New build and renovation air conditioning across County Durham
First-fix pipework in Durham extensions goes in while the joists and studs are open. For new Durham extensions with flat roofs, the outdoor unit position is best agreed against the architect's drawings. Cold, windy North East winters favour a well-sized heat pump with an outdoor unit sheltered from the prevailing wind.
Prices in County Durham
In North East England, our guide range for air conditioning for new builds and renovations is £365–£795 per indoor position (first fix), including VAT. That sits a little below the UK middle, reflecting typical North East England labour rates. What moves a quote in County Durham up or down is mostly pipe length, how high the outdoor unit goes, and whether a new electrical circuit is needed. As an example, the First and second fix option (complete install priced per room including units) would typically be £1,345–£2,695 here.
First fix only
Pipework and drains to each position for a later install.
First and second fix
Complete install priced per room including units.
Ducted design and build
Concealed ducted system designed into the build.
Guide prices show VAT at 20%. HMRC treats most fixed air conditioners and air-to-air heat pumps installed in homes as energy-saving materials, zero-rated until 31 March 2027 when we supply and fit them. If your installation qualifies, your quote shows 0% VAT and a lower price. Servicing, repairs, cleaning and controls are charged at 20%.
Working with your builder
First-fix work is about coordination, while the outdoor unit follows the normal planning rules for the property.
The survey
On a survey in County Durham the engineer looks at room size, glazing, the route for pipes and drains, the electrics and where the outdoor unit can sit quietly, then the written quote follows. The free survey is where the real price is set: room measurements, pipe and drain routes, electrical checks and the outdoor unit position, all written into your quote.
What is included
Included with air conditioning for new builds and renovations across County Durham:
- Design and setting-out with your builder
- First-fix pipework, drains and cables
- Nitrogen pressure test and labelled tails
- Vacuum, charge and commissioning
- Commissioning records for building control files
- Second-fix unit installation
Towns in County Durham
Pick your town for local details, or see every service in County Durham.