Roofing Company in Knowlton Township NJ | Alte Roofing & Siding

Looking for a trusted roofing company in Knowlton Township NJ? Alte Roofing is a licensed roofing company in Knowlton Township, NJ, providing professional roof replacement in NJ backed by 25 years of craftsmanship as a certified GAF Roofing Contractor and professional customer service across Warren County.

Alte Roofing provides roof installation services that include roof replacement, roof repair, commercial flat roofing, and solar roofing. Roof performance and protection start with proper installation—by working with Alte Roofing we will guide you in selecting the right shingles and roofing system for your home. Here are some things to consider for your next roofing project.

Knowlton Township NJ Roof Replacement

Our roof replacement in Knowlton, NJ is handled with expert care to deliver durable results on a schedule that works for you. Our #1 priority is your satisfaction—when you call us for a roof replacement estimate, you’ll get honest guidance and our full attention to your project. Our experienced, fully licensed team offers complete exterior services:

Roofing Services:

Roof Replacement (Shingle & Flat)
Solar Roofing with GAF Energy Solar, fully integrated solar power roofing system
Roof Leak Repair & Emergency Storm Response
Preventative Roof Maintenance & Seasonal Inspections
Ventilation, Flashing & Roof Deck Protection

Siding Services:

James Hardie® Siding Installation – Curb Appeal Upgrades & Color Matching
Vinyl Siding Replacement

Gutter Services:

Gutter Installation
Seasonal Gutter Cleaning & Downspout Maintenance

We work efficiently and cleanly to deliver beautiful, reliable results that stand up to New Jersey’s toughest weather.

Why Knowlton Township NJ Homeowners Trust Alte Roofing & Siding

Over 25 Years of Experience and GAF Presidents Club Award Winner (best amongst GAF Master Elite)
GAF Master Elite® Certified Contractor and Certified GAF Roofing Contractor
Locally Owned & Operated in Warren County
Fully Licensed, Insured & A+ BBB Accredited
5-Star Reputation for Clear Communication & Professionalism
Personalized Solutions & Manufacturer-Backed Warranties

We treat your home like it’s our own — delivering quality on every nail, panel, and shingle.

About Knowlton Township NJ

Knowlton Township is a scenic community in Warren County, New Jersey, bordered by the Delaware River and surrounded by rolling hills, farmland, and natural beauty. Known for its quiet rural character and strong sense of community, Knowlton offers residents a peaceful lifestyle with easy access to nearby towns and major highways. Outdoor enthusiasts enjoy the area’s parks, trails, and riverfront activities, while families value the township’s small-town atmosphere and historic charm. To learn more about township services and community resources, visit the Knowlton Township official website.

Our team understands the character of Knowlton Township NJ homes — and we know how to preserve it while protecting your investment.

Proudly Serving Knowlton Township & Surrounding Warren County Towns

In addition to Knowlton Township NJ, Alte Roofing & Siding serves nearby areas including:

We’re your neighborhood exterior contractor, committed to serving the Warren County community. Explore more of our local work by visiting our nearby Hackettstown, NJ service page, where we highlight residential roofing and siding projects in Warren County.

Get a Free Roofing or Siding Estimate in Knowlton Township NJ

Let Alte Roofing & Siding help you take the next step toward a stronger, more beautiful home. We offer free estimates, fast scheduling, and detailed assessments with no pressure.

Call (908) 850-8558 or contact us online to schedule your free estimate in Knowlton Township, NJ. Your home deserves the care of an experienced, certified roofing and siding team.

5-Star Google Review

”Fantastic crew and company! Dylan met with us many times to work out details. Pricing was fair and Enrique, the manager, was on site every day. The crew was wonderful, always on time, and cleaned up beautifully. Couldn’t recommend them more!”.” – Knowlton NJ

Protect your home with expert roofing and siding from the team Warren County trusts.

Roofer and Roofing Company in Knowlton Township NJ