Montana siding since 1984.

A family business that has sided Western Montana homes since 1984. Measure carefully, build it to last, and stand behind it for life.

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A dark-sided building nearly buried in deep Montana snow — Western Montana in January

1984Walt Brenner starts siding homes

1998First on-site forming machine

2009Kate Brenner takes over

6 countiesFrom the Flathead to Silver Bow

1984

The year Walt Brenner started siding homes in Western Montana.

It started with one house, and the next one, and the next.

Walt Brenner built the business one house at a time and bought the family’s first on-site forming machine in 1998. His daughter Kate took over in 2009 and still runs it the same way. Our crews live here. They drive past the homes they’ve sided, and they know the people who live in them.

Walt BrennerFounder

Kate BrennerOwner since 2009

1984

Walt Brenner starts siding homes across Western Montana.

1998

The family buys its first on-site forming machine.

2009

Kate Brenner takes over and keeps the same standard.

Today

Six counties, from the Flathead to Silver Bow.

Four things we don’t compromise on.

They’re the same four things Walt started with. They’re why people call us back for the roof, the gutters and the windows.

01Measure carefully

Every wall, opening and roof plane, in person. Your price is written and itemized before anything is ordered.

02Build it once

Seamless steel, formed to your house, installed so it’s the last exterior your home will need.

03Respect the home

Floors protected, yards cleaned up every day, and crews you’re comfortable having around.

04Stand behind it

A lifetime warranty in writing, from a company that will still be here to honor it.

A long steel panel being formed from coil in a snowy driveway

A Clark Fork Exteriors dealer, run by a Missoula family.

We own the forming machines that roll your siding, soffit and gutters in your driveway, and the crews who install them work for us, not a subcontractor. One family-owned company is responsible for every piece, from the first measurement to the warranty.

Steel siding, soffit and fascia formed on-site
Colors we keep in stock year after year
Lifetime, non-prorated, transferable siding warranty
Local crews, not subcontractors from out of state

Why seamless steel

Homeowners shaking hands with a contractor outside their newly sided home — 4.9 on Google · 312 reviews

The crew was respectful, tidy and genuinely good at what they do. They protected our yard, cleaned up every day and finished when they said they would.
Mark & Linda T.Steel siding & windows

From the first visit to the final walkthrough, this was the easiest project we have ever done on this house. The siding looks like it grew there.
Jenna R.Siding & gutters

We get a lot of snow, and the new gutters handle every bit of it. Not one icicle off the front of the house this winter.
Chris D.Gutters & windows

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