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ROOFING

(347) 323-9128
  • Service

Flat Roofing

Protect your business and maximize ROI with Proline Roofing's expertise in flat roof systems.

Superior Flat Roofing Solutions for Commercial Buildings

Beautiful new asphalt shingle roof with greenery in the background in Arthur Kill Rd, Staten Island, NY 10306, USA
An ongoing roof replacement project 7.4 miles from our headquarters in Staten Island, NY.
ProLine Roofing's crew replacing a roof in Staten Island. Drone shot

  • Flat roofs are a common and practical choice for many commercial structures, but they require specialized knowledge to ensure optimal performance and longevity. Proline Roofing brings decades of experience and skill to the installation, maintenance, and repair of various commercial flat roofing systems.

    Our Flat Roofing Services:

    • New Installations: Expert installation of TPO, EPDM, PVC, Built-up Roofing (BUR), and other flat roof systems.
    • Roof Replacements: Seamlessly transition to a new flat roof system when it’s time for an upgrade.
    • Repairs: Address leaks, blisters, ponding water, and other flat roof issues with efficiency.
    • Maintenance Programs: Proactive inspections and maintenance to prolong the life of your flat roof.

    Types of Flat Roofing Systems We Install:

    • TPO (Thermoplastic Polyolefin): Energy-efficient, durable, and a popular single-ply membrane.
    • EPDM (Ethylene Propylene Diene Monomer): A long-lasting rubber membrane known for its flexibility.
    • PVC (Polyvinyl Chloride): Highly resistant to chemicals, fire, and punctures.
    • Built-up Roofing (BUR): Traditional layered system with proven durability.
    • Modified Bitumen

    Why Choose Proline Roofing for Flat Roofing:

    • Expertise in Diverse Systems: We are proficient in installing and repairing various flat roof types.
    • Focus on Workmanship: Meticulous installation and attention to detail ensure long-term performance.
    • Safety First Approach: Our rigorous safety protocols protect your property and employees.
    • Minimizing Disruption: We work efficiently to minimize any inconvenience to your business operations.
Accredited Company

Recognized by reputable organizations, highlighting our commitment to industry standards.

Quality Materials

We use premium, long-lasting materials to ensure your roof's durability and protection.

Affordable Pricing

Competitive pricing that offers unmatched value for the quality of workmanship and materials.

Free Estimates

Get a detailed cost breakdown with no obligation, allowing you to make informed decisions.

  • Testimonials

Our Clients Love Us

After that crazy storm, I thought my roof was a goner. Proline came out the same day, patched the leak, and gave me an estimate for the damage. They were honest, the price was fair, and now my roof looks better than ever!
Sarah t.
Staten Island, NY
We would Just like to thank Lonnie for quickly coming to our rescue. My sisters house had roof damage after the last big storm while she was away. I called Proline, they came quickly, gave me a quote that was very reasonable, and a few days later the job was done. Quality work, clean, polite and efficient you couldn't ask for more. I recommend you call them.
Dr. Louis Vastola
Staten Island, NY
I run a small business, and when my roof started leaking I was in a panic. Proline came to the rescue on a weekend, got it patched temporarily, and worked around my schedule for the full repair. True lifesavers.
Chris W.
Old Bridge, NJ
   

Persistent Leaks Ruining Your Home? We've Got You Covered.

Fast, Reliable Repairs and Replacements. Get Your Free Quote Today.

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Home › Commercial Roofing › Flat Roofing

Commercial Flat Roofing in Staten Island, NY

TPO, EPDM, PVC, built-up and modified bitumen systems for warehouses, offices, retail and multi-family buildings. ProLine Roofing installs, repairs and replaces flat roofs, and we are open 24/7 for leaks.

✓ Free inspection with a photo report

✓ TPO, EPDM, PVC, BUR and modified bitumen

✓ Work planned to limit disruption to your business

Call (347) 323-9128 Request flat roof estimate

Free Flat Roof Estimate

Tell us about your building. We call you to set up a visit.

Thank you! We received your request and will call you shortly to set up your free estimate.

Your information is never sold or shared. We use it only to contact you about your estimate.

Prefer to talk? Call (347) 323-9128

Free

Inspection and written estimate

24/7

Open for leaks, day and night

5 systems

TPO, EPDM, PVC, BUR, modified bitumen

Licensed

and insured, HIC #2120969-DCWP

What we do

Flat roofing services for commercial buildings

Flat roofs reward careful detail work. Every service below starts with a free inspection and a written estimate.

New installations

Installation of TPO, EPDM, PVC, built-up roofing and other flat roof systems on new and existing buildings.

Roof replacements

A planned move to a new flat roof system when repairs no longer make sense, with the scope in writing.

Leak repair

We trace leaks to the source: seams, flashing, penetrations, drains and punctures. We respond fast and stop the water first.

Ponding water and drainage

We look at why water stays after rain and what it takes to move it off the roof.

Parapets, curbs and flashing

Coping, wall flashing, skylight curbs and rooftop equipment are some of the most common leak points.

Maintenance programs

Scheduled inspections, cleaning and small repairs to extend the life of your flat roof.

Systems

Flat roof systems we install

Each system has strengths. We explain the trade-offs for your building before you decide.

TPO

A single-ply membrane with a reflective white finish. A popular choice for commercial flat roofs. Typical life is 10 to 20 years.

EPDM

A rubber membrane known for flexibility and a long track record. Typical life is 10 to 20 years.

PVC

A single-ply membrane with strong resistance to chemicals, fire and punctures.

Built-up roofing (BUR)

A traditional layered system with a long record of performance.

Modified bitumen

A multi-layer system that suits many low-slope roofs.

Not sure which fits?

We compare options for your roof, budget and use of the building in your free estimate.

What we look for

What we look for on a flat roof

Ponding water and a patched area on a commercial flat roof

Ponding water

Water that stays after rain stresses seams and adds weight to the deck.

Brick parapet wall with worn coping and flashing on a flat roof

Parapets and coping

Cracked coping, open mortar and failed wall flashing let water behind the roof edge.

New white TPO membrane on a Brooklyn flat roof

A finished TPO roof

A single-ply membrane with clean terminations and flashed penetrations.

Why ProLine

Why choose ProLine for flat roofing

Many systems, one team

We install and repair TPO, EPDM, PVC, BUR and modified bitumen, so you get advice that fits your building.

Focus on workmanship

Careful installation and attention to detail drive long-term performance.

Safety first

Safety protocols protect your property, your tenants and your employees.

Less disruption

We plan the work to limit inconvenience to your business operations.

Repair or replace?

Repair or replace your flat roof

Repair makes sense when…

✓ The leaks come from one or two spots

✓ The membrane and insulation are sound

✓ Flashing, seams or a drain failed on its own

✓ The roof has years of life left

Replacement makes sense when…

✓ Leaks keep returning in different places

✓ Insulation is wet or the deck is soft

✓ The membrane is brittle, cracked or past its life

✓ Repair bills add up to a large share of a new roof

Pricing

What affects flat roof pricing

Every building is different, so we price by the job. These are the factors that move the number.

Roof size and access

Square footage, height, and how crews and materials reach the roof.

System and thickness

TPO, EPDM, PVC, BUR and modified bitumen each carry different material and labor costs.

Insulation and deck condition

Wet insulation or a damaged deck adds scope, and we find it during the inspection.

Drainage and details

Drains, parapets, curbs and rooftop equipment change the amount of flashing work.

Your free estimate gives the exact number in writing. Want to see how roofs are priced first? Read our roofing costs guide.

How it works

From first call to written estimate

1

You send the form or call

Tell us about the building and what is going on. For a leak, call. We are open 24/7.

2

We schedule a visit

We confirm the details and plan access, roof hours and any tenant or board needs.

3

We inspect and photograph

We check the roof surface, seams, flashing, drains and penetrations. You see the same photos we do.

4

You get it in writing

An itemized estimate with honest advice. Compare it at your own pace.

Customer reviews

What our customers say

★★★★★

“After that crazy storm, I thought my roof was a goner. Proline came out the same day, patched the leak, and gave me an estimate for the damage. They were honest, the price was fair, and now my roof looks better than ever!”

Sarah T. · Staten Island, NY

★★★★★

“We would just like to thank Lonnie for quickly coming to our rescue. My sister's house had roof damage after the last big storm while she was away. I called Proline, they came quickly, gave me a quote that was very reasonable, and a few days later the job was done. Quality work, clean, polite and efficient you couldn't ask for more.”

Dr. Louis Vastola · Staten Island, NY

★★★★★

“I run a small business, and when my roof started leaking I was in a panic. Proline came to the rescue on a weekend, got it patched temporarily, and worked around my schedule for the full repair. True lifesavers.”

Chris W. · Old Bridge, NJ

FAQ

Flat roofing questions, answered

How long does a commercial flat roof last?

Typical life is 10 to 20 years for membrane systems such as TPO and EPDM. Drainage, maintenance and installation quality all affect it.

What is the best flat roof system for my building?

It depends on the building, budget and use of the roof. TPO and EPDM are common single-ply options, PVC resists chemicals and fire, and built-up and modified bitumen suit many low-slope roofs. We compare them in your estimate.

Why does my flat roof leak?

Common causes are failed seams, flashing, clogged drains, punctures and ponding water. The leak often shows up far from its source, so we trace it before we repair it.

Can you repair a flat roof instead of replacing it?

Often yes. If the leaks are local and the insulation and deck are sound, a repair is the better value. We tell you which fits and show you photos.

Do you work while my business stays open?

We plan the work to limit disruption and talk through access, noise and safety with you before we start.

Do you handle emergency flat roof leaks?

Yes. We are open 24/7, and we respond fast and stop the water first. Then we plan the permanent fix.

Do I need a permit for flat roof work in NYC?

A New York City Department of Buildings permit is often needed, and the rules change. We confirm what applies to your address before work starts.

Is the estimate free?

Yes. The inspection and written estimate cost nothing and carry no obligation.

Related services

More commercial roofing help

Commercial Roof Inspections

A documented check of your roof, with photos and a written report.

Learn more →

Commercial Roof Maintenance

Scheduled care that catches small problems before they leak.

Learn more →

Commercial Roof Replacement

A full replacement when repairs no longer make sense.

Learn more →

Ready for an honest number on your roof?

Send the form or call now. You get a free inspection, a photo report and a written estimate. Leaking right now? We are open 24/7.

Call (347) 323-9128

Request your free estimate

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Your information is never sold or shared.

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