Exterior Cleaning Services
Professional Moss Control Solutions Since 1959
Trust our experienced team to remove moss, lichen, mould, and grime from your exterior surfaces. Our RoofGuard® treatment is non-corrosive, non-abrasive, and biodegradable.
Professional Exterior Cleaning Services
RoofGuard® treatment and pressure washing for exterior surfaces affected by moss, lichen, mould, and grime.
Edwards & Hardy offers pressure washing and RoofGuard® Treatment Cleaning programs for moss, lichen, mould, and grime on exterior surfaces.
The RoofGuard® product is non-corrosive, non-abrasive, and biodegradable, and it can be used on most cladding, paths, steps, patios, and garden walls.
Our work follows water conservation, discharge management, and Health & Safety standards outlined in ECIA best practice guidance.
Exterior cleaning process
From inspection to final appraisal
A clear process for assessing, cleaning, and reporting on exterior surfaces.
Inspection of your property leads to a quote based on the work needed.
You review and sign a contract and we will schedule the project.
Our experienced operators pressure wash or treatment clean using industry-leading techniques and safety protocols.
Following the completion of the work, you will receive a Visual Appraisal Report.
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.
BRANZ
Edwards & Hardy is proud to have developed the BRANZ-approved DuraBond® product to meet New Zealand's challenging environmental conditions.
Materials and suppliers
Trusted for over 65 years
We take our property maintenance responsibilities seriously and are supported by a number of trusted suppliers and partners.
Project gallery
Project Gallery
Before and after examples from exterior cleaning projects.
Questions
Frequently Asked Questions
RoofGuard® is our exterior cleaning treatment program that weather removes moss, lichen, mould, and grime from almost any exterior surface. It's specifically designed to be non-corrosive, non-abrasive, and biodegradable, making it safe for your property and the environment.