Ducted air conditioning in Hertfordshire
Cooling and heating for offices, shops and hospitality venues in Hertfordshire, with a free site survey and a fixed written quote.
- Free site survey and fixed written quote
- Unit sizes, refrigerant and price set out in writing
- Work planned around your opening hours
How much does ducted air conditioning cost in Hertfordshire?
Our guide range in Hertfordshire is £3,750–£8,595 per ducted zone before VAT; a typical job (reception or boardroom with one ducted zone) is £4,250–£8,595 plus VAT. Your exact price is fixed in writing once we have surveyed.
Ducted air conditioning uses an indoor unit hidden in the ceiling void or a plant space, connected by ductwork to grilles or slot diffusers in the room.
Covering Hertfordshire and nearby
We cover all of Hertfordshire, including Watford, Hemel Hempstead, Stevenage, St Albans and Welwyn Garden City. Each town below has its own page with local guide prices.
Postcode districts we cover include AL1, AL8, EN7, HP4, SG6, SG13, WD6 and WD99. For ducted air conditioning in Hertfordshire, the survey looks at where the outdoor unit can go, how pipework will reach the indoor units and whether the electrical supply has capacity.
What you get
- Survey of void depth and duct routes
- Ducted unit selection by capacity and external static pressure
- Supply and return ductwork, plenums and grilles
- Pipework, condensate and controls
- Air-flow balancing and commissioning
Ducted AC prices in Hertfordshire
These guide prices are adjusted for the East of England, where labour and access costs run about 8% above the UK guide.
| Item | Guide price (ex VAT) | Inc VAT | Basis |
|---|---|---|---|
| Low-profile ducted unit (up to about 7 kW) | £3,750–£6,450 | £4,500–£7,740 | per zone |
| Medium static ducted unit (7–14 kW) | £5,350–£8,595 | £6,420–£10,314 | per zone |
| Linear slot diffuser | £155–£425 | £186–£510 | per metre |
| Access panel and ceiling making good | £155–£535 | £186–£642 | per unit |
Ex VAT, supply and install including standard ductwork.
The steps for a project in Hertfordshire
Survey and route
We check void depths and plan routes for supply and return ductwork.
Design the air side
Grille sizes and positions are chosen for even air flow and low noise.
Install unit and ducts
The unit is hung with access for servicing; ductwork and grilles are fitted. In Hertfordshire we agree timings around your opening hours.
Balance and commission
Air flows are measured and balanced, then the system is commissioned.
What to think about in Hertfordshire
Noise
Duct sizes and grille velocities are chosen to keep noise down in quiet rooms.
Roof and height work
Flat roofs, high walls and atriums need the right access equipment and edge protection. We plan towers, MEWPs or scaffold before the job, not on the day.
Void depth
Low-profile ducted units can fit voids of around 250 mm, but ductwork adds depth. We measure the route as well as the unit position.
Neighbours and noise
Outdoor units near flats — common above shops — need careful siting so noise at neighbours' windows stays low. We choose positions and quieter units with that in mind.
Who we work with in Hertfordshire
- Restaurants and cafés: dining rooms that stay comfortable next to a hot kitchen and a busy service.
- Hotels and hospitality: quiet bedroom units, public-area cooling and heat recovery for hotels.
- Warehouses and industrial: cooling for offices, mezzanines, control rooms and temperature-sensitive areas.
- Pubs and bars: cooling for busy bars, function rooms and cellars, sited with neighbours in mind.
Two rules matter for most businesses in England: GB F-gas rules (leak checks from 5 tonnes CO2e) and the periodic energy inspection for more than 12 kW of air conditioning.
Common questions from businesses in Hertfordshire
How much does ducted air conditioning cost in Hertfordshire?
Guide prices in Hertfordshire run from about £3,750 to £8,595 per ducted zone, plus VAT. A typical job (reception or boardroom with one ducted zone) costs £4,250–£8,595 plus VAT. We fix the price in writing after a free survey.
Do you also cover Buckinghamshire, Bedfordshire and London?
Yes. Alongside Hertfordshire, we also cover Buckinghamshire, Bedfordshire and London. Each has its own page with local guide prices.
Can ducted units bring in fresh air?
Some ducted units can accept a fresh-air connection; in other cases ventilation is provided separately.
Is ducted air conditioning more expensive?
Usually a little more than a cassette of the same capacity, because of the ductwork, grilles and access panel. In return you get a much cleaner ceiling.
Need ducted air conditioning in Hertfordshire?
Free survey and fixed written quote. We reply with a guide price or to book the survey.