Janssen Contractors is a Christchurch building and construction company based in Mairehau, serving Christchurch and the wider North Canterbury region. Founded in mid-2021 as a sole trader venture, the company became an LLC in March 2022, and has grown to more than 4 years in business, over 100 happy clients, more than 200 completed projects, and 6+ qualified staff.
Janssen Contractors specialises in new home builds, home renovations, kitchen and bathroom renovations, cladding, standard house plans, garage conversions, decks and fences, and office and commercial fit-outs. The company is backed by Halo Guarantee NZ, NZCB (Certified Builders) and Licensed Building Practitioner accreditation, and its team includes Master Builders and Licensed Building Practitioners.
The company follows a four-step building process: a no-obligation consultation, design and planning, the build itself, and a final inspection with handover documentation and warranties. Janssen Contractors emphasises transparent pricing, clear communication throughout every project, and a personal, tailored approach to renovations, new builds and fit-outs.
Janssen Contractors is a Christchurch building and construction company based in Mairehau, serving clients across Christchurch and the wider North Canterbury region. What began in mid-2021 as a sole trader venture became a fully-fledged LLC in March 2022, and the company has since grown to more than 4 years in business, over 100 happy clients, and more than 200 completed projects, supported by a team of 6+ qualified staff.
Janssen Contractors describes itself as more than just a building company — a reflection of quality craftsmanship, transparent business practices and exceptional customer service. Based in Mairehau, the company's reach extends throughout Canterbury, bringing additions, alterations and bespoke construction projects to life for clients regardless of project size.
The company covers new home builds, home renovations, kitchen and bathroom renovations, cladding, standard house plans, garage conversions, decks and fences, and office and commercial fit-outs. New builds focus on architectural design, sustainable materials and council compliance. Home renovations range from structural upgrades and metal roofing to open space concepts and energy retrofits. Kitchen renovations bring in smart appliances, custom cabinetry and open-plan designs, while bathroom renovations focus on creating spa-like spaces with custom showers, heated floors and smart mirrors. Decks and fences projects cover composite decking, pergolas, privacy fencing and outdoor kitchens, and office fit-outs focus on ergonomic, technology-integrated workspaces.
Janssen Contractors is backed by Halo Guarantee NZ, NZCB (Certified Builders) accreditation, and Licensed Building Practitioner status, with a team that includes Master Builders and Licensed Building Practitioners managing each project with precision from start to finish.
Every project starts with a comprehensive, no-obligation consultation at the client's site, where the team discusses the vision, needs and specifics of the project and assesses the space. This is followed by a design and planning phase, including architectural drawings, material selection and finalising the project scope in line with local building codes. The build phase sees skilled craftsmen and project managers bring the vision to life with regular updates and transparent communication. Finally, a thorough inspection ensures every detail meets the company's standards before a comprehensive handover, including documentation and warranties.
The company highlights several reasons clients choose to work with them: customer satisfaction with a personal touch, tailored solutions with open communication throughout every phase, expertise across renovations, new builds, decks, fences and fitouts, a commitment to finishing on time and on budget, transparent pricing with detailed quotes and no hidden fees, and consistent quality craftsmanship regardless of project size.
Janssen Contractors can be reached at 20 Haughey Drive, Mairehau, Christchurch 8052, by phone on 03 660 1280, or by email at [email protected]. The company also maintains a Facebook and Instagram presence, and offers a free quote request through its website for those ready to start a project.