Air Conditioning in Billingshurst and the Low Weald
Air conditioning for Billingshurst houses, cottages and businesses, from timber framed buildings on the High Street to modern estates, fitted and serviced by our engineers from Horsham, about six miles away.
A Low Weald Village Built Along Stane Street
Billingshurst is a large village in the Low Weald, laid out along Stane Street, the Roman road from London to Chichester that is now the A29. Its historic centre grew at the staggered crossroads where the east to west route across the Weald, today the A272, meets Stane Street. Through the middle, Stane Street becomes the High Street, with West Street and East Street running off it.
The buildings follow that history. Timber framed houses of Wealden oak line the High Street and the Causeway, many of them refaced in brick, render or tile hanging. Villas and cottages went up along Station Road after a station opened outside the village in 1859, and the estates built after the war spread west of the historic centre and between East Street and Station Road. For air conditioning, that range means a different answer on almost every street about where the outdoor unit can stand and the path the pipes take indoors.
JAC Air Conditioning Ltd looks after Billingshurst from its Sussex office in Horsham. We are a family run company established in 2010, with REFCOM F-Gas certificate REF1019419 and 3 Diamond Dealer status from Mitsubishi Heavy Industries, and we fit and maintain systems in houses, bungalows, shops, pubs and industrial units across the RH14 district and the villages around it.

Billingshurst Homes and Where the Units Go
From medieval timber frames to estates of the 2000s, the age of a Billingshurst house says a good deal about where a unit can go and how its pipes will run.
Timber Frames in the Historic Core
Along the High Street, the Causeway and around St Mary's Church stand timber framed buildings of Wealden oak, often refaced in brick, render or tile hanging, where tall roofs and oddly placed chimneys give away the older frame. Many are listed and within the Billingshurst Conservation Area, so a unit or pipework on the street side may need consent. On the High Street, buildings tend to sit on the back edge of the pavement, so plant normally goes in a rear yard, and we survey for the hidden frame before choosing a pipe route.
Painted Brick on East Street
South of the commercial core on the High Street and along East Street are painted brick and rendered houses under plain tile or low pitched slate roofs, some standing end on to the street. A new pipe run or length of trunking shows clearly on a painted or rendered front, so we take pipework to the side or rear. These streets are in the conservation area, where the appraisal asks for modern equipment to stay out of public view.
Railway Era Villas and Cottages
Station Road, Lower Station Road, West Street, Chestnut Road and Daux Road have villas and cottages of red or multi stock local brick with front gables, painted bargeboards, bays and porches, many built close to the road after the railway came. Their solid brick walls take a cored hole and a sleeve for the pipework. With little room at the front, the outdoor unit normally goes in the rear garden or on a side or rear wall.
Estates and Chalet Bungalows
Daux Avenue has chalet bungalows of the 1930s, Coombe Hill, Frenches Mead and Groomsland Drive date from the 1940s, Silver Lane and Rosehill from the 1960s, and Forge Way and Belinus Drive from the 1970s. Coombe Hill and Frenches Mead are mostly brick houses with large gardens, where an outdoor unit is easy to keep out of sight, and on every house we confirm how the walls are built before the core hole is drilled. In a chalet bungalow the rooms in the roof have sloping ceilings and limited eaves space, so we plan the route to the indoor unit with care.
Modern Estates and Courtyards
Roman Way and Lakers Meadow date from the 1990s, Penfold Grange from 2001 to 2002 after the bypass, and Holders Close from 2005 to 2006, all picking up local features such as tile hung elevations, painted brick and pitched front gables. Well insulated modern houses suit a wall mounted split system. Smaller gardens and courtyard layouts can leave an outdoor unit facing a neighbour, so we look closely at noise and siting, and the deeds on a newer estate may carry covenants about fixing to a front wall.
Garden Room Cooler
Set the size of the room and how much of it is glass, or start from one of the typical rooms. The guide gives a band of cooling, the nearest common unit size and where the two units would go.
Drag the square handles on the room, or use the sliders below.
2 m6 m
2 m5 m
Glazing
Or Start From
Hover over or focus a starting point or a glazing choice to preview it on the drawing.
Indicative Band
1.5 to 1.8 kW
12 square metres of floor at the rule of thumb below.
Nearest Common Size
2.0 kW
The smallest common size covers the band.
Indoor Unit
High on the solid back wall, facing the glass, so the air reaches the doors where the sun comes in.
Outdoor Unit
On a level base beside or behind the room, with a short pipe through the back or side wall.
Common Unit Sizes in kW
A room of 12 square metres with this glazing comes to about 1.5 to 1.8 kW, so 2.0 kW is the nearest common size. It is a guide only, and the survey decides.
The Rule of Thumb
The band is the floor area multiplied by a rule of thumb for cooling a well insulated garden room, in watts per square metre of floor. More glass lets in more sun, so the figure rises with the glazing:
- One Window100 to 125 W
- A Glazed Front125 to 150 W
- Glazed on Two Sides150 to 175 W
It is a starting point only. The insulation, the way the glass faces, any shade from trees and how the room is used all change the answer, and the survey sizes the unit to the room itself.
Planning in Horsham District
Horsham District Council’s guidance says whether permitted development rights apply depends on what is proposed and on local restrictions, such as a listed house, a conservation area or rights that have been removed. In a conservation area planning permission may be needed for an outbuilding, and listing can sometimes take in detached outbuildings too.
The council advises asking its Development Management team whether work needs planning permission. Planning may apply to a unit on a garden room as well, so we check first, before anything is fixed to the wall.
What We Fit in Billingshurst, and for Whom
A wall mounted split system suits most Billingshurst houses: the indoor unit is fixed near the ceiling and a single narrow hole carries its pipes out to the condensing unit. If two or more bedrooms need cooling, a multi split serves them all from a single outdoor unit. On a cottage with a small rear yard or a courtyard house, that leaves one position to agree rather than several.
Several of the estates built between the 1940s and the 1970s, Coombe Hill and Frenches Mead among them, have large gardens with room for a garden room or home office. A small wall unit will keep a garden room comfortable through the summer and warm in winter, with its outdoor unit set against the back or side of the building. If the room is still at the planning stage, Horsham District Council advises contacting its Development Management team to establish whether the work needs planning permission, and in a conservation area the council says permission may be required to construct an outbuilding.
We start each installation by surveying free of charge, then send a written price naming the indoor and outdoor units. Jay or Oscar sizes the system to the room, and when fitting day comes the joints are brazed, the circuit is proved by a pressure test and evacuated, and only then is the system commissioned and registered for its manufacturer warranty. You can read how each stage works on our air conditioning installation page.


Planning, Listed Buildings and the Conservation Area
The Billingshurst Conservation Area was first designated in 1973, and Horsham District Council's Appraisal and Management Plan for it is dated January 2018. The appraisal splits the area into five character areas: the historic core mound, the historic commercial core, the 18th century to 1940s expansion, post war infill and the fringe farmsteads. St Mary's Parish Church in East Street, largely 13th century with Norman fabric and a stone broach spire seen from many points around the village, is Grade I listed.
The appraisal asks for modern equipment on or around buildings, for example large aerials, satellite dishes and microgenerators, to be kept out of public view and off prominent positions. An outdoor air conditioning unit is the same sort of equipment, so in the conservation area it may need permission on a street elevation, and on a listed building it may need listed building consent. We check before we drill, preferring to site a unit at the rear rather than ask you to apply for something that can be avoided.
Some places nearby carry their own designations. Adversane, the hamlet on Stane Street to the south, has a conservation area designated in 1976, and its appraisal of November 2025 notes many listed buildings little altered since they were built. The council also lists conservation areas at Itchingfield, Shipley, West Chiltington, West Chiltington Lanes and Pulborough. Wisborough Green and Kirdford fall within Chichester District rather than Horsham District, so planning questions there go to Chichester District Council.
Commercial Air Conditioning in Billingshurst
The High Street is the commercial heart of the village, with independent shops, restaurants and pubs and the Jengers Mead shopping precinct. Several of its buildings are old: the Six Bells is a listed 16th century timber framed pub, and the Kings Arms and the Kings Head also stand in the historic commercial core. A pub or restaurant in a building like that needs a careful plan for its outdoor plant, usually in a rear yard, with pipework kept off the front.
Away from the centre, the parish has industrial estates at Brookers Road, Natts Lane, and Daux Road and Daux Way. Industrial units can need cooling for offices, workshops and server rooms, and our planned maintenance contracts keep that equipment serviced on a schedule, including the legal F-Gas leak checks, with every record held on your behalf.
Billingshurst also has larger community buildings, among them The Weald Community School and the Billingshurst Leisure Centre beside it, with a swimming pool and fitness suite. Gyms, offices, shops and hospitality all fall within our commercial work, which covers design, installation and maintenance, scheduled around opening hours and quoted with every unit and its position named.
Visits and Servicing, Six Miles From Our Office
Billingshurst is about six miles from our Sussex office on Worthing Road in Horsham, so the village sits well within our regular area. Bookings for surveys, services and repairs go through the office on 01403 733 492, and if something fails out of hours or in an emergency, Jay and Oscar can be reached on 07802 418530.
Regular servicing keeps the manufacturer warranty valid and catches small faults before they grow. On each visit we clean the filters, look over the coils, clear the drain, check the refrigerant pressures and test the fans, electrics and controls, leaving a written record. If a unit stops cooling or heating, leaks water, ices up, makes a new noise or flashes an error code, we can diagnose it: our air conditioning repairs cover any major brand, priced before the work starts and fitted with genuine parts.
Leak check intervals for larger systems are set in law by CO2 equivalent. A system of 5 to under 50 tonnes is checked every 12 months (every 24 with automatic leak detection), and one of 50 to under 500 tonnes every 6 months (every 12 with leak detection). Servicing or repairing a refrigerant circuit is reserved for certified companies, and our REFCOM certificate runs to 25 May 2028. From the same office we provide air conditioning in Horsham, Storrington and across Sussex and Surrey.

Villages and Hamlets Around Billingshurst
We cover the hamlets and villages around Billingshurst in the RH13, RH14 and RH20 districts, including those over the boundary in Chichester District.
- Five OaksRH14
A hamlet to the north where the A29 meets the A264, with houses from the 16th century to modern times, mostly Victorian, and fine vertical tile hanging.
- AdversaneRH14
A hamlet to the south around a green at a Stane Street crossroads, with typically Sussex timber frame, tile hung and weatherboarded houses.
- ConeyhurstRH14
A small hamlet east of Billingshurst on both sides of the A272, mainly surrounded by farmland and home to a number of local businesses.
- CoolhamRH13
A small village in Shipley parish, south east of Billingshurst at the crossroads of the A272 and the B2139.
- ShipleyRH13
A village just off the A272, where Hilaire Belloc bought King's Land and Shipley Windmill in 1906, with a parish taking in Coolham, Dragon's Green, Brooks Green and Broomer's Corner.
- Brooks GreenRH13
A hamlet in Shipley parish on the road from Coolham to Barns Green, set among farms, orchards and woodland.
- Barns GreenRH13
A village in Itchingfield parish two and a half miles north of Billingshurst, with a shop, a pub, a primary school and a village green.
- ItchingfieldRH13
A small village whose parish church dates from 1125, on the road that runs from Barns Green towards Broadbridge Heath.
- Wisborough GreenRH14
A village and civil parish two miles west of Billingshurst on the A272, within Chichester District.
- KirdfordRH14
A village in Chichester District, once known for forest glass making and later for apple growing.
- PulboroughRH20
A village on Stane Street near the meeting of the Arun and the Rother, on the northern boundary of the South Downs National Park.
- West ChiltingtonRH20
A village on the road between Storrington and Broadford Bridge, with a Grade I listed parish church of St Mary.
Our Services in Billingshurst
The same engineers on every job, from a single bedroom unit to a plant room.

Domestic Air Conditioning Installation
Single split, multi split and ducted systems for houses, bungalows, park homes and garden rooms.
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Commercial Air Conditioning
Design, installation and planned maintenance for offices, shops, bars, hospitality and industrial units.
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Air Conditioning Repairs
Fast diagnosis and repair on any major brand, priced before we start, genuine parts fitted.
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Air Conditioning Servicing
Filters, coils, drains, electrics and refrigerant, with a written record every visit.
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Planned Maintenance
PPM contracts for commercial sites, scheduled around your trading hours rather than ours.
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Specification Sheets
Download the data sheets for the Mitsubishi Heavy Industries and GENERAL systems we install.
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Air Handling
AHUs installed, maintained, repaired and refurbished. Filters, coils, fans, motors and dampers.
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Mechanical Assembly
Pipework, manifolds, valves and plant room assembly, brazed, pressure tested and insulated.
Explore →Your Billingshurst Questions, Answered
Is air conditioning possible in a listed High Street building in Billingshurst?
Often, yes, but it takes planning. Many High Street buildings are timber framed, listed and inside the conservation area, and they usually sit on the back edge of the pavement, so the outdoor unit belongs in a rear yard rather than on the street side. The council notes that listing covers a building inside and out, so consent may be needed even for internal work. Horsham District Council is consulted before any drilling.
How do you get pipework into a chalet bungalow on Daux Avenue?
Chalet bungalows, such as those on Daux Avenue and East Street, have bedrooms in the roof with sloping ceilings and very little eaves space. We plan the route from the outdoor unit to the indoor unit at the survey, which can mean taking the pipework through the eaves, along an internal wall or behind neat trunking. We confirm how the walls are built at the survey, then core the hole for the pipework.
Will an outdoor unit bother my neighbours on a courtyard estate?
It needs thinking about. On estates such as Penfold Grange, laid out around courtyards, and on other modern layouts with small gardens, an outdoor unit can end up facing a neighbour's window. We look at where the unit can sit, how close it is to the boundary and which way it blows before we recommend a position. Inverter units slow down once the room reaches its set temperature, yet the position still matters.
Can you air condition a garden room in Billingshurst?
Yes. A small wall mounted split will cool a garden room in summer and heat it in winter, with the outdoor unit placed against the side or back of the building. If the garden room is not built yet, Horsham District Council advises asking its Development Management team whether planning permission is needed, and on a listed property the listing can extend to detached outbuildings. We size the unit once we know the room and its glazing.
Who handles planning if I live in Wisborough Green or Kirdford?
Both villages are in Chichester District, not Horsham District, so a planning question about an outdoor unit there goes to Chichester District Council. Billingshurst itself comes under Horsham District Council, which also lists the conservation areas at Adversane, Shipley, Pulborough and West Chiltington. Wherever you are, we check the position of the unit and any designations before we drill, and at the survey you will hear from us if consent may be needed.
How far are you from Billingshurst and how do I book?
Our Sussex office is in Horsham, about six miles from the village, so Billingshurst is within easy reach for surveys, servicing and repairs. To book, phone 01403 733 492, or tell us about the system or the room by email at info@jacairconditioning.com. If a unit fails out of hours or you have an emergency, call the engineers directly on 07802 418530.
We Also Work Nearby
Air Conditioning for Billingshurst Homes and Businesses
Call 01403 733 492 or use our contact page to book a survey, telling us a little about the room or building you want to cool. After looking over the walls, the roof and the space outside, Jay or Oscar will put a free quotation in writing, naming every unit.