Re-Roofing Specialists (SI) Ltd has been one of Christchurch's leading re-roofing and spouting companies since 1975, when Trevor and Bev founded the business. Today it is owned by Glen Paterson, who joined as son-in-law in 2018 and took over ownership in 2021, bringing more than a decade of senior management experience in the building supplies industry and a genuine enjoyment of working directly with homeowners and commercial property managers.
The company's specialty is exactly what its name says: re-roofing — work it notes demands more skill and experience than roofing a new build. The team replaces iron, concrete tile, decramastic tile, asbestos, Onduline and slate roofs with new iron from Colorsteel and Colorcote, and provides a full residential spouting service across Christchurch. On the commercial side, they handle light commercial re-roofing for factories, warehouses and sheds — even churches, with recent projects including the Church of Epiphany in Gebbies Pass, the Church of Nazarene in Avonside and the Sisters of Mercy in Upper Riccarton.
Customers can expect a quick, responsive service designed to minimise disruption to family or workplace. Every job begins with a free, no-obligation roof assessment and quote, with the team visiting anywhere in Canterbury. Workmanship is backed by the Consumer Guarantees Act 1993, the Fair Trading Act 1988 and the Building Act 2004, while Colorsteel and Colorcote provide matching product warranties on their NZ-manufactured roofing.
Based in Burnside at 8B 41 Sir William Pickering Drive, the company keeps a gallery of before-and-after photos showing the difference a replacement roof and new spouting can make. The message to Canterbury property owners is simple: get the job done right — first time, every time.
When a roof starts to show its age, most homeowners want one thing: a firm that does replacement roofs day in, day out — and does them properly. In Christchurch, Re-Roofing Specialists (SI) Ltd has been that firm since 1975, when founders Trevor and Bev established the business and quickly made it one of the city's leading re-roofing and spouting specialists. Nearly five decades on, the promise is unchanged: get the job done right — first time, every time.
The company remains a family affair. Glen Paterson — Trevor and Bev's son-in-law — joined in 2018 and took over ownership in 2021. He arrived with more than a decade of senior management experience in the building supplies industry, and values the direct contact with homeowners and commercial property managers that owning Re-Roofing Specialists gives him. That hands-on, local ownership shapes how the firm works with its customers.
As the team likes to point out, re-roofing requires more skill and experience than roofing a new build. Stripping and replacing a roof over an existing home or building throws up challenges a new build never does — working around what is already there, keeping the weather out, and leaving a tidy, watertight result behind. Five decades focused on replacement work mean the crew has seen, and solved, just about every roofing situation Christchurch properties can present.
That specialisation shows in the range of roofs they replace. Iron, concrete tile, decramastic tile, asbestos, Onduline and slate roofs are all swapped for new iron from Colorsteel and Colorcote — two New Zealand–manufactured brands whose product warranties are the same for both. A quality roof replacement, the company notes, will add value to a property and protect it for years to come.
Residential re-roofing is the heart of the business, backed by a full residential re-spouting service across Christchurch, including spouting and downpipe replacement. The team is equally equipped for light commercial roof replacement and has worked on factories, warehouses and sheds — even churches. In 2020 alone they completed work for the Church of Epiphany in Gebbies Pass, the Church of Nazarene in Avonside and the Sisters of Mercy in Upper Riccarton.
Asbestos roof replacement is another area of focus; the company's blog documents recent asbestos replacement projects, including a New Brighton home. For inspiration, the website gallery is well worth a browse — before-and-after photos show concrete tile roofs transformed with clean new iron, tired spouting renewed, and rural houses and city homes alike given a new lease on life.
Re-Roofing Specialists describe themselves as fast and reliable, aiming to provide a quick and responsive service that minimises disruption to your family or workplace. Every job starts with a free, no-obligation roof assessment and quote, and the team will visit you anywhere in Canterbury. Their own advice to homeowners is blunt: don't ignore leaks or other problems with an ageing roof — it will only cost more in the long run.
Guarantees are set out clearly rather than left vague. Workmanship is covered by the Consumer Guarantees Act 1993, the Fair Trading Act 1988 and the Building Act 2004, while product warranties come directly from Colorsteel and Colorcote. For customers, that means the new roof over their head is backed at every level, from the installers to the material itself.
The business operates from 8B 41 Sir William Pickering Drive in Burnside, serving homeowners and commercial property managers throughout Christchurch and greater Canterbury. Whether the job is a leaking iron roof in the hill suburbs, a worn decramastic roof by the coast, or a light commercial building in the city, the approach is the same: a quick response, quality NZ-made materials, and workmanship the owners put their name to.
If your roof is due for replacement — or you simply suspect it might be — a phone call to 03 352 4007 or a message through the website is all it takes to arrange a free assessment. With nearly fifty years of re-roofing behind them, the firm Trevor and Bev started, and Glen now leads, remains one of Canterbury's most trusted names for getting a roof replacement done right.