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Avoid Costly Renovation Mistakes Before You Spend a Dollar.

Planning a Structural or Large-Scale Renovation?

The 5 traps that quietly blow out budgets in structural and large-scale renovations — and exactly how to avoid them.

The Renovation Black Book 3D
Dan reno guys

"I'm sick of watching good people get rinsed because they engaged the wrong builder, or didn't know what questions to ask."

Dan Grimshaw
Managing Director, The Reno Guys · LBP Certified Builder

The problem with major renovations isn’t the building work. It’s what happens before the building begins.

There are critical decisions made before construction starts that determine whether your renovation runs smoothly — or becomes expensive and stressful. This guide will help you enter design with clarity, ask the right questions early, and avoid the traps that cause budget blowouts and regret.

Inside The Black Book You’ll Learn:

How to avoid disproportionate design and engineering costs before work begins
The hidden cost that impacts many pre‑1990 homes
How to assess whether your builder truly understands renovation complexity
The single step that prevents most second‑month budget shocks

Meet Dan

  • 26 years building experience and 14 years serving the Waikato with renovations and new builds.
  • Full end-to-end project management, ensuring a seamless renovation process.
  • Licensed Building Practitioners (LBP), guaranteeing professional and compliant work.
  • A dedicated team committed to delivering quality craftsmanship tailored to your needs.
  • Specialists in full house renovations, kitchens, bathrooms, and house extensions.
  • Building architectural homes through The Reno Guys sister company Fervour Construction.
  • Locally owned and operated
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