Alter Phase Roofing

in Gramercy Park, New York, New York

4.9/5 (124 reviews) 15 years experience

Costs: .

Why Choose Alter Phase Roofing?

Expertise & Experience

Alter Phase Roofing specializes in Roof repair, Roof replacement, Flat roofing systems with 15 years of experience in Gramercy Park, New York, New York.

Quality Materials

Using asphalt shingles, metal roofing suited for New York’s climate, ensuring durability.

Certified & Insured

Holds NYC Department of Buildings licensed, CertainTeed SELECT ShingleMaster certifications and is fully insured for New York projects.

Competitive Pricing

Pricing from . Detailed costs: Roof Repair: $800-$4,000 Roof Replacement: $12,000-$30,000 Note: Premium pricing reflects Manhattan expertise and high-quality materials. .

Services & Pricing

Our Services

  • Roof repair
  • Roof replacement
  • Flat roofing systems
  • TPO roofing
  • EPDM roofing
  • PVC roofing
  • Asphalt shingles
  • Slate roofing
  • Metal roofing
  • Commercial roofing
  • Residential roofing
  • Emergency roof repairs

Detailed Pricing

ServiceEstimated Cost
Roof Repair: $800-$4,000 Roof Replacement: $12,000-$30,000 Note: Premium pricing reflects Manhattan expertise and high-quality materials

*Costs vary by project in Gramercy Park. Contact for a precise quote.

Why Trust Alter Phase Roofing?

Certifications

  • NYC Department of Buildings licensed
  • CertainTeed SELECT ShingleMaster
  • GAF Master Elite Contractor

Rating Breakdown

5 Stars74 reviews

4 Stars31 reviews

3 Stars12 reviews

2 Stars4 reviews

1 Stars2 reviews

Awards

Trusted by New York with a 4.9/5 rating.

Contact Alter Phase Roofing

Contact Details

Address: 125 E 23rd St, New York, NY 10010, Gramercy Park, New York, New York 10010

Phone: (646) 783-2145

Email: Contact via website

Insurance: Fully insured with $2M general liability coverage

Get a Free Quote

Opening Hours

Monday8:00 AM - 6:00 PM
Tuesday8:00 AM - 6:00 PM
Wednesday8:00 AM - 6:00 PM
Thursday8:00 AM - 6:00 PM
Friday8:00 AM - 6:00 PM
Saturday9:00 AM - 4:00 PM
SundayBy appointment

Testimonials

"Alter Phase handled my Upper East Side townhouse roof replacement with incredible attention to detail. Their knowledge of NYC building codes and historic preservation requirements was impressive."

– David M., Gramercy Park

"After several leaks in our Tribeca loft, Alter Phase diagnosed and fixed issues that two previous companies missed. Their flat roof expertise is unmatched."

– Jennifer K., Gramercy Park

Rating History

Frequently Asked Questions

How do you handle the logistics of roofing in dense Manhattan neighborhoods?

We have specialized equipment and protocols for working in congested areas, including coordinating with building management, arranging proper permits, and ensuring minimal disruption to neighbors.

What roofing materials are best suited for Manhattan's weather conditions?

For flat roofs common in Manhattan, we recommend TPO, EPDM, or PVC membrane systems. For sloped roofs, architectural shingles, slate, or metal roofing provide excellent durability against NYC's variable weather conditions.

Do you work with co-op and condo boards?

Yes, we have extensive experience working with Manhattan co-op and condo boards, helping navigate approval processes and ensuring all work meets building requirements and NYC regulations.