Commercial Roofing Experts in Christchurch & Canterbury

Roofmasters Christchurch provides certified Butynol, TPO, PVC and seamless membrane roofing for commercial and industrial buildings across Canterbury and the South Island. Our licensed roofing contractors design and install leak-free, warranty-backed systems that keep your property protected and compliant year-round.

Serving Christchurch, Canterbury & the South Island

Why Businesses Trust Roofmasters

For over 20 years, Roofmasters Christchurch has been the go-to commercial roofing partner for builders, architects, and facility managers across Canterbury.


We’re licensed Building Practitioners and ARDEX-approved installers, trusted to deliver Butynol, TPO, and seamless membrane roofing that meets New Zealand’s toughest compliance standards.


Every project is backed by manufacturer warranties, full health & safety certification, and a no-leak guarantee — because we believe reliability builds reputation.

  • Licensed Butynol, sheet membrane & WaiSeal Pro installers
    SiteSafe NZ accredited

  • Manufacturer-backed warranties

  • Local, fast-response teams

  • Transparent, itemised pricing

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Seamless Solutions, Seamless Service.

  • Certified installers for new flat-roof builds across Christchurch, Canterbury & the South Island.
    We supply and install durable Butynol, TPO, PVC & WaiSeal Pro membranes engineered for long-term waterproofing performance.

  • Fast, certified leak repairs to keep your operations dry and compliant.
    We use seamless membranes and sheet membrane systems for permanent waterproofing.

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  • Durable, waterproof roofing systems for complex roof layouts.

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  • There is a major difference between completing repairs to completing maintenance work. Proactive and preventative care to keep your roof in top condition.

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  • Upgrade without shutting down. Our staged reroofing process ensures minimal disruption while installing durable TPO, PVC, or seamless liquid membranes.

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  • Large-scale roofing services for industrial properties across Christchurch, Canterbury, and the wider South Island. Fully compliant and safety-managed.

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Trevor Keast applies a commercial roofing membrane on a high rooftop overlooking Queenstown, New Zealand, with scenic mountains and lake in the background.

Proven Membrane Roofing Systems

We install NZ’s most trusted commercial roofing systems:

  • Butynol – classic waterproof membrane with 30-year lifespan.

  • TPO & PVC membranes – energy-efficient, heat-welded seams.

  • WaiSeal Pro – seamless NZ-made membrane for complex roofs.

  • Liquid Membrane Roofing – ideal for detailed, hard-to-reach areas.

All systems are code-compliant, leak-proof, and low maintenance.

Locally owned and operated, Roofmasters has set the standard for roofing excellence in Christchurch and across the South Island.

Who We Are.

Our team of seasoned professionals is led by Trevor Keast, a licensed building practitioner with all seven roofing certifications. We're dedicated craftsmen who ensure every job is done right, from simple repairs to complex installations.

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We Tailor Every Roofing Solution

Every roof is different — and so is our approach. Roofmasters Christchurch assesses substrate, slope, exposure, and building use before recommending the right membrane system.


We match each project with proven technologies like Butynol, TPO, or seamless WaiSeal Pro coatings to ensure the best performance and warranty coverage.


Whether it’s a new commercial build, re-roof, or industrial upgrade, our designs are engineered for long-term waterproofing, compliance, and minimal maintenance.

Architects + Builders seeking expert roofing partners for new constructions.

Commercial property owners looking for reliable roofing solutions.

Residential complexes in need of durable, long-lasting roofing.

FAQs

  • Seamless membrane is a tough light weight solution for new and existing roofs. Seamless membrane can be used for new and existing roofs and new substrates; it can be applied over existing membranes and metal roofing it has no laps or joins. Seamless membrane is engineered to meet sustainable design criteria.

  • Seamless roofing is sprayed on with specialised equipment , covering up to 500sqm in one day. Most leaks appear around the seams and joins in a flat roof membrane, therefore a seamless roofing solution is the best way to prevent a leaky roof or walls.

  • Any flat roof or cracked wall will benefit from seamless membrane. Think schools, hospitals, hotels, commercial buildings, large residential properties.

  • They all perform well to NZ Standards, however the seams or joins in the membrane are the weak point and our membrane eliminates this issue.

  • Yes, absolutely it is.

  • Roofmasters Christchurch seamless roofing is available in black, white and grey.

  • Yes we do, talk to us about the best solution for your project. Get in touch >

  • Yes — we service Christchurch, Canterbury, and selected South Island regions.

Hear from those who know us best.

  • Roofmasters is our go-to for any roofing project. Their professionalism and the quality of work are unmatched. Trevor’s expertise has saved us time and money, making every project seamless.

    Paula Ryan, Property Projects Officer, Timaru District Council

  • We have contracted on many occasions Roofmasters to fix persistent leaks for our clients. Trevor consistently offers up cost-effective solutions in a timely manner and have no hesitation in recommending Roofmasters and Trevor to other potential clients.

    James, CIPM Limited, Commercial Property Manager

Your Local Roofing Partner in Canterbury

Whether it’s repairs, reroofing, or waterproofing, Roofmasters delivers quality, compliance, and reliability across the South Island.
Work with a roofing company that stands behind every project — certified, insured, and locally trusted.

Contact Roofmasters today and let us protect your property with our proven solutions.

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