Residential new builds, renovations, extensions, and commercial upgrades across Auckland and the Waikato. One trusted team manages your project from concept to completion.

Trusted construction professionals for new builds and renovations, from Auckland to the Waikato

Our Building Services

New build and renovation specialists.

From architectural new builds to considered renovations and extensions, we create homes defined by quality craftsmanship, thoughtful detail, and lasting value. Proudly delivering projects across the North Island. 

Build with Us
New builds

From architectural homes to thoughtfully designed new builds, we manage the entire process from planning and consents through to final handover. Built with quality craftsmanship, clear communication, and attention to detail.

Renovations and extensions

Transforming existing homes through thoughtful renovations, internal upgrades, and exterior additions. From reworking living spaces to creating new outdoor areas, we manage every stage of the process to bring your vision to life.

Commercial Upgrades

Delivering commercial upgrades, refurbishments, and fit outs with a focus on quality, efficiency, and minimal disruption.

Project management

One team. One point of contact. Complete delivery. We coordinate planning, trades, timelines, and construction to ensure a seamless experience from start to finish.

Modern kitchen with black refrigerator, island, wood dining table, patterned and cushioned chairs.

Built better. Built to last.

New builds, renovations, and commercial upgrades delivered with smart planning, quality craftsmanship, and a seamless process from start to finish.  

Modern house with light wood siding, trimmed bushes, concrete driveway, and cloudy sky background.

Work we've put our name on

Aerial view of a large house with dark roof, driveway, and lawn at corner of two streets with cars.
Green Lane - New Build
Modern backyard with a pool, hot tub, potted plant, and sliding glass doors showing a bedroom.
William Andrew Road - Renovation
View our Projects
Minimalist bathroom with white bathtub, toilet, wooden stool, basket with toilet paper, and towel.

Your project. One team. From start to finish.

We manage every stage of your build, delivering a seamless end-to-end experience from initial planning through to final handover. 

Get a free quote

Credentials you can count on

From licensed building practitioner status to Master Builders membership and SiteWise Gold certification, our qualifications back up the quality of every home, renovation, and concrete project we deliver.

Let's build something that lasts

Real feedback from clients across new homes, renovations, and construction projects. See why our commitment to quality, communication, and craftsmanship sets us apart.

"They communicated clearly throughout the whole project, kept us updated, and made the process feel easy and stress-free. The quality of the work was excellent, finished with real attention to detail."
Katherine Spence
Homeowner
"Jon and his team did an excellent job for us on a complete house build. A top-quality project, on time, very conscientious staff, very easy to communicate with and top project management. All good!"
Mike Pinker
House build
"We had our bathroom, separate toilet and laundry room completely refurbished. I could not have had a better builder/project manager than Jon. A friendly guy who got the job done. His crew got stuck in and made it happen, totally recommend 100%."
Tania Colville
Bathroom refurbishment
"Great communication! Splendid service. Very flexible with options for our bathroom renovation. Delivered a great result for a great price too! Highly recommended to all!"
Simon Wong
Bathroom renovation
"We have worked with Jon and his team on several projects. Always a pleasure. His professionalism and workmanship are top level."
Suzanne Ihaia
Repeat client
"I own a local plumbing, gas, civil and drainage company and we have used Jon's services several times. He is a delight to deal with, has great communication, work ethic and his workmanship is fantastic. We highly recommend him."

Samantha McMike

Trade partner

"To anyone considering building a new home or undertaking renovations, I would highly recommend reaching out to Jon Sundgren. Jon and his team completed a full renovation for us and we couldn't fault a thing."

Jeremy Pinker

Full renovation

"Although we engaged a main building and project manager for our home and commercial projects, we want to acknowledge the subcontracted builder Jon Sundgren Construction. Outstanding workmanship and clear pride in what they do."

Glennis Mead

Home & commercial

"The project was completed on time, which I attribute to Jon's excellent planning and communication. He completely took the stress out of the process and the quality of workmanship was outstanding. You can trust Jon to deliver a high-quality result, on time."

Jeremy & Gen

Renovation, Pukekohe

"We had a tight deadline for our new office fit-out. Jon's team finished early and the build quality is superb."

Matt Chen

CEO, TechFlow Solutions