Greater London · Heat pump installation
Heat pump installers in Westminster
MCS certified installation of air source heat pumps for heating and hot water, with the boiler upgrade scheme grant applied for, in Westminster and nearby. Ask us for a fixed-price quote, and we’ll reply the same working day.
- No space for a hot water cylinder
- Not knowing whether a grant applies
- Deciding on the outdoor unit position
What affects the cost of air source heat pumps
The diagnosis comes before the price. The main factors are:
- One-off work versus a regular service cycle
- Which make and model is being fitted or worked on
- Whether it’s a simple split or a larger system
The price reflects the work, not guesswork. That’s why every job is looked at first, and the price is agreed before work begins.
Helping us quote
To speed up the quote, send us:
- The address and the type of property
- Photos showing the indoor unit and the space around it
- The rating plate or label on any existing unit
Quotes do not take long. Call or email with a few details and we’ll come back to you the same working day. Where a survey is needed, we arrange a time that suits you.
How we handle air source heat pumps in Westminster
As an MCS certified installer, we fit air source heat pumps for homes in Westminster and the rest of Greater London. Air-to-water systems feed your radiators or underfloor heating and hot water cylinder, while air-to-air systems heat rooms directly through indoor units and can cool them too. We help you work out which suits your home. If the problem is deciding on the outdoor unit position and ageing boilers that will need replacing, we can help.
In a London area like Westminster, many homes are flats or terraces with little outside space, and that decides which kind of heat pump works. Air-to-water needs room for the outdoor unit and normally a cylinder, while air-to-air units take less room.
Some warranty terms depend on the system being serviced regularly by a qualified engineer. If that applies to your system, booking the service on time keeps the record straight and each visit is recorded.
- Location
- Westminster (SW1P, W1J, SW1V)
- Wider area
- Greater London
- Price
- A fixed price before we start
- Accreditations
- NICEIC approved, F-Gas certified, MCS
- Guide price
- £8,000–£16,000 before the grant, 0% VAT on homes
- Replies
- We reply the same working day
- Call
- 07833 053749
- Checked
- 30 October 2026
Towns and villages near Westminster
More services for Westminster
How it works
Refrigerant work is done by qualified engineers working for an F-Gas certified company, and electrical work is done by us as NICEIC approved contractors. On the day, both are in the same hands. The work 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. A note on parking and access helps us plan a visit to Westminster.
- It starts with a conversation about the home, the existing heating and your plans.
- We survey the home room by room for heat loss, and check the emitters, hot water and outdoor unit position.
- The price comes back fixed and in writing, with the grant and VAT shown line by line.
- The outdoor unit, the indoor equipment and the controls are installed and connected.
- The system is commissioned and registered under MCS, and we show you how to use it.
Preparing for the visit
- Mention any roof access, ladders or high-level work
- Move furniture away from the wall where we will be working
- Tell us about parking and loading
How to get a quote
To help us quote: where the property is and what kind of building it is, a few photos, the make and model of any existing system and any symptoms, from error codes to drips. Then ring us on 07833 053749 or email us.
Related advice
What you can do yourself, and what needs us
Never try to top up, release or handle refrigerant yourself. The law requires anyone working on equipment containing F gas to hold the right qualifications, and the company to be certified, and refrigerant lines can cause cold burns. If you suspect a leak, switch the system off and call us.
For air conditioning, cleaning the indoor unit’s filters is the main job owners can do where the manufacturer’s manual explains how. They come out, get a gentle clean and go back only when they’re dry. On a heat pump, the equivalent is keeping the outdoor unit clear and checking the controls.
Questions from Westminster
Is the heat pump grant available in Westminster?
Yes, if the home and the heat pump meet the scheme’s rules: Westminster is in England, where it applies. The amount depends on the type of heat pump, and the survey confirms which applies. You do not apply yourself: the MCS certified installer does, which is us.
Can you fit air conditioning in a London flat in Westminster?
Usually, yes, though leaseholders normally need the freeholder’s agreement. We look at where the outdoor unit could go, such as a balcony, flat roof or rear wall, and write it up for the freeholder or agent.
Do you provide F-Gas records?
Yes, always. A new system comes with commissioning details, F-Gas records and the manufacturer’s warranty information, while repairs and services get a written note of what was found and done.
Can you come out in an emergency?
Yes, 24/7. Call the emergency line and tell us the make, the symptoms and any error code, and we’ll talk you through the next steps.
Whose job is it to check the system for leaks?
Responsibility is shared between the operator, typically 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.
Do you work on commercial properties?
Yes. We work for homeowners, landlords, letting and managing agents, and businesses of every size in Westminster and across Greater London. Let us know who the records should go to.
Do you cover Westminster?
Yes. Our area takes in London and the counties of the South East, and that includes Westminster.
Homes in Westminster and heat pumps
About 47% of homes in and around Westminster were built before 1919, according to VOA council tax data, and the 2021 Census found about 94% of households live in flats. Period properties can still suit a heat pump, but the design has to start from accurate heat loss figures. For flats, the first questions are where an outdoor unit could go, whether a cylinder fits and what the lease allows. 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 Christ Church? Expect the survey to look closely at heat loss and at the building’s planning status. Clarence House lies about 0.4 miles north-west. Owners of listed homes need consent before a heat pump is fitted, so it’s one of our first questions.
Westminster is about 1 mile south-east of City of Westminster, in Greater London. Homes and businesses alike in Westminster, 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 Greater London and you reach 764, with Westminster on the list.
The closest recent job we can point to from Westminster was on East Hill, Wandsworth (SW18), about 4 miles south-west: installing a Daikin wall-mounted unit in the open-plan living area.
Eaton Lane, Wilton Road and Castle Lane and the roads off them are all inside our area. The A4 and A202 serve Westminster, which keeps journeys to surveys and visits simple. We also cover Millbank (1 mile north), Victoria (1 mile south-west), Pimlico (1 mile south), Vauxhall (1 mile south-east) and Lambeth (1 mile south-east). We also work in nearby towns such as Kensington (3 miles west), Shoreditch (3 miles north-east), Walthamstow (8 miles north-east) and Hoxton (3 miles north-east).
Landmarks near Westminster
Locally, jobs take us to houses, flats and workplaces close to St Matthew's School, St James's Park and Blewcoat School. Nearby too are London Library (0.6 miles north) and Grafton Arms (under half a mile south). For rail, the closest station is London Victoria station, about 0.6 miles south-west. Nearby you’ll also find Westminster Hospital (less than half a mile east) and The Crime Museum (less than half a mile south). Not far away are Barnsbury Wood and St. James's Park Lake.
How the job changes from property to property
VAT on heat pumps
HMRC says most air conditioning units are air source heat pumps, but each case depends on the facts, so we confirm the VAT on your quote.
Air-to-air heat pumps
Since 2025, air-to-air heat pumps can also be permitted development in England, subject to the conditions. A unit used solely for cooling isn’t covered and need a check with the council.
From one of our customers
“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