Serving WA • OR • ID • MT • AK — MG products also in Canada
Call us: 360-703-2960
Who We Serve • Contractors

Find the Right Roofing & Building-Envelope Solution

Commercial low-slope or residential steep-slope — you need the right product for this roof, this detail, this weather. MG Sales matches products to problems and trains your crew before the job starts.

Product Selection Help

Commercial or residential — describe the roof and the problem; we'll match it to the right membrane, underlayment, sealant, coating, flashing, or drainage fix.

Crew Training & Demos

Hands-on installation training on-site or at your supplier — so the first install isn't the learning install.

Wet-Weather Specialists

Flash Dam leak control, damp-surface sealants, and products chosen because they work in Northwest conditions.

Job-Site Visits

Details, mock-ups, and troubleshooting on active projects across the territory.

Where to Buy

We'll point you to the nearest stocking distributor for any line we represent.

Callbacks Prevention

Ponding at curbs? Leaks at penetrations? Ask about Curb Slope, ChemCurb, and prefab flashings that end repeat visits.

Got a roof problem right now?

Call 360-703-2960 or browse the searchable line card to find your fix.

Search the Line Card