Roof Treatment Cleaning

Removes moss & lichen from your roof over time

Protects your roof integrity without causing damage or water penetration and preserves your home's value.

RoofGuard treatment

RoofGuard protection for moss, lichen, and grime

Roof treatment cleaning should explain the risk clearly, then show the before/after result early.

RoofGuard™ Protection of Your Home

Once organic damage has compromised your roof's surface coating, it is vulnerable to further deterioration. Moss, mould and lichen can block water channels, damage protective surface coatings, deteriorate ridging and mortar, and reduce roof life.

Blocks water channels and increases leak risk
Damages protective tile and roof coatings
Can void manufacturer warranty expectations
Can cause permanent etching to the coating and substrate

We've been treating roofs in New Zealand for over 65 years, and our RoofGuard™ solution and a little time is all your roof needs to keep clean and clear of organic material.

RoofGuard services

Our RoofGuard™ Treatment Process & Services

How we protect and maintain your roof with our two-stage process

Stage 1: RoofGuard™ Moss & Grime Removal

The first step in our maintenance will remove moss and lichen from your roof, reduce water retention, and unblock water channels.

What's Included:

One Year Guarantee
Roof Visual Appraisal Report
Up to five Concrete Tiles replaced

Stage 2: RoofGuard™ Moss Proofing

After your roof has been weathered clean, which takes around 12 months, we will undertake a RoofGuard™ Moss Proofing treatment. We recommend you continue to apply it every two to three years. The RoofGuard™ Moss Proofing program stops regrowth and maintains your roof's appearance and structural integrity.

What's Included:

Two Year Guarantee
Roof Visual Appraisal Report
Up to five Concrete Tiles replaced

Service process

From initial inspection to final completion

The process is simple: inspect the roof, confirm the scope, complete treatment, then report on what was found.

Initial Inspection and Quotation

We will provide you with a quote based on the extent of work needed to be completed.

Contract Acceptance

After you confirm the work to be carried out, we will schedule a time to complete it.

Completion and Final Inspection

Following the RoofGuard™ Treatment, you will receive a Visual Appraisal Report.

RoofGuard Customer Feedback

Comments from homeowners using our roof treatment cleaning service to control moss, grime, and long-term roof deterioration.

Nadine

Roof Treatment Cleaning

Please pass on a big thank you to your operator who was fantastic with communication about the day and time he was going to do the job. A job well done, please give him a pat on the back from me.

May 2026

Auckland

Kay

Roof Treatment Cleaning

Edwards & Hardy have been maintaining my roof over the last few years for moss removal. I am very pleased with the very quick efficient service I have received and the fact you get a report on the condition of your roof (nails, gutters rust etc). Thanking you kindly.

June 2024

Hastings

Liz & Jeff

Roof Treatment Cleaning

Thanks for your excellent RoofGuard Moss Proofing service yesterday and for the excellent photos of our roof. We can't get up there to see the roof, so thank you so much for these photos. We really appreciate you and your team.

November 2023

Taupo

Questions

Frequently Asked Questions

Find answers to common questions about our roof cleaning services.

Roof Treatment cleaning is the process of spraying algae, mold, mildew, lichen, and moss on your roof to remove this organic material over time. If left unattended, these elements can cause deterioration of roofing materials, leading to leaks and the need for costly repairs. Regular cleaning extends the life of your roof and maintains your home's aesthetic appeal.

Trainee of the Year 2026

Edwards & Hardy is proud to celebrate this RANZ Trainee of the Year 2026 recognition, reflecting the calibre of our people and our commitment to developing skilled roofing professionals.

Commercial Roofer of the Year 2024

Edwards & Hardy won the RANZ 2024 Commercial Roofer of the Year Award for their exceptional work in replacing the roof on the De Lautour Medical Centre.

Training Company of the Year 2023

Edwards & Hardy were honoured to be recognized as the RANZ 2023 Training Company of the Year, reflecting our investment in apprenticeship programs and hands-on industry education.