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Ontario's Leading Roofing, Waterproofing, and Storm Repair Experts
We are a team of second-generation roofers with decades of experience in the industry.
Roofing and Waterproofing in Ontario, CA
Finding a skilled and trusted roofer is always a challenge for homeowners. However, our team at Green Ladder Roofing Company strives to provide the high-grade services and products that homeowners and businesses need in the Pasadena area. We have over 20 years of experience on our team and are dedicated to providing top-quality results. We’re accredited by the Better Business Bureau and are GAF Master Elite Contractors, proving the quality of our work. Our services in Ontario include:
- Roofing
- Commercial Roofing
- Waterproofing
- Storm Damage Restorations
Expert Residential Roofing Company in Ontario, CA
If there’s any part of your home that you should focus on when it comes to the exterior, it’s the roofing. Rest assured, our team provides quality new roofing, roof repair services, and roof replacement services. We offer some of the highest-grade products from brands like GAF, giving you peace of mind that our high-end roofing services will be well worth it.
Trusted Commercial Roofers
Our roof replacement company also focuses on commercial buildings. No matter what roofing material your building has or what type of service it needs, you can count on our team to treat it with the best. Our expert commercial roofing contractors are very knowledgeable about the unique requirements of commercial buildings and will make sure that you get quality service and products.
Thorough Ontario, CA Waterproofing Contractors
If you have a rooftop deck, patio, or another outcropping, waterproofing is essential. Our Ontario waterproofing company uses top-quality products to ensure lasting performance. With our help, you can trust that your structure will be tightly sealed.
Complete Roof Restoration Services
Our talented roof restoration company offers comprehensive services for any type of damage. Whether you’re suffering wind damage or fire damage, we can help with our insurance claim repairs and emergency services. You’ll appreciate the following benefits that our Ontario storm restoration contractors offer:
- Efficient Turnaround Times
- Warranty-Backed Products
- Flexible Financing Options
Get Started Today and Request a Quote
Don’t delay your installation any longer. If you’re in the market for residential or commercial roofing, waterproofing services, or storm repair, you can count on our professionals for a job well done. Reach out to us today and get a quote.
Take Advantage Now!
Up to 20% Off Roof Repair Service
4.9 out of 5
Out of 274 Google Reviews
Out of 274 Google Reviews
Roofing in Ontario: What Makes It Different
Ontario sits in the Inland Empire in San Bernardino County, a fast-growing city with a mix of established older neighborhoods and extensive newer tract housing. Its inland location brings hot, dry summers and strong seasonal winds off the Cajon Pass and surrounding open areas — conditions that test a roof’s edges, fasteners, and heat tolerance. Sun exposure is relentless here, and it ages roofing materials faster than many homeowners expect.
Ontario’s housing mix means everything from aging roofs on older homes to newer builds already needing their first repairs. Whatever the home, the priorities are the same: heat-resistant materials, wind-rated installation, and proper ventilation. We serve Ontario with honest assessments and quality work built for Inland Empire conditions.
Our Roofing Services in Ontario
Roof Repair. Leaks, wind damage, worn flashing, storm damage — we trace the leak to its true source and fix the cause, documented with photos.
Roof Replacement. When repairs stop making sense, we install roofing built for Ontario’s inland heat and wind: heat-resistant GAF Timberline HDZ Class A asphalt shingles, tile, and flat-roof systems, wind-rated and properly ventilated. We handle permits, coordinate inspection, and photograph every stage — see roof replacement and roof repair.
Storm and Wind Damage Restoration. Fast response, emergency tarping, and full photo documentation for insurance claims.
Tile Roofing. Repair, matching, restoration, and replacement for Ontario’s tile roofs.
Waterproofing. Deck, balcony, and flat-roof waterproofing. See our waterproofing services.
Free Roof Inspections. Thorough, photo-documented, and honest — no pressure, no sales pitch.
Heat and Wind: Roofing Built for the Inland Empire
Ontario’s climate is defined by two things a roof has to withstand: intense inland heat and strong seasonal winds. The sun bakes shingles and drives up attic temperatures, while wind off the open inland corridors works at ridges, edges, and any loose or aging material. A roof that isn’t installed with both in mind will age fast and fail early.
For Ontario homes, we install heat-resistant, wind-rated roofing with proper attic ventilation and secure fastening designed for the Inland Empire. Cool-roof and radiant-barrier options can also cut cooling costs significantly in this climate. We’ll assess your roof honestly and recommend what actually fits your home and budget.
Why Ontario Homeowners Choose Green Ladder Roofing
Green Ladder Roofing is a second-generation family company. Ontario homeowners want a roofer who does it right the first time and stands behind the work. Here’s what you get:
- GAF Master Elite Certified — the top 3% of roofing contractors nationwide, unlocking stronger, longer manufacturer warranties.
- Licensed and verifiable — CSLB License #1077296, fully insured.
- 300+ five-star reviews.
- Dedicated project manager — one point of contact from free inspection to final walkthrough.
- Photo documentation at every stage — a clear record and evidence that can support an insurance claim.
- Written scope, no surprises — every material, warranty, and cost spelled out before work begins.
Frequently Asked Questions About Roofing in Ontario
How much does a roof replacement cost in Ontario?
It depends on roof size, pitch, material, and hidden repairs found during tear-off. We provide a free, itemized written estimate with honest financing options.
How do you handle Ontario’s heat and wind?
We install heat-resistant, wind-rated roofing with proper ventilation and secure fastening designed for Inland Empire conditions.
Is the roof inspection really free?
Yes — 100% free with no obligation, with photo documentation that can also help when documenting your roof for a home insurance claim.
Are you licensed and insured?
Yes. Fully licensed (CSLB #1077296), insured, and GAF Master Elite certified.
Do you serve newer tract homes as well as older homes?
Yes. We work on homes of every age throughout Ontario, from established neighborhoods to newer developments.
Schedule Your Free Ontario Roof Inspection
Green Ladder Roofing serves Ontario and the surrounding communities. Every roof inspection, assessment, consultation, and roof review is 100% free with no obligation, and the photo documentation we provide can also help you when documenting your roof for a home insurance claim. Call (626) 340-0151 or book your free, no-obligation inspection today. Also serving nearby Rancho Cucamonga and Pomona.