Roof repair in Brooklyn: leaks traced and fixed at the source
On a Brooklyn row home, the stain on your ceiling is often feet away from where the water gets in. We find the real entry point, whether that's a seam, a parapet, a drain or your neighbor's flashing, and fix it properly.
- Flat roof, parapet and party-wall leaks, found with infrared cameras
- Same-day emergency response, 24/7
- Photos before and after, written warranty
- 5.0 from 154 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.
Most roof repairs in Brooklyn cost $400–$1,500: flat roof leak repairs $400–$1,200, flashing replacement $450–$900, and storm or parapet damage $1,500–$3,500. The most common Brooklyn leak sources are open seams, parapet flashing, clogged drains and failed skylight seals.
- Infrared leak detectionHidden moisture found, no guesswork
- Written price in 24 hoursItemized, no pressure
- Emergency calls 24/7We stop the water first
- Up to 50-yr warrantyPlus 25 yrs on workmanship
The Brooklyn roof leaks we fix most
Parapet flashing
Where the flat roof turns up the brick parapet. Cracked flashing and loose coping let water run into the walls.
Open seams
EPDM and TPO seams that have lifted with age or heat. We clean, prime and re-seal or re-weld them.
Drains & scuppers
Clogged or rusted drains back water up under the membrane. We clear, repair or replace them.
Penetrations
Vent pipes, HVAC curbs and old antenna mounts, cracked boots and failed sealant.
Skylights & hatches
Old skylights and roof hatches with failed flashing. See skylight repair.
Storm damage
Peeled membrane and torn edge metal after high winds. Emergency repair available 24/7.
How we repair Brooklyn roofs
- Inspect and trace the leak with an infrared (thermal imaging) camera, including the parapets and the neighbor's side where we can see it.
- Photograph the cause and explain it in plain English.
- Written quote, usually within 24 hours.
- Repair with compatible materials and fix the drainage or flashing problem behind it.
- Warranty in writing, with after photos.
If your roof is past repairing, see roof replacement in Brooklyn or our Brooklyn flat roofing page.
What roof repair costs in Brooklyn
Averages from our own jobs. Your exact price comes in writing after a free inspection.
Roof repair prices · Brooklyn
Repair cost by size of the job · 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…”
“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…”
“Alter Phase Roofing Contracting is a very good company. My new roof they installed just in one day, very professional and responsive. Clean very nice after the job and very friendly. The new roof has withstood several heavy rainstorms without any leaks. They are very respectful to come back inspected whole roof to make sure no any…”
Roof repair: your questions, answered
Don't see yours? Call or text and you'll talk to someone who actually works on roofs.
(929) 370-1552Roof repair: common questions
How much does roof leak repair cost in Brooklyn?
Most flat roof leak repairs cost $400–$1,200. Flashing replacement is typically $450–$900 and larger storm or parapet repairs $1,500–$3,500. We give a written price after inspecting the roof.
My neighbor's roof is causing my leak. What can be done?
It's common on attached row homes. We document where the water is coming from with photos, repair your side and the shared flashing where we can, and give you what you need to talk to your neighbor or their insurer.
Can you repair just part of a flat roof?
Yes, if the rest of the membrane is in good shape. If the roof is old and the insulation is wet over a large area, we'll tell you honestly that a replacement will save money.
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.