Chimney & Flashing Repair in Northglenn, Colorado

The chimney is the most common roof leak in the Front Range. The flashing seals the gap between the chimney and the roof, and the snow and the melt find every gap. Chimney and flashing repair in Northglenn fixes the leaks and protects the chimney.

Signs Your Northglenn Chimney Flashing Needs Repair

• The water stains on the ceiling near the chimney — the flashing is leaking and the water is running down the chimney
• The mortar is crumbling on the chimney — the water is getting behind the flashing and the freeze-thaw cycle is damaging the mortar
• The rust or the corrosion on the flashing — the snow and the ice are corroding the metal
• The sealant is cracked or missing — the tar or the caulk at the flashing joint is failing
• The chimney is leaning or the brick is spalling — the water damage is structural

Why Northglenn Chimneys Need Flashing Repairs

The chimney is the roof penetration that takes the most weather. The snow piles against the flashing and the freeze-thaw cycles corrode the metal. The melt tests the joints and the sealant cracks.

The step flashing is the key. Each piece of flashing steps up the side of the chimney and the counter flashing covers the top edge. If the step flashing is corroded or the counter flashing is loose, the water runs behind the flashing and into the house.

How We Repair Chimney Flashing in Northglenn

1. Inspect the chimney — check the step flashing, the counter flashing, the mortar, and the cricket
2. Remove the old sealant — clean the old tar and caulk from the flashing joints
3. Replace the damaged flashing — remove and replace the corroded step flashing or counter flashing
4. Install the new flashing — bend and fit the new flashing, caulk the joints
5. Test the repair — run water down the chimney and check for leaks

Chimney Flashing Repair Costs in Northglenn

Service	Typical range	What’s included	Warranty
Flashing reseal	$500 – $1,000	Clean and reseal the flashing joints	2 years
Step flashing replacement	$1,000 – $1,800	Replace the step flashing, caulk	5 years
Counter flashing replacement	$700 – $1,400	Replace the counter flashing, regrout	5 years
Full chimney flashing system	$1,500 – $3,200	Replace all flashing, cricket, caulk	10 years

Preventing Roof Problems in Northglenn

• Check the chimney flashing each spring — the snow melt reveals the leaks
• Check the mortar each year — the crumbling mortar means the water is getting in
• Check the flashing for the corrosion — the snow and the ice corrode the metal
• Check the cricket — the cricket diverts the water around the chimney

Expert tip: in Northglenn, the chimney flashing is the most common roof leak. The step flashing needs to be woven into the shingles, not just caulked on the surface. The caulk fails and the water runs behind the flashing.

Serving Northglenn and Nearby Areas

We repair chimney flashing across Adams and Weld County — Northglenn, Denver, Thornton, Westminster, Brighton, and the surrounding Front Range communities.

FAQ

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Start with a free chimney flashing inspection and estimate. Call us today for local crews.