Metal Flashing Installation
Metal Flashing Installation in Denver, Colorado
Protecting Your Roof’s Most Vulnerable Points
Metal flashing is the unsung hero of roof durability. These thin metal strips seal the critical gaps where your roof meets walls, chimneys, valleys, skylights, and gutters—the exact locations where water infiltration causes the most devastating damage. At Core Roofing Systems, we’ve spent 25+ years installing professional-grade metal flashing that keeps Denver homes dry through intense storms, rapid snowmelt, and the region’s harsh freeze-thaw cycles. Whether you’re replacing failing flashing on an existing roof or installing new flashing during a complete roof replacement, our team ensures every seal is watertight, properly sloped, and built to last decades. We don’t take shortcuts with flashing—it’s too important.
Why Choose Core
Why Choose Core Roofing for Metal Flashing Installation
25+ Years of Denver Roofing Experience
We’ve installed and maintained thousands of metal flashing systems across Denver’s challenging climate. We understand the specific weather patterns that stress flashing: the intense UV exposure at Denver’s high elevation, the dramatic temperature swings that cause metal expansion and contraction, heavy snowmelt that tests every seal, and ice dams that force water under flashing if it’s not properly designed.
Owens Corning Platinum Preferred & Versico Authorized Contractor
Our certifications mean we’re officially trained on the highest-quality materials and manufacturer best practices. We don’t cut corners with off-brand flashing, improper overlap, or amateur sealing techniques that fail in two or three years. Every installation reflects manufacturer standards and our core commitment to “Doing it Right Matters.”
Comprehensive Flashing Coverage for Every Roof Type & Penetration
From chimney toppers to roof valleys to drip edge, vent flashing, and complex transitions at dormers and skylights, we handle every flashing type a residential, commercial, or multifamily roof needs. We don’t skip problem areas or assume “it’s fine from the last contractor.”
5-Year Workmanship Warranty on All Flashing Work
If flashing we install fails due to workmanship error, poor sealing, improper slope, or installation defects, we fix it at no charge for five full years. Combined with Owens Corning’s material warranties, your flashing investment is protected both ways—against installer mistakes and material defects.
Denver-Based, Locally Accountable Contractor
We’re locally owned and operated, not a national franchise that disappears after the invoice is paid. We’ve been recognized by the BBB as A+ Accredited and honored with the Pinnacle Award in 2014. We’re members of the Denver Metro Chamber of Commerce and Lakewood Chamber of Commerce.
Proactive Leak Prevention Saves Thousands in Interior Damage
Water doesn’t just seep quietly. It travels along framing, insulation, and interior walls until it pools in attics, walls, crawlspaces, and basements—places you can’t see until damage becomes catastrophic. Our flashing work stops water at the source—at the roof penetration—preventing it from ever traveling into your home’s interior.
Get Started
Get Your Metal Flashing Inspected Today
Metal flashing often fails silently. Interior water stains appearing on upper-floor ceilings, mold growth in attics, soft spots in drywall, or musty smells in crawlspaces may all be signs that flashing failed months ago. We offer a free flashing inspection during comprehensive roof assessments or as a standalone service. We’ll climb your roof, document existing conditions with photos, identify failing seals, spot missing caulk, flag rusted edges, and test slopes to ensure water is draining properly.
If we find problems, we’ll explain what’s failing, why it matters, and what repair options exist. No pressure, no hidden upsells—just honest assessment and clear next steps.
Contact Us
Our Process
How We Install Metal Flashing the Right Way
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01
Detailed Site Assessment & Measurement
Before a single sheet of metal is cut, we conduct a thorough roof inspection to identify all flashing points: chimneys, vent penetrations, skylights, valleys, dormers, step flashing along walls, and any other transitions. We photograph existing conditions in detail, noting water stains, previous repairs, and deterioration patterns. We measure each area with precision, documenting slope angles, roof dimensions, and material conditions.
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02
Material Selection & Preparation
We source flashing materials that match your roof type and climate resilience needs. For Denver’s intense UV exposure and snowmelt patterns, we recommend designs with proper slope angles that shed water immediately rather than allowing pooling. We pre-cut all flashing at our shop to exact measurements, ensuring tight fits and minimal on-site adjustments that compromise seals.
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03
Old Flashing Removal & Substrate Preparation
If replacing existing flashing, we carefully remove old material without damaging the underlying roof structure or framing. We inspect the substrate—the wood sheathing, masonry, or metal beneath—and repair any rot, gaps, or deterioration. A good flashing seal is only as strong as what it sits on. We clean and prime surfaces as needed so new flashing bonds properly and seals are watertight.
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04
New Flashing Installation & Professional Sealing
This is where precision matters most. We install new flashing with proper overlap, slope, and fastening—following manufacturer specs exactly. For chimney flashing, we install cricket flashing to shed water around the stack. For roof valleys, we ensure the center seam slopes steeply enough to direct water downslope at sufficient angle. We use roofing cement, caulk, and fasteners rated for Colorado weather.
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05
Final Inspection, Testing, Cleanup & Warranty Documentation
Once flashing is installed, we conduct a final inspection of every seam, slope, and fastener. We test water flow along valleys and around chimneys to confirm proper drainage. We clean up all debris thoroughly and protect your landscaping from dropped materials. We document the work with professional photos and provide detailed warranty paperwork that specifies what was installed, materials used, work date, and your 5-year protection coverage.
Have Questions?
Frequently Asked Questions About Metal Flashing
Flexible Financing
Flexible Financing for Your Denver Roof Project
A new roof shouldn’t be the reason a family raids their emergency fund. We offer flexible financing options for qualified homeowners so you can move forward on the work your home needs without waiting for the perfect moment. We’ll walk through options during your estimate so you know exactly what the monthly cost looks like before you commit.
Flexible Payment
Options for full replacements and repair projects.
Quick Approval
Simple application with fast decisions.
No Penalties
No prepayment penalties, ever.
Competitive Rates
Low rates for qualified homeowners.
No Hidden Fees
Clear, written terms before any work begins.
We Handle It
Paperwork handled in person with your estimator.
Our Service Areas
Denver Metro Roofing Service Area
We serve homeowners, property managers, and commercial clients across the entire Denver Metro region. Below are the communities where we work every week:
Serving Central Denver
Not sure if you’re in our service area? Call 303-295-2220 — and find out how we can help you.
Local Expertise
Metal Flashing Installation Across the Denver Metro
We serve 15 primary cities across the Denver Metro region and are expanding coverage regularly. Whether you’re in Aurora, Boulder, or anywhere in between, we’re equipped to handle your flashing installation with the same precision and warranty we bring to every project.
Aurora & Centennial
East Metro coverage with rapid response times and deep experience with suburban home styles requiring comprehensive flashing work.
Englewood & Greenwood Village
South Denver neighborhoods featuring complex roof architectures and higher-end homes requiring meticulous flashing work.
Lakewood & Arvada
West Metro service including foothills homes that face unique weather exposure and elevation challenges requiring robust flashing design.
Westminster & Broomfield
Northern Denver suburbs with active storm seasons requiring robust flashing design and installation.
Parker, Castle Pines & Lone Tree
Southeast Metro specialization serving upscale communities with premium roofing standards and complex flashing requirements.
Highlands Ranch
South Metro service for larger properties and multi-structure homes requiring comprehensive flashing coverage.
Brighton
Northeast coverage for growing suburban communities with diverse flashing needs.
Evergreen
Foothills homes with challenging elevations, significant snowfall, and complex roof designs requiring expert flashing work.
Boulder
Northern metro area with specialty roofing needs and strict architectural standards requiring precision flashing installation.
Doing It Right Matters
Protect Your Home with Professional Metal Flashing Installation
Metal flashing is one of the smallest investments you can make to prevent catastrophic water damage. A single interior leak—from failed flashing—can cost $5,000–$15,000+ to repair (framing replacement, insulation replacement, drywall repair, mold remediation). For the cost of professional flashing installation and our 5-year warranty, you’re protecting your entire home against one of the most common roof failure points.
If you’re concerned about chimney flashing deterioration, valley leaks, missing or damaged drip edge, or any other flashing issue, don’t wait. Water damage spreads silently through attics and walls. The longer you delay, the more expensive repairs become. Contact us for a free flashing inspection—we’ll identify problems early and fix them before they become expensive disasters. Our flexible financing options make professional flashing installation affordable and accessible.
“Doing It Right Matters.”