Air Conditioning Winston Hills

Ducted and split system air conditioning in Winston Hills and the Hills District - installed and serviced since 1991.

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(02) 9820 4500

Covering Winston Hills and the Hills District.
Mostly ducted replacements in brick homes - same systems that went in when the houses were built in the 70s and 80s.

Winston Hills is our regular run. The suburb sits on the border of Blacktown and Hills District and we cover both sides. Most of the ducted systems here are original installs - 15 to 25 years old and starting to show it. When the back bedrooms stay warm and the bills keep climbing, a replacement is nearly always the right call.

About Us
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30+ Years

Brick homes, mostly built late 1970s to early 1990s. Quarter-acre blocks with generous ceiling cavities - ideal for ducted. Some double-storey homes in the newer parts of the suburb.
About Us

Air Conditioning in Winston Hills

Winston Hills is established Hills District territory - mostly brick homes built between the late 1970s and early 1990s, on quarter-acre blocks with good-sized ceiling spaces. The suburb runs along the border of the Blacktown and Hills District council areas, and we cover both sides regularly.

The majority of ducted systems in Winston Hills are now 15 to 25 years old. They still run, but the compressor struggles to hit temperature on hot days, energy bills have crept up, and the back bedrooms are consistently the warmest rooms in the house. When those signs line up, a replacement system is nearly always the right call - and the new system will outperform the old one from day one.

What Size System Does a Winston Hills Home Need?

For a typical 4-bedroom Winston Hills brick home you're looking at a 10 to 12kW ducted system with 5 or 6 zones. Double-storey homes or those with a lot of west-facing glass often need 14kW to handle the load properly. An undersized system will run flat out and never quite reach set temperature. A correctly sized one hits temperature and cycles off - which is how it should work. Use our ducted cost calculator to get a realistic price range before you call us.

Split systems are common in Winston Hills too - in older homes where extending ducted isn't practical, in granny flats, or as a top-up for rooms the ducted doesn't quite reach. Our online split quote tool gives a fixed price in a few minutes. If you're unsure what size you need, our sizing calculator accounts for ceiling height, insulation and window orientation.

We cover Winston Hills and nearby Seven Hills, Baulkham Hills, Blacktown, and Pennant Hills.

Ducted Air Conditioning in Winston Hills

Winston Hills has more ducted systems than most suburbs its size - they came standard in the brick homes that went up here in the 70s and 80s. Most are now at the end of their useful life. We replace them with efficient modern systems that cool the whole house properly, use less power, and come with a 5-year parts warranty. If yours is getting noisy or struggling on hot days, it's worth a quote. One day, done.

Why Winston Hills Calls Jay's

Jay's Air Conditioning has been covering Winston Hills since the early 1990s. The homes here are our bread and butter - large brick family homes with ceiling spaces built for ducted, systems that were installed when the houses were new and haven't been touched since. We know the suburb well and we're in it most weeks.

Fixed Prices. No Day-Rate Surprises.

Every ducted replacement we quote in Winston Hills is a fixed price. That means the number we give you upfront is the number on the invoice. No hourly rates, no call-out fees added after the fact, no charge for longer-than-expected installs. We've found it's the only way to build trust with customers who've been burned by variable pricing before.

Mick Daly runs our Hills District install team and has been with Jay's since 2009. He knows which houses in Winston Hills have tight ceiling access, which ones have the old 3-phase power setup that affects system selection, and which zones consistently run hot. That knowledge makes a real difference to how the job gets quoted and how it gets done.

We're fully licensed - NSW Contractor Licence 273312C, ARCtick AU13058 - and we carry public liability and workers comp on every job. We operate Monday to Friday 7am to 5pm, with Saturday work by arrangement. If something goes wrong after installation, we come back. That's just how we operate.

Book a Quote in Winston Hills

Most quotes take about 20 minutes on site. We check the ceiling space, measure the rooms, assess the power supply and give you a fixed price on the spot. No back-and-forth, no surprises. Book via the form on site or give us a call and we'll get something in the diary.

Before you commit to anything, use our how it works page to understand the process, or read why customers choose Jay's Air Conditioning over the bigger operators. We're a family business, not a franchise - and that matters when it comes to accountability.

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Typical jobs

Typical jobs by Jay's Air Conditioning in Winston Hills

Mick Daly - lead ducted air conditioning installer at Jay's Air, smiling headshot
Ben - air conditioning technician at Jay's Air, smiling headshot in company uniform
Noah Hall - air conditioning installer and technician at Jay's Air, smiling headshot

Ducted Replacement - Winston Hills

Problem

The owners called after getting two quotes at very different prices with no explanation. Their 2001 Carrier 10kW ducted system was running flat out and never cooling the back of the house. They wanted a third opinion before committing.

Diagnosis

Original unit was undersized - 8kW in a house extended twice. Replaced with a 12kW Daikin 6-zone system. Fixed price $6,200, fully commissioned the same day.

Refrigerant Leak Repair - Winston Hills

Problem

A 5-year-old split system in the master bedroom had stopped cooling. The owner assumed it needed a regas and had ordered a DIY kit online before calling us.

Diagnosis

Pinhole leak at the flare fitting on the indoor unit - a known failure point on this model. Repaired the fitting, pressure tested and recharged with 750g of R32. Cost $480. The DIY kit would not have found or fixed the leak.

Multi-Split Install - Winston Hills

Problem

Two west-facing bedrooms were consistently hot in the afternoon. The existing ducted system couldn't keep up with the load on that side of the house after lunch.

Diagnosis

Installed two Mitsubishi 2.5kW wall units on a single outdoor head to supplement the ducted. Total cost $2,850. Bedroom temps dropped around 5 degrees on hot afternoons.

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Air Conditioning FAQs - Winston Hills

Frequently Asked Questions

Air Conditioning FAQs - Winston Hills

A standard 4-bedroom Winston Hills brick home typically needs a 10-12kW system with 5-6 zones. Expect $5,800 to $8,500 depending on system size and zone count. Jay’s Air Conditioning quotes are fixed price – the number we give you is the number on the invoice.

For most 20-year-old systems in Winston Hills, replacement is the better call. Parts are hard to source, repair costs stack up, and a new system uses significantly less electricity. Get it assessed first so you know what you’re working with.

A full ducted replacement in a standard Winston Hills home takes one day. Mick’s Hills District team disconnects the old system, installs the new one and commissions it in a single visit. Working system the same day.

Jay’s Air Conditioning has been servicing Winston Hills since 1991. We hold NSW Contractor Licence 273312C and ARCtick AU13058, carry full public liability and workers comp, and quote fixed prices with no call-out fees. Rated 4.8 stars from 280 Google reviews.

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What we do

Our Expertise

Whether you're replacing a 25-year-old ducted system or adding a split to a room the ducted doesn't reach, Jay's Air Conditioning handles it. We cover Winston Hills year-round.

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Resources

Air Conditioning Advice for Winston Hills Homeowners

The brick construction in Winston Hills holds heat differently to weatherboard or double-brick. Ducted systems sized for the original footprint often underperform after extensions. Factor in the new load before you lock in a system size. We've been quoting and installing in Winston Hills for over 30 years. Get the system sized for the house as it is today, not as it was when it was built.