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Technician on a roof servicing an evaporative cooling unit

System type

Evaporative Cooling Blackwood Homes Run Through Dry Hills Summers

Evaporative cooling Blackwood homeowners ask about most is the roof-mounted unit that cools the whole house cheaply in dry heat, and Blackwood Air Conditioning installs, services and cleans them across the hills.

Technician checking the pads on a roof-mounted evaporative cooler

Evaporative Cooling Backed by a Family Team Working These Blackwood Streets Most Weeks

We are a local, family-owned business with ten years behind us, and Blackwood is regular work for our crews. Every job here is quoted upfront, with the price fixed before work starts.

Call (08) 8246 6297

How Evaporative Cooling Works

An evaporative unit sits on the roof and pulls outside air through water-soaked pads. The dry Adelaide air drops several degrees as it passes through, and a fan pushes that cooled air down ducts into every room.

No compressor, just a fan. There is no compressor working against refrigerant, only a fan and a small water pump, so the power draw stays a fraction of a refrigerated system.

Two things follow from the design:

Air keeps moving

The system pushes air through the house, so windows or vents stay open while it runs.

Dry air is the fuel

The drier the day, the bigger the temperature drop, which is why this technology belongs in Adelaide and not on a humid coast.
Call (08) 8246 6297
Technician crossing a tiled roof with a toolbox

Which Homes Suit Evaporative Cooling

Detached houses on larger blocks are the natural fit, and Blackwood is almost entirely that.

Post-war brick builds.

The 1940s to 1980s brick and brick-veneer homes behind the shopping village usually have the roof space and duct routes that make an evaporative install straightforward.

Older stone cottages.

Solid stone and brick homes near the five-ways can take one too, with the duct routes mapped before anything goes on the roof.

Leafy blocks.

Mature eucalypts that shade a house through summer also drop leaves into gutters and around the unit, which is worth knowing before you choose a roof position.

Core Aircon Services for Evaporative Units

Whatever stage your system is at, we cover it:

New installs

Full sizing, roof placement and ducting, quoted fixed before work starts.

Repairs

Faults diagnosed properly, from weak airflow to water feed failures, with air conditioning repairs booked day or night.

Replacement

Old units swapped for new, reusing ducting where it is sound, under our air conditioning replacement service.

Cleaning and servicing

Pads, water feeds, bleed-off and ducts, handled by our air conditioning cleaning crews each spring.

Cooling Running Costs Through an Adelaide Year

Evaporative cooling is the cheapest whole-house cooling to run in this climate, because the fan and pump draw a fraction of what a refrigerated compressor pulls. On a run of 40-degree days, that difference shows up on the summer bill.

A small water cost. The unit uses water as well as power across the season, though most hills households still come out well ahead on the summer bill.

The honest limits are worth stating plainly:

Humid days

Adelaide gets a handful each summer, and the unit loses its edge on those days.

Winter

An evaporative system does not warm the house. Hills winters are genuinely cold, so most households pair it with ducted gas heating or a reverse-cycle split system for the cold months.
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Evaporative Install Considerations

Every roof and every house shape changes the job, so we assess before quoting:

Roof position

The unit needs clear airflow and a spot that sheds leaf litter, not collects it.

Duct routes

Existing ducting from an old unit is inspected, because reusing sound ducting saves real money.

Water supply

The feed and bleed-off lines need to run cleanly, and slope blocks near the gullies can affect drainage paths.

Access

Steep foothills roofs and established gardens around homes near Shepherds Hill Road can change how the crew works, which we price in from the start.

Common Evaporative Cooling Problems

Most faults trace back to water or airflow. Watch for these:

Weak airflow

A duct has detached or the filter pads are blocked, which our repairs service sorts.

Warm air

The water feed has failed or the pads have scaled up, both covered on our air conditioner blowing warm air page.

Water dripping

A blocked bleed-off or overflowing trough, which needs attention before it damages the ceiling.

Smells

Stagnant water in the trough, fixed by a proper clean rather than a cover-up.
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Technician climbing to the roof with ducting laid out below

Why Choose Blackwood Air Conditioning

Local and family-owned.

Ten years operating, working these streets most weeks, from the cottages near St Peter's Lutheran School to the veneer builds up the hill.

Fixed Upfront Pricing.

Fixed quote before any work starts. No hourly rates, no bill shock.

Full ARC licence.

ARC Licence L162586, RAC01 - Full Refrigeration and Air Conditioning Licence, covering the refrigerant work on any paired refrigerated systems.

Lifetime Labour Warranty.

If a fault occurs due to workmanship, the team returns and fixes it at no cost.

How it works

Our Evaporative Cooling Process

  1. Step 1: First call

    Ring (08) 8246 6297, describe the house and any existing unit, and say what you want cooled.

  2. Step 2: Onsite assessment

    We check the roof, the ducting, the water supply and the airflow paths.

  3. Step 3: Fixed quote

    You get the price in writing before anyone books a crane.

  4. Step 4: Install and test

    The unit goes on, the water feed is balanced, and every vent is checked for flow.

  5. Step 5: Handover

    You get the running walkthrough, including how to set the windows for best cooling.

Fair Discounts on Every Job

New customers get $50 off first service, and a 10% pensioner discount applies for eligible households. Larger installs can go on Humm interest-free finance, which we can talk through when we quote.

Questions

Evaporative Cooling Questions From Hills Homeowners

Does evaporative cooling work on humid days?

It loses effectiveness on the handful of humid days Adelaide gets each summer, because the pads cannot cool air that already carries moisture. A refrigerated backup covers those days if you want one.

Do I need to open windows with evaporative cooling?

Yes, windows or vents need to stay open while it runs, because the system pushes air through the house and out again. That airflow is what makes it work.

How often should an evaporative unit be serviced?

Once a year, ideally in spring before the first hot spell, so the pads, water feed and bleed-off are all checked. Heavy tree cover can make a second visit worthwhile.

Can you replace an old evaporative unit on a 1960s house?

Yes, and the post-war brick builds around the railway station make straightforward swaps, because the roof mount and ducting routes are already in place from the old unit.

What covers winter warmth in a house with evaporative cooling?

An evaporative system cools only, so hills winters need a separate answer. Reverse-cycle split systems or ducted gas heating handle the cold months, and we quote both in one visit.

Talk to a local

Get Your Evaporative Cooling in Blackwood Sorted and Running Before Summer Arrives

Call (08) 8246 6297 and talk to the crew that works these streets most weeks. We will assess your roof, quote the job fixed and upfront, and have the system running before the first 40-degree day lands. 24/7 emergency availability is there if an existing unit fails mid-heatwave, and Within-the-Hour Response applies where availability allows.

Call (08) 8246 6297 Request a fixed quote

$50 off first service for new customers.

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