General Contractor · Missoula, Montana

Built with care.
Built to last.

Stonefly Contracting handles remodels, additions, decks, and the hundred jobs in between for homeowners across Missoula and Western Montana. Straight answers, clean job sites, and work we’re proud to put our name on.

Stonefly Contracting logo: a stonefly whose body is a framing hammer
Locally ownedMissoula, MT
Built to lastMade for Montana winters
Owner on siteYou talk to Joseph
Free estimatesNo pressure, ever

What we do

Services

From a single rotten deck board to a full addition, every job gets the same attention to detail.

Remodels & Renovations

Kitchens, bathrooms, basements and whole-home updates. We open up tired spaces and make them work for how you live now.

Additions & New Builds

Bedrooms, garages, shops, ADUs and outbuildings, framed square and built to handle a Montana winter.

Decks, Porches & Fencing

New decks, rebuilds, railings, covered porches and fences that make the most of Missoula summers.

Framing & Carpentry

Structural framing, trim, built-ins, doors and windows. Clean lines and tight joints, the details people notice.

Siding, Roofing & Exteriors

Siding, soffit, fascia and exterior repairs that keep the weather out and your home looking sharp.

Repairs & Punch Lists

Drywall, doors that stick, water damage, pre-sale fixes. The to-do list that’s been waiting too long.

Recent projects

Our Work

A few jobs from around the Missoula area. Follow along on Instagram for progress shots and finished projects.

@stonefly_contracting_llc

About

Meet Joseph Harris

Stonefly Contracting is owned and run by Joseph Harris, a Missoula builder who believes good work comes down to doing the job right, communicating clearly, and treating every home like it’s his own.

When you hire Stonefly, you’re not handed off to a salesperson or a rotating crew. Joseph is involved from the first walkthrough to the final punch list, so you always know who’s responsible and what’s happening next.

Why “Stonefly”?

Anyone who’s fished the Clark Fork, the Blackfoot or the Bitterroot knows the stonefly. It lives under river rocks and only thrives in clean, healthy water. It’s a quiet sign that things are as they should be. That’s the standard we hold ourselves to: solid, honest work that holds up for the long haul.

  • Do it right the first time No shortcuts behind the drywall. We build it like we’ll be the ones fixing it later.
  • Say what we’ll do, then do it Clear estimates, realistic schedules, and a call back when we say we’ll call.
  • Respect the home Floors protected, dust controlled, and the site cleaned up at the end of each day.
  • Rooted in Missoula We live here too. Our reputation is built one neighbor at a time.

How it works

Our Process

  1. 01

    Reach out

    Call, text, or send the form below with a few details and photos if you have them.

  2. 02

    Walkthrough

    We meet on site, talk through goals and budget, and take measurements.

  3. 03

    Clear estimate

    You get a written, itemized estimate and a realistic timeline. No surprises.

  4. 04

    Build & walk-through

    We do the work, keep you updated, and don’t call it done until you’re happy.

Where we work

Serving Missoula & Western Montana

Based in Missoula and working throughout the surrounding valleys. Not sure if you’re in range? Just ask.

  • Missoula
  • Lolo
  • Frenchtown
  • Bonner & Milltown
  • Clinton
  • East Missoula
  • Florence
  • Stevensville

Let’s talk

Request a Free Estimate

Tell us a little about your project and we’ll get back to you within one business day.