Remove Grime & Unsightly Organic Growth With WallGuard

Brick & Stone Wall Sealing

Moss Control on Exterior walls and cladding

What We Do?

The WallGuard® Wall Sealer system is a three-stage process that removes grime and unsightly organic growths from porous brick and stone claddings, and seals them against water penetration, which helps to improve home insulation.

WallGuard® Moss and Grime Removal

WallGuard® Moss and Grime Removal eradicates Moss, Lichen and Grime from porous wall surfaces and neutralises live spores, thereby preventing future organic growth.

WallGuard® Deep Surface Cleaning

The WallGuard® Deep Surface Cleaning regime is customised for the condition and material properties of your wall cladding and restores the surface finish to the highest possible standard and an “as new” appearance.

WallGuard® Wall Sealer

The WallGuard® Wall Sealer is applied to porous wall surfaces, using product and application techniques unique to your wall cladding. The WallGuard® Wall Sealer is designed to slow down the weathering process by waterproofing the wall surface, which also helps to prevent the transfer of dampness and improve the thermal insulation properties of your home.

Trust Account

All deposits made with Edwards & Hardy are held in trust by Ellice Tanner Hart Lawyers until the work begins.

65+ Years

Edwards & Hardy have been operating since 1959, having over 65 years roofing experience.

Training Co of 2023

Edwards & Hardy were honoured to be awarded the RANZ Training Company of the Year 2023


Edwards & Hardy are proud to have developed the BRANZ appraised DuraBond® product to meet NZ's challenging environmental conditions. Click here to find out more.

Our Process

Wall Sealing Process

1. Quotation and Initial Inspection

An inspection of your property leads to a quote based on the extent of work needed.

2. Contract Acceptance

You review and sign a contract and schedule the project.

3. Completion and Final Inspection

Following the WallGuard® treatment, you will receive a Visual Appraisal Report.

Trusted for over 65 Years

We take our property maintenance responsibilities seriously and are proud to support New Zealanders in the replacement of their roofs.

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Out Latest Projects

Check out our gallery to see some of our latest installations.