House Washing Wahroonga.

Exterior cleaning for Wahroonga’s heritage and multi-storey homes, from slate and terracotta roofs to sandstone and render. 

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$20 million public liability
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Plat Protection Protocol
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Certified to Work Safely at Heights
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Fixed Pricing, no surprises

House washing in Wahroonga starts with the house

House washing in Wahroonga starts with respect for what the homes are. Much of the suburb is made up of Federation, Arts and Crafts and interwar houses on large blocks, many inside heritage conservation areas. Face brick, sandstone footings, roughcast render, timber shingles and detailed joinery are common, with terracotta and slate roofs above. Many homes are two or three storeys, with high gables and dormer windows.

These materials are old and often original. Roughcast render holds dirt in its texture. Sandstone takes in water and grows dark algae at the base. Slate and terracotta last a long time, yet moss in the overlaps slowly lifts and loosens them. We test each surface first, then write one scope that treats the cause at the root with the lowest pressure that does the job.

Local conditions in Wahroonga that shape exterior cleaning

Large gardens and old trees

Streets like Burns Road, Water Street and Coonanbarra Road are lined with mature trees and deep, established gardens. Those gardens are part of what makes Wahroonga. They also shade walls, drop leaves on roofs and keep paths damp. Where hedges and climbers grow close to the house, moisture stays against the walls. Our Plant Protection Protocol matters here: greenery is pre-wet before treatment and rinsed after. Garden beds are mapped at the site assessment.

Height, access and heritage detail

Wahroonga homes are often tall, with steep roof pitches and fine detail that needs a careful hand. Our team is certified to work safely at heights, which covers upper storeys, gables and pitched roofs. Along the Pacific Highway near Knox Grammar and Abbotsleigh, as well as around Fox Valley Road and the Sydney Adventist Hospital, traffic also leaves a fine road film on front walls and fences. We clean both the growth and the grime, with a method set for each surface.

Driveways, paths and garden steps

Many Wahroonga properties have long brick or concrete driveways, paved paths and garden steps set under mature trees. Brick and sandstone paving holds moss and algae in the joints. Shaded steps turn slippery after rain. Leaf and berry stain from street trees marks pale concrete through autumn. We clean paving with pressure set for both the surface and the joints, so sand and mortar stay in place. Where paving is old or loose, we note it at the site assessment before any work starts. The grounds are then cleaned to the same standard as the house.

A recent job near

How the work is done

Prepared by Design

We inspect each surface, note materials, condition and aspect, and write a scope of what will be cleaned, how and why.

Protected by Design

Plants, paint, windows and fittings are covered or pre-wetted, and every treatment follows our Plant Protection Protocol.

Presented by Design

We finish with a walk-through and a Property Care Report, including a recommended re-service interval for your home.

Property Care Report

The person who assesses your property is the person who carries out the work.

Another surface, same care

What Wahroonga clients say

“
Professional, on time, and the results exceeded expectations. Our rendered walls haven't looked this good since the house was built. Highly recommend for pre-sale preparation.
★ ★ ★ ★ ★
Michael
Frenchs Forest
“
Clean by Design soft washed our house and driveway in St Ives. The team was professional and treated the property with real care. Results were outstanding. Would highly recommend to anyone looking for a reliable soft washing service.
★ ★ ★ ★ ★
Andrea
St Ives
“
Had Clean by Design do my mother in law's place at Frenchs Forest. Roof, house wash, driveway, patio, pool area and pergola. Good work and easy to deal with. Happy with the result.
★ ★ ★ ★ ★
Matthew
Frenchs Forest
“
The difference was immediately noticeable. The team was professional, thorough and clearly took care around our garden areas and the surrounding commercial properties.
★ ★ ★ ★ ★
Amy
Terrey Hills
“
Great service, very professional and the house looks like new. Highly recommend.
★ ★ ★ ★ ★
Rita
Sydney

Common questions about house washing in Wahroonga

Is soft washing suitable for heritage homes in Wahroonga?
Yes. Soft washing uses low pressure, which suits original brick, roughcast render, sandstone and painted timber. We test a small area first and set the method for each surface.
Yes. Our team is certified to work safely at heights. Where a roof or upper storey calls for scaffold, we arrange it and include it in the scope.
Most homes do well with a wash every 12 to 24 months. Homes with large gardens close to the walls, or heavy tree cover, often sit closer to 12 to 18 months. We confirm the interval at handover.
Greenery is pre-wet before treatment and rinsed after, under our Plant Protection Protocol. We map garden beds, hedges and climbers at the site assessment and plan the work around them.
Price depends on the size of the home, the number of storeys, roof pitch and material, access and how much growth has built up. We confirm it after a site assessment. Staining from oil, rust, efflorescence or paint needs a separate treatment assessment.

Request a site assessment in Wahroonga

Tell us about your Wahroonga home and what you would like cleaned. We will arrange a time to assess the property and confirm a scope that suits it.