External Mould Treatment Brisbane – Mould Assassins
Assess. Infiltrate. Exterminate.
At Flood Responders & Mould Assassins, our external mould treatment service targets mould growth on the outside of your property and ensures it stays away. External mould is more than an eyesore. It can weaken building materials, damage paintwork and even contribute to indoor mould problems if spores are carried inside.
Our trained team uses advanced inspection techniques, professional-grade cleaning products and proven prevention strategies to restore your property’s exterior to its best condition. We treat not only the visible mould but also address the environmental conditions that cause it, providing a lasting solution.
Get In Touch
Send us a message below and let’s have a chat about what you need.
Why External Mould Treatment is Essential
External mould can form anywhere moisture, shade and organic material combine. Common problem areas include walls, eaves, soffits, roofs, driveways, decks, patios, undercroft garage & storage areas and around shaded garden areas. If ignored, it can gradually deteriorate exterior finishes and lead to costly repairs. Our external mould treatment Brisbane process includes:
- Inspection – Assessing affected areas and identifying moisture or shading issues
- Surface Preparation – Removing dirt, organic matter and loose debris to ensure effective treatment
- Treatment – Applying safe, effective mould removal solutions that are environmentally friendly and safe for plants, humans and pets
- Prevention – Applying mould inhibitors and providing recommendations to improve sunlight exposure, reduce moisture retention and increase airflow
- Follow-Up Advice – Seasonal maintenance tips to keep your exterior mould-free year-round
The Mould Assassins Advantage
With over 40 years of construction industry experience, our lead assessor Harold is both a Building Services Engineer and a qualified Water Damage and Mould Remediation Technician. This expertise ensures that our external mould treatment is carried out with an understanding of how mould affects not just surfaces, but the structure of your property.
We work to eliminate mould at its source, protecting your property’s integrity and preventing it from returning. Our approach combines technical precision with practical advice so you can maintain a clean, safe and visually appealing exterior.
Preventing Mould After Treatment
Once your property has been treated, you can reduce the chance of mould returning by:
- Keeping gutters and downpipes clear to avoid water pooling
- Trimming back vegetation that shades exterior walls and surfaces
- Cleaning exterior surfaces periodically to prevent build-up of organic matter
- Allowing airflow by avoiding stacked items against exterior walls
Frequently Asked Questions
- Do you service all of Brisbane for external mould treatment?
We focus on external mould treatment in the Brisbane Northern Suburbs, delivering fast and reliable service.
- Are your treatments safe for my garden and pets?
Yes. We use environmentally friendly products that are safe for plants, animals and people when applied correctly.
- Can external mould spread inside my home?
Yes. Mould spores can enter through open windows, doors or ventilation systems, which is why outdoor mould removal is important.
- How long will the treatment last?
This depends on environmental factors. With our aftercare recommendations, you can significantly reduce the risk of regrowth.
- Do you guarantee your work?
Yes. We provide a 12-month limited warranty when aftercare recommendations are followed.
- What makes Mould Assassins different?
We do more than remove surface mould. We address the conditions that cause it, apply preventative treatments and give you the knowledge to keep it away.
