Air conditioning in Westminster
We install, service and repair air conditioning across the City of Westminster, from Mayfair and Soho to Pimlico, Marylebone, Maida Vale and St John's Wood. Most homes here are flats, much of the city is protected and the council looks hard at plant noise, so the survey comes first.
- conservation areas (council figure)
- 56
- listed buildings (council figure)
- 11,000+
- households live in flats (Census 2021)
- 9 in 10
- notice for a bay suspension
- 10 working days
What makes Westminster different
Westminster City Council lists 56 conservation areas, and in a 2023 letter to the London Assembly it put the number of listed buildings at more than 11,000. The city also holds a World Heritage Site: the Palace of Westminster and Westminster Abbey, including St Margaret's Church.
In the 2021 Census, nearly 9 in 10 Westminster households lived in a flat, either in a purpose-built block or in a converted house. So the questions are nearly always where the outdoor unit can go, who has to agree, and how quiet it must be. We answer those at the survey.
Westminster buildings and how we approach them
| Type of building | Typical areas | How we approach it |
|---|---|---|
| Mansion blocks | Maida Vale, Marylebone, St John's Wood and Victoria | Freeholder or managing agent consent first. Outdoor units usually go on a rear flat roof, in a lightwell or on a balcony. |
| Stucco terraces | Pimlico, Belgravia and Bayswater | Often listed and nearly always in a conservation area. We look at the rear, at ground level or on a flat roof, often inside an enclosure. |
| Georgian townhouses | Mayfair, Marylebone, Soho and St James's | Many are listed and now used as offices or flats. Internal pipe routes, with one discreet outdoor unit serving several rooms. |
| Shops, restaurants and offices | The West End, Covent Garden and Victoria | A planning application is the usual route. Units go in rear yards, lightwells or on roofs, with acoustic enclosures where needed. |
What Westminster looks at in a planning application
The council decides applications against the City Plan 2019 to 2040. Policy 33 asks development to prevent harmful noise and vibration, including noise from plant. The council's Environmental SPD sets the noise thresholds plant must meet at neighbouring windows. Policy 38 aims to reduce the need for plant, and officers treat natural ventilation as the starting point.
So an application for an outdoor unit needs an acoustic report. Recent Westminster conditions require plant noise, measured 1 m outside the nearest home's window, to stay below the quietest background level, typically by 5 or 10 dB, with a bigger margin if the sound is tonal or intermittent. We choose the model and position with that in mind and fit anti-vibration mounts.
Looks count as much as noise. On Lupus Street in the Pimlico Conservation Area, the council refused two wall-mounted units in 2022 for cluttering the rear of the building and sitting within 1 m of neighbouring homes. In 2023 officers backed units in an enclosure at courtyard level instead.
Flats and mansion blocks
National permitted development rules allow only one heat pump per block of flats, with an outdoor unit no bigger than 0.6 m³. Many Westminster blocks already have outdoor units, so a new one in those blocks needs planning permission. If in doubt, ask the council.
Your lease will almost certainly need the freeholder's consent too. We give the managing agent a drawing, the unit's size and its sound data, and work to the building's rules on lifts and hours.
Parking, the Congestion Charge and working hours
Westminster is divided into controlled parking zones A to G. When the van has to stay outside, we ask the council to suspend a bay. Westminster needs 10 working days' notice. In zones A, C and D a bay costs £51 for the first day and £55 a day for days two to five. Zones B, E, F and G cost a little more. If your job needs a suspension, the fee is on your quote.
Mayfair, Soho, St James's, Covent Garden and Westminster itself are inside the Congestion Charge zone. Bayswater, Paddington, Maida Vale and St John's Wood, west of Edgware Road and north of Marylebone Road, are outside it. The ULEZ covers all of London.
Westminster's standard hours for noisy building work are 8am to 6pm on weekdays and 8am to 1pm on Saturdays, with none on Sundays or bank holidays. We keep drilling inside those hours, and inside any shorter hours your building sets.
Air conditioning for Westminster businesses
We fit and look after systems in offices, shops, restaurants, salons, clinics and hotels, in business hours. Business premises follow different planning rules from homes, and an outdoor unit for a shop, restaurant or office here usually needs a planning application. We provide drawings, sound data and siting, and also service and repair systems another company fitted.
Prices in Westminster
Our standard London prices. Business prices are plus VAT. Planning drawings, acoustic reports, enclosures and long internal pipe runs are quoted after the survey.
- from£1,850inc. VAT
A bedroom or study
2.5 kW wall unit, 5 m pipe, fitted in a day
- from£3,650inc. VAT
Two rooms, one outdoor unit
Multi-split
- from£5,100inc. VAT
Three rooms
Multi-split
- from£4,950inc. VAT
Ducted, per zone
Hidden in the ceiling, survey needed
- from£1,795+ VAT
Commercial wall unit
Fitted in business hours
- from£2,750+ VAT
Ceiling cassette
In a suitable suspended ceiling
- from£119inc. VAT
An annual service
Keeps the manufacturer warranty valid
Neighbourhoods we cover
We work across the whole city, including:
- Mayfair, St James's and Piccadilly (W1, SW1)
- Soho, Covent Garden and the Strand (W1, WC2)
- Marylebone, Fitzrovia and Lisson Grove (W1, NW1, NW8)
- Belgravia, Pimlico, Victoria and Millbank (SW1)
- Westminster and Whitehall (SW1)
- Bayswater, Paddington and Little Venice (W2, W9)
- Maida Vale, Westbourne and Queen's Park (W9, W10)
- St John's Wood (NW8)
Westminster questions
Do I need planning permission for air conditioning in Westminster?
Often, yes. Listed buildings always need permission and usually listed building consent. Flats, business premises and any unit on a wall or roof facing a road in a conservation area need permission too. An unlisted house may not, if the unit heats as well as cools and meets every national permitted development rule. If you're unsure, ask Westminster City Council before work starts.
Can I have air conditioning in a listed building in Westminster?
Yes, with planning permission and listed building consent. We design around the building, with internal pipe routes and an outdoor unit out of sight, and give you the drawings and sound data for the application.
My mansion block already has outdoor units. Can I add one?
Probably, but it will need planning permission. Permitted development allows only one heat pump per block of flats, so a block that already has one needs an application for the next. You'll also need the freeholder's consent under your lease.
Do you fit air conditioning in Westminster restaurants and shops?
Yes. We fit wall units and ceiling cassettes and service existing systems. Commercial wall units start from £1,795 plus VAT and cassettes from £2,750 plus VAT. The outdoor unit usually needs planning permission, so we start with siting and sound data.
Will parking be a problem at my address?
Westminster is divided into controlled parking zones, so parking is paid or by permit. If the van needs to stay close, we book a bay suspension with 10 working days' notice, and the council's fee is shown on your quote before you agree to it.