(909) 240-7101

Commercial Roofing Contractor in Southern California

Protect your business or investment property with southern California’s Commercial Roofing Contractor of choice. From the intial inspection to driving the last nail into the last shingle, West Meridian Roofing will make sure your roof is installed the right way.

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Replace Your Business or Investment Property’s Roof With West Meridian Roofing

PROTECTING YOUR INVESTMENT STARTS AT THE TOP.

When you’re managing a commercial property, your roof is more than a building feature — it’s a critical investment in your people, your products, and your operations. A strong, dependable roof keeps everything underneath it safe, dry, and running smoothly.

At West Meridian Roofing, we help business owners, property managers, and contractors across Southern California stay protected with professional-grade roofing built for performance and longevity. From retail storefronts to warehouses, office buildings to mixed-use facilities, we understand the unique demands of commercial roofing — and we know how to deliver results without disrupting your day-to-day.

Our Commercial Roofing Services

1. New Commercial Roof Installation
Planning a new build or expansion? We’ll help you choose the right roofing system based on your building’s structure, use, energy needs, and budget. Our in-house crews deliver high-quality installations using durable materials designed to withstand California heat, wind, and weather.

Standing seam metal, tile, shingle, TPO, or modified bitumen — we’ll make sure it’s built to last.

2. Commercial Roof Replacement
If your roof is aging, leaking, or showing signs of serious wear, a full replacement may be the safest and most cost-effective solution. We’ll inspect the roof, explain your options, and coordinate all permits, tear-off, and installation with minimal disruption to your operations.

Clear quotes. Timely service. Zero guesswork.

3. Commercial Roof Repairs & Preventative Maintenance
Small issues don’t stay small for long. Our team offers scheduled roof inspections, storm damage assessments, and responsive repairs to fix leaks, cracks, flashing failures, and more — before they lead to costly downtime or water damage.

Extend the life of your roof and avoid surprise repair bills.

4. Protective Coatings & Waterproofing
For flat and low-slope roofs, a high-performance coating can make all the difference. We apply commercial-grade waterproofing systems that reflect heat, seal weak points, and reduce wear from UV exposure and ponding water — helping your roof last longer with less maintenance.

Ideal for buildings facing direct sun, pooling water, or aging membranes.

5. Emergency Roofing Services
Roof leaks don’t wait for business hours — and neither do we. If your building experiences storm damage or a sudden roofing emergency, our team is ready to respond fast, secure the structure, and get your business back on track with a long-term fix.

Quick response. Temporary protection. Permanent solutions.

 

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Common Commercial Roofing Materials

Commercial properties come with their own set of challenges—heavy HVAC systems, foot traffic, sun exposure, and stricter code requirements. At West Meridian Roofing, we install a wide range of roofing materials built to handle it all while keeping your building secure, efficient, and up to code.

Here are some of the most common commercial roofing materials we work with:

Metal Roofing (Including Standing Seam)

Metal is quickly becoming the go-to option for commercial properties that want both style and strength.

Standing seam panels offer clean lines and unmatched durability.

Corrugated or ribbed profiles provide a classic industrial look with lower costs.
We often recommend metal roofing for commercial clients seeking long-lasting performance and low maintenance in high-sun and high-heat environments.

Asphalt Shingles (for Smaller Commercial Properties)

Some commercial buildings—especially smaller offices, churches, or mixed-use spaces—opt for asphalt shingles.

Affordable and versatile, shingles are available in a wide variety of styles and colors.

With proper installation and commercial-grade materials, shingle roofs can still offer dependable protection and aesthetic curb appeal.

Tile Roofing

While more commonly seen on residential buildings, tile roofing is a great option for certain commercial properties, especially in Southern California where Mediterranean and Spanish-style architecture is popular.

Clay and concrete tiles offer exceptional durability and resistance to fire, wind, and sun. They provide a distinctive, upscale appearance that enhances curb appeal for restaurants, boutiques, offices, and more.

With proper installation and framing support, tile roofs can last 50+ years with minimal maintenance.

We recommend tile roofing for commercial projects where aesthetics, longevity, and low maintenance are a top priority.

Request Your Free Commercial Roof Inspection & Quote

Whether you’re planning a full roof replacement or just want to check the condition of your existing system, we’re here to help. At West Meridian Roofing, we’ll schedule a time to visit your property, perform a detailed inspection, and walk you through your options — no pressure, no guesswork.

Before we leave, you’ll have a clear, written quote so you can move forward with confidence.

WHAT OUR CUSTOMERS ARE SAYING

“They did a great job on my roof! Jeremiah, Elisha and their crew were honest, hardworking, and reasonably priced. Highly recommended!”

~Dave Gorham

“Honest and hard working guys. They did a great job at my place and left it cleaner than it was. I can’t say enough good things about them!”

~Michael Dilello

“We just had our roof done and WOW! It looks amazing and I’m so thankful they were able to get it done so quickly. They cleaned up every day and handled everything with the city permits and the dumpster rental, etc! I highly recommend this company!”

~Krystle Manning

“They redid our old roof and did a very good job. Jeremiah and Elisha were very responsive and were willing to work with us, even with small requests. They cleaned up after themselves everyday and everything looked great. So far the roof seems flawless and we are very happy overall. I would definitely recommend them!”

~Christian Yang

“Jeremiah and David did excellent work restoring the front porch on our historic home and reroofing the garage and my studio. Always friendly, professional, and respectful. We intend to use them whenever we need construction work.”

~Frank Ramme

“Great company! We needed a new roof and I wanted solar panels as well but wasn’t sure how to go about it. Jeremiah knocked on my door and was very friendly and professional answering all the questions I had. He then said we could work with empower solar and combine and finance the roof and solar together. Both companies did an amazing job. Here I am 2 months later in a heat wave with a beautiful new roof and enough panels to cover our electric bill. I couldn’t be happier! Thank you Jeremiah”

~Bekah Heem

Common Misconceptions About Replacing Your Commerical Roof

Dispelling common misconceptions is crucial for commercial property owners who want to protect their investments. By understanding the nuances of different roofing systems, recognizing the importance of proactive maintenance, and hiring specialized professionals, you can avoid unexpected headaches and ensure your roof performs at its best for years to come.

“If it’s not leaking, the roof must be fine.”

Reality: Many commercial roof problems start subtly — with small punctures, failing seals, or ponding water. By the time a leak appears inside, underlying damage may already be widespread. Routine inspections help catch issues early and prevent expensive repairs.

“All flat roofs are the same.”
Reality: Flat roofs can be made from a wide range of materials — from TPO to PVC to EPDM — each with its own strengths, weaknesses, and ideal applications. Choosing the wrong system can lead to premature failure or higher maintenance costs.
“A roof coating can fix anything.”
Reality: Coatings are great for extending a roof’s life and improving energy efficiency, but they’re not a cure-all. Severely deteriorated or damaged roofs may need structural repair or full replacement before a coating can be effective.
“Replacing a commercial roof means shutting down business.”
Reality: In most cases, we can complete a commercial roof replacement without disrupting daily operations. We coordinate work zones, schedule around your hours, and communicate clearly to minimize interference.
“You can’t put a new roof over an existing one.”
Reality: In some cases, you can install a new roofing system over an existing one — as long as it meets local building codes and structural requirements. This can save money and reduce downtime, but it’s not always the right choice. We’ll help you evaluate your options.
“All roofing contractors are qualified for commercial work.”
Reality: Commercial roofing requires different skills, materials, and safety protocols than residential work. Choosing a contractor with commercial experience — like West Meridian Roofing — ensures your project meets building codes, performance standards, and warranty guidelines.
“Metal roofing is too expensive for commercial buildings.”
Reality: While the upfront cost may be higher than some systems, metal roofs offer exceptional longevity, low maintenance, and energy efficiency — making them a smart investment over time. For many business owners, the long-term ROI makes metal worth it.
“A new roof means I have to replace everything down to the structure.”
Reality: Not always. We inspect each layer — from the membrane to the deck — and only replace what’s necessary. If your structure is still sound, we’ll preserve what’s working and focus on what’s not.
“Once it’s installed, I don’t need to worry about it.”
Reality: Even the best commercial roofs need occasional maintenance. Scheduling annual inspections helps catch small issues early, extend your roof’s lifespan, and maintain warranty coverage.
“All warranties are the same.”
Reality: Commercial roof warranties vary widely. Some cover only materials, while others include installation and labor. We’ll help you understand exactly what’s covered and ensure you get the best protection possible.

Some Examples of Our Work

See More in Our Portfolio

Why Choose West Meridian Roofing?

Licensed & Insured in California

We follow all permitting, inspection, and building code requirements — no shortcuts, no surprises.

Local In-House Crews You Can Count On

Our skilled roofing crews work for us — not a random subcontractor — so you get consistent, professional results.

Clear Quotes & Easy Communication

We’ll meet you in person, inspect your roof, give you a quote on the spot, and follow up by text or phone — whatever works best for you.

Frequently Asked Questions

Replacing your roof is a significant undertaking, but understanding these common FAQs can help you feel more informed and confident as you navigate the process. Always consult with a trusted, certified roofing contractor (like us!), and don’t hesitate to ask additional questions that relate specifically to your home’s condition and budget.

How do I know if my commercial roof needs to be replaced or just repaired?
We’ll inspect the condition of the roofing system, check for issues like widespread membrane damage, water intrusion, or deck deterioration, and give you honest feedback. If the roof has localized damage or is relatively young, a repair may be enough. If it’s near the end of its lifespan or causing repeated issues, replacement might be the smarter investment.
Can you replace our roof without shutting down operations?
In most cases, yes. We’ll coordinate carefully with your schedule to minimize disruption, maintain safe access for employees and customers, and complete the job efficiently so your business keeps moving.
What types of commercial roofing systems do you install?
We work with single-ply systems (like TPO, PVC, and EPDM), standing seam metal, asphalt shingles for smaller properties, and roof coatings for flat or low-slope roofs. We’ll help you choose the best system for your building type, budget, and long-term goals.
How long does a commercial roof replacement take?
It depends on the size and complexity of the project, but most replacements take between a few days to a couple of weeks. We’ll give you a clear project timeline during the quoting process.
Is a roof coating right for my building?
If your existing roof is in decent condition but starting to show wear, a reflective coating can extend its life, improve energy efficiency, and reduce maintenance needs. We’ll assess your roof to determine if coating is a viable option or if more extensive repairs are needed.
Do you offer ongoing maintenance for commercial roofs?
Yes. We provide scheduled maintenance plans and annual inspections to help prevent surprise leaks, extend the life of your roof, and maintain any applicable warranties.
What areas do you serve for commercial projects?
We serve a wide range of cities throughout Los Angeles, Riverside, Orange, and San Bernardino counties — including Montclair, Upland, Rancho Cucamonga, Pomona, Ontario, and beyond. Not sure if you’re in our zone? Just ask!
Can you provide documentation for insurance or permitting?
Absolutely. We’re fully licensed and insured, and we handle all necessary permitting. If you’re working with an insurance provider, we’ll document damage, provide estimates, and assist with claim-related paperwork.
What kind of warranty comes with a new commercial roof?
That depends on the material and manufacturer, but we always use high-quality systems backed by solid warranties — typically covering materials for 10–30 years. We also stand behind our workmanship with a service guarantee.
How soon can you get started?
We move quickly but responsibly. Once you approve the quote, we’ll schedule your project based on current lead times and permitting. For emergencies or critical repairs, we offer expedited service whenever possible.

Are You Looking For The Right Roofing Contractor?

Get expert roofing service without the stress, confusion, or runaround. Simply fill out the form below, and one of our experts will reach out to you quickly to talk!

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If you are looking for a professional, responsive, and honest roofing contractor in Southern California, call West Meridian Roofing Today.

C-39 Roofing Contractor License #1118631

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West Meridian Roofing Inc

600 N Mountain Ave BLDG C, Upland, CA 91786
Phone: (909)240-7101
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BUSINESS HOURS:
Mon - Fri: 7:00 a.m. - 5:30 p.m.
Sat: 8:30 a.m. - 12:00 p.m.