Business Details
50+ Years
experience
Alaska's Trusted Window & Door Experts Since 1951
Founded in 1951, Capitol Glass has served Alaskans as the state's only nationally-certified insulated glass and window manufacturer. Our expertise stems from decades of engineering windows and doors specifically designed for Alaska's extreme climate, combining durability with energy efficiency. We prioritize customer satisfaction by offering expert advice without aggressive sales tactics, ensuring every product meets the unique demands of our northern environment. Our commitment to quality is demonstrated through rigorous NFRC certification processes and industry-leading warranties. Our team combines technical proficiency with deep regional knowledge to deliver solutions that enhance home comfort and reduce energy costs. Our manufacturing capabilities include custom-order shipments within two days, supported by local installation professionals.We partner with top-tier material suppliers like Cardinal and Hartung Glass Industries to maintain exceptional product standards. From residential to commercial applications, our offerings include double-, triple-, and quad-pane windows, fiberglass doors, and specialty glass products. Our Northerm brand exemplifies our dedication to innovation, featuring patented designs that withstand hurricane-force winds while maintaining thermal performance. With a legacy spanning seven decades, we remain committed to advancing building science through products that prioritize long-term value over short-term savings.
Services
Custom Window Manufacturing
Fiberglass Door Installation
Shower Enclosure Design
Insulated Glass Units
Commercial Window Solutions
Triple-Pane Windows
Storm Damage Repair
Energy Efficiency Consultation
Door Replacement Services
Glass Repair & Replacement
Details
- Year established: 1951
Highlights and features
- 70+ years of Alaskan climate-specific window engineering
- Only NFRC-certified glass manufacturer in Alaska
- 20-year warranty on insulated glass units
- Custom orders shipped within two days
- Engineered solutions withstand 165 mph winds
Associations and certifications
- NFRC
- ENERGY STAR
Services
Custom Windows
Crafted for Alaska's harshest conditions, our Northerm windows feature patented designs with multiple panes and composite frames that withstand 165 mph winds. The proprietary glazing system prevents air and water infiltration through rubber gaskets rather than inferior tape seals. Triple- and quad-pane options provide superior insulation with R-values up to R8.33, significantly reducing heating costs while maintaining structural integrity through extreme temperature cycles.
Fiberglass Doors
Codel fiberglass doors utilize Hydroshield Technology with composite stiles and rails to prevent moisture intrusion. These maintenance-free entry solutions feature commercial-grade hardware and ENERGY STAR-rated insulation with R-values exceeding wood doors by 600%. The multi-point locking system achieves 10 contact points for enhanced security and weather tightness in extreme northern climates.
Insulated Glass Units
Our NFRC-certified IGUs undergo rigorous testing at independent laboratories to ensure performance in subzero temperatures. Utilizing foam spacers instead of traditional metal, these units prevent thermal transfer while maintaining structural stability through freeze-thaw cycles. Certified manufacturing processes guarantee 20-year warranties on residential installations with argon gas fills enhancing thermal efficiency.
Shower Enclosures
Agalite shower systems combine tempered glass with heavy-gauge aluminum frames for lifelong durability in wet environments. Available in seven design series with customization options including ShowerGuard glass and decorative hardware. The precision-engineered components ensure leak-proof installations while offering 2 million+ proven configurations for both DIY and luxury applications.
Window Replacement
Fast-track home upgrades with our two-day glass delivery and certified installer network. We replace outdated windows with energy-efficient models that reduce heating costs by 30-50% through advanced thermal barriers. The patented compression sealing technology minimizes drafts while maintaining structural integrity against Alaska's high winds and temperature extremes.
Questions
What makes Alaska-specific windows different from standard models?
Our windows feature wider frames with 7/8" glazing pockets for proper argon fill spacing and foam spacers that prevent thermal contraction/expansion issues common in other regions.
Do you offer same-day window repairs?
While we don't provide emergency repairs, most standard glass replacements can be completed within two days through our stocked inventory and local installers.
Are your energy-efficient windows worth the investment?
Triple-pane models can reduce heating costs by up to 50% compared to standard double-pane windows, with our R8.33 picture windows performing equivalent to wall insulation.
What warranty coverage do you provide?
We offer a 20-year limited warranty on insulated glass units (residential) and lifetime warranties on Agalite shower enclosures with registration requirements.
Can you match existing window styles in older homes?
Yes, our custom manufacturing capabilities include replicating historic window designs while incorporating modern energy-efficient technologies for improved performance.
