Oxfordshire · Heat pump installation
Air Source Heat Pumps in St John Street area
Air source heat pumps across St John Street area and nearby, from the first look to the final check with the price fixed before work begins.
- Questions about listed buildings or conservation areas
- Moving away from fossil-fuel heating
- A boiler that’s getting old
Questions from St John Street area
Will a heat pump in St John Street area need planning permission?
It depends on the property. The Central (City and University) Conservation Area takes in the middle of St John Street area. 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 Oxford City council, which is usually the planning authority for St John Street area.
Is St John Street area within the area you cover?
Yes, smaller places are covered as well as towns. A few photos and the postcode are enough to get things started.
Do you have a 24/7 line?
Yes, day and night. Call the emergency line and tell us the make, the symptoms and any error code, and we’ll talk you through the next steps.
Will skipping a service affect the warranty?
That depends on the brand. If servicing is in the terms, missing one could affect a claim and we will tell you what your brand asks for.
Do you look at the job first?
Yes, every time. We diagnose before we treat: the survey tells us what the job needs and how to do it, and the quote is based on that.
Can I do the refrigerant work myself?
Not the refrigerant work. Under the F-gas rules, it must be done by qualified engineers from a certified company, and a new electrical circuit is notifiable building work unless a registered competent person does it.
What does F-Gas certified mean?
The law says any company working on equipment containing F gas has to be certified, and the engineers need their own qualifications. It means the refrigerant in your system is handled legally.
Air source heat pumps in St John Street area, done properly
A £2,500 grant is available for some air-to-air heat pumps, with conditions. 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. Typical jobs include working out whether radiators need upsizing and plans to switch to electric heating with a heat pump, across air-to-air heat pumps, radiator systems and air-to-water heat pumps.
Older homes around St John Street area can be draughty or have solid walls, so a proper heat loss calculation matters. Sometimes insulation first is the better investment.
Refrigerant work is written up in the F-Gas records: the work carried out, the refrigerant involved and the quantities. Keep the records with the manual and the warranty documents, as a manufacturer or a future engineer may ask to see them.
- Place
- St John Street area (OX1, OX2)
- Region
- Oxfordshire
- Credentials
- NICEIC and F-Gas, MCS
- Quote
- A fixed price before work begins
- Prices
- £8,000–£16,000 before the grant, 0% VAT on homes
- Phone
- 07833 053749
- Page updated
- 30 October 2026
What affects the cost of air source heat pumps
We quote each job individually. These are the things that affect it:
- The size of the job
- How easy the units are to reach
- The condition of any existing system
What you pay depends on the type of system and how many units are involved, the access and what the work involves. We give you a fixed price before work begins, so you know where you stand.
Asking for a quote
What to send for a quote:
- A few pictures of the room and the wall the unit is on, or will go on
- The rating plate or label on any existing unit
- A photo of the consumer unit with the cover closed
Every quote shows the VAT clearly, and the rate that applies to your job is stated. VAT can differ between homes and businesses and between kinds of work, so we confirm it in writing rather than guess. To get one, phone 07833 053749 or use the quote form.
When it’s something else
We’d rather tell you now than sell you work that will not help, so here are the limits:
- Disconnecting or servicing a gas boiler
- Promising eligibility for the Boiler Upgrade Scheme
- Tax advice on your own circumstances
Not sure which it is? You can call us on 07833 053749, or email if that’s easier and we’ll tell you honestly before booking.
Where we work
- Air-to-water heat pumps
- Underfloor heating
- Homes heated by oil, LPG or gas
- Hot water cylinders
- Air-to-air heat pumps
- Radiator systems
Nearby places to St John Street area
Also in St John Street area
How the visit works
Wherever the system can be run before we leave, we run it and check it in operation. Then we show you what we’ve done and answer any questions, and anything that needs a follow-up is pointed out there and then. The visit takes a few days on site, depending on the cylinder, the radiators and the pipework involved. We load the van from the survey notes so the work in St John Street area can be done in one go where possible.
- 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.
- 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.
- The job ends with commissioning, the MCS certificate and a walk through the controls.
Before we arrive
- Let us know if the building has a permit or sign-in process
- Let us know where the consumer unit is
- Give us access to the outside wall, roof or yard where the outdoor unit sits
How to get a quote
To get a fixed-price quote, phone 07833 053749 or email us and tell us about the property and what you need. A few pictures make it quicker. You will hear back from us the same working day.
Related advice
Safe owner checks
Before you call us about a fault, a few checks can save a visit: check the mode, the set temperature, the remote’s batteries and the breaker. If the breaker trips a second time, leave it off and give us a ring on 07833 053749.
Keep a note of anything odd: an error code, a new noise, a drip, a smell or a change in how well the system heats or cools. It helps us diagnose quickly, and a photo or a short video of the display is even better.
What a heat pump looks like in St John Street area
The Valuation Office Agency’s council tax figures put about 42% of homes across St John Street area and its surrounding area before 1919, and about 48% of households live in flats, according to the last census (2021). Older homes can lose heat faster, so a room-by-room heat loss calculation, and sometimes insulation or larger radiators, comes before sizing a heat pump. In flats, space for an outdoor unit and a cylinder can be limited, and the lease and freeholder come into it, so air-to-air is sometimes the better fit.
Holywell Manor, roughly 0.6 miles east, is a reminder to check your home’s listing status: permitted development doesn’t cover listed buildings. For a home near Oxford station, the survey looks at whether an air-to-water or air-to-air heat pump suits better.
St John Street area is about 1 mile west of Oxford, in Oxfordshire. Anywhere in OX1, we cover air source heat pumps. We cover 443 places across Oxfordshire, large and small. There’s also a page for Guildford, roughly 46 miles from St John Street area.
You’ll find St John Street area on the A420 and A4144, so it’s easy for us to get to. We work across OX1 and OX2 and the streets around it. Other places close to St John Street area include St. Ebbes (1 mile south), Jericho (1 mile north-west), Osney (1 mile south-west), Walton Manor (1 mile north) and Norham Manor (1 mile north). We also work in nearby towns such as Didcot (10 miles south), Bicester (11 miles north-east), Abingdon-on-Thames (6 miles south) and Witney (10 miles west).
Landmarks near St John Street area
Typical jobs here are in properties near St Barnabas' Church of England Aided Primary School, Oxford University Parks and The Eagle and Child pub, among other places. Also close by are Angus Library and Archive (less than half a mile north-east) and Oxford Academy (1.3 miles north). St John Street area has its own railway station: Oxford station. Nearby you will also find Oxford University Press Museum (under half a mile north-west) and Oxford Castle (less than half a mile south). For a walk, there’s Hook Meadow and The Trap Grounds and Headington Hill.
From one of our customers
“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