Specialist pressure cleaning
Deep clean your heat pump — restore it properly
A professionally cleaned heat pump runs more efficiently, uses less power, and produces cleaner air. We use specialist pressure cleaning equipment designed specifically for heat pump coils — not a garden hose.
Our approach
Specialist equipment makes the difference
Most cleaning services use brushes, vacuum cleaners, and standard pressure washers. The problem is that heat pump coils have delicate aluminium fins that bend easily — standard pressure can damage them while still leaving deep-set grime behind.
We use purpose-built pressure cleaning equipment designed specifically for heat pump coils. It reaches deep into the coil structure that other methods can't access, removes years of buildup, and does it without causing damage to the fins or surrounding components.
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Removes buildup standard methods leave behind
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Safe pressure levels — won't bend or damage fins
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Restores efficiency lost to years of accumulation
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All contaminated water contained and disposed of properly
Standard clean vs specialist clean
Standard clean
✗ Filters wiped down
✗ Outer casing wiped
✗ Surface grime removed
✗ Coil buildup remains
✗ Deep mould left behind
✗ No performance test
Our specialist clean
✓ Filters deep cleaned
✓ Full unit cleaned
✓ Surface grime removed
✓ Coils pressure cleaned
✓ Mould eliminated
✓ Performance verified
What's included
Indoor and outdoor — the full clean
We clean both units as standard. Here's exactly what we do.
Indoor unit
The unit inside your home
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Specialist pressure clean of evaporator coils✓
Deep clean and disinfect all internal surfaces✓
Mould removal from fan blades and housing✓
Clean and rinse filters✓
Clean outer casing and vents✓
Flush and check condensate drain✓
Test heating and cooling performance after cleanOutdoor unit
The compressor unit outside
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Specialist pressure clean of condenser coils✓
Remove debris, leaves, and obstructions✓
Clean fan blades and motor housing✓
Clean outer casing✓
Visual inspection of electrical connections✓
Check airflow clearance around unit✓
Performance check on completionIs it time?
Signs your heat pump needs a clean
Most units benefit from a professional clean every 1–2 years. These signs suggest it's overdue.
Higher power bills
A clogged heat pump works harder to produce the same output. Dirty coils are one of the most common causes of rising running costs.
Reduced heating or cooling
Unit running but not reaching temperature. Blocked coils restrict heat transfer — a clean often restores full performance without any repairs needed.
Musty or stale smell
Odours when the unit starts up are a strong indicator of mould or bacteria buildup inside the unit. A deep clean eliminates the source.
Visible dust or mould
Dust around the vents or visible mould near air outlets means what's inside is worse. These are the parts you can see — the coils behind them accumulate even more.
Unusual noises
Rattling, gurgling, or reduced airflow noises can be caused by debris buildup on the fan or blocked drainage. Often resolved with a clean.
More than 2 years since last clean
Even if your unit seems fine, coil buildup happens gradually. A clean at this point is preventive — cheaper than dealing with the problems that follow.
Why professional matters
Why DIY cleaning can cause more harm than good
Heat pump coils are not forgiving. Here's what can go wrong.
Bent fins are expensive
The aluminium fins on heat pump coils bend easily under incorrect pressure. Once bent, airflow is permanently restricted and the fins can't simply be straightened without specialist tools. Replacing damaged coils is costly.
Water and electrics don't mix
Heat pumps have electrical components that need to be properly isolated before any water is applied. Without the right training, you risk short circuits, component failure, or voiding your warranty.
Wrong chemicals cause damage
Using the wrong cleaning agents on heat pump coils corrodes the aluminium fins and copper tubing. We use cleaning products specified for heat pump use — not household cleaners or generic degreasers.
Common questions
Cleaning FAQ
The questions we get asked most often about heat pump cleaning.
How long does a cleaning take?
A single indoor and outdoor unit typically takes 1.5–2.5 hours. We don't rush it — getting the coils properly clean takes time, and the performance test at the end confirms the job has actually made a difference.
Can't I just clean the filters myself?
Yes, and you should — rinsing your filters monthly during peak use is good practice. But filters only catch surface-level particles. The grime that reduces efficiency builds up on the coils behind the filters, which require specialist equipment to clean properly.
How often should I have it professionally cleaned?
Every 1–2 years for most homes. More frequently if you have pets, run the unit year-round, or anyone in the household has allergies or respiratory conditions. We'll advise based on what we find during the clean.
Do you clean heat pumps installed by other companies?
Yes — we clean all major brands regardless of who installed them. Your heat pump just needs the right equipment and technique, not a particular installer.
What happens to the dirty water?
We contain all contaminated water during the clean and dispose of it responsibly. We never wash contaminants into stormwater drains or leave mess in your home.
Is cleaning the same as servicing?
A clean focuses on removing dirt and buildup from the coils and components. A full service includes the clean plus refrigerant level checks, electrical inspections, and a written condition report. We offer both — view our servicing page for details.
Brands we clean
All major brands
We clean every major brand sold in New Zealand using the same specialist equipment and technique.
Accredited brands
Mitsubishi Electric
Daikin
Panasonic
Also cleaned
Fujitsu
Samsung
LG
Hitachi
Toshiba
Haier
Gree
Carrier