Air Conditioning in Gladstone, Done Properly
Split system and ducted installation, servicing and repairs — sized for Central Queensland humidity and specified to survive coastal salt air. ARC Tick certified, with the electrical work handled by the same team.
Installation, servicing and repairs — all four covered.
Whether it's a single bedroom split, a full ducted retrofit, an annual service or a system that stopped cooling on the hottest week of the year, it's the same licensed team from first call to compliance certificate.
Split System Installation
Supply and install of wall-mounted split systems for bedrooms, living areas, offices and shops. We run the dedicated circuit ourselves, so there's no second contractor and no second call-out fee.
- Back-to-back and extended pipe runs
- Multi-head systems for multiple rooms
- Dedicated circuit & switchboard work included
Ducted Air Conditioning
Whole-home and commercial ducted systems, designed around your floor plan and zoning needs. Ceiling space, duct routing and return air are assessed on site before we quote anything.
- Zoned residential ducted systems
- Commercial and office installations
- Full design, install and commissioning
Servicing & Maintenance
Scheduled servicing that keeps efficiency up, power bills down and warranties valid. Filters, coils, drains, refrigerant charge and electrical connections all checked and reported.
- Annual residential servicing
- Six-monthly for coastal & commercial
- Written performance report
Repairs & Fault Finding
Not cooling, leaking water, tripping the breaker, throwing error codes or making noise it shouldn't. We diagnose properly and tell you honestly whether repair or replacement is the better spend.
- Systematic fault diagnosis
- Refrigerant leak detection
- Straight repair-vs-replace advice
Most AC problems start at installation, not at year five.
Undersized units, pipe runs longer than the manufacturer allows, outdoor units baking in western sun, no dedicated circuit, condensate drains falling the wrong way. We get called out to fix all of these — usually on systems installed by someone else two summers earlier.
- Sized on load, not floor areaWe factor ceiling height, insulation, glazing, orientation and occupancy — the difference between a system that cycles properly and one that runs flat out all summer.
- Coastal-spec equipmentFor Tannum Sands, Boyne Island, Agnes Water and Seventeen Seventy we recommend coated coils and salt-conscious unit placement.
- Electrical done in-houseLicence 87731. If your switchboard needs upgrading to support the unit, we identify it at quote stage and do it in the same visit.
- Warranty protectedInstalled to manufacturer specification and documented, so a future warranty claim doesn't get knocked back on installation grounds.
Air conditioning installation and service in Gladstone, QLD
Gladstone summers are long, humid and unforgiving. Between November and March, air conditioning stops being a comfort item and becomes the thing that determines whether your home is liveable and your business is somewhere customers want to be. Davey Service & Maintenance QLD has installed, serviced and repaired air conditioning across this region for almost 30 years — for houses in Gladstone and Calliope, coastal properties at Tannum Sands and Agnes Water, and commercial sites from CBD retail through to industrial facilities.
We're ARC Tick certified under trading authorisation AU53529 and hold Queensland Electrical Contractor Licence 87731. That combination matters more than it sounds. Every air conditioning installation involves refrigerant work that legally requires ARC certification, and electrical work that legally requires an electrical licence. Companies holding only one of those subcontract the other — which is where delays, finger-pointing and surprise costs come from. We do both.
Choosing between split system and ducted air conditioning
This is the first decision most people face, and the honest answer depends on how you actually live in the house rather than which is objectively "better".
Split systems make sense when you need to condition one or two rooms, want the lowest upfront cost, or are retrofitting an older Gladstone home without usable roof space. They're efficient when used to cool the room you're in, and if one unit fails the rest of the house is unaffected. The trade-off is a wall unit in every conditioned room and an outdoor unit for each head on single-split configurations.
Ducted systems make sense when you want the whole house comfortable, prefer the clean look of ceiling vents, and want zoning so you're not cooling four empty bedrooms overnight. The upfront cost is higher and it requires adequate roof or ceiling space, but across a whole home a well-zoned ducted system typically beats running five separate splits — both on comfort and on running cost.
| Room size | Typical capacity | Suits |
|---|---|---|
| Up to 20m² | 2.5kW | Bedroom, study, small office |
| 20–30m² | 3.5kW | Master bedroom, small living area |
| 30–45m² | 5.0–6.0kW | Living room, open-plan kitchen/dining |
| 45–65m² | 7.0–8.0kW | Large open-plan living, small retail space |
| 65m²+ | Ducted or multi-head | Whole home, commercial premises |
Guide only. Ceiling height, insulation, window orientation, glazing and occupancy all change the required capacity — which is why we assess on site before quoting.
What air conditioning installation costs in Gladstone
A straightforward back-to-back split system installation — where the indoor and outdoor units sit on opposite sides of the same wall — generally starts around $700 to $900 in installation labour. Costs increase with longer pipe runs, upper-storey or difficult-access mounting, multi-head configurations, and any electrical work needed to provide a compliant dedicated circuit.
Ducted systems vary far too widely for a meaningful headline figure. Duct routing, the number of zones, ceiling access, return air positioning and the capacity of the outdoor unit all shift the number substantially. We quote ducted only after an on-site assessment, because a phone quote on a ducted system is a guess dressed up as a price.
What we won't do: quote a price over the phone that we revise upward once we're on site. Every DSMQ job is quoted in writing and itemised before we start, and the figure you approve is the figure you're invoiced.
Why Gladstone systems fail earlier than they should
Three local factors shorten equipment life here more than in most of Australia, and they're worth understanding before you buy.
- Coastal salt air. Properties near the water at Tannum Sands, Boyne Island, Agnes Water and Seventeen Seventy expose condenser coils to constant salt. Standard aluminium fins corrode, efficiency drops, and units fail years early. Coated coils cost modestly more and routinely add years of life.
- Industrial dust. Gladstone's industrial footprint means filters and coils load faster than manufacturer service intervals assume. A "12 month" filter often needs attention at six.
- Humidity load. A system sized purely on floor area will run continuously in February without properly dehumidifying. That's high bills, poor comfort and a compressor working far harder than it was designed to.
Servicing: what it actually involves
We recommend a professional service every 12 months for residential systems, and every six months for commercial systems or any unit within a few kilometres of the coast. A DSMQ service covers filter cleaning or replacement, indoor and outdoor coil cleaning, condensate drain clearing and fall check, refrigerant charge and pressure testing, electrical connection and capacitor checks, thermostat calibration, and a performance report on what we found.
Between services, cleaning your own filters every one to three months during heavy use is the single highest-value thing you can do. A blocked filter is the most common cause of "it's not cooling like it used to" call-outs, and it's a five-minute job.
Common faults and what they usually mean
- Not cooling properly — usually a dirty filter or fouled outdoor coil, low refrigerant from a leak, or a system undersized at installation.
- Water dripping inside — a blocked or incorrectly fallen condensate drain, or ice forming on the indoor coil from restricted airflow.
- Tripping the circuit breaker — a failing capacitor or compressor, or a unit sharing a circuit it should never have shared. Common on installations that skipped the dedicated circuit.
- Error codes on the remote — manufacturer-specific, but generally sensor, communication or pressure faults. We diagnose against the manufacturer's fault table rather than guessing.
- Noisy operation — worn fan bearings, loose mounting, or debris in the outdoor unit.
When a repair estimate approaches a meaningful share of replacement cost on an older system, we say so. Sinking $1,200 into a 14-year-old unit running an obsolete refrigerant is rarely the right call, and we'd rather tell you that than take the repair work.
Air conditioning across the Gladstone region
We install and service air conditioning throughout Gladstone, Calliope, Boyne Island, Tannum Sands, Beecher, Mount Larcom, Biloela, Agnes Water, Seventeen Seventy and Rockhampton. Coastal locations get coastal-spec recommendations. Rural and inland properties around Biloela and the Banana Shire get systems specified for higher dry-season temperature swings. Commercial clients can put scheduled servicing on a maintenance contract so it's handled without anyone having to remember it.
Air conditioning FAQs
How much does air conditioning installation cost in Gladstone?
A standard back-to-back split system installation generally starts around $700 to $900 in installation labour. The final cost depends on unit capacity, pipe run length, whether a new dedicated circuit or switchboard work is required, and access difficulty at the mounting position.
Ducted systems are quoted after an on-site assessment because duct routing, zoning and ceiling access change the figure substantially. Every job is quoted in writing before work starts.
What size air conditioner do I need?
As a starting guide in the Gladstone climate: 2.5kW for a 20m² bedroom, 3.5kW for a 30m² living area, 5–6kW for a 45m² open-plan space, and 7–8kW or ducted above 65m².
These are starting points only. Ceiling height, insulation quality, window orientation and how many people use the room all change the requirement, which is why we assess on site rather than quoting from floor area.
How often should air conditioning be serviced in Central Queensland?
Every 12 months for residential systems, and every six months for commercial systems or any unit within a few kilometres of the coast. Gladstone's salt air and industrial dust load filters and corrode coils faster than most manufacturer service intervals assume. Owners should also clean filters every one to three months during heavy use.
Why is my air conditioner not cooling properly?
The most common causes are a blocked filter restricting airflow, a fouled outdoor condenser coil, low refrigerant from a leak, a failing capacitor or compressor, or a system that was undersized for the space at installation.
Check the filter yourself first. Anything involving refrigerant must legally be handled by an ARC certified technician.
Should I choose split system or ducted?
Split systems suit one or two rooms, lower upfront budgets, and retrofits without roof space. Ducted suits whole-home comfort, a clean look with no wall units, and zoning so you only condition rooms in use.
Ducted costs more upfront but across a whole house is usually more efficient than running four or five separate splits.
Do you install in coastal areas like Tannum Sands and Agnes Water?
Yes, and we specify differently for those installations. Salt-laden air corrodes standard condenser coils quickly. For coastal properties we recommend units with coated or treated coils and position outdoor units to reduce direct salt exposure where the site allows. It adds a modest amount at installation and typically adds years of service life.
Do you handle the electrical work as well?
Yes. We hold Queensland Electrical Contractor Licence 87731 in-house, so dedicated circuits, isolation switches and any required switchboard upgrades are completed by the same team on the same visit. You won't be waiting on a separate electrician to finish the job.
Get your air conditioning sorted before summer hits.
Free on-site assessments and written quotes across Gladstone, Calliope, Boyne Island, Tannum Sands, Biloela, Agnes Water and Rockhampton.
Monday–Friday, 7:00am–5:00pm · After-hours emergency call-outs available