Roofing Company in Andover, NJ | Alte Roofing & Siding

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

From asphalt shingle replacements to commercial flat roofing and James Hardie siding, our licensed team ensures every project is done right—on time, on budget, and built to withstand Sussex County weather.

Roof Replacement Andover NJ

We protect your most valuable asset — your home — with professional exterior upgrades that last:

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

Our expert team ensures everything is built to code and energy-efficient.

Commercial Flat Roofing in Andover, NJ

We specialize in commercial roofing services for warehouses, schools, office buildings, and retail centers:

TPO & EPDM Flat Roofing
Solar Integration for Commercial Roofs
Flat Roof Repair & Leak Detection
Full Roof Replacements & Roof Coating
Maintenance Programs for Property Managers

Our licensed and insured team keeps disruption minimal and delivers long-term protection with competitive warranties.

About Andover NJ

Andover, New Jersey, is a scenic community in Sussex County known for its small-town charm, historic character, and proximity to beautiful natural landscapes like Kittatinny Valley State Park. Families and businesses enjoy the area’s mix of rural tranquility and easy access to major highways, making it a desirable location for homeowners seeking both comfort and convenience.

With a strong sense of community, top-rated schools, and outdoor recreation opportunities, Andover continues to attract residents who value quality of life and peaceful living while staying connected to northern New Jersey and New York City. For more information, visit the official Borough of Andover website.

Customer Review from Sussex County

“Alte Roofing was incredible. From the estimate to final installation, they were timely, professional, and left our property spotless. Our new roof is beautiful and we feel more protected than ever.”
— Andover, NJ

Get a Free Estimate from Newton’s Roofing Experts

25+ Years Serving Sussex County. With transparent pricing, top warranties, and unmatched expertise, Alte Roofing & Siding makes your home or business exterior upgrade simple and stress-free.

20+ Years Serving Sussex County
Fully Licensed & Insured in NJ
GAF Master Elite® Contractor – Top 2% of U.S. roofers
Trusted team for residential and commercial exteriors
Transparent pricing and 5-star customer service
Backed by industry-best warranties

Call (908) 850-8558 or visit www.alteroofing.com to request your free estimate.

Proudly Serving Sussex County

In addition to Andover NJ including ZIP code 07821, Alte Roofing & Siding serves nearby areas including:

Explore more of our local work by visiting our nearby Hackettstown, NJ service page, where we highlight residential roofing and siding projects in Sussex County.