Digswell and the neighbourhoods around it to the post-war years, 1945 to 1972, and about 46% of households live in terraced houses, according to the 2021 Census. For homes of that age, the survey checks the insulation, the radiators and the hot water setup. In a terrace, the outdoor unit position and the MCS noise check need particular care.
Homeowners near Welwyn North station often ask whether a heat pump can take over from the boiler, and the heat loss survey answers that.
Digswell is about 1 mile north of Welwyn Garden City, in Hertfordshire. Homes and businesses alike in Digswell, 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. Count every place we list in Hertfordshire and you reach 381, with Digswell on the list. Our London page covers places nearby, about 23 miles away.
Our working area takes in AL8, AL7 and AL6. From Adele Avenue, Station Road and Hertford Road to the smaller roads in between, nowhere is left out. Close to Digswell, our area also takes in Haldens (1 mile south-east), Harmer Green (1 mile north-east), Burnham Green (2 miles north-east), Oaklands (2 miles north) and Tewin (2 miles east). Further out, we also cover Watford (14 miles south-west), Hemel Hempstead (12 miles west), Stevenage (6 miles north) and St Albans (7 miles south-west).
Landmarks near Digswell
In Digswell, that means homes and buildings near Hedgehog pub, Monk's Walk School and Danesbury Park, among other places. Digswell has its own railway station: Welwyn North station. Other landmarks nearby include Howard Centre (1.3 miles south) and Datchworth Museum (2.6 miles north-east). Not far away are Tewin Orchard and Hopkyns Wood.
Looking after it afterwards
Systems last better with the right care. Here’s what we suggest:
- Find out the grant position at the survey
- Don’t block radiators or indoor units with furniture
- File the MCS certificate safely
After commissioning, the installation is registered under MCS and you receive the certificate. File it with the warranty documents, as you may need it later.
A well-insulated home helps a heat pump, as lower heat loss means the system has less to do.
When to call us in Digswell
For homes with no mains gas, heated by oil or LPG, a heat pump is well worth considering. The Boiler Upgrade Scheme includes an extra £1,500, until March 2027, for air source or ground source heat pumps in homes heated by oil or LPG with no mains gas where the home is eligible.
What we’re most often called about:
- Working out whether radiators need upsizing
- Ageing boilers that will need replacing
- Finding a place for the outdoor unit
If your home is listed, like Digswell House about 0.3 miles west, listed building consent comes before any heat pump work.
Questions to ask before you book
- The make and model of any parts or equipment being quoted
- What paperwork you will receive afterwards
- Whether anyone has checked the property or the system first
How the visit works
If the system has to be off for part of the visit, we tell you before any work starts so it does not catch you out. For businesses, we can typically work room by room or zone by zone. On site, it takes a few days on site, depending on the cylinder, the radiators and the pipework involved. Everything the job in Digswell needs is worked out beforehand.
- You tell us about the home and what you want from a heat pump.
- The survey checks heat loss, emitters, hot water and the outdoor unit position.
- We explain which type of heat pump suits the home and whether a grant could apply.
- Installation follows on the agreed dates.
- After commissioning, you get the MCS certificate and a handover.
Getting ready for the visit
- Let us know where the consumer unit is
- Let us know if the building has a permit or sign-in process
- Have the make and model of any existing unit to hand
Get a fixed-price quote
To get a fixed-price quote, phone 07833 053749 or use the quote form with the address and a few details about the rooms or units involved. A few photos make it quicker. We reply to enquiries the same working day.
Related advice
System by system
Heat loss surveys
The survey works out the heat needed room by room. It’s the basis for sizing the heat pump and the radiators.
Air-to-air heat pumps
Air-to-air heat pumps are now covered by permitted development rules in England, subject to conditions. Cooling-only units are not included, so check with the council.
A customer’s words
“Excellent service from start to finish. Two wall-mounted units installed in our home. Clean, tidy work: they protected all the floors and left no mess. The systems work brilliantly. Would highly recommend.”
Sarah M., East Grinstead