Preventive Roof Maintenance & High-Pressure Cleaning in Perth

Why Preventive Roof Maintenance Saves You Money

Your roof is exposed to Perth’s elements every single day — scorching summer heat, intense UV radiation, heavy winter rain, strong sea breezes, and the occasional hailstorm. Over time, this relentless exposure takes its toll on tiles, mortar, flashings, and metal components. Preventive maintenance catches minor issues before they become major repairs.

A small crack in a ridge cap that costs a few hundred dollars to re-point today can become a ceiling replacement costing thousands if left to leak through an entire winter. Regular maintenance extends the life of your roof, preserves your home’s value, and gives you peace of mind heading into each wet season.

We recommend that Perth homeowners have their roof professionally inspected and maintained at least once every two years, or annually for homes over 20 years old.

High-Pressure Roof Cleaning

Over the years, Perth roofs accumulate layers of dirt, algae, moss, and lichen. This biological growth is not just unsightly — it retains moisture against the tile surface, which accelerates the breakdown of concrete tiles and can work its way under overlapping tile edges, creating pathways for water ingress.

Our high-pressure roof cleaning service removes years of buildup and restores your roof’s appearance. The process involves:

• Pre-treatment — For heavy moss and lichen growth, we apply a biocide treatment to kill the root system before pressure washing. This prevents rapid regrowth.
• High-pressure washing — We use commercial-grade pressure washers calibrated to clean effectively without damaging tile surfaces. Water pressure is adjusted based on tile type and condition.
• Gutter flush — All debris washed from the roof into the gutters is cleaned out, and downpipes are flushed to ensure clear drainage.
• Post-wash inspection — Cleaning reveals the true condition of tiles, mortar, and flashings that were previously hidden under growth. We report any issues found.

High-pressure cleaning is particularly popular for Perth homes preparing for sale or those in shaded areas where moss thrives — suburbs near the river and in the hills districts often see the heaviest growth.

Moss and Lichen Removal

Perth’s winter moisture combined with shaded roof areas creates ideal conditions for moss and lichen colonisation. South-facing roof planes and sections shaded by trees are most affected. Beyond the aesthetic issue, moss and lichen cause real damage:

• They hold moisture against the tile surface, increasing the risk of frost damage in Perth’s occasional cold snaps
• Lichen produces mild acids that etch into concrete tile surfaces over time
• Moss roots penetrate into porous tile material, weakening its structure
• Heavy growth can lift tile edges and block water flow in valleys

Our treatment approach combines physical removal with chemical treatment to deliver lasting results.

Whirlybird Ventilation Installation

Adequate roof ventilation is essential in Perth’s hot climate. During summer, roof cavities can reach temperatures exceeding 70 degrees Celsius, which puts enormous thermal stress on tiles, timber framing, and insulation. This trapped heat also radiates down into your living spaces, increasing cooling costs.

Whirlybirds — also known as turbine vents — are wind-powered ventilators that spin with even light breezes to extract hot air from your roof cavity. Benefits include:

• Reduced ceiling temperatures by expelling hot air trapped in the cavity
• Lower air conditioning costs during Perth’s long, hot summers
• Moisture reduction in the roof cavity during winter, helping prevent condensation and mould
• Extended roof life by reducing thermal stress on tiles and timber

We install quality stainless steel and aluminium whirlybirds that are built to last in Perth’s conditions. The number of whirlybirds needed depends on your roof size, pitch, and existing ventilation. As a general guide, most Perth homes benefit from two to four units.

Eave Sheet (Soffit) Replacement

Eave sheets — the panels that close the underside of the roof overhang — are often made from compressed fibre cement or vinyl. Over time, these panels can crack, sag, develop holes, or even contain asbestos in pre-1990 Perth homes.

Damaged eave sheets allow birds, rodents, and possums to enter your roof cavity, where they cause noise, mess, and damage to insulation and wiring. We replace damaged eave sheets with modern fibre cement or vinyl panels that are weather-resistant and durable.

For homes with suspected asbestos eave sheets, we can arrange testing and licensed asbestos removal before fitting new panels.

Schedule Your Roof Maintenance

Do not wait for a leak to appear before thinking about your roof. Contact us to schedule a preventive maintenance visit for your Perth home. We will clean, inspect, and address any minor issues before they develop into expensive problems. Free quotes across the entire Perth metro area.