Rosemead Superior Roofing: Commercial Roof Repair & Roof Replacement
Rosemead Superior Roofing is a roofing contractor trusted for commercial roofing in Rosemead, CA, delivering dependable roof repair and roof replacement solutions that protect offices, retail buildings, warehouses, and multi-tenant properties. From flat roof installation and leak detection to roof inspections, storm damage repair, and preventive maintenance, we focus on clean workmanship, clear communication, and systems built for long service life. Our crew understands drainage, insulation performance, and high-traffic roof details—so your property stays protected and operating smoothly year-round.
We specialize in modern membrane roofing and long-lasting materials, including TPO (heat-welded seams ), EPDM, modified bitumen, and metal roofing, plus roof coating options for added UV resistance. We install proven systems and components from manufacturers like GAF, Carlisle SynTec, Johns Manville, and Mule-Hide, using smart techniques such as tapered insulation, proper flashing at penetrations, and detailed edge terminations to help prevent recurring leaks. While commercial projects are our core focus, we also bring the same standards to residential roofing needs when homeowners want commercial-grade reliability.
Rosemead Roofing Estimator
Tailored for LA County Building Codes & Title 24 Standards.
Note: This is an estimate and the actual investment may vary based on your specifications.
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References of Big Commercial Roofing Projects We've Done
Rosemead Library
Full Roof Overlay
$118.5k Project
Target
Full Roof Replacement
$337k Project
Chipotle
Full Roof Overlay
$29k Project
Ross Dress for Less
Full Roof Overlay
$87.3k Project
The Boiling Crab
Full Roof Overlay
$36.5k Project
Muscatel Middle School
Full Roof Replacement
$271k Project
Rosemead High School
Full Roof Replacement
$460k Project
Don Bosco Technical Institute
Full Roof Replacement
$119k Project
Why We Are the Leading Commercial Roofer in Rosemead, CA & Surrounding Areas
- Over 28 years of experience as a licensed C-39 commercial roofing contractor
- Completed high-value projects including hotels, industrial buildings, historic structures, and multi-story apartments exceeding $3.7 million
- Certified by top manufacturers including GAF, Carlisle SynTec, Firestone, Johns Manville, and CertainTeed
- Expert in installing and maintaining TPO, PVC, EPDM, Modified Bitumen, BUR, and metal roofing systems in compliance with manufacturer standards
- Skilled in advanced roof inspections, infrared moisture scanning, and leak detection to prevent costly repairs
- Specialized in commercial roof retrofits, upgrades, protective coatings, and energy-efficient installations
- Experienced in restoring incomplete or improperly installed roofs left by other contractors
- Financially strong company capable of keeping projects on schedule and avoiding construction delays
- Certified in energy-efficient roofing solutions, reflective coatings, and Title 24 compliance for sustainable performance
- Offering unmatched warranties, including 50-year coverage on shingle roofs and 30-year protection for flat commercial roofs
- No-dollar-limit warranty ensuring full roof replacement if a failure occurs
- Trusted for innovative roofing solutions tailored to each commercial client’s needs, including preventative maintenance programs to extend roof life
200+
Projects Completed
14 MILLION
Square Feet Maintained
1,000+
Customers Served
15
Awards Won
Our Rosemead Superior Commercial Roofing Services
Commercial Flat Roof Installation
Commercial flat roof installation is ideal for businesses with large, flat surfaces. We install high-performance materials like TPO, EPDM, and PVC to ensure durability, energy efficiency, and compliance with commercial building standards.
Commercial Flat Roof Repair
Our commercial flat roof repair service addresses common issues such as leaks, ponding water, or membrane tears. We use industry-standard materials and techniques to ensure repairs are durable and minimize disruptions to business operations.
Commercial Roof Maintenance
Regular commercial roof maintenance includes inspections, cleaning, and minor repairs to keep the roof in optimal condition. This service helps prevent costly repairs by addressing issues before they become serious, extending the lifespan of your roof.
Metal Roofing Systems
We design and install metal roofing using galvanized steel or aluminum panels coated with Kynar 500® for superior corrosion resistance. Metal roofs last 40 to 50 years, offer Class A fire ratings, and withstand winds up to 140 mph. Reflective finishes reduce energy costs by up to 35%, combining performance with modern aesthetics.
TPO Thermoplastic Olefin Roofing
We install TPO roofing with heat-welded seams to ensure 100% waterproof integrity and high energy efficiency. Reflecting up to 85% of UV rays, TPO lowers cooling costs by 30% or more. Lifespan ranges from 20 to 30 years, with Class A fire-rated protection, making it a sustainable and cost-effective roofing solution.
Roof Coatings and Restoration
We restore existing roofs with silicone, acrylic, and elastomeric coatings that extend roof life up to 20 years. Seamless application seals cracks, stops leaks, and increases reflectivity by 90%, improving energy efficiency and reducing maintenance costs. This solution revitalizes roofs without the expense of full replacement.
EPDM Roofing
We install EPDM single-ply membranes with fully adhered and mechanically fastened methods for flexibility, strength, and longevity. EPDM roofs last up to 35 years, prevent 99% of leaks, and withstand extreme weather. Its UV resistance and low maintenance requirements make it a reliable long-term investment.
Modified Bitumen Roofing
We install modified bitumen using torch-applied or cold-adhesive techniques for maximum adhesion and durability. These roofs resist punctures, provide Class A fire ratings, and last 20 to 25 years. Modified bitumen delivers reliable weatherproofing and excellent thermal performance for high-traffic commercial roofs.
Built-Up Roofing (BUR)
We construct BUR systems using multiple layers of asphalt and reinforced fabrics for superior waterproofing and insulation. BUR roofs last 25 to 30 years, resist foot traffic and UV exposure, and maintain over 95% client satisfaction. This method remains a trusted choice for flat and low-slope commercial properties.
Flat Roof Repair and Maintenance
We provide comprehensive flat roof repair and maintenance that extends roof life by up to 40%. Using infrared moisture detection, precision sealing, and premium coatings, we prevent leaks and costly damage. Our proactive maintenance programs ensure reliable, long-term roof performance.
Green and Cool Roofing Systems
We design and install green and cool roofing that reflects up to 90% of sunlight, lowers rooftop temperatures by 50°F, and lasts 30+ years. These systems reduce energy use, improve air quality, and support sustainability goals while delivering long-term savings.
Roof Inspections and Waterproofing
We perform detailed roof inspections and apply premium waterproofing solutions to achieve 100% leak prevention. Our services protect against mold, rot, and structural damage while ensuring compliance with safety standards. Regular inspections maximize roof performance and longevity.
What materials do we use for commercial roofing in
Rosemead, CA?
Thermoplastic Olefin (TPO) Membrane
We install TPO membranes for their superior energy efficiency and heat-reflective properties, which can reduce cooling costs by up to 30% annually. TPO offers flexibility and a Class A fire rating. We secure it with heat-welded seams to ensure watertight durability and consistent performance.
EPDM Rubber Roofing
We choose EPDM rubber roofing for its exceptional resistance to UV rays, ozone, and extreme temperature fluctuations. Its lifespan exceeds 35 years, providing unmatched longevity for commercial properties. We apply it using fully adhered or mechanically fastened methods to achieve a seamless, leak-free surface.
Modified Bitumen Sheets
We rely on modified bitumen for its combination of asphalt durability and polymer flexibility, delivering superior puncture and tear resistance. Its reliability makes it ideal for high-traffic roof areas. We install it using torch-down or cold-adhesive techniques to achieve strong adhesion and full weatherproofing.
Galvanized Steel and Aluminum Panels
We fabricate and install galvanized steel and aluminum panels coated with Kynar 500® for corrosion and fade resistance. These panels withstand winds up to 140 mph and last 40 to 50 years. Each panel is precision-fitted to maximize energy efficiency and long-term performance.
Asphalt and Gravel Layers (BUR Materials)
We use asphalt and gravel in built-up roofing systems to provide exceptional waterproofing and insulation. This trusted method delivers roofs that last 25 to 30 years with minimal maintenance. We reinforce layers with fabrics to enhance strength and durability.
Silicone and Elastomeric Coatings
We apply silicone and elastomeric coatings to restore and protect roofs without complete replacement. These coatings reflect up to 90% of UV rays, reduce rooftop temperatures by 50 degrees, and extend roof life up to 20 years. Advanced spray or roller applications create a seamless, energy-efficient barrier.
Commercial Roof Issues We Solve at
Rosemead Superior Roofing
Roof Leaks and Water Ponding
We eliminate roof leaks and prevent water ponding, issues that impact the majority of commercial roofs. Using infrared moisture detection and precision sealing, we locate leaks before they cause structural damage. We also optimize drainage systems and correct roof slopes to prevent future water accumulation, protecting your building and extending roof longevity.
Membrane Damage and Punctures
We repair membrane punctures and tears caused by foot traffic, equipment, or extreme weather. Small breaches often lead to major failures if left unaddressed. We apply high-quality patching materials and heat-welding techniques to restore complete waterproof integrity and reinforce roof durability.
Poor Installation and Aging MaterialsWe correct issues caused by improper installation or aging materials that compromise roof performance. Many commercial service calls result from substandard work or outdated roofing systems. Our team reinforces existing roofs with premium materials and precise installation methods to ensure long-term reliability and compliance with building codes.
Drainage and Gutter System Failures
We resolve drainage and gutter failures that lead to water buildup and interior damage. Inefficient or clogged systems reduce roof lifespan and increase repair costs. We design, install, and maintain commercial-grade drainage solutions that efficiently manage water flow, safeguarding your roof and property from future issues.
How much does it cost to replace a commercial roof in Rosemead, CA?
It typically costs from $6 to $18 to replace a commercial roof in Rosemead, CA, depending on the roofing system, building size, and overall complexity of the project. Common flat roofing options such as TPO, PVC, and EPDM usually fall between $7 and $15 per square foot, providing reliable durability, energy efficiency, and long-term performance. Premium systems like modified bitumen, built-up roofing (BUR), and metal roofs can cost $16 to $22 per square foot, offering multilayer protection and enhanced resistance for commercial properties in Rosemead’s climate.
In an average commercial roofing project, materials account for about 45–50% of the total cost, while labor and installation represent roughly 30–40%. The actual cost can be influenced by several factors, like the roof's accessibility, the tear-off process, and the current status of the roofing structure.
Typical Cost Range Per Square Foot:
Roofing Type | Typical Cost Range (per sq ft) |
|---|---|
Built-Up Roofing (BUR) | $10.00 – $22.00 |
Single-Ply PVC | $8.00 – $15.00 |
Single-Ply TPO | $7.00 – $15.00 |
EPDM (rubber membrane) | $6.00 – $14.00 |
Metal Roofing (flat/low slope or sloped) | $12.00 – $18.00 |
Modified Bitumen | $9.50- $16.00 |
Typical Cost Range Per Square Foot:
Cost Component | Approximate % of Total Cost | Inclusions |
|---|---|---|
Labor & Installation | ~30-40% | Includes membrane, insulation, flashings, fasteners, waterproofing layers. |
Permits, Inspections & Contingency | ~5-10% | Skilled labor, seam welding, substrate preparation, safety measures, cleanup. |
Materials | ~40-50% | Removal of old roof, disposal fees, repair/replacement of damaged deck or insulation. |
Tear-off / Disposal & Substrate Repair | ~10-20% | Local code compliance, building permits, unforeseen conditions. |
Our Residential Roofing Services
Roof Leak Detection
Our roof leak detection service uses advanced methods such as thermal imaging and moisture mapping to accurately identify the source of leaks. Early detection prevents water damage and structural issues, saving you money on extensive repairs.
Residential Roof Replacement
Residential roof replacement involves removing the old roofing materials and installing new ones to ensure long-term protection. We offer various materials, including asphalt shingles, metal, and tile, all designed to meet your home’s specific needs and local building codes.
Residential Roof Installation
We provide professional roof installation services for new homes or home extensions. Our installation process includes proper ventilation, insulation, and waterproofing to ensure your roof is durable, energy-efficient, and compliant with local regulations.
Roof Storm Damage Repair
After a storm, our roof storm damage repair service addresses issues like missing shingles, damaged flashing, or leaks. We perform an in-depth inspection to assess the extent of the damage and provide immediate repairs to restore the roof’s integrity.
Asphalt Shingle Roofing
We install premium, impact-resistant asphalt shingles that combine style with long-lasting performance. These roofs provide a Class A fire rating and a lifespan of 25 to 30 years, offering reliable protection for homes across Rosemead. Our precision nailing and proper ventilation techniques deliver durable, leak-resistant roofs that maintain their integrity over time.
Tile Roofing (Clay and Concrete)
Our tile roofing solutions enhance both curb appeal and structural performance. Clay and concrete tiles offer exceptional durability, fire resistance, and pest protection, lasting over 50 years. Using reinforced underlayment and secure fastening methods, we ensure each roof withstands Rosemead’s climate while providing superior insulation and elegance.
Metal Roofing Systems
We provide metal roofing systems crafted from galvanized steel or aluminum with Kynar 500® coatings for fade and corrosion resistance. These roofs endure up to 50 years, resist winds up to 140 mph, and reflect heat to reduce cooling costs by 35 percent. Concealed fasteners and custom fabrication create a sleek, maintenance-free roof that combines strength with modern design.
Roof Inspection and Preventive Maintenance
We deliver thorough roof inspections and preventive maintenance programs designed to extend roof lifespan by up to 40 percent. Using drone technology and detailed visual assessments, we identify wear, storm damage, or ventilation issues before they escalate. Our proactive maintenance keeps roofs in optimal condition year-round, protecting your investment and saving on future repairs.
Protect Your Property with Rosemead Superior Roofing. Contact Us Today.
Ensure your roof provides lasting strength and reliability with Rosemead Superior Roofing. Whether you need a full installation, precise repair, or complete roof replacement, our expert team delivers superior craftsmanship and quality materials from start to finish.
Hear it from Our Happy Clients!
“Our warehouse roof had major leaks after last winter’s storms. Rosemead Superior Roofing came out quickly, inspected everything, and replaced our TPO roofing within a week. It’s been six months and not a single leak — they were professional and efficient from start to finish.”
Maria Lopez – Rosemead, CA
6 months ago
“We hired Rosemead Superior Roofing for a full EPDM roof installation on our commercial building. The crew was on time every day, kept the site clean, and finished ahead of schedule. The new roof has already lowered our cooling costs noticeably.”
Linda Martinez – Alhambra, CA
6 months ago
“Our office building needed a roof coating and restoration, and these guys did a fantastic job. They explained every step, used quality materials, and the finished roof looks brand new. I’d definitely recommend them to any property owner in the area.”
David Chen – San Gabriel, CA
6 months ago
“I manage several commercial properties, and is now my go-to contractor. They’re honest, responsive, and their maintenance program has kept our roofs in great shape. It’s rare to find a roofing company this reliable.”
Sarah Johnson – Montebello, CA
6 months ago
Commercial Roofing Service FAQ’s
Most commercial roofing projects take 1 to 3 weeks, depending on the size of the building, material type, and weather conditions.
With proper installation and maintenance, commercial roofs can last 20 to 50 years, depending on the material — metal and TPO typically last the longest.
We recommend twice a year — once before the rainy season and once afterward — to catch small issues before they become major repairs.
Look for water leaks, ponding water, cracks, blistering, or rising energy bills. These are early signs that your roof may need professional attention.
Yes. We provide comprehensive material and workmanship warranties, typically ranging from 10 to 25 years, depending on the roofing system installed.