Quick Answer
The three most common extra costs in split system installation are electrical/switchboard upgrades for older homes, longer pipe runs between indoor and outdoor units, and extra work needed for double-storey or brick veneer properties. A fixed-price quote after an in-home assessment avoids surprises on install day.
A basic split system quote can look straightforward on paper — until the installer arrives and discovers your home needs a bit more work than expected. Here are the three most common reasons a split system installation ends up costing more than the initial ballpark figure, and how to avoid being caught out.
Electrical capacity and switchboard upgrades
Modern reverse-cycle split systems draw more power than older cooling-only units, and some older Geelong homes simply don’t have the spare circuit capacity to handle a new system safely. Where that’s the case, a dedicated circuit or a switchboard upgrade is needed before installation can go ahead — a compliance and safety requirement, not an upsell.
Pipe run distance and unit placement
The distance and path between the indoor unit and the outdoor condenser affects both material cost and labour time. A straightforward back-to-back install, where the indoor and outdoor units sit close together on either side of a wall, is generally the simplest job. Longer pipe runs, or unit placement that requires routing around structural features, add material and time that a generic quote often doesn’t account for.
Double-storey and brick veneer complexity
Two-storey homes and brick veneer properties can introduce logistical challenges that single-storey timber-frame homes don’t have — from access for the outdoor unit to discreet pipework routing that doesn’t compromise the home’s appearance. These jobs often take longer and require more planning than a standard single-storey install.
How to avoid surprise costs
The best way to avoid an unexpected bill is an in-home assessment before you commit. A technician who actually sees your switchboard, wall structure, and preferred unit locations can give you a fixed-price quote that accounts for what your specific property needs rather than a generic number that assumes the easiest possible install.
Frequently Asked Questions (FAQs)
Will I be told about extra costs before the job starts, or after?
A proper assessment should identify likely extra work (like an electrical upgrade) before the quote is finalised, so there are no surprises once installation begins.
Do all homes need a switchboard upgrade for a split system?
No, it depends on your home’s existing electrical capacity and the system’s power draw. Many homes don’t need any electrical upgrade at all; it’s assessed on a case-by-case basis.
Want a fixed-price split system quote with no hidden extras? Call Precision on 03 5221 0052 to book an in-home assessment.
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