Roof replacement in Brooklyn, done properly from the deck up
Many Brooklyn roofs have three or four layers of patches and old roofing on them. We strip it back, fix the deck and drainage, and install a new roof with warranties that last decades.
- Flat roofs for row homes, shingles for houses
- Permits, board paperwork and insurance certificates handled
- Up to 50-year material, 25-year workmanship warranties
- 5.0 from 154 reviews
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Get your free roof estimate
Step 1 of 3Takes 30 seconds. A real person from our team calls you back, usually within the hour.
A roof replacement in Brooklyn typically costs $6,500–$17,000 for a 1,000 sq ft flat roof and more for larger or pitched roofs. Brooklyn costs more than Staten Island or Queens because of row-home access, attached walls, brownstone details and board requirements. Most replacements take a few days.
- 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
What a Brooklyn roof replacement includes
Tear-off of old layers
Brooklyn roofs often have several. Removing them reveals rot and lets the new roof sit flat and drain properly.
Deck repair
Rotted planks and plywood replaced before anything new goes down.
Insulation & drainage
Tapered insulation or crickets where water used to pond; insulation to meet the NYC Energy Code.
New membrane or shingles
EPDM, TPO or modified bitumen for flat roofs; GAF architectural shingles for pitched roofs.
Parapets & flashing
New flashing up the parapet walls, tied into your neighbors' roofs, plus coping repairs.
Permits & paperwork
DOB permits, Local Law 92/94 review and co-op/condo board documentation when needed.
Brooklyn-specific things we plan for
- Attached buildingsyour new roof has to tie cleanly into the roofs next door.
- Accessno driveways, so we plan material hoisting and debris removal around street parking and neighbors.
- Landmarkshomes in historic districts like Park Slope, Brooklyn Heights or Fort Greene may need Landmarks Preservation Commission approval for visible changes.
- Cool roofsmost low-slope roofs need a reflective surface under NYC code.
Want the numbers first? Read our full Brooklyn roof replacement cost guide, or the citywide NYC roof replacement guide covering permits and contractor checks.
What roof replacement costs in Brooklyn
Averages from our own jobs. Your exact price comes in writing after a free inspection.
Flat roof replacement by borough (≈1,000 sq ft)
New flat roof, installed · Brooklyn
New asphalt shingle roof, installed · Brooklyn
Alter Phase Roofing Contracting job averages, updated October 26, 2026. Your exact price comes from a free on-site inspection.
From 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 Brooklyn customers say
“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 quickly for a few days later and by the middle of the afternoon everything was done and it looks great!”
“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…”
“10/10 would recommend! This is the second time I've used this company, and they've been excellent both times. The first time was a few years ago for a full shingle replacement. Most recently, I called them back to repair my flat roof and gutter system after a rough winter caused pooling and a leak. They came out the very next day to…”
Roof replacement: your questions, answered
Don't see yours? Call or text and you'll talk to someone who actually works on roofs.
(929) 370-1552Roof replacement: common questions
How much does a new roof cost in Brooklyn?
About $6,500–$17,000 for a typical 1,000 sq ft flat roof. Shingle roofs on detached homes in southern Brooklyn run about $3–$10 per sq ft installed. The number of old layers, deck repairs, parapet work and access make the biggest difference.
Do co-op and condo buildings need board approval?
Yes, regardless of whether a DOB permit is needed. Boards usually ask for a scope of work, insurance certificates and a contractor application. We prepare those documents; allow a few weeks for approval.
How long does a roof replacement take on a Brooklyn row home?
Usually a few days, depending on size, layers to remove and weather. We keep the roof watertight at the end of every day.
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.