
4-zone ducted retrofit, 1930s Queenslander
Tight roof space and no existing ducting. Designed around a central return, four zones, and a condenser tucked under the back deck to keep it off the street frontage. Two days on site.
Brisbane · Northside · Southside · Bayside
Split system and ducted installation, repairs and servicing across Brisbane. Fixed quotes, licensed installers, and a five-year warranty on every install we do.

We size the system to your room before we quote it. An undersized unit is the single most common reason a Brisbane aircon never keeps up.
What we do
Every service has its own page, with what it covers, what it costs and the questions we get asked about it most.

Single rooms and whole homes. Sized properly, installed same week.
From $2,190Read more
Whole-home ducted and zoned systems, retrofitted or in a new build.
From $9,800Read more
Not cooling, leaking water, error codes, ice on the pipes — 7 days.
From $139Read more
Annual clean and service, plus maintenance plans for homes and offices.
From $189Read more
Several rooms, one outdoor unit — for homes where space or rules are tight.
From $5,400Read more
Offices, cafés, childcare and retail — installs, service contracts, after-hours.
Read moreWhy us
Every install starts with someone in your house measuring the room, the glass and the insulation. Quoting a kilowatt rating off a floor plan is how people end up with a unit that runs all day and never catches up.
ARCtick for the refrigerant, QBCC for the building work, and our own electrical licence for the switchboard. No subcontracting the electrical to whoever is free that week.
On top of the manufacturer's warranty on the equipment. Most installation faults show up in the first two summers — ours are covered for five.
Reviews
4.8 out of 5 from 386 reviews. These come straight from our Google Business Profile — we don't write them and we can't edit them.
Four quotes for ducted in a 1930s Queenslander. Coastline were the only ones who went up into the roof before quoting, and the only ones who explained why the zoning should be four and not seven. Installed over two days, spotless, and the house is a different place in February.
Unit died on the hottest weekend of the year. Rang at 7pm on a Saturday expecting a message bank, got a technician on site Sunday morning. Blocked drain and a failed capacitor, fixed on the spot, and he showed me how to flush the drain myself.
Another company quoted a 5kW for my bedroom. Coastline measured it, said 3.5kW was right, and quoted $600 less. It's been perfect all summer. Appreciated not being upsold.
Apartment install with a very fussy body corporate. They did all the paperwork and drawings, which saved me weeks. Took longer than first estimated because of the approval, but they kept me posted the whole way.
Been using them for the service on three splits for six years now. Same two blokes most years, always on time, always leave a written report. The musty smell we used to get every November is just gone.
We run a café and a failure in January would cost us the week. They service the cassettes twice a year and picked up a failing fan motor in the report before it ever went down. That's the whole value right there.
Areas we cover
One page for every area we serve, with the response times you can actually expect from us there.
Recent work

Tight roof space and no existing ducting. Designed around a central return, four zones, and a condenser tucked under the back deck to keep it off the street frontage. Two days on site.

Body corporate permitted exactly one condenser position. Five heads off a single outdoor unit with concealed runs through the ceiling void. Approval documentation prepared and lodged by us.

Two failing cassettes in a trading café. Replaced overnight on a Tuesday, tested and handed back at 5am. The café did not lose a single trading hour.
Get in touch
We size the system to your room before we quote it. An undersized unit is the single most common reason a Brisbane aircon never keeps up.
We come out, measure the room and quote a fixed price in writing. Free, no obligation.
Ducted and multi-head systems are a real outlay. Interest-free payment plans are available on installations over $2,000, applied for online in a few minutes.
Questions
ARCtick AU41882 for refrigerant handling, QBCC 15084417 for the mechanical services work, and QLD electrical contractor licence EC 78421. All three matter in Queensland and we hold all three in-house.
Yes. We quote after seeing the job, in writing, valid 60 days. The only thing that changes a fixed quote is you changing the scope — and we would put that in writing too.
Usually within the week outside peak season. From late November the lead time stretches, which is exactly why we tell people to book in September.
Daikin, Mitsubishi Electric, Fujitsu, Panasonic and ActronAir. We are not tied to one manufacturer, so the recommendation is about your room rather than our stock.
Yes — decommissioned, degassed to regulation and removed, included in the price. Refrigerant cannot legally be vented and we hold the licence to recover it properly.
Interest-free terms are available on installations over $2,000. Application is online and takes a few minutes.
Breakdown line open 7 days until 9pm through the summer. Serving Inner South Brisbane, New Farm & Inner North, North Brisbane and the surrounding area.