- Area
- County Durham
- Postcode district
- DL1
- Nation
- England
- Guide price
- From £9,200 inc VAT
- Survey
- Free for installation enquiries
Before you book: replacing an oil or LPG boiler with a heat pump in Darlington
In Darlington, as anywhere in the UK, the heat pumps that perform well are the ones designed around low flow temperatures and sized from a proper heat loss calculation.
Bungalows and detached houses near Darlington running on LPG can move to a heat pump, with the tank collected by the supplier. If your home near Darlington is off the mains gas grid, a heat pump removes the need for oil or LPG deliveries.
Off-gas homes have a lot to plan when switching to a heat pump: the fuel tank, older walls, rural power supplies and higher heat loss.
- Detached houses and bungalows with garden space for the unit
- Owners tired of fuel deliveries and tank maintenance
- Eligible homes in England and Wales within the higher grant window
What's included
- Oil tank draining and removal or making safe, as set out in your quote
- Free survey with a detailed heat loss calculation for older construction
- MCS certificate and grant application in England and Wales where eligible
- Removal of the oil or LPG boiler and flue
- Outdoor unit, heat pump cylinder, controls and radiator changes
Owners across County Durham can have oil tank removal arranged alongside a heat pump installation in Darlington.
Grants and rules for heat pumps in England
In England the Boiler Upgrade Scheme gives £7,500 towards an air source heat pump (£9,000 if it replaces oil or LPG, from 21 July 2026 to 31 March 2027), and since 28 April 2026 a valid EPC is no longer needed. The grant is applied for by the MCS-certified installer and shown as a deduction on your Darlington quote.
Installing heat pumps is zero-rated for VAT across the UK until 31 March 2027. Since 29 May 2025, permitted development in England allows up to two air source heat pumps on a house, each up to 1.5 m³, with no blanket 1 m boundary rule — the installation must still meet the MCS planning standards, including the noise check. Listed buildings, flats and some conservation-area positions need extra consent, which we check at survey.
Oil and LPG boiler replacement costs around Darlington
Guide prices for Darlington and the rest of County Durham are shown below, installed and inc VAT. We publish ranges rather than a single figure because design details move the price, and the written quote after survey fixes it.
| Home | Typical size | Installed guide price | After £9,000 grant |
|---|---|---|---|
| 1–2 bedroom flat or small terrace | 4–5 kW | £9,200–£12,150 | £200–£3,150 |
| 2–3 bedroom terrace or semi | 5–7 kW | £10,200–£13,100 | £1,200–£4,100 |
| 3 bedroom semi or small detached | 6–9 kW | £11,650–£15,050 | £2,650–£6,050 |
| 4 bedroom detached | 8–12 kW | £13,600–£17,450 | £4,600–£8,450 |
| 5+ bedroom or larger older house | 11–16 kW | £16,000–£21,850 | £7,000–£12,850 |
Installed, inc VAT: unit, cylinder, controls, minor pipework and commissioning. The £9,000 Boiler Upgrade Scheme figure applies to oil and LPG replacements in England and Wales installed from 21 July 2026 to 31 March 2027.
How long is the heating season in Darlington?
On the shortest day Darlington gets only about 7 hours 16 minutes of daylight and the noon sun sits around 12° above the horizon. Northern winters tend to be longer, so a well-designed, efficient system matters more here because it runs for more of the year.
From survey to switch-on in Darlington
- Start online with a guide price or call us.
- A home survey in Darlington gives us the room-by-room heat loss.
- Your written quote sets out the design, the price and the grant position where you live.
- Installation is booked for dates that suit you; most homes take 2–4 days on site.
- After commissioning you get a handover of the controls and settings, plus the certificates.
Replacing an oil or LPG boiler with a heat pump in Darlington: questions
Where would the outdoor unit go on a Darlington house?
Usually at the side or rear, on a level base with space around it for airflow and servicing, away from bedroom windows where possible. The surveyor checks positions at your Darlington home.
Can you service a heat pump in Darlington that someone else installed?
Yes. We arrange servicing and repairs for most air source heat pumps in Darlington, whoever fitted them. Tell us the make and model when you book.
How long does installation take in Darlington?
Most installations take 2–4 days on site. Jobs with several radiator changes or new pipework take longer, and your quote for a Darlington home states the expected time.
Do I have to remove my oil tank?
Not always, but it should be emptied and made safe. A tank in good condition can be drained, cleaned and left in place, though most owners prefer to have it taken away to free up space. Old or damaged tanks are usually removed. Your quote says which option is included, and any remaining oil and sludge is disposed of properly.
Is a heat pump cheaper to run than oil?
It depends on oil prices, your home's insulation, the flow temperature and your electricity tariff, so there is no single answer. At the October to December 2026 price cap, a heat pump with a seasonal efficiency of 3.0 delivers heat for about 8.8p per kWh, and at 3.5 about 7.5p. Compare that with your oil cost per kWh of heat, allowing for your boiler's efficiency; the survey estimate gives a figure for your home.