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Sisu Roofing & Construction
Sisu Roofing · Flathead Valley

Siding Installation & Replacement in the Flathead Valley

If you need a siding contractor in Kalispell, MT, we can help. Sisu Roofing & Construction installs LP SmartSide engineered wood and metal siding across the Flathead Valley, from our shop in Kila. Most people know us for roofs. Siding is a natural extension of that work, because the roof and the walls share one job: keeping water out.

Craftsman-style home in the Flathead Valley with wood lap siding and an architectural shingle roof
Craftsman-style home in the Flathead Valley with wood lap siding and an architectural shingle roof. Sisu job photo.

Why a roofing crew is a good siding crew

Almost every siding failure we see starts where the roof meets the wall. Kickout flashing that was never installed, step flashing buried behind the cladding, gutters dumping onto a lower wall. A siding crew that has never worked a roof tends to treat those spots as someone else's problem. We flash them the way we would on a roof job. When we handle siding installation in the Flathead Valley, water management is the starting point, not an afterthought.

Siding that holds up in the Flathead Valley

Walls here take real abuse. Freeze-thaw cycles work moisture into every gap. Summer hail comes in off the mountains. South and west walls take hard sun at elevation, which dries out cheap cladding fast. And on homes with metal roofs, snow sheds off in slabs and hits the lower walls on the way down. We recommend two materials for these conditions, both built for impact and cold, and both backed by manufacturer warranty programs.

  • LP SmartSide: treated engineered wood, paintable, tested for hail impact
  • Metal siding: board-and-batten and panel profiles that shrug off snow shed

One contractor for the whole exterior

If your roof and siding are both near the end of their life, doing them together is usually the smart sequence. One mobilization instead of two. The roof-to-wall flashing gets built as one system instead of two crews pointing at each other. And you deal with one licensed Montana contractor (license 400855IC) instead of coordinating trades yourself. Ben Wuollet runs every project from our Kila shop, and we serve 17 towns across the valley.

What drives the cost of new siding

We price every siding job from the walkthrough, not from a per-square guess over the phone. These are the factors that move the number:

  • Material choice: LP SmartSide and metal carry different material and labor costs
  • Wall area and stories, since staging and ladder work add labor
  • Condition of the sheathing under the old cladding
  • Trim scope: corners, window and door wraps, soffit and fascia
  • Water management details like kickout flashing and gutter corrections
  • Access, including steep sites and landscaping we need to protect

When we'd tell you to repaint instead of reside

  • Your wood siding is sound and the only problem is failed paint. Prep and repaint costs a fraction of new siding and buys years.
  • One wall is weathered but the boards are tight, flat, and dry. Paint the wall, save the reside for when it is actually needed.
  • The damage traces back to a gutter or roof problem. Fix the water source first, or new siding will fail the same way.
  • Your roof is the more urgent failure. Water comes from above, and a failing roof will ruin new siding from behind.

Roof-to-wall flashing detailed by a crew that works both sides of it

LP SmartSide and metal options matched to Flathead weather

One mobilization when roofing and siding are done together

Photo and drone documentation before, during, and after the work

Licensed Montana contractor, MT license 400855IC

Local shop in Kila, owned and run by Ben Wuollet

How it goes

  1. 01

    Exterior walkthrough and photos

    We walk the full exterior with you and document every wall with photos, using the drone for gables and upper stories where it helps. You see what we see.

  2. 02

    Written scope and material selection

    You get a written scope covering material, trim, corners, and the water management details, with LP SmartSide and metal options priced side by side.

  3. 03

    Tear-off and installation

    We remove the old cladding, inspect the sheathing, repair what needs it, then install the weather barrier, flashing, and new siding to the manufacturer's instructions.

  4. 04

    Final walkthrough and photo record

    We clean the site, walk the finished work with you, and hand over a photo record of what went on your walls and what is behind it.

  • Malarkey Certified Contractor Malarkey Certified Contractor
  • Owens Corning Preferred Contractor Owens Corning Preferred Contractor
  • Flathead Building Association Flathead Building Association member
  • Verified Montana contractor license MT Contractor Lic. 400855IC

What homeowners say about Sisu siding

Kalispell and Flathead Valley homeowners, in their own words.

Ben and his team provided excellent communication and service. They were in and out and a couple of days tearing off and replacing a steep roof. We will use them again for future roofing needs on our homes.
Meghan S. · Google review
Ben was professional and communicative throughout the process. His crew worked hard and fast to complete project in an amazingly timely manner. The job site was spotless post installation. I highly recommend.
Pat C. · Google review

Read all 30 reviews on Google

Siding: questions we actually get

Should I replace my roof and siding at the same time?

If both are near the end of their life, yes. The roof-to-wall flashing gets built as one system, you pay for one mobilization instead of two, and nothing gets damaged by a second crew working over finished material. If only one is failing, we say so and scope just the one.

What siding holds up best in the Flathead Valley?

We install two materials we trust here: LP SmartSide engineered wood and metal siding. Both handle freeze-thaw cycles, hail, and hard sun better than vinyl, and metal takes snow shedding off a roof without cracking. Which one fits depends on your home's style, exposure, and budget, and we walk through that trade-off with you.

Do you install over the old siding or tear it off?

We tear off. Siding over old cladding hides rotten sheathing, traps moisture, and makes clean flashing details nearly impossible. Tearing off costs a bit more up front, but it is the only way to know what condition your walls are actually in, and we photograph everything we find before covering it back up.

Can you fix just one wall?

Often, yes. South and west walls fail first here because of sun exposure, and walls below metal roof valleys take the worst of the snow shed. If the rest of the siding is sound, replacing one elevation is a reasonable scope. Matching color and profile on older cladding is the main limitation, and we are upfront about it.

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Send the address. We fly the roof, photograph it, and put the answer in writing.

★★★★★ 5.0 · 30 Google reviews · MT Contractor Lic. 400855IC