Limited time offers. Mention at time of estimate. Cannot be combined.
Your Trusted Roofing, Siding & Chimney Pros on Long Island
Professional exterior services for Nassau and Suffolk County homeowners. GAF Master Elite® certified. Licensed, insured, and backed by lifetime warranty options.
Our Exterior Services
Long Island Exterior Co. provides comprehensive exterior renovation services across Nassau and Suffolk County.
Roof Replacement
Complete tear-off and replacement with premium materials. GAF Master Elite certified. Asphalt, metal, flat roof, and more.
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Siding Replacement
Transform your home with vinyl, James Hardie fiber cement, LP SmartSide, or insulated siding. Expert installation.
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Chimney Services
Repair, rebuilding, cap installation, flashing, liner replacement, and waterproofing for Long Island chimneys.
Learn MoreWhy Long Island Homeowners Choose Us
Licensed, insured, and certified — with a decade of protecting Long Island homes.
GAF Master Elite® Certified
Only 1% of roofers nationwide earn this distinction — better materials, stronger warranties, superior workmanship.
Local Long Island Expertise
We understand nor'easters, salt air, ice dams, and the building codes across every Nassau and Suffolk County town.
No Subcontractors — Ever
Every project is completed by our trained, in-house crew. Your home is never handed off to strangers.
Lifetime Warranty Options
GAF Golden Pledge® lifetime coverage — the industry's strongest manufacturer warranty, available on qualifying installations.
Free Estimates & Inspections
Detailed, transparent proposals with no hidden fees. We never charge for inspections or quotes.
4.9 Stars — 247 Reviews
Consistently rated among the top exterior contractors on Long Island by homeowners just like you.
Serving All of Long Island
From Great Neck to Montauk, Long Island Exterior Co. provides professional exterior services across 200+ communities in Nassau and Suffolk County.
14 S Carll Ave, Babylon, NY 11702
View on Google Maps →Nassau County
Suffolk County
How It Works
From first call to final walkthrough, our process is designed to be simple, transparent, and stress-free.
Call or Request Online
Reach out by phone or through our website. We respond within 1 business day.
Free Inspection
Our expert visits your property for a thorough, no-obligation assessment.
Detailed Estimate
Receive a transparent, itemized proposal with material options and timeline.
Expert Installation
Our in-house crew completes your project on schedule with a full warranty.
What Our Customers Say
Rated 4.9 out of 5 based on 247 reviews
Michael R.
Levittown, NY
★★★★★
“Long Island Exterior Co. replaced our entire roof in just 2 days. The crew was professional, cleaned up everything, and the new roof looks incredible. Our GAF warranty gives us peace of mind for years to come.”
Susan T.
Huntington, NY
★★★★★
“We got quotes from 4 different companies for our siding project. Long Island Exterior Co. wasn't the cheapest, but their knowledge of James Hardie products and attention to detail made them worth every penny. Our home looks brand new.”
Robert K.
Babylon, NY
★★★★★
“Our chimney was in bad shape after years of coastal weather. They did a full rebuild above the roofline, installed a new stainless cap, and waterproofed everything. Excellent work and fair pricing.”
Jennifer M.
Garden City, NY
★★★★★
“After the storm damaged our roof, they helped us through the entire insurance claim process. They documented everything, met with the adjuster, and made sure we got fair coverage. The new roof was installed perfectly.”
Frequently Asked Questions
What areas does Long Island Exterior Co. serve?
How much does a roof replacement cost on Long Island?
Are you licensed and insured?
What roofing certifications do you hold?
Do you help with storm damage insurance claims?
What financing options are available?
Expert Guides for Long Island Homeowners
Tips, cost guides, and advice from our team.
The Complete Guide to Roof Replacement on Long Island
Everything you need to know — costs, materials, timeline, and permits.
SidingBest Siding Options for Long Island Homes
Compare vinyl, James Hardie, LP SmartSide, and insulated siding.
ChimneyLong Island Chimney Problems: Common Issues & Solutions
Warning signs, repair vs rebuild, and what to expect.
Flexible Financing Available
Don't let budget concerns delay protecting your home. We offer 0% interest financing options and affordable monthly payment plans for qualifying homeowners.
Ask About FinancingReady to Protect Your Long Island Home?
Get a free, no-obligation estimate for your roofing, siding, or chimney project. Our team responds within 1 business day.