Previously known as Brent Quilliam Stonemason
STONE CLEANING SPECIALISTS
Specialist Stone Cleaning Services for Heritage Homes & Buildings in South Australia
At A.R.C. Stonemasonry, we specialise in the professional cleaning and restoration of stone homes, walls, heritage buildings and monuments in Adelaide and all surrounding areas. Whether you're a homeowner, builder, or council representative, we have the experience, technology, and skills to clean delicate stone surfaces safely and effectively — preserving their beauty and structural integrity.
Only SA Provider of ThermaTech Technology
Only SA Provider of ThermaTech Technology
Only SA Provider of ThermaTech Technology
We use an advanced low-pressure, superheated water system to gently lift away decades of dirt, biological growth, and pollution from stone surfaces. This process avoids harsh chemicals or abrasive blasting — making it ideal for heritage sites and soft stone. We use the ThermaTech system purposely made for delicate, historic surfaces — and we’re proud to be the only company in South Australia offering this technology.
For safe, effective, and environmentally responsible stone restoration, trust the experts with exclusive access to the best in modern conservation technology.
Why Choose Us for Stone Cleaning?
Only SA Provider of ThermaTech Technology
Only SA Provider of ThermaTech Technology
- Over 20 years of stonemasonry expertise
- Trusted by multiple South Australian councils for heritage projects
- Only contractor in SA with specialist Europe-engineered stone cleaning technology
- Non-abrasive, chemical-free cleaning process safe for heritage stone
Video - stone cleaning by A.R.C
FAQ's about the thermatech cleaning system
What can it help with?
Built-up dirt or pollutants can accelerate the growth of biological matter, which in turn can quicken the erosion and decay of stone surfaces and mortars.
- Improve the appearance of, and protect, stonework
- Remove unwanted paintwork, stains, and residue from masonry
- Remove carbon sulphation and other unwanted soilings
- Remove oil- and water-based masonry paint
- Remove weather stains from stone and masonry
- Protect masonry from mould and bacteria.
How does it work?
Unlike a conventional hot water pressure washer, the ThermaTech system combines continuous high
temperature and pressure and lower water volume. This is delivered as a liquid spray, even at
temperatures close to 155ºC. Low pressures can be used for the gentle cleaning of the most delicate substrates. The ThermaTech has approximately 50% more performance in terms of pressure, as well as in terms of water volume than other styles of systems.
What can it remove?
Often without the addition of any chemicals, ThermaTech can be used for the melting or removal of the following from stone, brick, limestone, sandstone, granite and more:
- organic matter including algae, lichen and moss
- paint and coatings (including graffiti)
- chewing gum, bird droppings
- Wax, Oil, Bitumen
Is it safe to use on heritage and monuments?
YES! The ThermaTech system was developed in the UK and is, unlike other machines, purposely made for delicate, historic surfaces and substrates and has been used on structures from historic buildings like the Tower of London to stone statues in Jeddah.
Do you clean residential stone homes as well as public buildings?
Absolutely. We clean stone houses, stone walls, and other residential features such as entryways, retaining walls and pillars. Whether you’re a homeowner or property manager, we provide professional stone cleaning services throughout Adelaide and regional SA.
Is it environmentally friendly?
Yes! Energy consumption is minimised through high-efficiency electric motors and air powered devices. The highly effective cleaning delivered by the ThermaTech® system reduces reliance on cleaning chemicals by enabling effective use of milder chemicals (where required). Water consumption is key and the system has been designed around high performance in conjunction with reduced water consumption .
BEFORE AND AFTER stone CLEANING in SA
Charles Sturt Memorial, Adelaide (After)
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