Window Replacement in Thousand Oaks, CA | Meridian Windows & Doors - Meridian Windows & Doors

Window Replacement in Thousand Oaks - Written Price Before Anything Is Ordered

Free in-home measure and an exact written price before anything is ordered. Energy-rated units, professional installation by our own crews, and a workmanship warranty on the install.

Call to schedule your free estimate

626+
Cities Served
Free
Written Quotes
Licensed & Insured Written Quotes Free Estimates All Brands Satisfaction Guarantee
Every visit starts with

Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style

Styles & brands we work with

Single hung
Single hung
Double hung
Double hung
Horizontal roller
Horizontal roller
Casement
Casement
Bay & bow
Bay & bow
Sliding glass doors
Sliding glass doors
Entry doors
Entry doors
Impact garage doors
Impact garage doors
PGT
PGT
CGI
CGI

Before & after – our own jobs

Before - Recent ProjectBeforeAfter - Recent ProjectAfter
Recent Project
Before - Full RestorationBeforeAfter - Full RestorationAfter
Full Restoration
Before - Complete UpgradeBeforeAfter - Complete UpgradeAfter
Complete Upgrade

Fast, Reliable Window Replacement Across Thousand Oaks

Most full-frame window replacements in Thousand Oaks run $900 – $1,800 per opening installed, with insert replacements typically landing between $600 – $1,200 per window. Those are real numbers from the Conejo Valley market, and they come from jobs we scope every week along the 101 corridor. If your windows are 30-plus years old, fogged between the panes, or fighting a losing battle with Santa Ana winds, call (817) 686-2228 and our Window Replacement team will walk the job with you and put the exact price on paper before any work starts.

Before and after professional residential sliding glass door and window replacement in Thousand Oaks, CA

Call (817) 686-2228

We know Thousand Oaks not as a dot on a route map but as a place where the wind comes hard off the ridgelines and the stucco on 1970s tract homes does not forgive a careless flashing detail. That is why every quote starts with the exposure, not the glass brochure.

Why Meridian Windows & Doors Is Thousand Oaks’s Preferred Window Replacement Company

Homeowners in Thousand Oaks call us because we answer the phone. A live person picks up 24 hours a day, seven days a week, every day of the year. No voicemail loops, no “we’ll get back to you next business day.” When a window fails on a Saturday morning and the wind is pushing through the opening, the person who answers is the person who can get a crew scheduled.

The work itself is backed by the 365-Day Done Right Promise: every installation and repair is covered in writing for a full year. If the work fails within that period, we return at no charge, including a free second visit. That guarantee is not a marketing line; it is printed on every job contract. Elliot Vance, who leads Meridian Windows & Doors, holds every crew to The Garrison Standard, the operating code that has governed the Garrison Partners family since 2009. Written prices before work begins. Background-checked, uniformed technicians. A job site left clean. No exceptions.

Window Replacement Company in Thousand Oaks

As a Window Replacement company working across Thousand Oaks, we handle the full sequence: removing the old sash and frame, correcting any rot or water damage at the rough opening, installing the new unit, flashing and sealing the perimeter, and finishing the interior trim. The permit process matters here. Thousand Oaks requires a building permit for window replacement when the opening size changes or when structural framing is touched, and the city’s plan review looks closely at wind exposure on hillside elevations. We pull the permit, schedule the inspection, and stand with the inspector until it passes.

Full Frame Replacement

Full frame replacement means the entire window, including the frame and sill, comes out and a complete new unit goes in. In Thousand Oaks this is common on 1960s and 1970s homes where the original aluminum frames have corroded or the rough opening has shifted. Full frame work runs $900 – $1,800 per opening installed.

Insert Window Replacement

Insert replacement fits a new sash and track assembly inside the existing frame. It is faster, less invasive, and makes sense when the current frame is square and structurally sound. In Thousand Oaks, insert replacements typically cost $600 – $1,200 per window and work well on the newer Rancho Conejo and Lang Ranch tracts where the original frames were built plumb.

Window Glass Replacement in Thousand Oaks

When the frame is still good but the insulated glass unit has failed – fog between the panes, condensation, a crack from a kicked-up rock on the 23 – a Window Glass Replacement in Thousand Oaks addresses the glass without full frame surgery. We replace the IGU, or insulated glass unit, with a new sealed unit spec’d for the same wind and thermal load as the original. Glass-only replacement typically runs $350 – $750 per window in Thousand Oaks, depending on whether the sash can be reglazed in place or needs to be pulled and reset.

Fogged and Failed Seals

A failed seal shows up as haze or moisture trapped between the panes. There is no way to clean it; the IGU must be replaced. We measure the sash thickness and spacer profile so the new unit drops in without modifying the frame.

Impact and Low-E Upgrades

If the original glass is non-impact and the window faces open ridgeline wind, upgrading to laminated impact glass at the same time as a reglaze is often the right call. Low-E coating – a thin metallic layer that reflects heat while letting light through – cuts solar gain in Thousand Oaks summers and helps with Title 24 compliance when the opening is touched.

Trusted Brands We Service in Thousand Oaks

We are authorized to install and replace products from CGI, CWS, ES Windows, and ECO Window Systems, among the eight manufacturer lines in our portfolio. That matters in Thousand Oaks because hillside homes often need a CGI or ES Windows unit rated for windborne debris, while a single-story ranch in Newbury Park might be better served by a CWS or ECO Window Systems vinyl line at a lower cost. Because we stock parts for these brands locally, turnaround on warranty work and glass replacement is measured in days, not weeks. We service Thousand Oaks from our Los Angeles-area scheduling office; crews work locally throughout the Conejo Valley.

Modern dark grey aluminum window frame installation on textured stucco wall in Thousand Oaks, CA

Common Window Replacement Problems We See in Thousand Oaks Homes

  • Under-rated glazing on hillside elevations. A cheap vinyl insert with a standard design pressure rating will fail inspection on an exposed ridgeline off Westlake Boulevard or Lynn Road. The plan reviewer will flag it, and now the homeowner is paying for a second set of windows.
  • Water intrusion at the stucco jamb. Thousand Oaks tract homes from the 1960s and 1970s have stucco returns that need a proper flashing detail when the frame comes out. Skip the flashing, and the first winter rain will find the gap.
  • Measuring only the visible opening. Older Conejo Valley homes often have rough openings that are not square. Measure just the sash and the new frame will not seat. We measure the rough opening before ordering anything.
  • Fogged IGUs from seal failure. This is the most common glass-only call in Thousand Oaks. The windows are not broken; the seals have died from years of thermal cycling, and the fix is a new IGU, not a whole new window.

Thousand Oaks sits in a high-wind and wildfire-prone zone. That geographic fact is the spine of every window decision here. Many hillside homes above the 101 corridor need windows rated for both windborne debris and ember exposure, so the required design pressure and glazing spec often differ from what a standard inland Ventura County replacement would call for. A window that is perfect for a shaded Simi Valley tract may not pass inspection on an exposed elevation above Lynn Road. We quote the wind load first, then the glass.

We recently replaced thirteen double-hung units on a 1980s two-story in the Lynn Ranch area off Lynn Road, where the original single-pane aluminum windows had failed seals and cloudy insulated glass units. Because the rear elevation faces open ridgeline wind, we spec’d impact-rated laminated glass with a low-E coating and verified the design pressure against the exposure, then matched the new jambs and sash profiles to the existing stucco returns so no re-stucco was needed. The job passed inspection on the first visit.

Pricing for Window Replacement in Thousand Oaks, CA

For planning purposes, full frame replacement in Thousand Oaks runs $900 – $1,800 per window installed. Insert replacement runs $600 – $1,200 per window. Glass-only replacement runs $350 – $750 per unit. The biggest cost drivers are glazing type (impact-rated laminated glass adds $150 – $400 per window over standard low-E), frame material, and whether the rough opening needs carpentry correction. Permits run a few hundred dollars and are itemized on your quote. The price we put in writing before work starts is the price you pay. If something at the rough opening changes the scope, we tell you before touching it and get a written change order signed. Call (817) 686-2228 to schedule your free estimate.

We Also Serve Cities Near Thousand Oaks

Meridian Windows & Doors serves Thousand Oaks and the surrounding Conejo Valley, including Westlake Village, Oak Park, Agoura Hills, and Simi Valley. If your home sits just over the city line, call (817) 686-2228 and we will confirm scheduling for your neighborhood.

Serving Thousand Oaks, CA - Our Local Coverage Area

We’re based in the Thousand Oaks area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.

FAQs About Window Replacement in Thousand Oaks

Why Thousand Oaks Chooses Meridian Windows & Doors

We set the standard for window replacement in Thousand Oaks.

Factory-Direct Pricing

Authorized partner pricing with no distributor markup - premium aluminum systems at wholesale-anchored rates.

Engineered to Order

Any shape, size, or specification, fabricated to your exact opening with one-on-one engineering support.

Certified Installation

Set level, plumb, and square to AAMA standards in Thousand Oaks - warranty-safe, every time.

How It Works in Thousand Oaks

Getting your window replacement handled is simple and fast.

1

Call or Request a Free Estimate

Tell us about your window replacement needs and we provide an upfront, transparent quote - no obligation, no hidden fees.

2

Licensed Technician Dispatched

A background-checked, certified technician arrives in Thousand Oaks - typically within 30-60 minutes, with parts stocked on the truck.

3

Problem Solved, Guaranteed

We complete the job to your full satisfaction, backed by our warranty and 100% satisfaction guarantee.

What Thousand Oaks Customers Say

Trusted by homeowners across Thousand Oaks and surrounding areas.

★★★★★

"Straight talk, on time, and clean. Four windows done by early afternoon and the old frames were hauled away."

Ed S. · Verified customer
★★★★★

"Crew trimmed the interior neatly and caulked the outside. Looks professional."

Julia N. · Verified customer
★★★★★

"Noise from the street dropped noticeably with the laminated glass."

Harvey D. · Verified customer

Current Offers

Bring these savings to your next appointment.

Free On-Site Estimate & Written Quote

No obligation. We measure, price the job in writing, and the quote is yours to keep.

Expires Mar 31, 2027
Always

Written Price Before Any Work Starts

Expires Mar 31, 2027
Included

Written Guarantee on Every Repair

Expires Mar 31, 2027
Free

Free Second Visit if the Repair Fails

Expires Mar 31, 2027

Ready for Window Replacement in Thousand Oaks?

Call now for a free estimate - or request one below. Licensed, insured, and here with fast after-hours help in Thousand Oaks.

(817) 686-2228

Request a Free Estimate in Thousand Oaks

Tell us about your window replacement needs - we'll respond within the hour.

When you submit this form, you agree to the terms of our Privacy Policy and consent to being contacted via phone, email, or SMS about your request, including by the independent professionals who may fulfill it.

Prefer to text? Text Now
Areas We Serve
Call Now - 24/7 Dispatch