Roofing Services in Lockport, IL – Repairs, Replacements & New Installs

Why choose DNS Exterior:

• Over 10 years serving Lockport and nearby areas
• Licensed, bonded, and insured roofing contractors
• High-quality materials from top manufacturers
• Transparent pricing and honest recommendations

Missing, cracked, or curling shingles

Shingles that are loose, lifting, curling at the edges, or visibly cracked are no longer able to protect your roof system. These issues typically arise due to sun exposure, age, or severe storms—and they increase your risk for leaks.

Interior water stains or ceiling leaks

Water spots on your ceiling or walls often mean the roof underlayment has failed, or flashing has become damaged. Even small leaks can lead to mold growth, rot, or drywall damage if left unchecked.

Shingle granules in your gutters

Finding dark, sand-like particles in your gutters is a sign your asphalt shingles are breaking down. This usually means your roof is reaching the end of its lifespan—and it’s time to think about replacement.

Visible sagging or dips in the roofline

A sagging roof isn’t just cosmetic—it can indicate problems with the roof decking or underlying structural supports. This is a serious safety issue and should be assessed immediately by a licensed roofing contractor in Lockport.

Roof Replacement

We remove aging or damaged roofing systems and install new, durable materials that improve your home’s curb appeal and energy efficiency. Our team handles tear-offs, decking inspection, and full system rebuilds using top-rated brands like GAF and Owens Corning.

Roof Repair & Leak Protection

Whether it’s a small leak, loose flashing, or cracked shingles, DNS Exterior provides targeted roof repairs that prevent further damage. We respond quickly and ensure every repair is built to last—especially important during the freeze–thaw cycles common in Illinois.

Storm & Hail Damage Restoration

After severe weather, roof damage isn’t always obvious. We perform post-storm inspections, document findings, and help you file your insurance claim—then restore your roof with expert repairs or full replacement as needed.

Insurance Claim Assistance

Navigating roof claims can be stressful. Our team knows how to speak the language of adjusters and help you get fair coverage. We’ll meet with your insurance rep on-site, provide accurate assessments, and ensure your repairs stay compliant with claim approvals.

Gutter Replacement & Drainage

Roofing and gutters work together. If your roof is being replaced or you’re noticing drainage issues, we offer seamless gutter replacement services to ensure rainwater is properly directed away from your home and foundation.

Architectural Asphalt Shingles

We install architectural (also known as dimensional) asphalt shingles from leading brands like GAF®, Owens Corning®, CertainTeed®, and IKO®. These shingles are thicker, more wind-resistant, and offer deeper texture and color variation compared to traditional 3-tab options.

✅ Ideal for residential homes
✅ Rated for high wind resistance
✅ Come with 30-year to lifetime warranties

Roof Decking Replacement

If your old roof has experienced leaks or wood rot, we inspect and replace any compromised plywood or OSB decking beneath the shingles. This ensures your new roofing system has a solid, long-lasting foundation.

🔎 Many roofing companies skip this step—we don’t.

Synthetic Underlayment

We use modern synthetic underlayments instead of outdated felt paper. These advanced barriers offer better moisture protection, resist wrinkling, and enhance durability beneath shingles.

✅ Adds a crucial layer of water resistance
✅ Won’t tear or absorb moisture like tar paper

Ice & Water Shield Protection

Illinois winters bring ice dams and freeze-thaw conditions. That’s why we install ice and water barrier membranes in critical areas such as eaves, valleys, and around penetrations to prevent leaks caused by ice buildup.

✅ Especially important for compliance with Illinois roofing codes
✅ Helps prevent interior water damage from ice dams

Ridge Vents & Attic Ventilation Systems

Proper airflow in your attic helps extend your roof’s life and keeps energy bills in check. We install ridge vents, intake vents, and additional systems as needed to ensure your roof breathes properly and stays dry.

✅ Reduces heat buildup in summer
✅ Prevents condensation and mold in winter
✅ May qualify for energy efficiency incentives

Trusted Roofing Brands for Lasting Performance

Strong, long-lasting, and weatherproof roofing systems are what we specialize in installing at DNS Exterior. Our materials are sourced from trusted manufacturers and installed with full attention to code compliance, product warranties, and manufacturer specs.

GAF® Timberline HDZ Architectural Shingles

GAF is North America’s largest roofing manufacturer and the name behind some of the most popular shingles in the country. Their Timberline HDZ line offers advanced algae protection, strong wind resistance, and bold curb appeal in a variety of colors.

IKO® Cambridge Architectural Shingles

IKO’s Cambridge series provides exceptional performance at an affordable price. These laminated shingles mimic the look of natural wood shakes while offering Class A fire resistance and a dimensional finish.

Frequently Asked Questions (FAQs)

Schedule Your FREE Window Consultation Today

If your windows are drafty, outdated, or just ready for a fresh look—let DNS Exterior help. We provide expert advice, premium products, and professional installation with no high-pressure sales tactics.

Roof Replacement Testimonials