Business Details
50+ Years
experience
Custom Windows and Doors for Alaska's Climate
Capitol Glass has been serving Alaskans since 1951 with custom-manufactured windows and doors specifically engineered for extreme northern climates. As Alaska's only NFRC-certified insulated glass manufacturer, we combine decades of regional expertise with advanced materials like UPVC vinyl and proprietary argon-filled glazing systems to deliver superior thermal performance. Our products feature fusion-welded frames for structural integrity, triple and quad-pane configurations for unmatched insulation, and a 20-year warranty covering both frame and glass unit failures.We maintain rigorous quality control through independent lab testing in the Lower 48 while ensuring rapid two-day shipping across the state. Our engineering innovations address Alaska's unique challenges including 165 mph wind loads and subzero temperatures, with products designed to outperform conventional windows by eliminating cold drafts and reducing energy consumption.
Services
Triple-Pane Windows
Quad-Pane Windows
Fiberglass Doors
Shower Enclosures
Insulated Glass Units
Custom Window Manufacturing
Window Installation
Energy-Efficient Solutions
Commercial Glass Services
ShowerGuard Glass Upgrades
Details
- Year established: 1951
Highlights and features
- Alaska's only NFRC-certified insulated glass manufacturer
- Custom-engineered solutions for northern climate challenges
- 20-year warranty covering frame and glass unit failures
- Fusion-welded frames for superior structural integrity
- Two-day shipping across Alaska for urgent needs
Associations and certifications
- National Fenestration Rating Council (NFRC)
What people say
Warmer homes
Energy savings
Durable construction
Professional installation
Custom solutions
Services
Triple-Pane Windows
Our triple-pane windows feature 1-3/8" glazing pockets with argon gas filling for superior insulation. Engineered to reduce heat transfer while maintaining structural integrity against extreme weather conditions. Ideal for both residential and commercial applications requiring enhanced thermal performance and noise reduction.
Quad-Pane Windows
Unmatched four-pane configurations with dual glazing pockets deliver maximum insulation and soundproofing. Specifically designed for Alaska's harshest environments with fusion-welded frames and proprietary sealing systems. Provides exceptional energy efficiency while maintaining aesthetic flexibility for custom architectural designs.
Codel Fiberglass Doors
High-impact compression-molded fiberglass doors with Hydroshield Technology prevent moisture intrusion. Features include composite stiles, steel-reinforced frames, and ENERGY STAR-rated insulation. Available in multiple configurations with customizable finishes and hardware options for both residential and commercial applications.
Agalite Shower Enclosures
Custom-manufactured shower and bath enclosures using tempered glass and heavy-gauge aluminum. Offers multiple design options including patterned glass upgrades and decorative hardware. Includes limited lifetime warranty with professional installation services available across Alaska.
Insulated Glass Units
NFRC-certified insulated glass units with foam spacers and argon gas filling. Available in various configurations for residential, commercial, and specialty applications. Backed by 20-year warranty with independent lab testing verification for performance in extreme climates.
Questions
What makes Capitol Glass windows different from standard windows?
Our windows feature fusion-welded frames, proprietary argon-filled glazing systems, and are specifically engineered for Alaska's extreme climate with R-values matching wall insulation performance.
How long does window installation take?
We typically ship custom windows within two days of order confirmation, with installation completed by our local team of certified professionals.
Do you offer energy efficiency guarantees?
Our triple and quad-pane windows are designed to reduce heat transfer by eliminating cold drafts, with documented R-value performance metrics available for all product lines.
What warranty coverage is provided?
We offer a 20-year warranty covering frame and insulated glass unit failures, including labor coverage for the first 10 years.
Can windows be customized for unique homes?
All windows are custom-manufactured to fit specific architectural requirements, including special shapes, sizes, and color-matching options.
Are your products certified for Alaska's climate?
We are Alaska's only NFRC-certified manufacturer, with products independently tested to withstand 165 mph winds and subzero temperatures.
Reviews (4)
Rachelle
Sep 05, 2021
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Critical: Professionalism RUDEST sales person I have ever dealt with. Too busy to help people don't bother calling.
Hazel Sunshine Hall
Aug 12, 2021
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Excellent efficient service and their prices are far better than neighbors windows and door across the street. The place across the street quoted me three times more and twice as long to get a window fixed. Highly recommended.
Lynn Hanes
Jul 25, 2021
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Had a warranty job today and the gentleman that came out to do it came ready to work. I'd ask for him if I need another warranty done.
Touchee Yang
Jul 03, 2021
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Business is very unresponsive. Called Mike about warrantee work since I thought they stand behind their products. Left two voicemail with no response. After two weeks I called once again, Melissa and Jessica forward me to someone but again no one answered and it sent me to voicemail. This business seems to give you the run around. I do not recommend this business.
