Roofing Company in Columbia NJ | Alte Roofing & Siding

Looking for a trusted roofing company in Columbia NJ? Alte Roofing is a licensed roofing company in Columbia, NJ, providing professional roof replacement in NJ backed by 25 years of craftsmanship as Certified GAF Roofing Contractor in Columbia NJ 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.

Columbia NJ Roof Replacement

Our roof replacement in Columbia, 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 Columbia NJ Homeowners Trust Alte Roofing & Siding

Over 20 Years of Experience
GAF Master Elite® Certified 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 Columbia NJ

Columbia is a small but historic unincorporated community in Warren County, New Jersey, nestled within Knowlton Township. Spanning just 0.13 square miles, Columbia is home to around 200 residents, giving it a tight-knit, rural charm. This quiet hamlet once featured the Columbia Lake Dam on the Paulins Kill, which was removed in 2018 to improve ecological conditions and fish migration. With its scenic setting near the Delaware River, Columbia offers peaceful landscapes, historic character, and a deep sense of hometown community.

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

Proudly Serving Columbia & Surrounding Warren County Towns

In addition to Columbia, Alte Roofing & Siding serves nearby areas including:

Washington, NJ
Hope, NJ
Belvidere, NJ
Stewartsville, NJ
Blairstown, NJ
Broadway, NJ
Hackettstown, NJ
Mansfield, NJ

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

Get a Free Roofing or Siding Estimate in Columbia, 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 Columbia, NJ. Your home deserves the care of an experienced, certified roofing and siding team.

Recent 5-Star Google Review

” A five star roofing job! Perfect from beginning to the end! Super clean up after the roof was completed!” – Columbia NJ

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

Roofer and Roofing Company in Columbia NJ