Commercial Roofing Services

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Commercial Roofing Systems


Gorilla Roofing offers expert roof resurfacing services for commercial clients. Our team of professionals will apply a new layer of material to your existing roof, restoring its appearance and performance. With our resurfacing services, you can extend the life of your roof, save money, and reduce your environmental impact.


If your commercial roof is beyond repair, Gorilla Roofing is here to help. We offer a range of high-quality roofing materials to fit your needs and budget, and our team will work with you to ensure a seamless installation. We also offer flexible financing options and a warranty on all our work, so you can have peace of mind knowing your new roof is protected. And That’s No Monkey Business.

New Construction

At Gorilla Roofing, we understand that a well-designed roof is critical for new construction projects. Our team has the expertise to help you choose the right materials and design a roof that will last for years to come. We work closely with your builder or architect to ensure the roof is integrated seamlessly into your project. With our new construction services, you can rest assured that your roof will be built to the highest standards of quality and durability. That’s another way that Gorilla Roofing goes APE on the competition!


If your commercial roof needs repairs, Gorilla Roofing is ready to go bananas on those leaks. Our team of experienced professionals will inspect your roof, identify the problem, and provide a solution that fits your budget and timeline. We offer emergency repair services to minimize downtime for your business, and we use high-quality materials to ensure your repairs are long-lasting. Plus, with our maintenance program, we can help prevent future issues and extend the life of your roof.


Commercial Roofing Services

Depending on your roof and the current condition, we have several options available for you.


TPO stands for Thermoplastic Polyolefin. This is a white PVC-like, single-ply membrane that is popular with commercial buildings and is relatively cost effective.


Ethylene Propylene Diene Terpolymer is essentially a rubber-like roofing material. This too is a single-ply membrane and relatively cost effective. Also common on commercial building roof types.

Modified Bitumen

This is a rubber or plastic modified asphalt rolled roof. This can be installed with hot tar or cold tar. It can also be applied as a peel and stick and heated with a torch for adherence.


We also have a variety of restorative options that include silicone, acrylic and elastomeric. These are meant to extend the service life of a commercial roof that isn’t in need or replacement.

 a 5 star Customer RATED st. Louis Roofer

It's no secret that customers in today's market home and businesses deserve more. As a community member we take our promise or perfection seriously. The results are self evident, but since we don't like to brag we will let our satisfied customers do the talking.

Jeff Williams
Jeff Williams
I was having problems with my roof leaking into my living room. It was starting to do some substantial damage to the drop ceiling panels every time it rained. I called a local roofer to try to fix the damage. They came out and patched the area where it was supposedly leaking. Two weeks later, I had to call them out again because the roof still leaked. There had recently been some hail damage on roofs in my area, so I finally decided to get my insurance company involved. They sent someone out to inspect for hail damage. He was on my roof for a total of around 10 minutes. He said there was no damage ... claim denied. I was told about Gorilla Roofing from a friend's family member. They typically service the O'Fallon, St. Charles, MO area ... I am in the Belleville, IL side. I called Tyler and spoke to him about my issue. He drove over to do an inspection. He spent over and hour taking pictures and doing a full inspection on my roof AND gutters, down spouts, windowsills, etc. He circled all damage with orange chalk. And YES there was hail damage. Tyler then went to bat for me and contacted my insurance company and arranged a meeting for another inspection, with him present. They came to the conclusion that there WAS hail damage and honored the claim. We then set an appointment to have my shingles replaced. The crew showed up, along with Ben, their boss. Everything was finished within a day, and they cleaned up after themselves very well. Ben explained to me exactly where he thought the leaking was coming from ... and he was right ... it was not where the previous roofing company patched. We've had lots of rain since the installation, with no leaks. Bottom line, Gorilla Roofing, especially Tyler and Ben, have been very friendly and courteous. I've never had a company step up to the plate for me like they did. This company is HIGHLY RECOMMENDED!
Bob McRath
Bob McRath
Taylor was very helpful walking me through the entire process. The crew was very efficient and courteous. Over all my roof looks great and I will be referring Gorilla to all my friends and family
Peyton Fiordelisi
Peyton Fiordelisi
I recently had the pleasure of meeting Hannah from Gorilla while walking around in Central West End. After a recent incident where a tree fell through my sister's roof, I've been eager to help her find a good roofing company . I approached Hannah after seeing her Gorilla Roofing hat and I'm so glad I did! Her genuine care and willingness to go the extra mile left an impression and I'm excited to tell my sister about her/Gorilla Roofing!
Just Me
Just Me
This is THE BEST roofing company that I have ever worked with and that says a lot because I am an insurance adjuster and work with roofing companies often. Their customer service was A+. Their work exceeded my expectations. I will refer everyone I know to Tyler at Gorilla Roofing. We love our new roof and gutters. Do NOT hesitate to use them. Thank you! Gina
Clean, quick, worth every penny. I have never had to replace a roof before. Anthony came out talked to my family and I about our options, no pressure, just information. I checked their reputation around town and was shocked that no one had a negative thing to say. So we hired gorilla roofing. They handled everything it was as simple as picking out a color... They did the rest, they handled the insurance, they did the work, they were timely professional and clean.
Nick L
Nick L
Hannah and Gorilla Roofing took care of us. Very happy with our brand new roof. A stressful experience with a storm chaser turned into peace of mind with Gorilla Roofing.
Erin Turner
Erin Turner
I called Gorilla Roofing to do an inspection and estimate for storm damage to my roof. The woman I talked to on the phone was extremely helpful. She was patient and answered all of my questions. Taylor, who came to my home to inspect the roof, was courteous, friendly, professional, and arrived exactly on time. He spent a lot of time explaining the process, and how insurance claims work. He pointed out all of the issues with my roof and explained everything that would need to be done to fix it. Overall it was a very pleasant experience. I would highly recommend Gorilla Roofing to anyone needing roof repair.
Pamela Goedeke
Pamela Goedeke
very professional, did a gorgeous job . ion my roof . cleaned up their mess unlike a lot of companies i’ve seen leave nails and trash all over the place. i would recommend this company to anyone that needs a roof.

Common Commercial Roofing FAQs

What is the lifespan of a commercial roof?

The lifespan of a commercial roof can vary depending on several factors, including the type of roofing material, installation quality, maintenance practices, climate conditions, and other external factors. Here is the approximate life spans for some common types of commercial roofing materials:

  • Built-Up Roofing (BUR): With proper maintenance, a BUR roof can last around 15 to 30 years.

  • Modified Bitumen: Modified bitumen roofs typically have a lifespan of 20 to 30 years.

  • Thermoplastic Olefin (TPO): TPO roofs can last between 20 and 30 years.

  • Ethylene Propylene Diene Monomer (EPDM): EPDM roofs usually have a lifespan of 20 to 30 years.

  • Metal Roofing: Metal roofs are known for their durability and can last 40 to 70 years or even longer with regular maintenance.

  • Asphalt Shingles: Although more common in residential buildings, asphalt shingle roofs can be found on some commercial structures. Their lifespan typically ranges from 15 to 30 years.

How do I know if my business needs a new roof?

Determining whether your business needs a new roof involves considering several details. These are the most common signs that indicate it may be time to replace your commercial roof:

  • Age of the Roof: Most commercial roofs have an estimated lifespan, as mentioned previously. If your roof is approaching or has exceeded its expected lifespan, it’s a good indication that you may need a new roof.

  • Visible Damage: Inspect your roof for any visible signs of damage. Look for cracks, splits, blistering, curling or buckling shingles, missing or damaged tiles or excessive wear and tear.

  • Water Leakage: If you notice water stains, leaks, or moisture inside your building, it’s a strong indicator that your roof is compromised. Persistent leaks that cannot be repaired effectively may necessitate a new roof.

Sagging or Bowed Roof: A sagging or bowed roof is a serious concern and could indicate structural issues. If you notice any significant deformations or irregularities in the shape of your roof, it’s essential to have it inspected by a commercial roofing professional, as it may require replacement.

Excessive Energy Costs: If your energy bills have been consistently high, it could be due to poor insulation or inadequate ventilation in your roof. Upgrading to a new, energy-efficient roof can help reduce energy costs over time.

Roofing Material Deterioration: Different roofing materials exhibit various signs of deterioration. Shingles may become brittle or start losing granules, metal roofs may develop rust or corrosion, and flat roofs may develop extensive cracks or tears. If you observe significant deterioration in your roofing material, it may be time for a replacement.

How much will my new roof cost?

On average, the cost of a commercial roof installation can range from $5 to $15 per square foot. However, this is a rough estimate, and prices can go beyond this range based on the factors mentioned earlier. Complex roofs with unique architectural features or multiple levels can be more expensive to install. 

Here is a breakdown of different commercial roof costs: 

  • Built-Up Roofing (BUR): $3 to $7 per square foot

  • Modified Bitumen: $4 to $8 per square foot

  • Thermoplastic Olefin (TPO): $5 to $8 per square foot

  • Ethylene Propylene Diene Monomer (EPDM): $4 to $8 per square foot

  • Metal Roofing: $7 to $12 per square foot

  • PVC: $6 to $10 per square foot

  • Spray Polyurethane Foam (SPF): $5 to $10 per square foot

How long does it take to install a new commercial roof?

The time it takes to install a new commercial roof can vary. Some things to consider are the size and complexity of the roof, the type of roofing material being installed, weather conditions, and the efficiency of the roofing crew. Here are some general guidelines for the duration of a commercial roof installation:

  • Small to Medium-Sized Roof: For a relatively small or medium-sized commercial roof with a simple design, the installation process may take anywhere from a few days to a couple of weeks. This timeframe includes the removal of the old roof (if necessary), surface preparation, installation of the new roofing material, and finishing touches.

  • Large or Complex Roof: Larger commercial roofs or those with complex designs, multiple levels, or unique architectural features may require more time for installation. It could take several weeks or even months to complete the installation, depending on the specific project requirements.

  • Weather Delays: Weather conditions play a crucial role in roof installation. Inclement weather such as rain, snow, or high winds can cause delays and extend the installation timeline. Roofing work may need to be halted during adverse weather conditions to ensure safety and maintain the quality of the installation.

How do I know which roof is right for my business?

Choosing the right roof for your business depends on various factors, including your specific needs, budget, location, and building requirements. Here are some common types of commercial roofing materials along with their characteristics to help you make an informed decision:

  1. Built-Up Roofing (BUR): BUR roofs consist of multiple layers of bitumen and reinforcing materials. They provide excellent waterproofing and durability, making them suitable for low-slope or flat roofs. BUR roofs are cost-effective and can withstand heavy foot traffic.
  2. Modified Bitumen: Modified bitumen roofs are a variation of BUR roofs but come in pre-fabricated rolls or sheets. They offer enhanced flexibility and resistance to extreme temperatures. Modified bitumen roofs are suitable for low-slope roofs and are known for their durability.
  3. Thermoplastic Olefin (TPO): TPO roofs are single-ply membranes that provide energy efficiency, UV resistance, and durability. They are lightweight, cost-effective, and reflect sunlight, reducing cooling costs. TPO roofs are commonly used in commercial buildings.
  4. Ethylene Propylene Diene Monomer (EPDM): EPDM roofs are synthetic rubber membranes known for their durability and resistance to UV radiation. They are suitable for flat or low-slope roofs and offer excellent weather resistance and flexibility.
  5. Metal Roofing: Metal roofs, available in various materials such as steel, aluminum, or copper, are durable, long-lasting, and low maintenance. They offer excellent protection against the elements, are energy-efficient, and can be aesthetically pleasing. Metal roofs are versatile and can complement different architectural styles.
  6. PVC (Polyvinyl Chloride): PVC roofs are single-ply membranes that provide excellent resistance to chemicals, fire, and UV radiation. They offer strong durability, flexibility, and energy efficiency. PVC roofs are commonly used in restaurants, manufacturing facilities, and chemical plants.

It’s essential to consult with a professional roofing contractor or a commercial roofing specialist who can assess your specific needs, evaluate your building’s characteristics, and provide recommendations based on factors such as climate, budget, durability requirements, and energy efficiency goals.