Company Facts
Alter Phase Roofing Contracting at a Glance
The work
- Best for
- Staten Island homeowners and landlords who want a licensed local roofer
- Primary service
- Roofing
Where
- Headquarters
- New York, NY
- Service area
- New York
- Emergency service
- Yes, 24/7
Money and guarantees
- Free estimates
- Yes
- Financing
- Not advertised
- Workmanship warranty
- Manufacturer warranty of up to 50 years plus a workmanship warranty, per the company website. Written terms are not published.
Credentials
- NYC home improvement contractor licence
- 2129904-DCWP (reported by the company, not verified)
Editorial Review
Our Take on Alter Phase Roofing Contracting
A licensed Arrochar roofer with a clean five star record and fast response in the reviews we read. The thin company story and mismatched click-to-call number are the reasons to confirm the licence and warranty in writing before signing.
Best forStaten Island homeowners and landlords who want a licensed local roofer
What We Like
- NYC DCWP licence 2129904-DCWP is published on the company website
- GAF Master Elite certified contractor
- 5.0 from 108 Google reviews, with recent reviews spread over several months
- Reviewers report a callback within 10 minutes and a new roof finished in one day
- Emergency tarping and storm damage assessment advertised around the clock
Things to Consider
- The click-to-call number on the website differs from the main number on Google, so confirm which line you reach
- The site shows 0+ counters for years and projects, names no owner and gives no founding year
- Brooklyn, Manhattan, the Bronx and New Jersey are also listed as service areas, and warranty terms are not published in writing
Customer Ratings
Google Reviews for Alter Phase Roofing Contracting
Customer ratings shown here come from Google. They are separate from our editorial review above.
Rating Distribution
- 5 stars100%
iAbout this distribution
The distribution reflects the 111 Google reviews available when this profile's review data was last refreshed on October 28, 2026. Ratings and counts change continuously on Google, so figures here may lag the live profile slightly. We publish only the values returned by the source, never estimates for missing bands.
Recent Google Reviews
Editorial Ranking
Why Alter Phase Roofing Contracting Made Our Top 10
It holds position 6 in 10 Best Roofing Companies in New York, NY (2026).
What They Do
Services Offered
Areas Served
Based in New York, NY.
iAbout service coverage
Coverage is as the business describes it, cross-checked against where its recent documented work is. A company will often travel beyond the areas listed here for a large job and decline a small one at the same distance, so confirm your address before scheduling.
Company Background
About Alter Phase Roofing Contracting
Alter Phase Roofing Contracting lists NYC Department of Consumer and Worker Protection licence 2129904-DCWP and works from 61 Appleby Avenue in Arrochar, on Staten Island's south shore. It holds a GAF Master Elite certification, and its website says it is licensed, insured and bonded. Google shows 5.0 from 108 Google reviews, read October 19, 2026.
The reviews describe a range of jobs. One homeowner expected a new roof to take several days and had it finished in one, said the quoted price was the price paid, and called the crew "true Staten Islanders." Another reported a leak, got a call back within 10 minutes and a same day inspection, and had the roof replaced two days later. A repeat customer first hired the company for a full shingle replacement and later for flat roof and gutter repairs after winter ponding, which took several visits because of the weather. A landlord with two properties hired it for roofing and then for urgent brick and concrete work.
The website lists residential and commercial roofing, roof replacement, repair and inspection, asphalt shingle and metal roofing, flat roofing in TPO, EPDM and PVC, skylights, siding and gutters. It advertises free inspections and estimates, emergency tarping and storm damage assessment around the clock, and a manufacturer warranty of up to 50 years alongside a workmanship warranty. Google lists hours as Monday to Friday 8 to 8 and Saturday 8 to 5, closed Sunday.
Some gaps are worth knowing. The site also names Brooklyn, Manhattan, the Bronx and New Jersey as places it works, so this is a Staten Island base that travels. The counters for years in business and projects completed show 0+, which looks like template leftovers, and the site gives no founding year and no named owner. The click-to-call button on the website uses a different number from the main one on Google, so use (929) 370-1552 as listed here.
Alter Phase Roofing Contracting suits Staten Island homeowners and small landlords who want a licensed roofer close to home and a quick callback. It suits less well anyone who wants a named owner, a founding date or written warranty terms before they even call. Before booking, look up licence 2129904-DCWP on the NYC DCWP home improvement contractor lookup, ask who pulls permits with the NYC Department of Buildings, and get the warranty in writing.
iWhere this information comes from
Company history, ownership and capability details on this page are provided by the business and reviewed by our editors for plausibility and consistency. They are not the same as the credentials block, where each item carries its own verification status and source.
Other Sources
Reputation by Source
We show each source separately rather than blending them into a single score, because they measure different things.
Pricing
Company Pricing & Estimates
What this company publishes about its own pricing.
- Free estimates
- Yes
- Emergency callout
- Available 24/7
- Workmanship warranty
- Manufacturer warranty of up to 50 years plus a workmanship warranty, per the company website. Written terms are not published.
Gallery
Project Photos
Business-submitted, reviewed by our editors
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Alter Phase Roofing Contracting FAQs
Is Alter Phase Roofing Contracting licensed in New York City?
Alter Phase Roofing Contracting publishes NYC Department of Consumer and Worker Protection licence 2129904-DCWP on its website. The site also says the company is licensed, insured and bonded and holds a GAF Master Elite certification. New York State has no statewide roofing licence, so check the number on the NYC DCWP home improvement contractor lookup and ask about permits with the NYC Department of Buildings before you sign anything.
What are Alter Phase Roofing Contracting's hours and do they do emergency roof repairs?
Google lists Alter Phase Roofing Contracting as open Monday to Friday from 8 to 8 and Saturday from 8 to 5, closed on Sunday. The company advertises emergency tarping, damage assessments and repairs around the clock. One reviewer reported a callback within 10 minutes of a leak call and a same day inspection, so response time looks quick, though it is worth confirming how after hours calls are handled.
What warranty does Alter Phase Roofing Contracting offer and where does it work?
The company says its work carries a manufacturer warranty of up to 50 years plus a workmanship warranty, but it does not publish the workmanship terms, so ask for them in writing. It is based at 61 Appleby Avenue in Arrochar on Staten Island and also lists Brooklyn, Manhattan, the Bronx and New Jersey on its website. Free inspections and estimates are offered by phone or through the site form.
Is Alter Phase Roofing Contracting licensed and insured?
We checked 0 of 2 credentials against the issuing authority. Verified items carry the date we checked; reported items are what the business told us and we could not independently confirm.
What areas does Alter Phase Roofing Contracting serve?
New York. Coverage is as the business describes it, cross-checked against where its recent documented work is. Confirm your address before scheduling, particularly at the edge of a service area.
Does Alter Phase Roofing Contracting offer emergency service?
Yes, the company lists emergency availability. Response time depends on demand, and after a storm every company in the market is stretched.
What warranty do they offer?
Manufacturer warranty of up to 50 years plus a workmanship warranty, per the company website. Written terms are not published.. There are usually two warranties on a job: the manufacturer covers materials, the contractor covers workmanship. Get both in writing and check whether the workmanship coverage transfers if you sell.
How was this profile built?
Credentials come from issuing authorities, ratings from the company's Google Business Profile with the date we read them, and the editorial take from our own review of estimates, warranty documents and public feedback. Anything the business told us is labelled as reported.
Can a business pay to improve its profile?
A business can subscribe to manage its own listing details, and it can buy a labelled sponsored placement. Neither changes a ranking position or the editorial assessment on this page.
Is Something Incorrect?
Business information changes. Tell us about an address, phone, website, service area, credential or ownership change, or let us know if this company has closed.
Suggest an UpdateOwn Alter Phase Roofing Contracting?
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iWhat claiming does
Claiming lets you correct and maintain the factual information on this profile. Claiming or upgrading a profile does not guarantee inclusion in a TenBestFind ranking and never affects ranking position, which is decided editorially.
About This Business Profile
- Last reviewed
- October 2026
- Profile last updated
- November 11, 2026
- Google review data updated
- October 28, 2026
- Sources checked
- Issuing authorities, Google Business Profile, Company website
- Could not verify
- NYC home improvement contractor licence (reported only), insurance, founding year
- Sponsorship status
- No commercial relationship






