
Muonio Mechanical provides comprehensive plumbing solutions for commercial properties of all sizes. Our expertise covers new construction, renovations, and maintenance for offices, retail spaces, restaurants, and industrial facilities. From installing complex piping systems to ensuring code compliance and energy efficiency, we deliver reliable, scalable solutions that keep your business running smoothly.
Our mission is to support businesses across the Flathead Valley by delivering high-quality, cost-effective, and efficient plumbing, heating, and cooling services tailored to meet the unique needs of each commercial client.


Send us your plans, include the location of your job, & give us a fixture allowance. Our estimate form on our ‘Contact” page will walk you through you the rest!

Underslab plumbing involves installing water supply and drainage pipes beneath a building’s concrete slab. This essential phase ensures efficient flow and waste removal for commercial kitchens, bathrooms, utility rooms, and other critical areas.

Rough-in plumbing is the stage where water supply and drain lines are installed within walls, floors, and ceilings before drywall and finishes go in. This step sets the framework for all plumbing fixtures and systems.

The plumbing trim-out phase involves installing all visible fixtures such as faucets, sinks, toilets, and other hardware after walls and floors are finished. We carefully fit and test each fixture to ensure optimal function and a professional, polished finish that meets the standards of your commercial space.

At Muonio Mechanical, we aim to be the trusted partner for commercial plumbing, heating, and cooling solutions across the Flathead Valley. We are committed to delivering durable, code-compliant systems that enhance the functionality and efficiency of every business we serve. Through innovation, skilled craftsmanship, and responsive service, we strive to support our clients’ success by creating safe, reliable environments built to last.



















