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"We were incredibly impressed with Karl and would not hesitate in recommending him and using him again myself. He carried out the work quickly in a very tidy manner and to a very high standard."

- Todd Berry, Mt Albert

"Karl worked on the extension and renovation of my home. Karl never saw anything as a problem and helped to find solutions whenever it was required. He communicated clearly and delivered what he promised. I am really happy with the result."

"We were particularly pleased with Karl's attention to detail and quality of workmanship. When confronted with challenging situations Karl was proactive and innovative in suggesting solutions. Karl went the extra mile to achieve deadlines and ensure the project moved along.

- Lloyd & Rebecca Richards, Mellon's Bay

"Catalyst Construction helped build our new home in Howick. We were thrilled with the quality, workmanship and attention to detail. We would definitely recommend Karl and use Catalyst Construction again."

- Matthew and Rochelle Johnson, Howick

- Nikki Johnston, Sunnyhills Auckland

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