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Certified Builder Network · Montana

Build your DEN in Montana with North Brothers.

North Brothers Builders is DEN's certified partner for northwest Montana — building-science-first builders trained on the DEN prefab system, running your build from foundation to final walkthrough.

TerritoryWhitefish & Glacier National Park
OwnersMark Manning & Brett Morton
CredentialPhius Certified Builder
Certified onDEN prefab system

The Builder

Guided by what endures.

North Brothers is a specialty residential general contractor owned and operated by Mark Manning and Brett Morton, rooted in northwest Montana's tradition of craftsmanship. Their work balances design with long-term performance — homes meant to be durable, comfortable, and built to last for generations.

They're also a Phius certified builder — trained in passive-house building science, the most demanding standard for energy performance and envelope quality in residential construction. It's the same discipline DEN's super-insulated prefab panels are engineered around, which is exactly why they're the network's first partner.

The Whitefish Gable House, built by North Brothers Builders in Whitefish, Montana

The People

The builders behind the name.

Mark Manning, co-owner of North Brothers Builders

Mark Manning

Co-owner

Brett Morton, co-owner of North Brothers Builders

Brett Morton

Co-owner

“We love DEN’s clean, efficient designs and the team behind them. Paired with our process, we know we can offer clients an incredibly cost-effective build.”

Mark Manning & Brett Morton · Co-owners, North Brothers Builders

Why we Certified Them

North Brothers builds the way we design.

01

Vetted craft

A full-service GC with a portfolio of design-forward Montana homes — we reviewed the work, the licensure, and the building philosophy before anything else.

02

Building science first

Phius certification means passive-house-level rigor on airtightness, insulation, and envelope detail — the discipline DEN's prefab panel system is built around.

03

Trained on the DEN system

DEN trains every certified partner on our prefab assembly system before they ever run a build. You get their craft and our engineering, together.

Building in Montana

From your land to your DEN, in three steps.

01

Confirm your site

Start with a Feasibility session — we pressure-test your parcel, price the whole project, and draft a site plan. The fee credits forward in full.

Start with Feasibility →

02

Reserve your kit

Choose your prefab and place your deposit. DEN engineers the structure to your site and delivers stamped, permit-ready plans.

Explore prefab kits →

03

Build with North Brothers

We introduce you, the kit ships, and North Brothers runs your build — from first panel to final walkthrough.

Northwest Montana

Building near Whitefish or Glacier National Park?

Feasibility is how you get to North Brothers — we pressure-test your parcel, and your builder introduction comes with it. The full fee credits toward your build.

Start with Feasibility

North Brothers Builders is an independent, licensed general contractor. DEN engineers and manufactures the prefab kits; North Brothers runs the build on site. ← Back to the Certified Builder Network