
Find the Best Window Repair for Your Business
No obligation • Fast responses • Nationwide coverage
- Home
- Window Repair
- California
- Glendora

Why you can trust Window Rank
Window Rank is a leading U.S. resource for homeowners researching window repair, replacement, egress windows, and sliding glass doors. Our editors analyze services, credentials, and customer feedback to present clear, unbiased comparisons. Companies cannot pay to change our evaluations or featured information.
Search providers near you
Top Window Repair in Glendora, California Ranked
Living in Glendora means enjoying beautiful views of the San Gabriel Mountains, but it also means dealing with the wear and tear that comes with Southern California living on your home's windows. From the occasional Santa Ana winds to the intense sun, your windows face a lot. When issues like drafts, fogging, or sticking sashes arise, timely window repair is essential for maintaining your home's comfort, energy efficiency, and security. This guide will help you understand the common problems local homeowners face, the typical solutions and costs, and how to connect with qualified professionals in the Glendora area to get your windows functioning perfectly again.

Hometime Windows & Doors
231 E Dyer Rd Unit J, Santa Ana, CA 92707
Hometime Windows & Doors is a window repair, replacement, and sliding glass door installation company serving Long Beach, CA. They manufacture and install energy-efficient windows and doors locally in Southern California, focusing on modern and classic designs that improve home comfort and energy savings. The company offers custom solutions tailored to each project and provides a lifetime no-hassle warranty. With over 2400 five-star reviews, Hometime emphasizes honest proposals and customer satisfaction.

SoCal Window Pros
8975 Vernon Ave Ste A, Montclair, CA 91763
SoCal Window Pros is a family-owned window and sliding glass door company serving Fontana, CA. They specialize in window replacement, sliding door installation, and repair, offering a range of high-quality, energy-efficient products from trusted manufacturers. With over 20 years in the industry, they focus on improving home comfort by reducing noise and enhancing temperature regulation. Their team is known for thorough measurements, professional installation, and clear communication throughout the process.

Hometime Windows & Doors
1471 Pomona Rd suite f, Corona, CA 92882
Hometime Windows & Doors is a window repair, replacement, and sliding glass door installation company based in Irvine, CA. They manufacture and install energy-efficient windows and doors locally in Southern California, focusing on modern and classic designs that improve home comfort and reduce energy costs. The company offers a lifetime no-hassle warranty and emphasizes honest proposals and customer satisfaction. Their services include custom consultations and professional installations to transform homes with high-quality materials.

Retro Windows and Patio Doors LLC
9590 Catawba Ave, Fontana, CA 92335
Retro Windows and Patio Doors LLC is a family-owned business serving Riverside, CA, and the broader Inland Empire area. They specialize in residential and commercial window and patio door replacement, installation, and repairs. Their services include energy-efficient and custom-style windows, patio doors, sunroom conversions, and electrical installations. Established in 2015, the company is licensed, insured, and bonded, offering personalized solutions for new construction and retrofit projects. They also provide commercial storefront services and have completed over 1,000 projects.

Hometime Windows & Doors
1081 W 9th St, Upland, CA 91786
Hometime Windows & Doors is a window repair, replacement, and sliding glass door installation company based in Fontana, CA. They manufacture and install energy-efficient windows and doors locally in Southern California, focusing on improving home comfort and energy savings. Their services include custom consultations and installations designed to update and transform homes with modern or classic styles. The company emphasizes honest proposals and offers a lifetime no-hassle warranty for peace of mind.
Common Window Issues in Glendora Homes
Windows are complex systems with multiple components that can fail over time. Understanding the specific problem is the first step toward an effective and cost-efficient fix. Here are the most frequent issues that prompt Glendora residents to seek window restoration services.
Drafts and Air Leaks
A noticeable draft near your windows is more than just a nuisance; it's a sign that conditioned air is escaping, forcing your HVAC system to work harder and driving up your energy bills 1. In Glendora, drafts are often caused by failing caulk around the exterior frame or worn-out weatherstripping along the sash. The fix typically involves re-caulking gaps or replacing the weatherstripping, which can be a relatively straightforward repair 2 3.
Broken or Cracked Glass
Whether from a stray baseball, a storm, or thermal stress, broken glass is a clear call for repair. The solution depends on your window type. A single pane of glass can often be patched or replaced individually. However, if you have modern double- or triple-pane insulated glass units (IGUs), a crack usually means the entire sealed unit has failed and must be replaced as one piece to restore its insulating properties 1 4.
Condensation Between Panes (Foggy Windows)
Seeing persistent fog or moisture trapped between the layers of glass is a telltale sign of a broken seal in an insulated glass unit. This seal failure allows argon gas to escape and moisture to seep in, compromising the window's thermal performance and clarity. Unfortunately, cleaning the inside is impossible; the only remedy is to replace the entire IGU while keeping the existing window frame 4 5.
Sticking or Difficult-to-Operate Windows
Windows that are hard to open, close, or lock are a common frustration. This is often due to misaligned sashes, worn or broken balance mechanisms (like springs or spiral rods), or a buildup of dirt and paint in the tracks. Repairing this usually involves cleaning, lubricating, and adjusting or replacing the hardware to restore smooth operation 2 3.
Rotted or Damaged Window Frames
Wooden window frames, especially in older Glendora homes, are susceptible to moisture damage and rot. Minor surface rot can sometimes be addressed with epoxy fillers and sealants. More extensive decay, however, may require a partial frame repair or, in severe cases, a full window replacement to ensure structural integrity and prevent further damage to the surrounding wall 3 6.
Understanding Window Repair Costs
The cost of fixing a window can vary widely based on the problem's complexity, the type of window, and the size of the glass. Having a realistic budget in mind can help you evaluate estimates from local professionals.
Cost Ranges for Typical Repairs
- Minor Repairs ($50 - $150): This range covers basic services like re-caulking, replacing weatherstripping, or fixing minor hardware issues like locks or latches 1 7.
- Mid-Range Repairs ($180 - $400): This is the typical cost bracket for replacing a single pane of glass or a standard-sized double-pane IGU. It also includes more involved hardware repairs, such as replacing balance systems for hung windows 3 8.
- Major Repairs ($400+): Complex jobs fall into this category. This includes replacing large or custom-shaped IGUs, repairing significant frame rot, or addressing issues with specialty windows like bay or picture windows 1 6.
Factors That Influence Your Final Price
Several key elements will affect your repair quote:
- Window Type and Size: A large picture window or a custom-shaped arched window will cost more to repair than a standard double-hung sash.
- Glass Type: Standard float glass is less expensive than tempered, laminated, or Low-E coated glass, which may be required for safety or energy codes.
- Extent of Damage: Surface-level fixes are cheaper. Repairs that involve dismantling the window unit or addressing structural frame issues are more labor-intensive.
- Accessibility: Windows on the ground floor are easier and safer to service than those on a second story or in a hard-to-reach location.
Find the perfect window repair for your needs
Get personalized recommendations and expert advice
The Window Repair Process: What to Expect
Knowing what happens during a typical repair job can make the process smoother and set clear expectations.
1. Diagnosis and Estimate: A qualified technician will inspect the window to diagnose the root cause, not just the symptom. They should provide a detailed written estimate that breaks down parts, labor, and timeline. 2. Ordering Parts: For repairs requiring new glass or specific hardware, there may be a lead time. Custom IGUs, in particular, often take 1-2 weeks to manufacture and deliver 9. 3. The Repair Work: For minor fixes like weatherstripping, the work may be completed in a few hours. IGU replacement involves carefully removing the old glass unit from the frame, cleaning the channel, and installing and sealing the new unit. Frame repair work can take longer, depending on the materials and techniques used (e.g., epoxy vs. wood replacement) 2 4. 4. Clean-up and Inspection: A reputable professional will clean up the work area and demonstrate that the window operates correctly before considering the job complete.
Choosing a Service Provider in Glendora
Your home is your biggest investment, so choosing the right person for the job is crucial. Look for providers with:
- Local Experience: Companies familiar with Glendora understand the local climate and common architectural styles.
- Proper Licensing and Insurance: Always verify that the contractor holds a valid California license and carries both liability and workers' compensation insurance.
- Transparent Communication: They should be willing to explain the problem, the proposed solution, and the cost breakdown clearly.
- Warranties: Ask about warranties on both parts and labor. A company that stands behind its work offers valuable peace of mind.
Local resources like Glendora Window Inc. and highly-rated professionals found through community reviews can be a great starting point for your search 10 11 12.
Maintaining Your Windows Post-Repair
Once your windows are repaired, a little maintenance can go a long way in preventing future issues and extending their life.
- Regular Cleaning: Keep tracks and sashes clean of dirt and debris.
- Annual Inspection: Check caulking and weatherstripping each year for cracks or gaps, especially before the rainy season.
- Gentle Operation: Avoid forcing windows open or closed. If they stick, investigate the cause rather than applying excessive force.
- Proper Hardware Care: Lubricate moving parts annually with a silicone-based lubricant.
Addressing window problems promptly not only restores comfort and view but also protects your home from moisture damage and energy loss. By understanding the common issues, costs, and process, you can make an informed decision and keep your Glendora home in top condition.
Frequently asked questions
Sources
Footnotes
-
Window Repair Cost: What You'll Actually Pay - https://argowindowrepair.com/blog/window/window-repair-cost ↩ ↩2 ↩3 ↩4
-
Window Repair and Installation in Glendora, CA - https://www.glendalequalitywindows.com/glendora-ca ↩ ↩2 ↩3
-
2026 Window Repair Cost | Angi - https://www.angi.com/articles/how-much-do-window-repairs-cost.htm ↩ ↩2 ↩3 ↩4
-
Window Repair Costs in 2025 - Prices & Services - https://window-gurus.com/blog/the-cost-of-window-repair/ ↩ ↩2 ↩3
-
How to Fix Moisture and Condensation Between Double ... - https://glassdoctor.com/expert-tips/all-about-window-glass/condensation-between-window-panes ↩
-
Window Repair Cost Guide by State 2026 - EcoWatch - https://www.ecowatch.com/windows/repair/cost ↩ ↩2
-
How Much Does Window Repair Cost in Los Angeles? | Angi - https://www.angi.com/articles/how-much-do-window-repairs-cost/ca/los-angeles ↩
-
How Much Does It Cost to Repair a Window in 2025? - HomeAdvisor - https://www.homeadvisor.com/cost/doors-and-windows/repair-windows/ ↩
-
Double Pane Window Glass Replacement | City Glass - https://cityglasscompany.net/double-pane-window-glass-replacement/ ↩
-
TOP 10 BEST Window Repair in Glendora, CA - Yelp - https://m.yelp.com/search?find_desc=Window+Repair&find_loc=Glendora%2C+CA ↩
-
GLENDORA WINDOW INC. - https://glendorawindow.com/ ↩
-
TOP 10 BEST Home Window Repair in Glendora, CA - Yelp - https://m.yelp.com/search?find_desc=Home+Window+Repair&find_loc=Glendora%2C+CA ↩