Moss & Mould Roof Treatment

Protect your roof and extend its lifespan with Affordable Roof Coating’s professional moss and mould treatment service.

Over time, roofs throughout Auckland become covered in moss, mould, algae, and lichen. While this growth may seem harmless, it can trap moisture, contribute to roof deterioration, block gutters and negatively impact the appearance of your property.
 
Our professional treatment system targets moss, mould, algae, and lichen at the source, helping to keep your roof cleaner for longer while protecting your investment.
 
We service residential, commercial, and industrial properties throughout Auckland and surrounding areas.

Why treat moss and mould?

Moss and mould growth can lead to:

  • Moisture being trapped against roofing materials
  • Premature roof deterioration
  • Increased corrosion on metal roofs
  • Blocked gutters and downpipes
  • Unsightly staining and discolouration
  • Increased maintenance costs
  • Reduced street appeal and property value

Regular roof treatment is one of the most affordable ways to help maximise the life of your roof.

Our moss and mould treatment process

Stage 1: Roof inspection

We assess the condition of your roof and identify moss, mould, algae, lichen, and any areas requiring attention.

Stage 2: Professional treatment application

Our commercial-grade moss and mould treatment is applied across the roof surface to penetrate and target organic growth.

Stage 3: Killing growth at the root

Unlike surface cleaning alone, our treatment works to kill moss, mould, algae, and lichen at the source.

Stage 4: Treatment activation and natural breakdown process

Important: This is not a roof wash and does not provide instant cleaning results.

Our moss and mould treatment is specifically designed to kill moss, mould, algae, and lichen at the root. Once applied, the organic growth begins to die and break down naturally.

Over the following weeks and months, rainfall and weather exposure gradually wash away the dead growth, leaving the roof progressively cleaner over time.

This process is often safer for roofing materials than aggressive cleaning methods and continues working long after application.

Results vary depending on roof type, contamination levels, weather conditions, and rainfall.

Stage 5: Ongoing maintenance recommendations

We recommend regular maintenance treatments to help keep your roof in optimal condition and reduce future buildup.

Want faster results?

If you would like immediate visual improvement, Affordable Roof Coating also offers professional roof washing services.

A roof wash can remove dirt, loose moss, mould, lichen, and surface contaminants much faster than a treatment-only application, leaving the roof looking cleaner straight away.

For heavily contaminated roofs, we often recommend a roof wash followed by a moss and mould treatment. This combination removes existing growth while helping to slow its return.

Our team will assess your roof and recommend the safest and most effective solution based on the roof type, age, condition, and level of contamination.

Our service options

Moss & Mould treatment only

Ideal for preventative maintenance and long-term roof protection.

Includes:

  • Roof inspection
  • Professional moss and mould treatment
  • Long-term organic growth control

Roof Wash & Moss Treatment

Ideal for customers wanting a cleaner roof immediately.

Includes:

  • Roof washing
  • Moss and mould treatment application
  • Improved appearance and ongoing protection

Premium Roof Maintenance Package

Our most comprehensive maintenance option.

Includes:

  • Roof wash
  • Moss and mould treatment
  • Gutter cleaning
  • Roof condition inspection
  • Maintenance recommendations

Book your free quote today

Protect your roof from damaging moss, mould, algae, and lichen with Auckland’s trusted roof treatment specialists.

Simply fill out our form with your details and we’ll be in touch, or if you prefer, reach out to us on 022 453 9109 or email us at [email protected].

Areas we service

Affordable Roof Coating provides moss and mould treatment services throughout:

  • Auckland
  • North Shore
  • Rodney
  • Hibiscus Coast
  • Orewa
  • Silverdale
  • Whangaparāoa
  • Albany
  • Takapuna
  • Henderson
  • West Auckland
  • East Auckland
  • South Auckland
  • Howick
  • Manukau

Why choose ARC?

Affordable Roof Coating has built a reputation for quality workmanship, competitive pricing, and excellent customer service.

  • We’re roofing specialists.

  • Unlike many cleaning companies, we work on roofs every day and understand how different roofing systems perform.

  • Residential & Commercial Services.

  • From family homes to large commercial buildings, we provide tailored solutions for every property.

  • Honest advice.

  • If your roof only needs treatment, we’ll tell you. If repairs or restoration are recommended, we’ll explain your options clearly.

  • Auckland-wide service.

  • We service properties throughout Auckland and surrounding regions.

  • Trusted local company.

Frequenty asked questions

Is moss and mould treatment the same as roof washing?

No.

A roof wash removes visible dirt and growth immediately, whereas a moss and mould treatment kills moss, mould, algae, and lichen first, allowing it to naturally break down and wash away over time.

Treatment-only applications are often safer for roofing materials and provide long-term protection.

Most roofs benefit from treatment every 12 to 24 months depending on environmental conditions and surrounding vegetation.

Not usually.

This treatment works over time by killing organic growth and allowing it to break down naturally through weather exposure.

If immediate visual improvement is desired, we recommend combining the treatment with a roof wash.

Yes.

Moss retains moisture against roofing materials, which can contribute to deterioration, corrosion, and reduced roof lifespan.

Yes.

We provide moss and mould treatment services for commercial, industrial, and body corporate properties throughout Auckland.