To answer this question accurately we would need to assess a few things. Hence we recommend scheduling a call with one of our specialists to do so. However, you're looking at a bare minimum investment of £1,500 for the installation of an air-to-air conditioning unit (please note that we are now able to accept most credit cards). The bigger the area, the bigger the inverter and unit required. Things to keep in consideration are the width, length and height of a room or area, the window surface area or size, if the room in question has closed entries or doors, as well as the sort of electrical equipments used on a day to day basis around the area (i.e. computers, lamps, ovens, washing machines and dryers).

The work is usually carried out in one to three days depending on the amount of work required. And we are usually able to attend to your needs within 14 days.

We currently service and fit new installations of air-to-air conditiion units in West Sussex, London and Kent, covering most of the southeast of England. Specifically, the towns below:

In West Sussex: Adversane, Albourne, Aldingbourne, Aldsworth, Aldwick, Almodington, Amberley, Ancton, Angmering, Ansty, Apuldram, Ardingly, Arundel, Ashfold, Ashington, Ashurst, Ashurst Wood, Atherington. Balcombe, Balls Cross, Barlavington, Barnham, Barns Green, Bedham, Bepton, Bignor, Billingshurst, Bilsham, Binderton, Birdham, Bolney, Bognor Regis, Borden, Bosham, Bosham Hoe, Botolphs, Boxgrove, Bracklesham Bay, Bramber, Broadbridge Heath, Brooks Green, Broomer's Corner, Burgess Hill, Burpham, Bury, Brighton, Byworth. Charlton, Chichester, Chidham, Chilgrove, Chithurst, Church Norton, Clapham, Climping, Cocking, Codmore Hill, Coldwaltham, Colgate, Colworth, Compton, Coneyhurst, Coolham, Coombes, Cootham, Copsale, Copthorne, Coultershaw Bridge, Cowfold, Crabtree, Crawley, Crawley Down, Crockerhill, Cuckfield. Dell Quay, Dial Green, Dial Post, Didling, Donnington, Duncton, Durfold Wood, Durleighmarsh, Durrington. Earnley, Eartham, Easebourne, East Ashling, East Dean, East Grinstead, East Hampnett, East Harting, East Lavant, East Lavington, East Marden, East Preston, East Wittering, Eastergate, Ebernoe, Egdean, Elmer, Elsted. Faygate, Felpham, Fernhurst, Ferring, Findon, Fishbourne, Fishersgate, Fittleworth, Five Oaks, Flansham, Fontwell, Ford, Foul Mile, Fulking, Funtington, Fyning. Gay Street, Goddards Green, Goose Green, Goring by Sea, Graffham. Habin, Halnaker, Hammer, Hampers Green, Handcross, Hardham, Harting, Hassocks, Haywards Heath, Heath End (West Sussex), Henfield, Henley (near Fernhurst), Heyshott, Hickstead, High Salvington, Highbrook, Hill Brow, Horsham, Horsted Keynes, Houghton, Hoyle, Hunston, Hurstpierpoint, Hurst Wickham. Ifield, Ifold, Iping, Itchenor, Itchingfield. Keymer, Kingsfold, Kingsley Green, Kingston by Ferring, Kingston by Sea, Kirdford. Lancing, Langley, Lavant, Lidsey, Lickfold, Linch, Linchmere, Lindfield, Littlehampton, Lodsworth, Lower Beeding, Loxwood, Lurgashall, Lyminster. Madehurst, Mannings Heath, Maudlin, Merston, Mid Lavant, Middleton-on-Sea, Midhurst, Milland, Monk's Gate, Minsted. Newtimber, North Bersted, Newpound Common, North Marden, North Horsham, North Mundham, North Stoke, Northchapel, Norton, Nutbourne (Chichester), Nutbourne (Horsham), Nuthurst, Nyewood, Nyetimber, Nyton. Offham, Oving. Pagham, Parham, Partridge Green, Patching, Pease Pottage, Petworth, Plaistow, Plummer's Plain, Poling, Poynings, Prinsted, Pulborough, Pyecombe. Quebec (West Harting). Rake, Redford, River, Rogate, Rose Green, Rowhook, Rudgwick, Runcton, Rustington. Sayers Common, Selham, Selsey, Selsfield Common, Sharpthorne, Shermanbury, Shillinglee, Shipley, Shipton Green, Shoreham-by-Sea, Shripney, Sidlesham, Singleton, Slaugham, Slindon, Slinfold, Small Dole, Somerley, Sompting, South Ambersham, South Bersted, South Harting, South Stoke, Southbourne, Southwater, Southwick, Spear Hill, Staplefield, Stedham, Steyning, Stopham, Storrington, Stoughton, Strettington, Strood Green, Sullington, Sutton. Tangmere, Terwick, Terwick Common, Thakeham, Three Bridges, Tillington, Tisman's Common, Tortington, Tote Hill, Treyford, Trotton, Turners Hill, Twineham. Up Marden, Upper Beeding, Upperton, Upwaltham. Walberton, Walderton, Warnham, Warningcamp, Warninglid, Washington, Watersfield, West Ashling, West Burton, West Chiltington, West Dean, West Grinstead, West Harting, West Hoathly, West Itchenor, West Lavington, West Marden, West Preston, West Stoke, West Thorney, West Wittering, Wepham, Westbourne, Westergate, Westerton, Westhampnett, Whitemans Green, Wick, Wiggonholt, Wineham, Wisborough Green, Woodgate, Woodmancote (Horsham), Woodmancote (Chichester), Woolbeding, Worth, Worthing. Yapton.

In London: Abbey Wood, Acton, Addington, Addiscombe, Albany Park, Aldborough Hatch, Aldgate, Aldwych, Alperton, Anerley, Angel, Aperfield, Archway, Ardleigh Green, Arkley, Arnos Grove, Balham, Bankside, Barbican, Barking, Barkingside, Barnehurst, Barnes, Barnes Cray, Barnet Gate, Barnet (also Chipping Barnet, High Barnet), Barnsbury, Battersea, Bayswater, Beckenham, Beckton, Becontree, Becontree Heath, Beddington, Bedford Park, Belgravia, Bellingham, Belmont, Belmont, Belsize Park, Belvedere, Bermondsey, Berrylands, Bethnal Green, Bexley (also Old Bexley, Bexley Village), Bexleyheath (also Bexley New Town), Bickley, Biggin Hill, Blackfen, Blackfriars, Blackheath, Blackheath Royal Standard, Blackwall, Blendon, Bloomsbury, Botany Bay, Bounds Green, Bow, Bowes Park, Brentford, Brent Cross, Brent Park, Brimsdown, Brixton, Brockley, Bromley, Bromley (also Bromley-by-Bow), Bromley Common, Brompton, Brondesbury, Brunswick Park, Bulls Cross, Burnt Oak, Burroughs, The, Camberwell, Cambridge Heath, Camden Town, Canary Wharf, Cann Hall, Canning Town, Canonbury, Carshalton, Castelnau, Castle Green, Catford, Chadwell Heath, Chalk Farm, Charing Cross, Charlton, Chase Cross, Cheam, Chelsea, Chelsfield, Chessington, Childs Hill, Chinatown, Chinbrook, Chingford, Chislehurst, Chiswick, Church End, Church End, Clapham, Clerkenwell, Cockfosters, Colindale, Collier Row, Colliers Wood, Colney Hatch, Colyers, Coney Hall, Coombe, Coombe, Coulsdon, Covent Garden, Cowley, Cranford, Cranham, Crayford, Creekmouth, Crews Hill, Cricklewood, Crofton Park, Crook Log, Crossness, Crouch End, Croydon, Crystal Palace, Cubitt Town, Cudham, Custom House, Dagenham, Dalston, De Beauvoir Town, Denmark Hill, Deptford, Derry Downs, Dollis Hill, Downe, Downham, Dulwich, Ealing, Earls Court, Earlsfield, East Barnet, East Bedfont, East Dulwich, East Finchley, East Ham, East Sheen, East Wickham, Eastcote, Eden Park, Edgware, Edmonton, Eel Pie Island, Elephant and Castle, Elm Park, Elmers End, Elmstead, Eltham, Emerson Park, Enfield Highway, Enfield Lock, Enfield Town, Enfield Wash, Erith, Falconwood, Farringdon, Feltham, Finchley, Finsbury, Finsbury Park, Fitzrovia, Foots Cray, Forest Gate, Forest Hill, Forestdale, Fortis Green, Freezywater, Friern Barnet, Frognal, Fulham, Fulwell, Gallows Corner, Gants Hill, Gidea Park, Gipsy Hill, Goddington, Golders Green, Goodmayes, Gospel Oak, Grahame Park, Grange Park, Greenford, Greenwich, Grove Park, Grove Park, Gunnersbury, Hackney, Hackney Central, Hackney Marshes, Hackney Wick, Hadley Wood, Haggerston, Hainault, The Hale, Ham, Hammersmith, Hampstead, Hampstead Garden Suburb, Hampton, Hampton Hill, Hampton Wick, Hanwell, Hanworth, Harefield, Harlesden, Harlington, Harmondsworth, Harold Hill, Harold Park, Harold Wood, Harringay, Harrow, Harrow on the Hill, Harrow Weald, Hatch End, Hatton, Havering-atte-Bower, Hayes, Hayes, Hazelwood, Hendon, Herne Hill, Heston, Highams Park, Highbury, Highgate, Hillingdon, Hither Green, Holborn, Holland Park, Holloway, Homerton, Honor Oak, Hook, Hornchurch, Horn Park, Hornsey, Hounslow, Hoxton, The Hyde, Ickenham, Ilford, Isle of Dogs, Isleworth, Islington, Kenley, Kennington, Kensal Green, Kensington, Kentish Town, Kenton, Keston, Kew, Kidbrooke, Kilburn, King's Cross, Kingsbury, Kingston Vale, Kingston upon Thames, Knightsbridge, Ladywell, Lambeth, Lamorbey, Lampton, Lea Bridge, Leamouth, Leaves Green, Lee, Lessness Heath, Lewisham, Leyton, Leytonstone, Limehouse, Lisson Grove, Little Ilford, Little Venice, Locksbottom, Longford, Longlands, Lower Clapton, Lower Morden, Loxford, Maida Vale, Malden Rushett, Manor House, Manor Park, Marks Gate, Maryland, Marylebone (also St Marylebone), Mayfair, Maze Hill, Merton Park, Middle Park, Mile End, Mill Hill, Millbank, Millwall, Mitcham, Monken Hadley, Morden, Morden Park, Mortlake, Motspur Park, Mottingham, Muswell Hill, Neasden, New Addington, New Barnet, New Cross, New Eltham, New Malden, New Southgate, Newbury Park, Newington, Nine Elms, Noak Hill, Norbiton, Norbury, North Cray, North End, North Finchley, North Harrow, North Kensington, North Ockendon, North Sheen, North Woolwich, Northolt, Northumberland Heath, Northumberland Park, Northwood, Norwood Green, Notting Hill, Nunhead, Oakleigh Park, Old Coulsdon, Old Ford, Old Malden, Old Oak Common, Orpington, Osidge, Osterley, Oval, Paddington, Palmers Green, Park Royal, Parsons Green, Peckham, Penge, Pentonville, Perivale, Petersham, Petts Wood, Pimlico, Pinner, Plaistow, Plaistow, Plumstead, Ponders End, Poplar, Pratt's Bottom, Preston, Primrose Hill, Purley, Putney, Queen's Park, Queensbury, Rainham, Ratcliff, Rayners Lane, Raynes Park, Redbridge, Richmond, Riddlesdown, Roehampton, Romford, Rotherhithe, Ruislip, Rush Green, Ruxley, Sanderstead, Sands End, Selhurst, Selsdon, Seven Kings, Seven Sisters, Shacklewell, Shadwell, Shepherd's Bush, Shirley, Shooter's Hill, Shoreditch, Sidcup, Silvertown, Sipson, Slade Green, Snaresbrook, Soho, Somerstown, South Croydon, South Hackney, South Harrow, South Hornchurch, South Kensington, South Norwood, South Ruislip, South Wimbledon, South Woodford, South Tottenham, Southend, Southall, Southborough, Southfields, Southgate, Spitalfields, St Helier, St James's, St Margarets, St Giles, St Johns, St John's Wood, St Luke's, St Mary Cray, St Pancras, St Paul's Cray, Stamford Hill, Stanmore, Stepney, Stockwell, Stoke Newington, Stonebridge, Stratford, Strawberry Hill, Streatham, Stroud Green, Sudbury, Sundridge, Surbiton, Surrey Quays, Sutton, Swiss Cottage, Sydenham (also Lower Sydenham, , Upper Sydenham), Sydenham Hill, Teddington, Temple, Temple Fortune, Thamesmead, Thornton Heath, Tokyngton, Tolworth, Tooting, Tooting Bec, Tottenham, Tottenham Green, Tottenham Hale, Totteridge, Tower Hill, Tufnell Park, Tulse Hill, Turnpike Lane, Twickenham, Upminster, Upminster Bridge, Upper Clapton, Upper Holloway, Upper Norwood, Upper Ruxley, Upper Walthamstow, Upton, Upton Park, Uxbridge, Vauxhall, Waddon, Wallington, Walthamstow, Walthamstow Village, Walworth, Wandsworth, Wanstead, Wapping, Wealdstone, Well Hall, Welling, Wembley, Wembley Park, Wennington, West Brompton, West Drayton, West Ealing, West Green, West Hackney, West Ham, West Hampstead, West Harrow, West Heath, West Hendon, West Kensington, West Norwood, West Wickham, Westcombe Park, Westminster, Whetstone, White City, Whitechapel, Widmore (also Widmore Green), Whitton, Willesden, Wimbledon, Winchmore Hill, Wood Green, Woodford, Woodford Green, Woodlands, Woodside, Woodside Park, Woolwich, Worcester Park, Wormwood Scrubs, Yeading, Yiewsley.

In Kent: Aldington, Appledore, Bethersden, Biddenden, Bilsington, Bilting, Bonnington, Boughton Aluph, Boughton Lees, Brabourne, Brabourne Lees, Bromley Green, Brook, Challock, Charing, Cheeseman's Green, Chilham, Chilmington Green, Crundale, Eastwell, Ebony, Egerton, Finberry, Godinton, Godmersham, Great Chart, Hamstreet, Hastingleigh, High Halden, Hinxhill, Hothfield, Kenardington, Kennington, Kingsnorth, Leigh Green, Little Chart, Mersham, Molash, Newenden, Newtown, Olantigh, Orlestone, Park Farm, Pluckley, Pluckley Thorne, Reading Street, Rolvenden, Rolvenden Layne, Ruckinge, St Michaels, Sevington, Shadoxhurst, Shirkoak, Singleton, Small Hythe, Smarden, Smeeth, Stanhope, Stonebridge Green, Stone in Oxney, Stubbs Cross, Snave, Tenterden, Warehorne, West Brabourne, Westwell, Westwell Leacon, Willesborough, Wittersham, Woodchurch, Wye, Adisham, Barham, Bekesbourne, Beltinge, Bishopsbourne, Blean, Bramling, Bridge, Broad Oak, Broomfield, Chartham, Chestfield, Chislet, Eddington, Fordwich, Greenhill, Hackington, Hales Place, Harbledown, Hawthorn, Herne, Herne Bay, Hersden, Hillborough, Hoath, Ickham, Kingston, Littlebourne, Lower Hardres, Marshside, Nackington, Patrixbourne, Petham, Pett Bottom, Reculver, Rough Common, Stourmouth, Stuppington, Sturry, Swalecliffe, Tankerton, Thanington, Tyler Hill, Upper Harbledown, Upper Hardres, Waltham, Westbere, Whitstable, Wickhambreaux, Wincheap, Womenswold, Woolage Green, Woolage Village, Yorkletts, Bean, Betsham, Darenth, Greenhithe, Hawley, Hook Green, Longfield, Long Reach, New Barn, Northfleet Green, Joyce Green, Southfleet, Stone, Sutton-at-Hone, Swanscombe, Temple Hill, Wilmington, Alkham, Ash, Ashley, Aylesham, Barfrestone, Barnsole, Betteshanger, Buckland, Capel-le-Ferne, Chillenden, Church Whitfield, Coldred, Coombe, Deal, Denton, Drellingore, East Langdon, Eastry, East Studdal, Elmstone, Elvington, Ewell Minnis, Eythorne, Farthingloe, Finglesham, Frogham, Goodnestone, Great Mongeham, Little Mongeham, Guston, Hacklinge, Ham, Hoaden, Hougham, Kearsney, Kingsdown, Knowlton, Langdon, Lydden, Marley, Marshborough, Martin, Martin Mill, Maxton, Nonington, Northbourne, Pineham, Plucks Gutter, Preston, Richborough, Ringwould, Ripple, River, Sandwich, Shatterling, Shepherdswell, Sholden, Snowdown, St Margaret's at Cliffe, Staple, Stourmouth, Sutton, Swingate, Temple Ewell, Tilmanstone, Waldershare, Walmer, Ware, West Langdon, West Studdal, Westcliffe, Westmarsh, Whitfield, Wingham, Woodnesborough, Wootton, Worth, Chalk, Cobham, Culverstone Green, Dode, Harvel, Higham, Istead Rise, Luddesdown, Meopham, Meopham Green, Northfleet, Painters Ash, Singlewell, Shorne, Sole Street, Springhead, Thong, Vigo, Allington, Ashbank, Barming, Bearsted, Bedmonton, Benover, Beult, Bexon, Bicknor, Boughton Green, Boughton Malherbe, Boughton Monchelsea, Boxley, Bredhurst, Broomfield, Caring, Chainhurst, Chart Sutton, Chegworth, Collier Street, Coxheath, Detling, Downswood, East Barming, East Farleigh, East Sutton, Fairbourne, Frinsted, Grove Green, Harrietsham, Hawkenbury, Headcorn, Hollingbourne, Horden, Hucking, Hunton, Kingswood, Kit's Coty, Ladingford, Langley, Leeds, Lenham, Lidsing, Linton, Loose, Lordswood, Marden, Marley, Milebush, Nettlestead, Nettlestead Green, Otham, Otterden, Park Wood, Platts Heath, Penenden Heath, Pollhill, Ringlestone (hamlet), Ringlestone (suburb), Sandling, Sandway, Shepway, Sutton Valence, Staplehurst, Stockbury, Teston, Thurnham, Tovil, Ulcombe, Walderslade, Weavering, West Farleigh, Wormshill, Yalding, Yelsted, Allhallows, Borstal, Brompton, Chattenden, Cliffe, Cliffe Woods, Cooling, Cuxton, Frindsbury, Frindsbury Extra, Gillingham, Halling, Hempstead, High Halstow, Hoo St Werburgh, Isle of Grain, Lordswood, Park Wood, Rochester, Rainham, Rainham Mark, St Mary Hoo, St Mary's Island, Stoke, Strood, Twydall, Upnor, Wainscott, Walderslade, Wigmore, Ash, Badgers Mount, Bessels Green, Bough Beech, Brasted, Brasted Chart, Chartwell, Chevening, Chiddingstone, Chiddingstone Causeway, Chipstead, Cowden, Crockenhill, Crockham Hill, Dunton Green, Edenbridge, Eynsford, Farningham, Fawkham, Fawkham Green, Fordcombe, Four Elms, Godden Green, Halstead, Hartley, Hever, Hextable, Hodsoll Street, Horton Kirby, Ide Hill, Kemsing, Knockholt, Leigh, Markbeech, Marsh Green, New Ash Green, Otford, Penshurst, Ridley, Riverhead, Seal (including Stone Street) • Seal Chart, Sevenoaks Weald, Shoreham, South Darenth, Sundridge, Swanley, Swanley Village, Toys Hill, Underriver, Well Hill, Westerham, West Kingsdown, Acrise, Acrise Place, Arpinge, Beachborough, Bladbean, Breach, Brenzett, Brookland, Burmarsh, Cheriton, Danton Pinch, Dymchurch, Dungeness, Elham, Etchinghill, Frogholt, Greatstone, Hawkinge, Hythe, Ivychurch, Lade, Littlestone-on-Sea, Lydd, Lydd-on-Sea, Lyminge, Lympne, Newbarn, Newchurch, Newingreen, Newington, New Romney, Old Hawkinge, Old Romney, Ottinge, Paddlesworth, Pedlinge, Peene, Postling, Rhodes Minnis, Saltwood, Sandgate, Sandling, Sellindge, Snargate, Stanford, Stelling Minnis, St Mary in the Marsh, St Mary's Bay, Westenhanger, West Hythe, Wingmore, Badlesmere, Bapchild, Bobbing, Borden, Boughton Street, Boughton under Blean, Bredgar, Brogdale, Buckland, Chestnut Street, Conyer, Dargate, Davington, Denstroude, Doddington, Dunkirk, Eastchurch, Eastling, Elmley, Faversham, Faversham Without, Goodnestone, Graveney, Halfway Houses, Hartlip, Harty, Heart's Delight, Hernhill, Highsted, Iwade, Kemsley, Keycol, Leaveland, Leysdown-on-Sea, Lower Halstow, Luddenham, Lynsted, Milstead, Milton Regis, Minster, Mockbeggar, Murston, Newington, Newnham, North Street, Norton, Norton Ash, Oad Street, Oare, Ospringe, Oversland, Painters Forstal, Queenborough, Rodmersham Green, Rushenden, Selling, Sheldwich, Shellness, Sheerness, Stalisfield, Stone Chapel, Teynham, Throwley, Tonge, Tunstall, Upchurch, Uplees, Warden, Waterham, Whitehill, Acol, Birchington-on-Sea, Broadstairs, Brooks End, Cliffsend, Cliftonville, Ebbsfleet, Flete, Garlinge, Manston, Minster, Monkton, Newington, Palm Bay, Ramsgate, Reading Street, Sarre, Sevenscore, St Nicholas-at-Wade, St Peter's, Westbrook, Westwood, Westgate-on-Sea, Addington, Aylesford, Beltring, Birling, Blue Bell Hill, Borough Green, Burham, Ditton, East Malling, East Peckham, Eccles, Golden Green, Hadlow, Hildenborough, Ightham, Ivy Hatch, Larkfield, Leybourne, Mereworth, New Hythe, Offham, Platt, Plaxtol, Ryarsh, Shipbourne, Snodland, St Mary's Platt, Stansted, Tonbridge, Trottiscliffe, Walderslade, Wateringbury, West Malling, West Peckham, Wouldham, Wrotham, Wrotham Heath, Ashurst, Benenden, Bidborough, Brenchley, Capel (including Somerhill), Colliers Green, Coursehorn, Cranbrook, Culverden Down, Curtisden Green, Five Oak Green, Frittenden, Goudhurst, Groombridge, Hartley, Hawkenbury, Hawkhurst, High Brooms, Horsmonden, Kilndown, Lamberhurst, Langton Green, Matfield, Paddock Wood, Park, Pembury, Rusthall, Sandhurst, Southborough, Speldhurst, Stone Cross, Sissinghurst, Swattenden.