Stone Lab is a whānau-owned business that specialises in the treatment, restoration, and protection of natural and engineered stone and tiles. With over 28 years of experience in the Bay of Plenty — including more than 8 years dedicated exclusively to stone and tile restoration — Stone Lab are proud to be NZQA-qualified stone restoration and repair technicians.

From chip repairs, scratch and etch removal, and stain treatment to polishing, surface reconditioning, and protective applications, they restore all types of stone surfaces, including granite, marble, limestone, travertine, and basalt.

With deep roots in the tiling trade — over 21 years of hands-on experience — Stone Lab brings exceptional skill and precision to every project. Today, their expertise extends across residential and commercial spaces, helping clients recover, restore, and protect their natural stone assets.

As a Māori-owned, family business, Stone Lab upholds the values of Kaitiakitanga — guardianship and care for the environment. Their use of eco-friendly Italian restoration products and sustainable methods reflects a strong commitment to craftsmanship, integrity, and environmental responsibility.

Stone Lab is known for building genuine, transparent relationships with clients — never overpromising, always delivering honest, high-quality workmanship.

“Our purpose is simple: to improve industry standards and extend the life of the materials we work with.
Toi tū te ora, toi tū te mauri — Live sustainably by restoring, not replacing.”

— Leif Nahi, Director and Qualified Stone & Tile Technician

Leif’s extensive knowledge is further enhanced by drawing from a close network of stone artisan’s from around the world. Leif’s commitment to excellence ensures that Stone Lab remains at the forefront of stone treatment and restoration.

Stone Lab, offer a comprehensive range of services designed to meet all your stone care needs including:

Recover, Restore and Protect all your Natural Stone Assets

Stone Lab® have been providing quality services all over the Bay of Plenty, Waikato, Coromandel, Auckland, Rotorua, Taupo and Wellington. Feel free to browse their photo gallery to see sample works.