Window & Door Replacement in Mission Viejo, CA
★★★★★ 5.0 on Google · 22 reviewsOrange County Window Replacement replaces windows, entry doors and patio doors in Mission Viejo, including Lake Mission Viejo, Pacific Hills, Casta del Sol and Aegean Hills. Replacement windows typically cost $700–$2,200 per window installed, and most Mission Viejo homes are finished in 1–2 days. We're based right here in Mission Viejo.
- Free in-home measure & written quote
- Title 24 energy-code compliant windows & doors
- Retrofit & full-frame installation
- Open Mon–Sat 9:00 AM – 5:00 PM
Windows & Doors in Mission Viejo Homes
Typical homes in Mission Viejo: master-planned neighborhoods built mostly from the late 1960s through the 1980s.
Mission Viejo is our home base. Many homes here still have the original aluminum sliders and slider patio doors installed by the builders in the 1970s and '80s, and lots of neighborhoods have HOA guidelines for frame colors and grid patterns that we work within every week.
Summer afternoons in Mission Viejo regularly reach the 90s, so a Low-E glass package with a low solar heat gain coefficient (SHGC) makes the biggest difference in comfort and air-conditioning costs.
Many Mission Viejo neighborhoods have HOA or architectural review guidelines for frame colors, grid patterns and door styles — we provide product specs and drawings for your approval application.
Homes near the I-5 and busy arterials like Marguerite and Crown Valley Parkways often add laminated acoustic glass on the noisy side of the house.

Mission Viejo at a glance
- Region
- South Orange County
- ZIP codes
- 92691, 92692
- Neighborhoods
- Lake Mission Viejo, Pacific Hills, Casta del Sol, Aegean Hills
- Climate
- Inland — hot summers
- Our office
- 27766 Santa Margarita Pkwy, Mission Viejo, CA 92691
Our Services in Mission Viejo
Window Replacement
Replace old, drafty or failing windows with new energy-efficient units — retrofit or full-frame.
Learn more →Window Installation & Styles
New window styles for remodels, additions and upgrades — sliders, casements, picture, bay and more.
Learn more →Energy-Efficient Windows
Dual-pane and triple-pane Low-E windows that cut heat gain, glare and cooling bills.
Learn more →Soundproof Windows
Laminated acoustic glass windows that reduce traffic, freeway and aircraft noise.
Learn more →Door Replacement
Front entry, fiberglass, steel and French doors installed with new frames, hardware and weatherstripping.
Learn more →Patio Doors
Sliding glass, French, multi-slide and bifold patio doors for indoor-outdoor living.
Learn more →Reviews from Orange County Homeowners
★★★★★ 5.0 out of 5 from 22 Google reviews
“What a difference the replacement windows from Orange County Window Replacement have made! The front of the house looks so much better, and the rooms inside feel bright and welcoming. The frames and trim look great together.”
“Workers were very respectful and well priced. Everyone treated my property well.”
“Very spectacular and quick work. Got the job done. Respectful.”
Windows & Doors We Install in Mission Viejo
Window Replacement
Window Installation & Styles
- Sliding Windows
- Single-Hung Windows
- Double-Hung Windows
- Casement Windows
- Awning Windows
- Picture Windows
- Bay & Bow Windows
- Garden Windows
Energy-Efficient Windows
Soundproof Windows
Door Replacement
Patio Doors
Window & Door Replacement Cost in Mission Viejo
| Project | Typical installed cost |
|---|---|
| Vinyl replacement window | $700–$1,500 |
| Fiberglass replacement window | $1,100–$2,200 |
| Whole house (12–20 windows) | $12,000–$35,000 |
| Sliding glass patio door | $2,500–$6,000 |
| Front entry door | $1,800–$7,500 |
Last updated November 2026 · Prices are typical installed ranges, not quotes.
How Our Window & Door Replacement Works
- 1
Free in-home estimate
We measure every opening, look at the frames and walls, and walk you through styles, materials and glass options. No pressure, written quote.
- 2
Custom order
Your windows and doors are built to the exact measurements — usually 3–6 weeks.
- 3
Professional installation
Our crew protects your floors and furniture, removes the old units, installs and seals the new ones, and hauls away the debris.
- 4
Final walkthrough
We test every window and door with you, explain care and warranty, and make sure you're happy before we leave.
Mission Viejo Window Replacement FAQ
How much does window replacement cost in Mission Viejo?
Replacement windows in Mission Viejo typically cost $700–$2,200 per window installed. A whole-house project with 12–20 windows usually runs $12,000–$35,000 depending on frame material, sizes and styles.
Do you serve all of Mission Viejo?
Yes. We serve all of Mission Viejo (ZIP codes 92691 and 92692), including Lake Mission Viejo, Pacific Hills, Casta del Sol and Aegean Hills. We're based right here in Mission Viejo.
Can you help with HOA approval in Mission Viejo?
Yes. Many Mission Viejo communities require architectural approval for new windows and doors. We supply product specs, color samples and drawings for your application.
How long does window replacement take in Mission Viejo?
Most homes are completed in one to two days. Custom windows and doors are typically manufactured in 3–6 weeks after we measure.
Nearby Areas We Serve
Get new windows or doors in Mission Viejo
Free in-home estimates across Orange County · Mon–Sat 9:00 AM – 5:00 PM