Windows & Doors in Glendale, CA

Windows & Doors for Glendale homeowners

Glendale homeowners trust A1 Builders for windows & doors. From the hillside homes of the Verdugos to the flats below, we plan access and durable finishes so your roof and paint hold up to the exposure.

Old, single-pane windows and worn doors leak air, drive up energy bills, and let in street noise. A1 Builders replaces them with energy-efficient, dual-pane windows and quality doors — precisely measured, properly flashed, and sealed so they perform for decades. The result is a quieter, more comfortable home that looks sharper from the curb.

We serve Adams Hill, Montrose, Verdugo Woodlands, Rossmoyne, and the rest of Glendale (Los Angeles County).

Windows & Doors problems we solve in Glendale

• ✓Drafty single-pane windows and high energy bills
• ✓Foggy, hard-to-open, or painted-shut windows
• ✓Worn entry doors and sticking sliding glass doors
• ✓Street noise getting into living spaces

Our windows & doors process

1. 1

   Free Measure & Consult

   We measure each opening and help you choose the right windows and doors.

2. 2

   Order & Schedule

   We order to exact spec and schedule installation around you.

3. 3

   Remove & Prep

   Careful removal of old units and prep of each opening.

4. 4

   Install & Seal

   Precise installation, proper flashing, insulation, and weatherproof sealing.

5. 5

   Walkthrough

   We test every window and door and review the work with you.