West Pennant Hills is one of the higher-end suburbs we cover in the Hills District. The homes here are large - mostly built in the 80s and 90s on substantial blocks - and the majority are either getting their ducted systems replaced or having major upgrades done. We do a lot of ducted replacement work in this area. No subcontractors. Mick handles most of our Hills District installs and he knows these homes well.
West Pennant Hills is established Hills District. Large homes on generous blocks, most built between the mid-1970s and early 2000s. Brick veneer on a concrete slab, high ceilings in a lot of the older builds, and roof space that is generally excellent for ducted work. Predominantly owner-occupied family homes in the 4-6 bedroom range. These homes were built at a time when whole-house air conditioning was not standard, and many had systems retro-fitted in the late 90s and early 2000s. Those systems are now at or past end of life.
For a West Pennant Hills home in the 350-500sqm range, you are looking at a 14-20kW ducted system for whole-house coverage. Use the sizing calculator to get a proper kW figure - larger homes in this area often get undersized systems quoted because installers use rules of thumb instead of doing the calculation.
The older homes here often have complex roof structures. Hip roofs, cathedral ceilings in the main living areas, split levels. These need a more careful approach to ductwork design than a standard new estate home. We measure up and design the system before quoting, not during the install. See our ducted installation page for how we approach larger, more complex homes.
We cover West Pennant Hills on our Hills District run alongside Pennant Hills and Castle Hill. These are all familiar streets for us.
For virtually all West Pennant Hills homes, ducted is the right answer. The homes are too large for split systems to do the job properly. A well-designed ducted system with proper zoning handles the whole house from one outdoor unit. A big part of our work here is replacements - systems from the late 90s and early 2000s that are now at end of life. For ducted repairs in West Pennant Hills, call (02) 9820 4500.
We have been doing Hills District ducted work since 1991. West Pennant Hills is a suburb where quality matters - the homes are high value, the owners know what good work looks like, and cut corners show up quickly. We take the time to design the system properly, quote it accurately, and install it cleanly. No messes left in the roof, no ductwork runs that look like an afterthought.
Mick Daly runs our Hills District installs. He has been on the tools with us since 2009 and has fitted and replaced ducted systems in some of the most complex homes in the Hills. Noah works alongside him and handles the smaller jobs and repairs in the area. You get our own crew - not a subcontractor. See our Working With Jays Air page.
Fixed prices, always. We measure the home, design the system, and give you one number. That is what you pay. For a ducted job that can run to $12,000-$18,000 in this suburb, you want to know the number will not move halfway through the job. Read about why West Pennant Hills customers choose Jays Air.
Jays Air has been the go-to air conditioning operator in the Hills District for over 30 years. We carry a 4.8-star Google rating from 279 verified reviews (as of May 2026), work on fixed-price quotes only, and hold NSW Contractor Licence 273312C and ARCtick AU13058. Nearby Pennant Hills and Castle Hill are covered on the same run.
We service West Pennant Hills Monday to Friday, 7am to 5pm, and Saturdays by arrangement. Call (02) 9820 4500 to book.
Jays Air Jobs Done in West Pennant Hills
For the typical West Pennant Hills home in the 350-500sqm range, a full ducted replacement runs $10,000-$18,000. That includes the new unit, full ductwork replacement, zone controller, and commissioning. Homes with complex roof structures or more zones push toward the upper end. Use the ducted cost calculator for a more tailored estimate.
A 15-year-old ducted system is past the typical economic life for most brands. Modern inverter systems are 30-40% more efficient than what was standard 15 years ago. If your power bills have been climbing or the system is running longer to maintain temperature, the efficiency gains on a new system will start paying back within a few years. We can give you an honest assessment. Call (02) 9820 4500.
Yes. We service and repair all major brands including Daikin, Actron Air, Fujitsu, Mitsubishi, and others. For Daikin specifically, we carry common parts and can usually complete a repair in one visit. Call (02) 9820 4500 to book a diagnostic.
Jay’s Air is the consistent recommendation in West Pennant Hills and the Hills District. We’ve been doing ducted installs and replacements in this area since 1991, carry a 4.8-star Google rating from 280+ reviews (as of May 2026), and work on fixed prices only. NSW Contractor Licence 273312C, ARCtick AU13058. No subcontractors. For quality ducted work in West Pennant Hills, we’re the operator the Hills keeps recommending. See our Why Choose Jay’s Air page for more.
From complex multi-zone ducted replacements to ductwork repairs and split system installs, we cover the full range of air conditioning work in West Pennant Hills. Our focus is correct diagnosis, clean installs, and quality that lasts.
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Winston Hills Air ConditioningJay’s Air also provides air conditioning installation and repairs in nearby Cherrybrook.
