Commercial Flat Roof Repair in Chino, CA

Chino Superior Roofing provides expert commercial flat roof repair, delivering dependable solutions that protect your business from leaks and weather damage. Our experienced team specializes in commercial roof leak repair, flat roof patching services, and roof waterproofing and sealing for lasting durability. We handle a wide range of materials and systems, including TPO roof repair, EPDM roof restoration, and built-up roof (BUR) repair, with a focus on quality workmanship and efficiency. As trusted industrial roof repair contractors, Chino Superior Roofing also provides commercial roof inspection services and ongoing commercial roofing maintenance to ensure your property remains secure and energy-efficient.

We know that roof issues can disrupt your operations, which is why our repair process emphasizes speed, precision, and communication. From identifying hidden leaks to reinforcing weakened sections, our team uses advanced repair methods to restore structural integrity and prevent future problems. Whether you’re dealing with storm damage or wear from years of exposure, our team delivers emergency flat roof repair and maintenance programs that keep your building safe and your business running smoothly.

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Our Commercial Flat Roof Repair Solutions

We focus on detailed inspections, effective repairs, and careful replacements to protect your flat roof. Our approach ensures long-lasting results while minimizing disruption to your business.

Flat Roof Inspections

We inspect every part of your flat roof thoroughly. This includes checking seams, flashings, drains, and the surface for cracks or blisters. Our commercial roof inspections find small problems before they grow into expensive repairs.


Using specialized tools, we measure moisture levels inside the roof layers. This helps us detect hidden leaks that are not visible from the surface. We provide a clear report with photos and recommended actions. Regular inspections extend your roof’s life and keep your building safe. We schedule inspections at times that suit your business operations.

Flat Roof Replacement

When repairs are not enough, we offer full roof replacement. Our replacements use durable membranes like TPO, EPDM, or modified bitumen. These materials protect against strong sun, heavy rain, and wind common in Chino. We remove old materials carefully and perform new, high-quality flat roof installation.


We handle all steps, from removing debris to installing insulation and waterproof layers. Our work follows local building codes to ensure safety and warranty compliance.

Emergency Leak Repairs

Leaks can disrupt business and cause damage quickly. We provide fast emergency leak repair services to stop water intrusion immediately.


Our technicians arrive with the proper tools and materials to patch leaks efficiently. We isolate the damaged area and seal cracks or holes to prevent further harm.


We also identify the root cause of the leak to provide advice on long-term solutions. Our goal is to reduce downtime and protect your property from water damage.

Roof Restoration Services

Instead of replacing your roof, restoration can be a cost-effective choice to improve its condition. We clean the roof thoroughly and fix damaged areas using compatible coatings and patches.


Restoration boosts waterproofing and reflects sunlight to lower cooling costs. It also delays the need for full replacement by reinforcing current materials.


We customize restoration plans based on your roof’s age and condition. This service can add years to your roof’s lifespan without major construction work.

Types of Materials We Service with Commercial Flat Roof Repair

Our services are available for several common types of flat roofing materials that widely used in commercial buildings. Each type has its own qualities and maintenance needs. We tailor our repair methods to meet these specific requirements.


TPO and PVC Roof Systems


TPO (Thermoplastic Olefin) and PVC (Polyvinyl Chloride) are popular for their durability and energy efficiency. Both are single-ply membrane roofs that reflect sunlight well, reducing cooling costs. We inspect seams closely because both rely on heat-welded seams that can fail over time. TPO is often less expensive, but PVC resists chemicals and punctures better.


Our team knows how to handle repairs on these membranes without damaging the material. We focus on fixing tears, seam issues, and punctures quickly to avoid water damage.



Modified Bitumen Roofs


Modified bitumen roofs use asphalt combined with rubber or plastic modifiers. This creates a tough, flexible membrane. It is usually installed in layers with a protective surface like gravel or a reflective coating. We check for wear spots, cracks, and blisters that let water in. Repairs involve patching or replacing damaged sections using heat or adhesives.


This type is good for roofs that need extra protection against foot traffic and weather. We match our repair techniques to the existing materials and roof layout for the best results.



EPDM Rubber Roofs


EPDM (Ethylene Propylene Diene Monomer) is a rubber membrane favored for its longevity and resistance to UV rays and extreme weather. It is one of the most common flat roofing types. We repair EPDM by replacing seam tape or applying patches made from the same rubber material. We make sure the roof stays sealed and flexible.


Because EPDM is rubber, it can be tricky to patch if the surface is dirty or damaged. We clean the affected areas thoroughly before repair to ensure good adhesion and a strong seal.

Why Choose Chino Superior Roofing for Commercial Flat Roof Repairs

For all of these repair options, we bring years of experience and deep local knowledge to every roofing job. Our materials and methods are chosen to make sure your roof lasts longer and withstands the Chino climate.

Experienced Commercial Roofing Team

Our team has worked on many commercial flat roofs, repairing and maintaining different types of roofing systems. We understand the challenges specific to flat roofs, like drainage issues and leak prevention. Each member is trained to spot potential problems early. This helps us save you money by fixing small issues before they become big repairs.


Our experience means we can handle any size project, from small repairs to extensive roof replacements. We work efficiently to minimize disruption to your business.

Quality Materials and Proven Techniques

We use only high-quality roofing materials that are tested for durability in commercial settings. This includes weather-resistant membranes, strong adhesives, and reliable sealants.


Our repair methods focus on fixing the root cause of problems, not just the surface damage. We combine industry best practices with modern tools for precise workmanship.


Before starting any work, we inspect the roof thoroughly to create a clear repair plan. After completion, we offer maintenance tips to keep your flat roof in top condition.

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Commercial Flat Roof Repair FAQs

  • How much does commercial flat roof repair cost?

    Commercial flat roof repair costs vary based on the extent of damage and type of repair needed. Minor repairs like patching small leaks or sealing seams typically range from $300 to $1,500, while more extensive repairs such as addressing ponding water issues or replacing damaged sections can cost $2,000 to $10,000 or more. The size of the damaged area, accessibility, and roofing material all affect pricing. 

  • What are the most common commercial flat roof problems?

    The most common issues include ponding water (standing water that doesn't drain within 48 hours), membrane blistering or bubbling, punctures or tears from foot traffic or debris, failed seams or flashing, and clogged drains or scuppers. UV damage, thermal expansion and contraction, and age-related deterioration also cause frequent problems. Regular inspections help catch these issues early before they escalate into costly damage or interior leaks.

  • How long do commercial flat roof repairs take?

    Most commercial flat roof repairs can be completed in 1 to 3 days, depending on the scope of work. Simple patch jobs or small leak repairs often take just a few hours to one day. More extensive repairs involving multiple areas, drainage system work, or membrane replacement may require 2 to 5 days. Emergency repairs are prioritized and can often be addressed within 24 hours to protect your business from further damage.

  • Can a flat roof be repaired, or does it need replacement?

    If damage is localized to less than 25% of the roof, your roof is under 15 years old, and the underlying structure is sound, repair is usually the best option. However, if your roof has widespread damage, multiple leak points, is nearing the end of its lifespan (20+ years), or has significant membrane deterioration, replacement may be more cost-effective long-term. Our experienced team will provide an honest assessment and recommend the solution that makes the most financial sense for your property.

  • How can I prevent commercial flat roof problems?

    Regular maintenance is key to preventing costly repairs. Schedule professional inspections twice yearly (spring and fall) and after major storms. Keep drains, gutters, and scuppers clear of debris to prevent ponding water. Trim overhanging tree branches to avoid damage from fallen limbs. Address small issues immediately before they become major problems. Consider a preventative maintenance plan with Chino Superior Roofing to extend your roof's lifespan and catch potential issues early, saving you money in the long run.