If you’re building a new home in North Lakes, Griffin, Mango Hill, Narangba, Caboolture, or anywhere in Brisbane’s northern growth corridor, one of the most important decisions you’ll make — and one that’s easy to leave too late — is your air conditioning.
Most builders will offer a standard air conditioning inclusion, or suggest their preferred supplier. Before you tick that box, here’s what you actually need to know.
Why Timing Matters So Much
Installing ducted air conditioning during construction is dramatically cheaper than retrofitting it later. When your home is at frame stage — before plasterboard goes up and before ceiling linings are fixed — a qualified installer can run ductwork freely through the roof cavity without cutting into finished ceilings, patching walls, or working around obstacles.
The difference? Typically $2,000–$5,000 in installation costs, just from timing the job right. And the end result is cleaner, too — no patches, no access holes, just a seamlessly integrated system.
The ideal time to lock in your air conditioning contractor is before the frame stage, so they can liaise with your builder, review the plans, and be ready to move in as soon as the frame is up.
Don’t Just Go With the Builder’s Preferred Supplier
Builders often have preferred supplier agreements. Those suppliers may be perfectly good — but they may also be the most convenient option for the builder, not necessarily the best option for you.
Getting an independent quote before committing gives you:
- A genuine comparison on price
- An independent view on what system and zoning design best suits your home’s layout
- A technician whose loyalty is to you, not the building company
At JM Air, we work directly with homeowners building in Brisbane’s northern suburbs, reviewing plans before the slab is poured and designing systems that suit the home — not just the builder’s standard inclusion. Get in touch for a free consultation.
What to Ask Your Builder (and Your Aircon Contractor)
How many zones? A standard builder inclusion might include a basic 4–6 zone ducted system. Is that enough for your home’s layout? A 4-bedroom, 2-bathroom home might benefit from 6–7 zones to properly separate living areas, bedrooms, and activity rooms.
What brand? Builder inclusions often feature mid-range brands. That’s fine — but understand what you’re getting. If you want a premium system — we’re a proud Gree partner and install their full range — a custom quote may give you a better outcome than the builder’s standard inclusion.
Where does the outdoor unit go? This needs to be planned with the builder early. The outdoor compressor needs adequate clearance, preferably in a shaded spot on the south side of the home. Getting this wrong means reduced efficiency and a noisier system.
What controller? Basic zone controllers are functional but limited. A smart controller (compatible with phone apps, programmable scheduling, individual room temperature sensors) costs more upfront but adds significant comfort and efficiency.
Is the quote supply-and-install, or supply only? Some builder quotes include the unit only, with electrical work quoted separately. Always confirm what’s in the price.
North Lakes, Griffin, Mango Hill, Narangba — What We See in These Estates
The newer Brisbane North estates are largely double-storey homes on smaller blocks. That changes the ducted installation somewhat — more complex roof cavities, tighter ceiling spaces in some designs, and longer duct runs than you’d see in a typical single-storey home.
We’ve completed air conditioning installations across all of these areas and know what the common challenges are. Proper system design upfront — getting the capacity right, positioning the indoor unit correctly, planning the zone layout intelligently — prevents performance problems later.
The Cost of Getting It Right Now vs Fixing It Later
We regularly get calls from homeowners 2–3 years after moving into a new home with a ducted system that doesn’t perform well. Common issues include undersized systems that struggle on Brisbane summer days, poor zone layouts that leave some rooms warm while others are freezing, or outdoor units in poor positions that run inefficiently.
Fixing these problems after the fact is expensive — and sometimes requires a costly air conditioning service or repair callout just to diagnose the issue. Getting the design right before installation costs nothing extra — it just requires working with a contractor who takes the time to do it properly.
Ready to Talk About Your New Build?
JM Air & Refrigeration works with homeowners building across Brisbane North, Moreton Bay, North Lakes, Narangba, Caboolture, and surrounds. We review your plans, design the right system for your home’s layout and your family’s lifestyle, and work in with your builder’s timeline.
Call us on (07) 3132 3665 for a free consultation. The earlier we’re involved, the better the outcome.