Greater London · Heat pump installation
Coldblow air source heat pumps
We cover Coldblow for air source heat pumps. Diagnosis first, a fixed price and proper paperwork when we finish.
- Planning and permitted development questions
- Questions about the Boiler Upgrade Scheme
- Comparing heat pump types
Common problems we fix in Coldblow
An ageing boiler is often the moment people start thinking about a heat pump. Planning the change before the boiler fails gives you time to survey, design and apply for any grant instead of making a rushed decision when the heating stops.
Common reasons people call us are:
- Choosing between air-to-water and air-to-air
- Questions about where the outdoor unit can go
- Plans to switch to electric heating with a heat pump
With Hall Place and Gardens about 0.7 miles north, it’s worth asking whether your own home is listed before planning a heat pump.
What to look for in a quote
- What happens if the job turns out to be different on the day
- Whether the price is fixed or an estimate
- Whether testing, commissioning and paperwork are included
Air source heat pumps in Coldblow
Air source heat pumps collect heat from outdoor air and bring it inside with electricity running the compressor and fans. It works on the same principle as air conditioning, run the other way and the Energy Saving Trust notes that air-to-air heat pumps are sometimes referred to as air conditioning. We are often asked to deal with deciding on the outdoor unit position and an oil, LPG or gas boiler near the end of its life, on homes heated by oil, LPG or gas, underfloor heating and radiator systems.
A terrace in Coldblow shares walls with its neighbours, which helps keep heat in, provided the outdoor unit can sit somewhere that passes the MCS noise check.
Warranty periods vary by brand and by product. For example, Daikin’s standard warranty on split air conditioning is 2 years, and its longer extensions apply to its air-to-water units only. For any other brand, we explain the manufacturer’s terms on your quote.
- Place
- Coldblow (DA5)
- Region
- Greater London
- Prices
- £8,000–£16,000 before the grant, 0% VAT on homes
- Quote
- A fixed price before we start
- Approvals
- F-Gas certified company, NICEIC approved, MCS
- Call
- 07833 053749
- Page updated
- 30 October 2026
Nearby places to Coldblow
What else we do in Coldblow
Looking after it afterwards
Aftercare is straightforward, and it helps at the next service:
- Leave indoor units unobstructed
- Clear leaves and debris from the outdoor unit
- Read the manufacturer’s warranty terms for your brand
Now and then in cold weather, the outdoor unit defrosts itself. It may give off steam or sound different for a few minutes and it’s part of how the system works.
A well-insulated home helps a heat pump because it reduces the heat the system needs to supply.
Air source heat pumps around Coldblow
About 44% of homes in the Coldblow area date from 1945 to 1972, according to Valuation Office Agency council tax records, and about 67% of households live in detached or semi-detached houses, according to the 2021 Census. Homes of that age often have cavity walls that may or may not be insulated, which the survey checks. Houses normally have space for an outdoor unit and a hot water cylinder. London homes can be short of space for an outdoor unit and cylinder, which affects the choice of heat pump.
Live in one of the older houses around Church of St Mary the Virgin? Expect the survey to look closely at heat loss and at the building’s planning status.
Coldblow is about 3 miles east of Sidcup, in Greater London. Coldblow gets the same approach as every job we take on: a look at the job first, a fixed-price quote and written records at the end. Across Greater London, we cover 764 places, and Coldblow is one of them. We also work in Bromley, around 7 miles away.
The closest recent job we can point to from Coldblow was on Station Road, Orpington (BR6), about 5 miles south-west: installing three Daikin cassette units in the main office area and a wall-mounted unit in the client meeting room.
Every address in DA5 is covered, from busy streets to back roads. St Mary's Road, Dartford Road and Wansunt Road and the roads off them are all inside our area. Close to Coldblow, our area also takes in Joyden's Wood (1 mile south-east), Bowmans (1 mile east), North Cray (1 mile south-west), Crayford (1 mile north-east) and Wilmington (1 mile south-east). Further out, we also cover London (12 miles west), City of Westminster (15 miles west), Marylebone (14 miles north-west) and St Pancras (14 miles north-west).
Around Coldblow
Typical jobs here are in properties near The Old Wick pub, St Columba's Catholic Boys' School and Braeburn Park, among other places. For rail, the closest station is Bexley station, roughly 0.6 miles west of the centre. Nearby you’ll also find Stone Castle (5 miles east) and Bexley Museum (0.7 miles north). Green spaces nearby include Wansunt Pit and Summer Hill.
How the visit works
There’s very little for you to do on the day. Someone needs to let us in and show us the units, or where they’re going, and we take it from there. Before we leave, the area is tidied and we explain what we have done. Some blocks in Coldblow need contractor details in advance, so tell us what your building needs.
- First we find out about the property, the heating you have now and what you’re hoping for.
- The survey measures heat loss room by room and looks at radiators, hot water and the best spot for the outdoor unit.
- The price comes back fixed and in writing, with the grant and VAT shown line by line.
- Installation covers the outdoor unit, the indoor connections and the controls.
- The system is commissioned and registered under MCS, and we show you how to use it.
Before we arrive
- Make sure someone can let us in at the agreed time
- Let us know where the consumer unit is
- Let us know if the building has a permit or sign-in process
How to get a quote
Our prices page gives typical ranges, but your quote is based on your job, because no two buildings, rooms or systems are the same. After a look at the job, by pictures or a survey, the price is fixed. To get going, call 07833 053749 or email us.
Related advice
Common questions in Coldblow
Can I get the Boiler Upgrade Scheme grant in Coldblow?
Yes, the scheme covers homes in England, including Coldblow, 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. We hold MCS certification, so the application is ours to make for you.
Do I need permission to put air conditioning in my flat in Coldblow?
Often, yes, but the lease and the freeholder usually have a say. Permitted development rules for flats are tighter than for houses, so we check the outdoor unit position and give you the details to send to the freeholder or managing agent.
Which type of heat pump is right for my home?
Air-to-water replaces the boiler for heating and hot water, while air-to-air heats and cools rooms. The survey helps decide. We install both types.
How quickly will you reply?
The same working day. After that, we agree a survey, diagnosis or installation date that suits you, and you get a fixed price before any work goes ahead.
Do you work in Coldblow?
Yes. We work in Coldblow and across Greater London, as part of our area across London and the South East. To book, phone 07833 053749, or email if that’s easier.
Will skipping a service affect the warranty?
Each manufacturer decides. If servicing is in the terms, missing one could affect a claim and we’ll tell you what your brand asks for.
Do you have a 24/7 line?
Yes, any time. If something urgent happens, like water coming from a unit or a critical room overheating, call our 24/7 line and we will tell you what to do first.
What affects the quote in Coldblow
Jobs vary more than people expect. What affects the quote:
- How many units are involved
- What we find on the survey or diagnosis
- The type of system, from a single split to a larger system
What you pay depends on the type of system and how many units are involved, how easy the units are to reach and what the work involves. You get a fixed price before work begins, so there are no surprises.
What we need to know
What to send for a quote:
- The rating plate or label on any existing unit
- The postcode and whether it’s a home, flat or business
- Your installation or service records
Need a price for air source heat pumps? Please phone 07833 053749 or email us with a few details about the property. We will talk you through the options and give you a fixed-price quote before you commit to anything.
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