Roofing in every Staten Island neighborhood, from the North Shore to Tottenville
We're not a Brooklyn company that drives over the bridge. We're based here, so Staten Island is where we're fastest, where most of our work is, and where our customers are our neighbors.
- Shop at 61 Appleby Ave, Staten Island 10305
- Shingle roofs, flat roofs, skylights, gutters and siding
- Fastest emergency response on the island
- 5.0 from 157 reviews
GAF Master Elite®- Lic. #2129904-DCWP
Get your free roof estimate
Step 1 of 3Takes 30 seconds. A real person from our team calls you back, usually within the hour.
Alter Phase Roofing Contracting is a family-owned roofing contractor based on Staten Island, NY. We repair and replace shingle and flat roofs in every Staten Island neighborhood. Most repairs cost $300–$1,200; a new shingle roof runs $3–$10 per sq ft, and a 1,000 sq ft flat roof $5,000–$13,000.
- Free inspection with photosYou see exactly what we see
- Written price in 24 hoursItemized, no pressure
- Most roofs done in 1 dayTear-off to cleanup
- Up to 50-yr warrantyPlus 25 yrs on workmanship
Roofing for every kind of Staten Island home
Staten Island's housing is different from the rest of the city, and so are its roofs. As a Staten Island roofing company based at 61 Appleby Ave, we work on all of them.
Detached & semi-detached homes
Most of the island's houses have pitched asphalt shingle roofs. We replace them with GAF architectural shingles, matched flashing and new gutters when needed.
Townhouses & attached rows
Common in Mid-Island and South Shore developments. Shared roof lines need careful flashing where your roof meets your neighbor's.
Extensions & flat sections
Back extensions, porches and garages often have flat roofs that leak at the wall joint. We repair or replace them in EPDM or TPO.
Two-families & small buildings
Plenty of mixed pitched-and-flat roofs. We handle both on one job.
Local businesses
Storefronts, offices and strip centers along Hylan Blvd, Richmond Ave and Forest Ave. See commercial roofing.
Coastal homes
South and East Shore homes take the brunt of nor'easters. Wind-rated shingles and proper edge details matter here.
Staten Island neighborhoods we serve
North Shore: St. George, Tompkinsville, Stapleton, Clifton, Rosebank, Port Richmond, West Brighton, Livingston, Mariners Harbor, Elm Park, Westerleigh, Castleton Corners.
Mid-Island: Grymes Hill, Silver Lake, Todt Hill, Emerson Hill, Dongan Hills, Grant City, Midland Beach, South Beach, Arrochar, New Dorp, Oakwood, Bulls Head, New Springville, Willowbrook, Heartland Village.
South Shore: Great Kills, Bay Terrace, Eltingville, Arden Heights, Annadale, Huguenot, Prince's Bay, Woodrow, Rossville, Charleston, Pleasant Plains, Tottenville, Travis.
See our neighborhood pages for New Springville, Todt Hill, Arrochar, Great Kills and Tottenville.
Why Staten Island hires us
- We're localWe're based on the Island. When there's a storm, we're already here.
- The owner shows upMarke is part of every job, from the first inspection to the final walkthrough.
- Honest adviceMany calls about a "new roof" end in a repair. We'd rather keep a customer for life.
- Proper credentialsGAF Master Elite®, BBB accredited, licensed by NYC DCWP (#2129904-DCWP) and fully insured.
- Warranties in writingUp to 50 years on materials and up to 25 years on workmanship.
Popular services on Staten Island
Roof repair for leaks and storm damage, roof replacement, skylight repair, flat roofing, gutters and siding. Trying to keep costs down? Read how to get affordable roofing on Staten Island without cutting corners.
What roofing costs on Staten Island
Averages from our own jobs. Your exact price comes in writing after a free inspection.
New asphalt shingle roof, installed · Staten Island
Roof repair prices · Staten Island
Alter Phase Roofing Contracting job averages, updated October 26, 2026. Your exact price comes from a free on-site inspection.
Recent projects in Staten Island
Our own crew on our own jobs. No stock photos.
Full shingle roof replacement
Staten Island, NY 10314
New architectural shingle roof
Staten Island, NY 10305
Flat roof installation
Staten Island, NY
New roof replacement
Staten Island, NYFrom first call to finished roof.
No pushy salespeople and no surprise bills. Every job follows the same four steps.
- Fast scheduling
We inspect your roof
We climb up, scan for hidden leaks with an infrared camera, find the real cause and take photos so you see exactly what we see.
- Within 24 hours
You get a written quote
Clear options, repair or replace, with materials, cleanup and permits itemized. No pressure.
- On your schedule
Our own crew does the work
Marke is part of every job. We protect your property and clean up every day.
- Final walkthrough
Warranty in writing
Up to 50 years on materials and up to 25 years on our workmanship, handed to you.
What Staten Island customers say
“I highly recommend Alterphase Roofing! From start to finish, the experience was excellent. Their team was professional, knowledgeable, reliable, and attentive to every detail. They took the time to explain everything, answered all my questions, and made sure I felt comfortable throughout the process. It's not easy to find a company that truly cares about its customers and takes pride in its work. I really appreciate their honesty, quality of service, and professionalism. I would definitely recommend Alterphase Roofing to anyone looking for a trustworthy roofing company!”
“Called them up thinking I needed a new roof and gutters. They stopped by the same day, gave me an assessment of everything and it turns out the roof was repairable. They didn't try to pressure me into any unnecessary work. Just simply he gave me a couple of prices depending on what I decided to do. They were able to schedule the job…”
“I called for an estimate for a new roof. The price they quoted was way below two other estimates I received. I was also told that it would take 1-2 days to complete. Everything Alter Phase Contracting Inc promised was delivered. They gladly supplied me with their licensing and insurance information. The warranty is printed on my…”
“Just WOW! I expected that this would take several days, they got my new roof done in just 1 day. The guys did a thorough job, from set up to clean up. The price quoted was the price I paid, no gimmicks. True Staten Islanders. My roof looks great, couldn't be more happier. Would recommend to anyone who asks.”
“Marke and his team did an excellent job on replacing my roof! He and his brother came to my house, climbed up the roof to investigate the condition unlike other contractors which were only using a drone to take pictures. He gave me honest opinion and options for replacing my roof. Great communication and very easy to work with during…”
“I called a few roofers & Alter Phase was the only one that returned my call promptly & showed up the next day to give the estimate. They were very detailed in their explanation and immediately put me at ease. They showed up 3 days later and did the work in one day. Every worker on the job was courteous and friendly. My house now…”
Roofing: your questions, answered
Don't see yours? Call or text and you'll talk to someone who actually works on roofs.
(929) 370-1552Roofing: common questions
Where are you based?
Our address is 61 Appleby Ave, Staten Island, NY 10305, and we come to you for every inspection. Call or text (929) 370-1552 Monday to Friday 8am–8pm and Saturday 8am–5pm, and we answer emergency calls 24/7.
Which Staten Island neighborhoods do you serve?
All of them: the North Shore (St. George, Stapleton, Port Richmond, West Brighton), Mid-Island (Dongan Hills, New Dorp, Todt Hill, New Springville), the East Shore (South Beach, Arrochar, Midland Beach) and the South Shore (Great Kills, Eltingville, Annadale, Huguenot, Prince's Bay, Tottenville) and everything in between.
How much does a new roof cost on Staten Island?
Most Staten Island roof replacements cost $10,000–$30,000+. Architectural shingles run $3–$10 per sq ft installed. A 1,000 sq ft flat roof is typically $5,000–$13,000, which is the most affordable of the boroughs because homes are easier to access.
Do Staten Island roofs need permits?
A like-for-like reroof on a one- or two-family home usually doesn't need a DOB permit. Replacing the deck, changing the roof type or commercial work generally does. We check for every job and file when needed.
Get an honest answer about your roof.
Free inspection, photos of what we find and a written quote. If it only needs a repair, we'll tell you.
Prefer to talk? Call or text, emergencies 24/7:
(929) 370-1552- Family-owned, Staten Island based
- Owner on every job
- Written warranties, permits handled
Get your free roof estimate
Step 1 of 3Takes 30 seconds. A real person from our team calls you back, usually within the hour.