Great Falls Premium Roofing provides professional chimney flashing in Great Falls, MT for residential and commercial properties across Cascade County and the Rocky Mountain Front. A chimney is a masonry structure standing up through a wood-framed roof, and those two materials do not move together. That mismatch is why chimney flashing leaks more than any other detail on a house, and why the correct fix is a specific assembly rather than a tube of sealant.
Brick and mortar barely change dimension with temperature. Wood framing and roof sheathing change a fair amount, and they also swell and shrink with humidity on top of that. Every time this town runs a roof deck through a thirty- or forty-degree swing in an afternoon, the deck moves against a chimney that does not, and anything rigid spanning that joint gets worked until it opens.
That is why the correct detail comes in two pieces. Base flashing and step flashing are fastened to the roof and move with the roof. Counterflashing is let into a saw-cut reglet in the mortar bed, fastened to the masonry, and laps down over the base flashing without ever being attached to it. The lap absorbs the movement. A one-piece flashing sealed to both surfaces simply cannot.
We cut the reglet with a grinder into the mortar joint rather than the brick face, set the counterflashing on lead wedges, and tuck-point the joint afterward. One piece of step flashing per course, woven in as the shingles are laid, never as a continuous L of metal run up the side of the masonry and caulked along its top edge.
A chimney wider than about thirty inches on the uphill side gets a cricket. Without one, snow and debris pile against the back of the masonry and sit there, and the base flashing is being asked to hold back standing water rather than shed it downhill. The cricket gets framed, decked, and flashed as its own small roof. Framing a cricket during a tear-off costs very little; coming back to add one later does not.
Metal chase enclosures around factory-built fireplaces get their own attention. Flat chase covers pond water and rust through at the seams within a decade, and the standard fix is a new cover formed with a proper crown and a cross-break so water actually runs off it rather than sitting in the middle. We form covers from twenty-four-gauge stock rather than the thin galvanized most suppliers hand out.
Our licensed and insured team brings the right materials and equipment to every job — concealed-clip standing seam that lets the panel slide as it lengthens, hand-sealed shingle tabs set in cold-applied asphalt roof cement, twenty-four-gauge steel in a Kynar-based finish with striated pan faces, externally baffled ridge vent sized against calculated soffit intake, two-piece counterflashing seated on lead wedges in a ground-out mortar joint, self-adhered ice barrier carried from the eave past the interior wall line — and backs the work with a written workmanship warranty. We serve Great Falls and nearby communities including Black Eagle, Malmstrom AFB, Sun Prairie, Gibson Flats.
What We Handle
Everything our chimney flashing in Great Falls covers
One crew, one point of contact, and the full range of chimney flashing work in Great Falls, MT. If it is on this list we do it in house rather than handing it to a subcontractor:
- chimney flashing repair Great Falls
- chimney leak Montana
- step flashing chimney
- two piece counterflashing
- reglet cut flashing
- chimney cricket install
- chimney chase cover
- masonry chimney roof leak
- chimney flashing replacement cost
- chimney flashing sealant
- chimney saddle roof
- flashing repair contractor
Not sure which one describes your situation? Describe it in plain words and we will sort it out — or browse the rest of our Great Falls services.
Materials, equipment and how we do chimney flashing
The difference between chimney flashing that lasts and chimney flashing that gets redone in three years is almost always preparation and materials, not the finish you see on day one. We work with concealed-clip standing seam that lets the panel slide as it lengthens, hand-sealed shingle tabs set in cold-applied asphalt roof cement, twenty-four-gauge steel in a Kynar-based finish with striated pan faces, externally baffled ridge vent sized against calculated soffit intake, spec them to the job instead of to the invoice, and write the material grades into the free estimate so you know exactly what you are buying.
Every Great Falls job runs the same way: site walk and measurements, written scope and fixed price, protection of the surrounding area, then the work itself with a daily clean-up. Years of roofing work in Cascade County and the Rocky Mountain Front means we have already met whatever your property is going to throw at us — awkward access, older construction, an HOA with opinions.
Where we do chimney flashing outside Great Falls
Great Falls Premium Roofing covers Great Falls and the surrounding communities of Cascade County and the Rocky Mountain Front. Crews run out to the same nearby cities every week, so an out-of-town job does not mean an out-of-town price.
- Chimney Flashing in Black Eagle, MT — Cascade, population 949
- Chimney Flashing in Malmstrom AFB, MT — Cascade, population 4131
- Chimney Flashing in Sun Prairie, MT — Cascade, population 1615
- Chimney Flashing in Gibson Flats, MT — Cascade, population 203
- Chimney Flashing in Vaughn, MT — Cascade, population 737
- Chimney Flashing in Ulm, MT — Cascade, population 723
Start on the Great Falls Premium Roofing homepage for a free estimate, or call (844) 511-2320 and describe the job.
Why Great Falls Chooses Great Falls Premium Roofing
- ✓We schedule replacements around the seasons when shingle sealant can actually bond, and we will tell you to wait when waiting is right.
- ✓Every cold-season installation gets hand-sealed tab by tab with roof cement, a slow step most crews skip and nobody can see afterward.
- ✓We default to concealed-clip standing seam on long panel runs because exposed fasteners cannot survive the movement our temperature swings create.
- ✓Inspection reports come with dated photographs, marked test squares, and a plain statement of remaining service life, whether or not you hire us.
The standards behind chimney flashing
Quality here is not a matter of opinion — it is written down. The chimney flashing work we do in Great Falls follows published industry standards: NRCA publishes the Roofing Manual, the industry's reference for details and slope minimums, and Asphalt Roofing Manufacturers Association sets the shingle application and ventilation guidance the warranties reference. If a contractor cannot tell you which standard a detail comes from, that is worth asking about before you sign.
Every chimney flashing project in Great Falls gets the same attention, whether it is a single room or a full commercial job. We show up on schedule, keep the site clean, and stand behind the work — the estimate is free and there is no pressure.
Ready to get started? Call (844) 511-2320 for a free chimney flashing free estimate in Great Falls, or request a quote and we'll get right back to you.