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Air conditioning in Stotfold and Fairfield

We install, service and repair air conditioning in Stotfold, Fairfield and Astwick, on the Bedfordshire side of the border with Letchworth. Here's how the town's old cottages, its newer estates and the listed former hospital at Fairfield affect an install.

Victorian brick terraces beside a small river with willows and a footbridge in a Bedfordshire market town
the year Stotfold became a town
1974
postcode district, shared with Hitchin
SG5
single room, from
£1,850
two rooms, one outdoor unit
£3,650
We cover Stotfold. Do you need planning permission?Many homes can have air con fitted without it. Check your postcode against official conservation area and Article 4 data in seconds.

Central Bedfordshire in official figures

households (2021 Census)
120,755
live in a flat
12 in 100
live in a house
86 in 100
listed building entries
1,936

Of 120,755 households in the 2021 Census, 86 in 100 lived in a house (29 detached, 34 semi-detached, 23 terraced) and 12 in 100 in a flat. Most installs here are on houses, where a back or side wall is usually the simplest place for the outdoor unit.

In a conservation area an outdoor unit can't go on a wall or roof facing a road without planning permission, and an Article 4 direction can remove permitted development rights altogether. Check your postcode to see whether either applies to your street.

Figures for the whole Central Bedfordshire council area. Sources: ONS Census 2021, table TS044 (accommodation type); Historic England's National Heritage List entries within the council boundary, through planning.data.gov.uk (one entry can cover several buildings). Checked October 2026.

From a drovers' stop on the Ivel to a town

Stotfold Town Council says the name probably comes from drovers on the Great North Road, who penned their young cattle, or stots, in folds here overnight. The River Ivel runs through the town, and the Domesday Book records four water mills in the parish.

For centuries Stotfold was a farming village. A local history published by Bedfordshire Archives describes how that changed after Letchworth Garden City was founded in 1903, when more and more residents went to work there. The parish council became Stotfold Town Council in 1974, and the town has kept growing, with newer estates off Arlesey Road and at Roker Park by The Green.

Mills, cottages and the old village streets

Historic England lists 18 entries in Stotfold parish. They include the Church of St Mary the Virgin, listed Grade II*, and two old mills. Stotfold Mill on Mill Lane is an early 19th-century watermill on the Ivel, built of gault brick and weatherboarding. It was gutted by fire in 1992 and has since been restored. Taylor's Mill on Taylor's Road is now a private home.

Most of the other listed buildings are houses and cottages, on Brook Street, Rook Tree Lane, Queen Street and The Green. Older cottages like these often have thick walls and low ceilings, so we plan the pipe route and the indoor unit's position carefully at the survey.

Fairfield: a Victorian hospital turned village

Fairfield, south-west of Stotfold, grew on the site of the Three Counties Asylum, which opened in 1860 to serve Bedfordshire, Hertfordshire and Huntingdonshire. It later became Fairfield Hospital and closed at the end of the 1990s. The site was redeveloped as Fairfield Park, planned for about 900 houses and 100 apartments, reusing some of the original buildings. Fairfield became a parish of its own, separate from Stotfold, on 1 April 2013.

The main hospital building, designed by George Fowler Jones and built from 1856 to 1860 in yellow brick, is listed Grade II, as are its church and its isolation hospital. If your flat is in one of these buildings, an outdoor unit and the pipe route need listed building consent as well as the freeholder's agreement.

Fairfield also has an Article 4 direction. Since 5 January 2021, houses there need planning permission for roof enlargements such as dormers, extra storeys and porches. It doesn't cover heat pumps, and it doesn't apply to homes in the converted former hospital. Fairfield's own neighbourhood plan, adopted in 2017, is used alongside the council's policies.

Stotfold homes and what they mean for an install

Type of homeTypical areasWhat it means for the install
Older cottages and village housesBrook Street, Rook Tree Lane, Queen Street and The GreenCheck if yours is listed. If not, a rear or side unit is usually permitted development, with a careful pipe route.
20th-century family homesAcross the townUsually permitted development. A multi-split serves two to four bedrooms from one outdoor unit at the side or rear.
Newer estatesOff Arlesey Road, Roker Park and other recent sitesCheck the planning permission for conditions on external equipment, and the deeds or management company rules.
Apartments in the former hospitalFairfieldListed Grade II. Listed building consent and freeholder consent before any outdoor unit is fixed.
Houses at Fairfield ParkFairfieldUsually permitted development for a heat pump. Check the estate rules and the management company first.

Planning: Central Bedfordshire Council

Stotfold, Fairfield and Astwick are all in Central Bedfordshire, so planning applications go to Central Bedfordshire Council. A heating-capable unit on a house is often permitted development if it meets the limits on size, position and noise. Cooling-only units, listed buildings and units on road-facing walls in a conservation area need permission. Our planning guide explains each rule.

Stotfold itself has no conservation area on the council's list. Astwick, the small parish just north of the town, has one, with an appraisal from January 2009. Away from Astwick, listed buildings and planning conditions on newer homes are the main things we check before we quote.

Air conditioning for Stotfold businesses

We fit and service systems in shops, cafes, pubs, surgeries, salons and offices across Stotfold and Fairfield, and in workshops with office space. Ceiling cassettes suit offices with suspended ceilings, and wall units suit shops and smaller rooms.

Commercial installs are done in business hours. We take over servicing from other installers, carry out F-Gas leak checks on systems that need them, and can cover several sites under one maintenance contract.

What air conditioning costs in Stotfold

Our starting prices are the same here as across Bedfordshire and London. Home prices include VAT; business prices are plus VAT. The survey gives you a fixed written price.

  • A bedroom or study

    2.5 kW wall unit, 5 m pipe, fitted in a day

    from£1,850inc. VAT
  • A living room

    3.5 kW wall unit

    from£2,050inc. VAT
  • Open plan or a loft

    5 kW wall unit

    from£2,450inc. VAT
  • Two rooms, one outdoor unit

    Multi-split

    from£3,650inc. VAT
  • Three rooms

    Multi-split

    from£5,100inc. VAT
  • Commercial wall unit

    Fitted in business hours

    from£1,795+ VAT
  • Ceiling cassette

    In a suitable suspended ceiling

    from£2,750+ VAT
  • An annual service

    Keeps the manufacturer warranty valid

    from£119inc. VAT

Areas and postcodes we cover

We cover the whole town and the places around it, including:

  • SG5: Stotfold, Fairfield and Astwick
  • Nearby in Bedfordshire: Arlesey, Henlow and Biggleswade
  • Nearby in Hertfordshire: Letchworth Garden City, Baldock and Hitchin

Stotfold questions

Do I need planning permission for air conditioning in Stotfold?

Often not. A heating-capable unit on a house can be permitted development if it meets the size, position and noise limits. Stotfold has no conservation area, so the main exceptions are listed buildings, cooling-only units and homes whose planning permission removed these rights. Applications go to Central Bedfordshire Council.

I live in a flat in the old Fairfield Hospital. Can I have air con?

Possibly, but it takes more paperwork. The main building is listed Grade II, so an outdoor unit and its pipe route need listed building consent, and the freeholder or management company must agree. We look at the building first and give you the details for any application before we book the install.

Does the Fairfield Article 4 direction stop me fitting a heat pump?

No. It removes permitted development rights for roof enlargements, extra storeys and porches on Fairfield houses. It doesn't cover heat pumps. A unit that meets the usual limits on size, position and noise can still be permitted development, as long as your own planning permission doesn't say otherwise.

My postcode says Hitchin. Which council do I apply to?

If you live in Stotfold, Fairfield or Astwick, it's Central Bedfordshire Council, even though the postcode is SG5. Letchworth Garden City, just over the border, is in North Hertfordshire, so planning there goes to North Hertfordshire District Council.

How much does air con cost for an open-plan room or a loft?

A 5 kW wall unit for an open-plan room or a loft starts from £2,450 including VAT. A living room usually needs a 3.5 kW unit, from £2,050. We size each room at the survey, so you don't pay for more than you need.

Can you repair or regas my existing system?

Yes. We repair most brands, whoever fitted them. We confirm the cost of the repair visit when you book, and the repair itself is priced in writing before any work starts. If the system is low on refrigerant, we find and fix the leak before any regas.