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Top Sliding Glass Door Repair in Union, New Jersey Ranked
A smoothly operating sliding glass door is essential for easy access to your patio or backyard, natural light, and maintaining your home's energy efficiency. When these doors start sticking, leaking, or become damaged, it can disrupt your daily life and lead to higher utility bills. This guide is designed to help Union homeowners understand common sliding door problems, typical repair timelines and costs, and how to connect with qualified local professionals who can restore your door's function and security.

Windella Windows & Doors, Inc.
newark
Windella Windows & Doors, Inc. is a window and door company located in Newark, NJ, specializing in the installation and repair of Pella windows and doors. They offer a range of energy-efficient window styles and secure, attractive doors including sliding and patio options. As a Pella Platinum Elite Certified Contractor with over 30 years of industry experience, Windella provides expert replacement and repair services backed by a limited lifetime warranty. Founded in 2016, the company serves customers throughout New Jersey and New York, focusing on quality craftsmanship and customer satisfaction.

Window Repair NYC
244 5th Ave 2nd Floor, New York, NY 10001
Window Repair NYC is a licensed and insured window repair and replacement company based in New York, NY. They specialize in residential and commercial window and sliding glass door repairs, custom glass solutions, and same-day service. Their skilled team offers free in-home estimates and handles a variety of window types including double hung, bay, and casement windows.

Window Repair US Inc
101 6th Ave 8th Floor Suite #807, New York, NY 10013
Window Repair US Inc is a window repair and replacement company based in New York, NY. They provide services including window glass repair, sliding glass door repair, and window replacement for both residential and commercial properties. The company is known for its veteran experts, use of industry-standard hardware, and offers 24/7 emergency service within 24 hours.

The Glass Guru
130 Hackensack St, East Rutherford, NJ 07073
The Glass Guru in New York, NY, provides comprehensive glass services including window repair, sliding glass door repair, and window replacement for residential and commercial clients. They specialize in precise glass repair, custom mirrors, and shower glass installations, serving multiple communities in the Meadowlands area. Established in 2017, The Glass Guru combines local expertise with a broad range of glass solutions tailored to customer needs.

Kenemax Windows
22-68 31st St #56080, Astoria, NY 11105
Kenemax Windows is a New York, NY-based company specializing in window and sliding glass door installation, repair, and replacement. Established in 2010, they serve both residential and commercial clients, offering tailored solutions including consultations, drafting, engineering, and maintenance. Their expertise includes compliance with local building codes and working on new construction, historic, and renovation projects.
Common Sliding Glass Door Issues in Union Homes
Sliding patio doors are durable, but their moving parts and large glass panels are subject to wear and tear from New Jersey's varied climate. Recognizing the symptoms early can help you address problems before they become more expensive.
- Sticking or Hard to Open/Close: This is the most frequent complaint. It's often caused by worn-out rollers, a bent or dirty track filled with debris, or a door that has fallen out of alignment 1 2.
- Broken Locks and Handles: Over time, the locking mechanism or handle can become loose, stripped, or fail entirely, compromising your home's security 1.
- Damaged Glass: This includes cracks from impact, chips at the edges, or fogging between the panes, which indicates a failed insulating seal 2.
- Drafts and Energy Loss: You might feel cold air in winter or see higher energy bills. This is typically due to worn, cracked, or shrunken weatherstripping and seals around the door frame 1.
- Faulty Power Door Motors: For automatic sliding doors, motor failure means the door won't open or close electronically, requiring specialized repair 3.
Understanding Repair Costs and Timelines
The cost to fix your sliding glass door in Union depends heavily on the specific issue, the parts required, and the labor involved. Here's a breakdown of what you might expect for common repairs.
Cost Ranges for Specific Repairs
- Roller Replacement: Worn rollers are a common fix. The parts themselves may cost between $25 and $40, with labor adding $75 to $140, bringing the total to an estimated $100 to $220 1 4.
- Track Repair or Cleaning: If the aluminum track is dented or clogged, a professional can often straighten and clean it. This service typically ranges from $100 to $350 1.
- Glass Replacement: Replacing a single pane of glass in the door is more involved. Depending on the size and type of glass (e.g., standard, tempered, or Low-E), you can expect costs between $200 and $600 or more 1 5.
- Power Door Motor Replacement: This is a major repair. The motor unit alone can cost over $1,200, with total installation costs reaching $1,400 to $1,500 or higher 3 5.
General Project Cost Tiers
To budget effectively, consider these broader categories:
- Minor Repairs: Simple fixes like roller replacement, track cleaning, or handle adjustment often fall in the $100 to $300 range 1 6.
- Moderate Repairs: Addressing track damage, replacing a lock assembly, or a straightforward glass panel replacement can cost between $200 and $800 1 5.
- Major Repairs: Complex jobs like full glass unit replacement with special coatings or repairing an automatic door motor system can range from $600 to over $2,500 3 5 6.
How Long Will the Repair Take?
Timeline is often just as important as cost. Fortunately, many common sliding door fixes are quick.
- Quick Fixes (Hours to a Day): Services like roller replacement, track cleaning, and lock repairs can frequently be completed within a single visit, sometimes in just a few hours, especially by companies that offer emergency or same-day service 1 2.
- Medium Timeline (A Few Days): If your door needs a new glass panel, the repair might take a bit longer. The technician will need to take measurements, order the specific glass, and schedule a second visit for installation 1 7.
- Extended Timeline (Variable): Specialized repairs, such as fixing a power door motor or sourcing custom parts for an older door, may require more lead time to get the correct components and schedule a technician with the right expertise 3.
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Finding Reliable Sliding Door Repair Services in Union
For Union residents, there are several avenues to find experienced technicians. Local companies familiar with homes in Union County can provide accurate assessments and efficient service. Well-regarded providers in the area include established names like Glass Doctor and PJ Fitzpatrick, as well as highly-rated independent professionals listed on local business directories 2 8 9. Companies like Morris County Glass also serve the broader region, including Union 10. When evaluating a service provider, look for those that offer in-home estimates, clear warranties on their work, and have positive reviews specifically related to patio door or glass door repair.
Maintenance Tips to Avoid Future Repairs
A little preventative care can extend the life of your sliding door significantly and save you money.
- Clean the Tracks Monthly: Use a vacuum attachment and a damp cloth to remove dirt, leaves, and debris from the bottom track. This prevents buildup that can strain the rollers and cause sticking.
- Lubricate Moving Parts: Every six months, apply a silicone-based lubricant (not oil-based, as it attracts dirt) to the rollers and track.
- Inspect the Seals: Check the weatherstripping around the door frame for cracks or gaps, especially before winter. Replacing worn seals is a relatively inexpensive way to boost energy efficiency.
- Avoid Force: Never force a door that is sticking. This can bend the track or damage the rollers. Instead, investigate the cause-it's often just a dirty track.
When to Consider Repair vs. Full Replacement
While repair is often the most cost-effective solution, there are times when replacing the entire sliding glass door unit makes more sense. Consider replacement if:
- The door frame is warped, rotted, or has significant water damage.
- You have recurring problems despite multiple repairs.
- The door is very old, single-pane, and a major source of energy loss.
- You want to upgrade to a newer style, better security features, or more energy-efficient glass.
A reputable local professional can help you weigh the long-term costs and benefits of repair versus replacement for your specific situation 6.
Frequently asked questions
Sources
Footnotes
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Glass Door Repair | Shower Doors NJ | GlassnewarkNJ - https://glassnewarknj.com/door-repairs/ ↩ ↩2 ↩3 ↩4 ↩5 ↩6 ↩7 ↩8 ↩9 ↩10
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Sliding Glass Door Repair - https://glassdoctor.com/expert-tips/all-about-glass-doors/sliding-glass-door-repair ↩ ↩2 ↩3 ↩4
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Estimator Power Sliding Door Motor Replacement Cost - RepairPal - https://repairpal.com/estimator/power-sliding-door-motor-replacement-cost ↩ ↩2 ↩3 ↩4
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How Much Does It Cost to Replace Sliding Glass Door Rollers? - https://www.24hr-sliding-door-repair.com/blog/how-much-to-replace-sliding-door-rollers/ ↩
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How Much Does Sliding Glass Door Repair Cost? [2025 Data] - https://www.angi.com/articles/sliding-glass-door-repair-cost.htm ↩ ↩2 ↩3 ↩4
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Broken Sliding Glass Door: Repair or Replace? Expert Advice Inside - https://completewindowcare.com/broken-sliding-glass-door-repair-or-replace-expert-advice-inside/ ↩ ↩2 ↩3
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TOP 10 BEST Sliding Glass Door Repair in Elizabeth, NJ - Yelp - https://m.yelp.com/search?find_desc=Sliding+Glass+Door+Repair&find_loc=Elizabeth%2C+NJ ↩
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TOP 10 BEST Glass Door Repair in Union, NJ - Updated 2025 - Yelp - https://m.yelp.com/search?find_desc=Glass+Door+Repair&find_loc=Union%2C+NJ ↩
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Door Repair Services in Union Township, NJ - PJ Fitzpatrick - https://www.pjfitz.com/areas/new-jersey/hunterdon-county/door-repair-in-union-township/ ↩
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Door Repair Services in Union County, NJ - PJ Fitzpatrick - https://www.pjfitz.com/areas/new-jersey/door-repair-in-union-county/ ↩