Window Installation & Replacement in Van Nuys

A window leaks at the installation, not the glass. We flash, seal, and insulate every window to manufacturer spec and building code — integrating the window into your weather-resistive barrier so water stays out for the life of the home. Cut corners here are the #1 cause of water damage behind walls.

We install energy-efficient dual-pane and Title 24-compliant glazing that cuts your heating and cooling costs and quiets street and ocean noise. From a single broken window to a whole-home replacement, we handle measurements, ordering, and installation.

Learn more about window installation & replacement or explore our Los Angeles County service area.

Consultation

We measure, assess existing frames, and recommend window styles and glazing for your home.

Ordering

Custom or standard windows ordered with correct specifications and lead-time coordination.

Installation

Removal of old windows, flashing, sealing, insulation, and trim — done to code.

Walkthrough

Operation check, cleanup, and final walkthrough.

Explore All Services

Full-service construction & remodeling

Window Installation & Replacement is just one of the services we offer in Van Nuys. See our complete range of construction and remodeling services.

Replacement windows vs. new-construction windows: what's the difference?

Replacement (insert) windows fit inside the existing frame — faster, less expensive, and a good choice when the existing frame is square, sound, and properly flashed. New-construction (full-frame) windows replace the entire assembly including the frame and exterior flashing — necessary when the frame is rotted, when you're changing the window size, or when the original installation was improperly flashed. In homes with known water-intrusion history, full-frame replacement with new flashing is the safer investment.

Why does window flashing matter?

A premium window installed with poor flashing will leak. A mid-grade window installed with proper flashing will not. The flashing system — sill pan, jamb tape, head flashing, and integration with the weather-resistive barrier — is what keeps water out of the wall cavity. Sill pan flashing at the bottom of every opening is the most critical, as the sill is the most common leak point. Head flashing must lap over the weather-resistive barrier so water sheds down and out, never behind it.

What causes water intrusion around windows?

The most common cause is improper or missing flashing. Water gets behind the weather-resistive barrier at the window opening and travels into the wall cavity. Proper flashing — sill pan flashing, jamb flashing, and head flashing integrated with the WRB — directs water back out. Failed sealant at the window-to-frame joint and missing or inadequate insulation that allows condensation are also common causes.

Who handles permits for windows in Van Nuys?

Van Nuys is a neighborhood within the city of Los Angeles. A licensed general contractor pulls all required permits and coordinates inspections with the appropriate building department so the work is legal, insurable, and documented for resale.

How do I get a windows estimate in Van Nuys?

Call (818) 205-8820 or fill out the contact form below. A project manager will visit your Van Nuys property, assess the scope, and provide an honest, itemized estimate — no pressure, no obligation. Learn more about our window installation & replacement services or explore all services in Van Nuys.