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South London

Wandsworth Air Conditioning for Homes and Businesses

Wandsworth stretches from the glass towers at Nine Elms to the Edwardian grids of Southfields and Tooting, and we install, service and repair air conditioning for homes and businesses right across the borough.

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From Nine Elms Towers to Southfields Terraces: Where Wandsworth Homes Overheat

Wandsworth is the largest of the inner London boroughs and one of the most residential, so most of the cooling problems we see here are domestic. The typical house is a Victorian or Edwardian terrace that has been extended twice: up into the roof with a dormer and out at the back with a glazed kitchen. Those two additions are where heat builds up, and they are usually the first rooms people ask us to cool.

The riverside tells a different story. Nine Elms, Battersea Power Station and the stretch from Wandsworth Town to Putney Wharf have added thousands of apartments with floor-to-ceiling glass, many facing south or west across the Thames. Some came with comfort cooling and many did not, but nearly all are governed by building rules that decide where an outdoor unit may go. Further west, the post-war estates of Roehampton and the larger villas on Putney Hill and West Hill bring different constraints again.

Commercial life is spread out rather than concentrated in one centre. Putney High Street, the town centre around the Southside shopping centre, Balham's parades and Tooting's two covered markets all support restaurants, gyms, salons and shops, and Tooting, home to St George's Hospital, has a dense mix of clinics, dental practices and food businesses. We work across all of these areas, from single-room installations to planned maintenance on multi-unit systems.

Our services

Cooling and Reverse-Cycle Heating for Wandsworth Households and Businesses

A black gloss designer air conditioning unit in a living room, the kind of air conditioning we fit for homes in Wandsworth
A black gloss designer air conditioning unit in a living room. An example of the air conditioning we install for homes in Wandsworth.

For homes

The most common domestic request in the borough is to make a loft bedroom usable on summer nights, closely followed by the glazed kitchen extension that turns into a greenhouse by mid-afternoon. We size each room individually, typically between 2.0 and 3.5 kW per indoor unit depending on glazing and orientation, and recommend R32 inverter systems that also heat efficiently in spring and autumn. For riverside flats we start by reading the lease and building rules, and we service and repair existing systems of all common types.

Domestic air conditioning
A wall-mounted air conditioning unit in an office, the kind of commercial air conditioning we fit for businesses in Wandsworth
A wall-mounted air conditioning unit in an office. An example of the commercial air conditioning we install for businesses in Wandsworth.

For businesses

Commercial work here is mostly small and medium premises: restaurants and bars on Putney High Street and in Balham, food businesses and shops in and around Tooting's markets, clinics and dental practices near St George's, and offices and retail units in the new Battersea Power Station and Nine Elms buildings. We fit cassette and ducted systems for open floors, wall units for treatment rooms and dedicated cooling for comms cupboards, and offer planned maintenance so filters and coils are clean before the summer rush.

Commercial air conditioning
Air Conditioning Installation in Wandsworth: a split air conditioning unit above a living room fireplace

Air Conditioning Installation

Surveyed, heat-load sized and properly commissioned air conditioning for London homes and businesses, from a single wall unit to multi-room and ducted systems.

Learn more Air Conditioning Repairs in Wandsworth: a wall-mounted air conditioning unit during a service visit

Air Conditioning Repairs

Symptom-led fault finding for air conditioning that has stopped cooling, is leaking, icing up, tripping the electrics or showing an error code anywhere in London.

Learn more Air Conditioning Servicing in Wandsworth: an air conditioning unit display showing the set temperature and Wi-Fi

Air Conditioning Servicing

A single, thorough service visit covering filters, coils, drains, fans, electrics and refrigerant performance, with readings recorded for homes and businesses across London.

Learn more

Can Riverside Flats in Nine Elms and Battersea Take Their Own Air Conditioning?

Often yes, but the building decides how. Before choosing any equipment, establish three things: whether the flat already has a cooling coil or fan coil unit, what the lease and building rules say about external plant, and where a condenser could physically go. The answers vary block by block along the river, even within the same development.

Checking for Existing Comfort Cooling First

Many newer riverside apartments were handed over with a fan coil unit hidden in the hallway ceiling, fed from central plant. If yours has ceiling grilles and a wall controller that offers a cooling mode, the solution may be servicing, rebalancing or repairing what is already there rather than adding a new system. Poor performance in these flats is often caused by clogged filters, a failed condensate pump or a building-wide cooling schedule set by the management company.

Fan Coil Units Above the Entrance Hall

These are reached through an access hatch, usually in the hallway ceiling. Filters need regular cleaning, and the condensate tray and pump should be checked, because a blocked drain can leak through to the ceiling of the flat below.

Communal Energy Centres and Central Plant

Some large developments supply heating, and sometimes chilled water, from a central plant room. Where that is the case, the operator controls supply temperatures and run times, and any change has to go through them rather than an individual installer.

Balconies, Winter Gardens and Designated Plant Zones

Where owner-installed cooling is allowed, the condenser location is usually the deciding factor. Some buildings set aside a plant shelf or a defined corner of the balcony, while enclosed winter gardens are rarely suitable because the condenser needs free airflow to reject heat. Pipework then passes through a sleeved core hole agreed with the managing agent, and condensate is drained internally to a waste pipe or via a discreet pump. Wind loading on high balconies also affects how the unit is fixed.

Sizing for Floor-to-Ceiling Glass Facing the Thames

A south-west-facing living room with full-height glazing can need roughly twice the cooling capacity of a similar-sized room in a Victorian terrace. We calculate heat gain from glass area, orientation, solar control coatings or blinds, occupancy and appliances, rather than relying on floor area alone. Undersized units run flat out and still struggle in the late afternoon, while oversized ones short-cycle and leave rooms clammy. Inverter systems with a wide modulation range handle the swings best.

  • Note which way the main windows face
  • Check whether the glazing has a solar control coating
  • Tell us the hours the room is most used
  • Mention any home office equipment or large screens

Routing Pipework Through Extended Terraces in Southfields, Earlsfield and Tooting

The terraced streets of the southern half of the borough share a pattern: a narrow front, a closet wing at the back, a dormer on top and a kitchen extension filling the side return. That layout makes condenser placement easy but pipe routing to the top floor awkward, so we plan the route before we choose the units.

Getting From the Dormer Down to the Garden

The neatest route is usually internal: down through a built-in wardrobe or a boxed corner on the landing, then out through the rear wall at low level close to the condenser. Where that is not possible, a run in colour-matched trunking down the back of the dormer and closet wing is the fallback. Either way, the refrigerant pipe length and number of bends must stay within the limits for the chosen outdoor unit, or efficiency and reliability suffer.

Totterdown Fields and Tooting's Cottage Streets

The early London County Council cottage estate at Totterdown Fields has small two-storey houses with low eaves and modest rooms, and it is a conservation area. Single split systems of 2.0 to 2.5 kW are usually plenty for a bedroom here. Placing the condenser at the rear and running every pipe and cable away from the street keeps the original front elevations unchanged.

Low Ceilings and Small Bedrooms

Compact wall units with a slim profile, or a floor console beneath the window, suit rooms with little wall height above the window head. The louvres are set so that airflow does not blow directly across the bed.

Leaving the Street Frontage Untouched

Pipework, cable and condensate lines run to the rear, and nothing is fixed to the front wall. If any rear equipment would still be visible from a road or public space, check with the council before going ahead.

Glazed Kitchen Extensions and Roof Lights

Side-return and rear extensions with roof lights trap heat on still afternoons. A wall unit is often placed above the bifold doors, blowing back into the room, or a ceiling cassette is fitted where the flat roof void has enough depth. Running the same system in heating mode in winter also helps, because these extensions lose heat quickly through the glass and radiators sized for the original kitchen rarely keep up.

Local properties

Wandsworth Building Types and the Systems That Suit Each One

Extended Edwardian terraces in Southfields and Earlsfield

These streets are lined with two-storey Edwardian terraces, most now with a rear dormer. A two- or three-port multi-split usually works best: wall units in the loft room and main bedroom, a third above the kitchen extension doors, and one condenser on the extension's flat roof or low in the garden on anti-vibration feet.

Riverside apartments at Nine Elms and Wandsworth Town

Glass-fronted flats facing the Thames gain heat quickly from early afternoon. Where the building permits owner-installed cooling, compact units go in a designated plant zone or a balcony position set by the managing agent. Where a fan coil unit already exists in the ceiling, servicing that equipment is often the better answer.

Post-war estate flats in Roehampton

Flats and maisonettes on the Alton Estate and neighbouring estates are council-owned or leasehold, and some blocks are listed. External alterations normally need the landlord's approval and may need listed building consent, so we establish who owns the walls and what they will allow before any design work starts.

Villas and large houses on Putney Hill and West Hill

Bigger Victorian houses and later detached homes on the Putney slopes can justify a ducted unit in the loft feeding the top-floor bedrooms, or more than one multi-split. Pipe routes between three or four floors are long, so condenser positions are planned around the manufacturer's maximum run lengths and height differences.

Before you install

Consents, Neighbours and Parking to Settle Early in SW15, SW17 and SW18

This is general guidance only. Every building, lease and planning situation is different, so we’ll talk through yours at survey stage.

  1. 01The borough has many conservation areas, including large parts of Putney, streets around Wandsworth Common and the Totterdown Fields estate in Tooting. A condenser visible from the road may need planning permission, so it makes sense to check with the council's planning team before fixing a position.
  2. 02In riverside developments the managing agent's building rules usually specify where plant may go, which contractors may access the roof and how penetrations through the facade must be sealed. Ask for these rules before requesting quotes, because they shape the whole design.
  3. 03Gardens in Southfields, Earlsfield and Tooting are narrow and back directly onto neighbouring gardens. Mounting the condenser on anti-vibration feet, away from boundary walls and bedroom windows, keeps operating noise down on warm evenings when everyone has their windows open.
  4. 04Most residential streets sit within controlled parking zones. Arranging a visitor permit or bay suspension in advance avoids delays on installation day, particularly near Putney, Wandsworth Town and Tooting Broadway.
  5. 05Dormer lofts often leave little room for pipe routes. Agreeing during the survey whether pipework runs through a wardrobe, a boxed corner or the eaves void avoids exposed trunking across the rear of the house.
Pricing explained

Why Two Air Conditioning Quotes in Wandsworth Can Look So Different

Air conditioning prices are built from equipment, labour time, materials and access, and here the access element varies more than people expect. A ground-floor split in a Southfields garden and the same unit on a high Nine Elms balcony are very different jobs. When comparing quotes, check that each includes the same capacity, the same pipe length allowance, the electrical work and full commissioning.

Building Rules and Approved Access on Riverside Blocks

Some developments require works to be booked through the concierge, insist on protective coverings in lifts and corridors, or limit drilling to set hours. Risk assessments, method statements and approved roof access take time to prepare and agree, and that preparation forms part of the quote.

Pipe Length From Loft Room to Condenser

Each metre of refrigerant pipe beyond the length pre-charged in the outdoor unit adds materials, insulation and sometimes extra refrigerant. A loft room with the condenser at the far end of a long garden costs more than one with a flat roof directly outside the dormer window.

Number and Style of Indoor Units

A multi-split serving three rooms costs more than a single split but usually less than three separate systems, and it needs only one condenser. Wall-mounted units are the most economical; cassettes and ducted units need ceiling voids, extra labour and more making good.

Consumer Units in Unaltered Period Houses

A dedicated circuit from the consumer unit and an outdoor isolator are standard. Older boards in houses that have not been rewired may lack a spare way or modern RCD protection, which an electrician may need to address before the system can be connected.

Controlled Parking Zones and Carry Distances

Permits or bay suspensions, and the time spent carrying equipment from further down the road, are small but real costs. On busy streets near Tooting Broadway or Putney Bridge, a careful quote will allow for them rather than leaving them as surprises.

Step by step

How a Wandsworth Installation Runs From First Visit to Handover

  1. Survey and heat-load check

    We visit, measure each room, note glazing and orientation, and look at the loft, rear walls and garden or balcony for condenser positions. For riverside flats we ask to see the building rules at this stage, so the design fits them from the start.

  2. Design and consents

    You receive a written proposal with unit sizes, positions and pipe routes. Where a conservation area, a listed estate block or a managing agent is involved, it gives you what you need to seek approval before any installation date is booked.

  3. Installation day

    Core holes are drilled and sealed, brackets or anti-vibration feet fixed, pipework insulated and run, condensate drained and the electrical supply connected. Most single and twin-room jobs in terraced houses are finished within one or two days.

  4. Commissioning and aftercare

    The system is pressure-tested, evacuated, leak-checked and run in both cooling and heating modes. We explain the controls, then arrange annual servicing so filters, coils and drains stay clean and the system keeps its efficiency.

FAQs

What Putney, Tooting and Nine Elms Customers Usually Ask Us

Can a multi-split cool my dormer loft and kitchen extension in Southfields?

Yes, that is one of the most common layouts we install in this part of the borough. A two- or three-port outdoor unit can feed a wall unit in the loft room, one in the main bedroom and one above the extension doors, each with its own remote. The survey checks the pipe length from the dormer to the condenser, as that run is usually the limiting factor.

My Nine Elms flat already has ceiling vents but still feels warm. What should I check?

Look for a wall controller with a cooling mode and an access hatch in the hallway ceiling. If you have a fan coil unit, the problem is often a dirty filter, a faulty condensate pump or a central plant schedule set by the building operator. Speak to your managing agent first, then we can inspect and service the in-flat equipment where the building allows it.

Do I need planning permission for an outdoor unit in Putney?

Not always, but large parts of Putney are within conservation areas, and in those streets a condenser visible from the road may need permission. Rear positions out of public view are generally less of a concern. The council's planning team can confirm the position for your address, and leaseholders will also need the freeholder's written consent before work starts.

Is air conditioning possible in a Roehampton estate flat?

It can be, but consent comes first. Many flats on the Roehampton estates are council-owned or leasehold, and some blocks are listed, so external alterations may need listed building consent as well as landlord approval. Once you know what is permitted, a compact split with an internal condensate route is usually the most discreet option.

How loud will the outdoor unit be in a narrow Tooting garden?

A modern inverter condenser for a single room typically runs at around 45 to 50 dB(A) measured at one metre, and quieter at low load. In narrow gardens, siting matters as much as the model: keep the unit away from boundary walls that reflect sound, avoid positions beneath neighbours' bedroom windows and mount it on rubber anti-vibration feet.

Can the same system heat my glazed extension in winter?

Yes. Reverse-cycle split systems work as air-to-air heat pumps, and an R32 inverter unit can heat a glazed extension efficiently on all but the coldest days. Many households end up using the extension unit for heating in more months of the year than for cooling, taking pressure off radiators that struggle in large glazed rooms.

Neighbouring Boroughs Along the Wandle and the Thames

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Tell us about your home or business in Wandsworth and what you’d like to achieve, whether that’s cooling, heating or both. We’ll come back with advice and next steps.

  • Survey-led advice: recommendations based on your rooms, layout and how you use the space.
  • Clear written quotation: what’s included, the equipment proposed and the next steps.
  • No obligation: ask questions and take your time to decide.
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