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Top Window Repair in Boulder, Colorado Ranked
Dealing with a drafty, foggy, or broken window in Boulder can be frustrating, impacting your home's comfort, energy bills, and security. Professional window repair is the process of fixing specific issues without replacing the entire window unit, which can be a smart and cost-effective solution. This guide will help you understand common problems, repair options, and local considerations, empowering you to find the right local expert to restore your windows to proper working order.

The Glass Guru
5930 Ingalls St unit b, Arvada, CO 80003
The Glass Guru in Denver, CO, provides comprehensive glass services including window repair, replacement, custom mirrors, and door repairs for residential and commercial clients. They specialize in precise glass repair and custom mirror installations, serving a wide range of glass needs. The company serves multiple communities around Denver West, including Arvada and Aurora.

The Good Guys Glass & Mirrors
2053 W Hamilton Pl, Englewood, CO 80110
The Good Guys Glass & Mirrors is a family-owned glass repair and replacement company based in Denver, CO. They specialize in residential glass services including window repair, sliding glass door repair, and custom glass installations. With over 14 years of experience, they focus on craftsmanship, personalized service, and integrity in their work.

Acorn Glass
9005 W 44th Ave, Wheat Ridge, CO 80033
Acorn Glass is a window and glass service company based in Denver, CO, offering residential and commercial glass repair, replacement, and custom installations. They specialize in custom-cut shower enclosures, mirrors, and energy-efficient window installations, serving the Denver Metropolitan area since 2004. Their services include glass repairs, reglazing, and custom enclosures for gyms and wine rooms.

Daniels Glass LLC
2425 Federal Blvd, Denver, CO 80211
Daniels Glass LLC is a glass service company based in Denver, CO, specializing in window and sliding glass door repair and replacement. They serve the greater Denver metro area and the Foothills, focusing on restoring older wood, steel, and aluminum windows, including historic properties. Their services also include window and patio door screens, frameless and semi-frameless shower enclosures, and mirror replacement, combining over 25 years of experience with modern materials.

True View Windows & Glass
3200 W 71st Ave #20, Westminster, CO 80030
True View Windows & Glass is a glass services company based in Denver, CO, specializing in window and sliding glass door repair, replacement, and installation. They offer a comprehensive range of glass solutions including shower doors, custom mirrors, and emergency repairs. The company employs in-house installers who are AAMA and lead-safe certified, ensuring quality workmanship for both residential and commercial clients.
Common Window Problems in Boulder Homes
Boulder's unique climate, with its intense sun, dramatic temperature swings, and occasional hail, puts significant stress on residential windows 1. Understanding the specific symptoms is the first step toward a proper fix.
- Drafts and Air Leaks: Feeling a breeze near a closed window is a classic sign of failed seals, worn-out weatherstripping, or a poor fit between the window and its frame. This is a major source of energy loss, especially during Boulder's cold winters 2 3.
- Condensation Between Panes (Foggy Glass): When moisture appears trapped between the glass layers of a double- or triple-pane window, it signals a failed insulated glass unit (IGU) seal. This fogging cannot be wiped away and reduces the window's insulating value 4 5.
- Broken or Cracked Glass: This can result from impact, stress, or thermal shock. A broken pane compromises security, insulation, and weather protection 3 6.
- Sticking or Difficult Operation: Windows that are hard to open, close, or lock are often suffering from warped frames (common in wood), dirt buildup in the tracks, or failed balance mechanisms in single- and double-hung windows 7 8.
Repair Solutions for Each Issue
Not every window problem requires a full replacement. Here's how local professionals typically address the most frequent issues.
Fixing Drafts and Improving Seal Integrity
For minor air leaks, a technician might replace the compressible weatherstripping around the sash or frame, apply new exterior caulking, or add insulation around the window jambs 2 7. If the draft is caused by a failing IGU seal (where the glass itself is still intact), the solution is to replace the sealed glass unit within the existing frame, which is more affordable than a full window replacement 5.
Clearing Foggy Windows with IGU Replacement
When the seal on an insulated glass unit fails, the only permanent repair is to replace the entire IGU. A professional will remove the interior stops or gaskets, take precise measurements of the glass pocket, order a new sealed unit from a glass fabricator, and install it into your existing window frame. This preserves your original frames and trim while restoring clarity and efficiency 4 3.
Glass Pane Repair and Replacement
For a single broken pane in a traditional sash, the glass can be replaced. The repair person will carefully remove the broken glass, clean the frame, install a new pane of glass (often single-pane), and secure it with glazing points and putty or a gasket system 6. For modern double-pane windows, a broken outer or inner lite typically requires a full IGU replacement, as described above 3.
Restoring Smooth Operation
Sticking windows often need a good cleaning of the tracks and a lubrication of the moving parts. For more persistent issues, the repair may involve adjusting or replacing the balance springs, rollers, or hinges. If the frame itself is warped, a pro might plane down the wood or adjust the frame alignment, though severe warping may indicate a need for replacement 7 8.
Understanding Costs and Timelines for Window Repairs
Being informed about potential costs and project duration helps set realistic expectations when consulting with local window service companies.
What to Expect for Repair Pricing
Repair costs vary based on the window type, size, and the specific problem. Here's a general range based on local industry data:
- Minor Repairs (Hardware, Weatherstripping): $70 to $200 for addressing operational issues or minor seals 2 9.
- Foggy Glass (IGU Seal Replacement): $100 to $200 per window unit to replace the failed insulated glass panel 4 10.
- Broken Glass Pane Replacement: $150 to $300 or more, depending on the glass type, size, and whether it's part of a double-pane unit 9 6.
- Full Window Replacement: When repair isn't viable, replacement costs in Boulder typically range from $400 to over $1,200 per window, heavily influenced by the window's material, style, size, and energy performance 2 10.
Project Timelines in the Boulder Area
How long a repair takes depends on its complexity and the season.
- Simple Repairs: Tasks like weatherstripping, hardware fixes, or track cleaning can often be completed in a few hours to a single day 7 11.
- IGU or Custom Glass Replacement: This is a multi-step process. After an on-site measurement, the new sealed unit must be fabricated off-site, which can take 1 to 3 weeks. Installation is usually quick once the glass arrives 2 12.
- Seasonal Considerations: The peak season for window work in Colorado runs from April through October 12. Scheduling during this busy period may extend lead times, so planning ahead for non-urgent repairs can be beneficial.
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Local Factors Influencing Window Repair in Boulder
Boulder isn't just any city, and its environment and regulations play a direct role in your window repair decisions.
- Climate Stress: The high-altitude sun delivers intense UV radiation that can degrade window seals and frames over time. Combined with temperature swings that can exceed 40 degrees in a day, these conditions accelerate wear and make robust, well-installed repairs crucial 1.
- Energy Code Compliance: Colorado has adopted building codes that emphasize energy efficiency. While a like-for-like glass repair may not trigger code updates, any significant alteration or full replacement must meet current Energy Star standards for the region. A reputable local professional will be familiar with these requirements 1.
- Hail Damage: Spring and summer storms can bring hail, which is a common cause of broken glass and damaged window frames. It's important to distinguish between cosmetic frame dings and functional damage that affects operation or sealing.
When to Repair vs. Replace Your Windows
Repair is usually the best first option, but there are times when replacement is more practical.
- Choose Repair When: The window frame is structurally sound, the issue is isolated (like one broken pane or a single foggy IGU), the windows are relatively new, or your goal is a cost-effective fix to extend the window's life 6.
- Consider Replacement When: The frame is rotted, warped beyond repair, or you have widespread failure across multiple windows. Replacement also makes sense if you're seeking a major upgrade in energy efficiency, noise reduction, or aesthetics, or if the cost of repairs approaches the cost of a new, more efficient window 2 10.
Working with an experienced local provider ensures you get an honest assessment of whether a window fix or a full installation is the right long-term investment for your Boulder home.
Frequently asked questions
Sources
Footnotes
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How Much Does Window Repair Cost in Denver? [2025 Data] - https://www.angi.com/articles/how-much-do-window-repairs-cost/co/denver ↩ ↩2 ↩3
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Window Repair vs. Replacement: 2025 Cost Breakdown - https://www.budgetglasscompany.com/blog/window-repair-vs-replacement-2025 ↩ ↩2 ↩3 ↩4 ↩5 ↩6
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Window and Glass Company | Denver, Colorado - https://www.triedandtrueglass.com/ ↩ ↩2 ↩3 ↩4
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The 10 Best Window Repair Companies in Boulder, CO (2025) - https://homeguide.com/co/boulder/window-repair/ ↩ ↩2 ↩3
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Window Repair in Boulder - https://www.seethelightwindows.com/window-repair-in-boulder/ ↩ ↩2
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Home Window Repair: Fix or Replace Easily | Allnite Glass Company - https://www.allniteglass.com/home-window-repair-guide-to-fixing-or-replacing-your-windows ↩ ↩2 ↩3 ↩4
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Boulder Window Repair Service | Mr. Handyman - https://www.mrhandyman.com/east-boulder-broomfield-erie/about-us/window-repair/ ↩ ↩2 ↩3 ↩4
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Broken Window Coverings: Repair or Replace? A Guide for Boulder ... - https://www.bumblebeeblinds.com/boulder-co/about/blog/categories/tips/broken-window-coverings-repair-or-replace-a-guid/ ↩ ↩2
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Top Window Repair Pros In Boulder, CO - Modernize - https://modernize.com/near-me?find=window-repair&location=Boulder,CO ↩ ↩2
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20 Best Window Companies in Boulder, CO (2025 Reviews) - https://www.ecowatch.com/windows/replacement/co/boulder ↩ ↩2 ↩3
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Window Repair | Denver, Colorado | Tried & True Glass - https://www.triedandtrueglass.com/window-repair ↩
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Best Window Replacement Timeline in Colorado: Weather Factors ... - https://www.fiveseasonswindows.com/best-window-replacement-timeline-in-colorado-weather-factors-project-planning ↩ ↩2