Split System Air Conditioning Installation and

Replacement | DB electrical

Split System Air Conditioning



Split systems are one of the most efficient ways to cool and heat individual rooms. If you are upgrading an old unit, adding air con to a bedroom or living area, or setting up a comfortable home office, DB Electrical can help with a clean,

professional split system installation.


At DB Electrical, we provide expert installation and replacement services across Brisbane.

Need split system air conditioning installed in Brisbane Northside? DB Electrical supplies and installs split systems, replaces old units, and handles electrical requirements for safe, reliable performance. Request a quote.


Split systems only


We specialise in split system air conditioners for homes and small commercial spaces. Split systems are ideal when you

want targeted comfort without the cost and disruption of ducted air conditioning.


Split system services we provide


We can help with:

·       Supply and install split system air conditioners

·       Installation of customer supplied units where suitable

·       Replacement of existing split systems

·       New circuits and electrical upgrades when required

·       Isolation switch installation and compliance checks

·       Fault finding for units that trip, leak, or do not cool properly

·       Advice on sizing, placement, and efficiency


Choosing the right size


Getting the size right matters. A unit that is too small will run constantly and struggle on hot days.

A unit that is too large can cycle on and off too often, which can feel uncomfortable and waste energy.


When recommending a unit size, we consider:

·       Room size and ceiling height

·       Insulation and sun exposure

·       How the space is used

·       The most practical position for the indoor and outdoor units


Placement that looks neat and performs well


A good install is about more than making it fit. We plan placement to support:

·       Even airflow across the room

·       Lower noise impact for bedrooms and quiet spaces

·       Tidy pipework routes and safe drainage

·       A sensible outdoor unit position for airflow and access


Electrical requirements


Many split systems need the right electrical supply to run safely and reliably. If a dedicated circuit,

upgraded protection, or extra switchboard capacity is needed, we will explain this upfront and walk you through the options.


Common split system issues we can fix


If your split system is not performing properly, we can troubleshoot issues such as:

·       The unit tripping the breaker or safety switch

·       Weak cooling or heating

·       Unusual noises or vibration

·       Water leaks or drainage problems

·       The outdoor unit not running consistently

If a safety switch keeps tripping, it is best not to keep resetting it. That is usually a sign something needs attention.


What to expect when you book DB Electrical


·       Clear advice and practical options

·       Neat installation with compliant workmanship

·       Help choosing the right unit size and placement

·       A tidy finish and respectful work in your home

Want a quote for a split system installation or replacement?

Call us or request a quote online.



Servicing Brisbane Northside and surrounding suburbs!



 📞 Call us now at 07 3889 7788



         Request a Quote | Request Booking



  • Q. Do you supply and install split system air conditioners?

    A. Yes. We can supply and install split systems, or install a unit you’ve already purchased (where suitable). We’ll make sure it’s positioned correctly, installed safely, and set up to run efficiently..

  • Q. What size split system do I need?

    A. It depends on the room size, ceiling height, insulation, window exposure and how the space is used. A system that’s too small will run constantly, and one that’s too large can short-cycle and feel less comfortable. We can recommend a size after a quick assessment.

  • Q. How long does a split system installation take?

    A. Most standard installs are completed in half a day. If the install needs tricky pipe runs, special access, or additional electrical work, it can take longer — we’ll explain the expected timeframe before we start.

  • Q. Can you replace an old unit with a new one?

    A. Absolutely. We can remove the old system and install a new one, and we’ll check that the electrical supply and circuit protection are suitable for the new unit.

  • Q. Does a split system need a dedicated circuit?

    A. Often, yes — especially for larger units. A dedicated circuit helps the air con run safely and reliably without nuisance tripping, and it ensures the protection devices match the load.

  • Q. Where’s the best place to install the indoor unit?

    A. Ideally, high on a wall where it can push air across the room without being blocked by doors, cupboards or curtains. We’ll also consider noise, drainage, and the best pathway to the outdoor unit to keep the install neat.

  • Q. Why is my air conditioner tripping the safety switch or breaker?

    A. Common causes include moisture, wiring faults, a failing compressor/fan motor, or an issue with the isolator or circuit protection. Because tripping is a safety warning, it’s best to stop using the unit and have it checked properly.