Air conditioning in Hitchin
We install, service and repair air conditioning in homes and businesses across Hitchin and the villages around it, from Walsworth and Highbury to Ickleford, Pirton and St Ippolyts. Here's how North Herts Council's rules, the town's older streets and parking affect an install.

- Hitchin conservation area designated
- 1969
- three more conservation areas added
- 2011
- single room, from
- £1,850
- repair visit, deducted
- £125
Planning: North Herts Council
Planning in Hitchin is handled by North Hertfordshire District Council, which calls itself North Herts Council. Hertfordshire County Council doesn't decide applications for homes or shops.
A heating-capable outdoor unit on a house is often permitted development, so no application is needed if every limit is met. The main ones: the unit must not be used only for cooling, it must be no bigger than 1.5 m³, and it must pass the MCS 020(a) noise check of 37 dB(A) at neighbours' windows. A terraced or semi-detached house can have one heat pump under these rules, a detached house two. Our planning guide sets out the rest.
In July 2026 the government announced that Hertfordshire's county and district councils will be replaced by four unitary councils from 1 April 2028, subject to Parliament's approval. Most of North Herts, including Hitchin, would join a new central Hertfordshire council with Stevenage and Welwyn Hatfield. Until then, North Herts Council decides applications.
Hitchin's conservation areas
In a conservation area, a unit can't go on a wall or roof facing the road under permitted development, and it can't be closer to a bordering road than the house itself.
| Conservation area | Designated |
|---|---|
| Hitchin, the town centre and surrounding streets | March 1969, reviewed 1998, extended 2011 |
| Butts Close | July 2011 |
| Hitchin Hill Path | July 2011 |
| Hitchin Railway and Ransom's Recreation Ground | July 2011 |
Each area has a character statement and map on the council's website. Listed buildings always need planning permission and listed building consent, wherever they are.
Article 4 directions in Hitchin
North Herts lists two kinds of Article 4 direction that touch Hitchin. The first is an older Hitchin direction, published with its own plan of the area it covers. The second, made in 2022, covers the shopping frontages in the town centre and stops shops, offices and other commercial units being turned into homes without planning permission.
The 2022 direction doesn't affect an outdoor unit. The older one could, depending on what it covers at your address, so we check the council's plan before we quote and tell you if a planning application is the safer route.
Hitchin homes and how we approach them
| Type of home | Typical areas | How we approach it |
|---|---|---|
| Older town centre buildings | Inside the Hitchin conservation area | Some are listed. Expect an application, and keep the outdoor unit at the rear, out of sight from the street. |
| Victorian and Edwardian terraces | Streets around the town centre and towards the station | Rear outdoor units and short pipe runs work best. Check whether your street is in a conservation area first. |
| Interwar and post-war semis and terraces | Outer neighbourhoods and estates | Usually permitted development. A multi-split can cool several bedrooms from one outdoor unit. |
| Flats and newer homes | Near the station, the town centre and on newer estates | Freeholder consent first. One heat pump per block under permitted development, with an outdoor unit up to 0.6 m³. |
| Village houses and cottages | Ickleford, Pirton, Offley, St Ippolyts and Preston | Some villages have their own conservation areas. Detached houses often have room for two units or a multi-split. |
Parking on install day
North Herts runs lettered residents' parking zones in parts of Hitchin, such as Zone J, and Zone K on Bedford Road. A permit is only valid in its own zone and only for eligible addresses, and hours vary by zone. If you live in a zone, tell us when you book and we'll agree where the van can park, because we need to unload the outdoor unit close to the house.
Air conditioning for Hitchin businesses
We fit and look after systems in shops, cafes, restaurants, salons, clinics and offices in the town centre and on the business estates around the town. Many town centre premises are in the conservation area, and some are listed, so we start with where the outdoor unit can go and what consent it needs.
Commercial installs are done in business hours. Wall units suit small shops and offices. Ceiling cassettes suit offices with suspended ceilings. We service and repair most brands, including systems another company fitted.
What air conditioning costs in Hitchin
Our starting prices are the same here as across Hertfordshire and London. Home prices include VAT. Business prices are plus VAT. Planning fees are separate.
- from£1,850inc. VAT
A bedroom or study
2.5 kW wall unit, 5 m pipe, fitted in a day
- from£2,050inc. VAT
A living room
3.5 kW wall unit
- from£3,650inc. VAT
Two rooms, one outdoor unit
Multi-split
- from£5,100inc. VAT
Three rooms
Multi-split
- 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
- from£125inc. VAT
Repair diagnostic visit
First hour on site, deducted if you go ahead
Areas and postcodes we cover
We cover the whole town and the villages around it, including:
- SG4: Walsworth, Highbury, St Ippolyts, Preston and Wymondley
- SG5: Oughton, Ickleford, Pirton and Offley
- Bearton and Priory, which span both postcode districts
- Nearby: Letchworth Garden City, Stevenage and Baldock
Hitchin questions
Do I need planning permission for air conditioning in Hitchin?
Often not. A heating-capable unit on a house can be permitted development if it meets the size, position and noise limits. You'll need permission for a listed building, a cooling-only unit, or a unit facing the road in a conservation area. Applications go to North Herts Council.
My house is in the Hitchin conservation area. Can I still have air conditioning?
Usually, yes, with care. The outdoor unit can't go on a wall or roof facing the road under permitted development, so we look for a rear or side position. If the building is listed, you'll need planning permission and listed building consent as well.
Does the Article 4 direction on Hitchin town centre affect me?
The 2022 direction controls turning shops and offices into homes, not outdoor units. North Herts also lists an older Hitchin Article 4 direction, so we check the council's plan for your address before we quote.
Which unit suits a loft room in a Hitchin terrace?
Most loft rooms need 2.5 kW or 3.5 kW, depending on size and how many roof windows face south. We measure the room at the survey. The outdoor unit usually goes on the rear wall or a flat roof at the back.
Do you fit air conditioning in Hitchin shops?
Yes. Commercial wall units start from £1,795 plus VAT and ceiling cassettes from £2,750 plus VAT. In the conservation area, we plan the outdoor unit's position and the consents before we book the work.
My air conditioning has stopped working. What does a repair cost?
A repair diagnostic visit is £125 including VAT. It covers the first hour on site and comes off the bill if you go ahead. We repair most brands, whoever fitted them.