FITZ CONSULTING

Building Strengthening

Expert Seismic Retrofit & Structural Solutions

Commercial retail space with interior strengthening renovation

Premium Building Strengthening

Seismic retrofit & structural solutions.

At Fitz Consulting, we are Christchurch’s leading building strengthening specialists, providing comprehensive seismic retrofit and structural strengthening solutions. With extensive experience dating back to the post-2010/2011 earthquake period, our team delivers NBS-compliant building strengthening services that maximize your property’s safety, value, and lifespan.

Christchurch building compliance services

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NBS Compliance Christchurch

Expert services to help your building achieve required New Building Standard percentages, whether targeting the minimum 34% NBS or the preferred 67% NBS threshold.

earthquake strengthening building plans

Seismic Bracing

Code-compliant seismic bracing installation for buildings, non-structural elements, and equipment throughout Christchurch.

Foundation with rebar

Foundation Strengthening

Comprehensive foundation assessment and strengthening services tailored to Christchurch's unique geological conditions.

Structural Engineering Consultations

Professional advice on building strengthening options from qualified structural engineers with extensive Christchurch earthquake experience.

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Why choose our building strengthening contractors

Our primary focus for building strengthening in Christchurch centers on:

Building strengthening contractors christchurch: FAQs

Fitz Consulting maintains up-to-date knowledge of New Zealand’s national system for managing earthquake-prone buildings. For Christchurch buildings identified as earthquake-prone, owners must complete seismic strengthening work within specific timeframes – 7.5 years for priority buildings and 15 years for other buildings from the date of the EPB notice. Our team provides expert guidance navigating the Earthquake-Prone Building Register and Christchurch City Council requirements, helping you understand your obligations and develop cost-effective compliance strategies.
As Christchurch building strengthening specialists with experience dating back to the post-2010/2011 earthquake period, we have unique expertise in seismic engineering and rebuilding. Our team is thoroughly familiar with Christchurch’s specific earthquake-related building codes and the New Building Standard (NBS) requirements. We work closely with structural engineers who understand the local geology and can recommend appropriate solutions for different areas of Christchurch, from the CBD to the suburbs. Our strengthening approach always prioritizes structural integrity and safety while delivering spaces that remain functional and aesthetically pleasing.

For building strengthening in Christchurch’s occupied commercial buildings, we implement a carefully orchestrated approach to minimize business disruption:

  • Detailed pre-strengthening planning with clear timelines and milestones
  • Phased strengthening schedules that allow continued business operations
  • After-hours work scheduling for particularly disruptive strengthening phases
  • Sectional strengthening approaches that allow partial occupation where possible
  • Temporary structural solutions that maintain safety during the strengthening process
  • Regular progress updates and transparent communication about timeline changes
  • Coordinated deliveries and waste removal to minimize impact on operations
  • Established relationships with local Christchurch authorities to expedite permits and inspections

The NBS (New Building Standard) rating is determined through detailed structural assessment considering factors such as the building’s construction materials, structural design, age, location, and local seismic hazard levels. Our comprehensive approach includes:

  • Initial Evaluation Procedures to identify potential weaknesses
  • Detailed Seismic Assessments using advanced engineering analysis
  • Identification of critical structural elements affecting the NBS rating
  • Strategic strengthening designs that target key weaknesses to maximize NBS improvement
  • Cost-benefit analysis of various strengthening options to achieve desired NBS levels
  • Post-strengthening verification to confirm the new NBS rating


As structural engineering experts, we specialize in designing efficient strengthening solutions that achieve the required NBS improvement with minimal structural intervention, helping Christchurch building owners meet compliance requirements cost-effectively.

Building strengthening before & after

Client Testimonial

"Following the 2010 earthquakes, our severely damaged commercial building needed a considerable amount of repair and upgrade. Working with Paul Fitzsimmons of Fitz Consulting Ltd was great. The project from my point of view ran really smoothly and I was really pleased with the final outcome. He dealt with the day-to-day running of the renovation and upgrade. There were variations and challenges at certain points of the project, and I have to say that Paul dealt with them efficiently, and with excellent communication throughout. I was really pleased with the service that Fitz Consulting gave us and I would be happy to recommend them to others or use them again."
Chris Voison | Kiwi Basecamp