New build and renovation air conditioning in Llanelli
First-fix pipework in Llanelli extensions goes in while the joists and studs are open. South Wales summers can be warm and humid, and winters damp, so a reversible system earns its keep all year.
For new Llanelli extensions with flat roofs, the outdoor unit position is best agreed against the architect's drawings. We cover Llanelli as part of Dyfed, roughly 13 miles from Carmarthen. That includes the SA15 postcode district.
Prices in Llanelli
Air conditioning for new builds and renovations in Llanelli typically comes in at £365–£795 per indoor position (first fix) including VAT, based on South and Mid Wales rates. It is a touch below the UK middle, as trade rates in South and Mid Wales tend to be. The biggest variables are the pipe route, access for the outdoor unit and the state of the consumer unit, all of which the survey settles. 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
Because the pipework is built into the structure, coordination with your builder matters more than planning here; the outdoor unit follows the same rules as any other installation.
The survey
We book surveys in Llanelli at a time that suits you, including early evenings by arrangement, and send the written quote afterwards. Surveys in Llanelli cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare.
What is included
What a job in Llanelli covers:
- Second-fix unit installation
- Vacuum, charge and commissioning
- Commissioning records for building control files
- Design and setting-out with your builder
- First-fix pipework, drains and cables
Nearby
We also cover Gorseinon (5 miles), Swansea (10 miles) and Ammanford (11 miles). See all services in Llanelli or new build and renovation air conditioning across Dyfed.