Commercial Re-roofing & Roof Replacement in Canterbury

When your existing roof is failing or past its service life, Roofmasters Christchurch provides certified re-roofing and full roof replacement for commercial, industrial, and multi-unit buildings.
We install Butynol, TPO, and seamless membrane systems that meet NZBC E2/AS1 standards delivering leak-free protection and manufacturer warranties up to 20 years.

Roofmasters’ team includes specialist installers for both longrun metal re-roofing and membrane replacement systems — each licensed and experienced in commercial and industrial projects across Canterbury. 

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After careful evaluation, Trevor and his team may in some instances suggest a complete new roof for the best long-term plan and monetary considerations.

If you require a reroof or have been told you need a reroof get a second opinion, it may save you thousands and thousands of dollars. 

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A strip mall with a parking lot in front, featuring several parked cars, under a cloudy sky. The building houses various shops, including a Thai restaurant named Newman's Thai Cuisine and a Japanese restaurant named Tomi.
A close-up of a dark gray, textured sloped roof with scattered white paint chips or debris, adjacent to a white building with an outdoor electrical box, with a parking lot and gas station in the background.

before

Two blue glow sticks crossed in an X shape against a black background.

The owner of this roof was told it contained asbestos in the old tiles and based his price on this.

Roofmasters had the tiles checked in multiple places for asbestos and was found to be negative, Roofmasters contractors replaced the roof and saved the client over $40,000.

A single-story building in a parking lot with several cars parked in front. The building has a grey metal roof and white exterior walls, with signs indicating it's a Japanese restaurant named "Tomi" and a Thai restaurant named "Joe's Thai Cuisine." The sky above is cloudy.
A small restaurant building with signs reading 'Sema's Thai Cuisine' on the front, and a parking lot with a white SUV parked outside under a cloudy sky.

FAQ

  • If your roof is over 15–20 years old, has widespread leaks, or recurring membrane issues, it’s usually more cost-effective to re-roof.
    Re-roofing ensures your property meets current NZBC E2/AS1 waterproofing standards, restores full protection, and extends roof life by decades.

  • Description In many cases, yes. Roofmasters can apply TPO or seamless liquid membranes directly over sound existing substrates like concrete or metal, reducing downtime and waste.
    We’ll assess the surface condition first to confirm overlay suitability and maintain manufacturer warranty coverage.text goes here

  • Absolutely. Our team safely removes old roofing materials, manages waste disposal in compliance with environmental standards, and prepares the substrate for new installation.
    We also repair any underlying damage before applying the new system.

  • All re-roofing projects come with a 5-year workmanship guarantee and up to 20-year manufacturer warranties depending on the chosen system (Butynol, TPO, or seamless membrane).
    Each project includes full documentation and compliance certification for building owners.

  • Most re-roofing projects are completed within 3–7 days, depending on roof size and weather.
    We work around your operations to minimise disruption and provide daily progress updates.

  • Yes — Roofmasters provides scheduled maintenance plans to protect your new roof, including inspections, cleaning, and condition reports to ensure long-term performance and warranty compliance.

Ready to plan your re-roof?
Talk directly with a licensed Roofmasters specialist for a free roof assessment and quote.

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