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  • Windows
    • Window Replacement
    • Window Styles & Options
    • Infinity from Marvin Windows
      • Double-Hung
      • Glider
      • Casement & Awning
      • Bay & Bow
      • Specialty Shapes
    • Anlin Windows and Doors
    • Window Installation
    • Infinity Everwood Interior
    • Insert vs. Full Frame
    • Cleaning and Maintenance
    • DIY vs. Hiring A Pro
  • Doors
    • Entry Doors
    • Inswing Patio Doors
    • Sliding Patio Doors
    • The Complete Guide to Exterior Door Replacement
  • Siding
    • Diamond Kote
  • About Nex-Gen
    • About Us
    • Financing
    • Accreditations
    • Warranty
    • Blog
    • Showroom
  • Locations
  • Speak to a Nex-Gen Expert
  • Windows
    • Window Replacement
    • Window Styles & Options
    • Infinity from Marvin Windows
      • Double-Hung
      • Glider
      • Casement & Awning
      • Bay & Bow
      • Specialty Shapes
    • Anlin Windows and Doors
    • Window Installation
    • Infinity Everwood Interior
    • Insert vs. Full Frame
    • Cleaning and Maintenance
    • DIY vs. Hiring A Pro
  • Doors
    • Entry Doors
    • Inswing Patio Doors
    • Sliding Patio Doors
    • The Complete Guide to Exterior Door Replacement
  • Siding
    • Diamond Kote
  • About Nex-Gen

    • About Us
    • Financing
    • Accreditations
    • Warranty
    • Blog
    • Showroom
  • Locations
  • Speak to a Nex-Gen Expert

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Nex-Gen provides exceptional window and door replacement services to discerning homeowners along Colorado’s Front Range and in southern Wyoming. Customers trust our professional expertise and guidance, and value our superior Infinity from Marvin Windows product and reliable installation, support, and service.

Service Locations
Cheyenne, WY - Loveland, CO - Fort Collins, CO - Greeley, CO - Louisville, CO - Longmont, CO - Lafayette, CO - View All Locations
Quick Navigation
  • Windows
    • Window Replacement
    • Window Styles & Options
    • Infinity from Marvin Windows
      • Double-Hung
      • Glider
      • Casement & Awning
      • Bay & Bow
      • Specialty Shapes
    • Anlin Windows and Doors
    • Window Installation
    • Infinity Everwood Interior
    • Insert vs. Full Frame
    • Cleaning and Maintenance
    • DIY vs. Hiring A Pro
  • Doors
    • Entry Doors
    • Inswing Patio Doors
    • Sliding Patio Doors
    • The Complete Guide to Exterior Door Replacement
  • Siding
    • Diamond Kote
  • About Nex-Gen
    • About Us
    • Financing
    • Accreditations
    • Warranty
    • Blog
    • Showroom
  • Locations
  • Speak to a Nex-Gen Expert
Fort Collins

3600 Mitchell Dr. Unit 50C Fort Collins, CO 80525

(970) 517-3931

Monday-Friday 8AM - 5PM
Sat 10am - 3pm

Colorado Springs

70 Talamine Ct, Colorado Springs, CO 80907

(719) 270-4494

Mon - Fri 8am - 5pm

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