Window & Door Replacement in Orange County, CA
★★★★★ 5.0 on Google · 22 reviewsOrange County Window Replacement replaces windows, entry doors and patio doors for homeowners across Orange County from our Mission Viejo office. Replacement windows typically cost $700–$2,200 per window installed, most homes are finished in 1–2 days, and every estimate is free.
- 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
Window & Door Services
Energy-efficient, code-compliant windows and doors — measured, built to order and installed by our Orange County crew.
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 →What Our Customers Say
★★★★★ 5.0 out of 5 from 22 Google reviews
“Replacing the windows made a bigger difference than I expected! The new ones have given the house a much more updated look, and I really like how the rooms feel with the brighter glass and fresh frames. The team was respectful and easy to work with throughout the window installation.”
“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.”
“Great service!! John was amazing.”
“Great job, great service and professional.”
Window Replacement Cost in Orange County
Typical installed prices for 2026. Your exact price depends on sizes, styles, glass and installation method — we'll give you a written quote after a free measure.
| 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 |
| Multi-slide / bifold door | $8,000–$25,000+ |
Why Orange County Homeowners Choose Us
- Local to South Orange County — based in Mission Viejo
- Retrofit installs that avoid stucco and drywall damage
- Every window meets California Title 24 energy code
- Help with HOA and architectural review approvals
- Coastal-grade frames and hardware for homes near the ocean
- Clear written quotes with no high-pressure sales
Built for Orange County's Climate
Coastal salt air
From Seal Beach to San Clemente, salt air corrodes aluminum frames and hardware. We recommend vinyl or fiberglass frames with stainless hardware near the water.
Inland heat
Inland cities from Yorba Linda to Rancho Santa Margarita regularly hit the 90s. Low-E glass with a low solar heat gain rating keeps rooms cooler and cuts AC costs.
Freeway & airport noise
Homes near the 5, 405, 55, 91 and John Wayne Airport get quieter with laminated acoustic glass.
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.
Cost & Buying Guides
How Much Does Window Replacement Cost in Orange County? (2026)
Typical 2026 installed prices for replacement windows in Orange County, CA by material, style and home size, plus what drives the price up or down.
Read guide →Retrofit vs. Full-Frame Window Replacement: Which Is Right for Your Orange County Home?
The differences between retrofit (insert) and full-frame window replacement for Orange County stucco homes — cost, appearance, timeline and when each makes sense.
Read guide →Vinyl vs. Fiberglass Windows for Orange County Homes
How vinyl and fiberglass replacement windows compare on cost, durability, energy efficiency and looks in Orange County's sun and coastal air.
Read guide →California Title 24 Window Requirements for Orange County Homeowners
What California's Title 24 energy code means for replacement windows and patio doors in Orange County: U-factor, SHGC, the 75-square-foot rule and permits.
Read guide →Sliding Glass Door Replacement Cost in Orange County (2026)
2026 installed prices for sliding glass, French, multi-slide and bifold patio doors in Orange County, plus signs your slider needs replacing.
Read guide →Areas We Serve in Orange County
Based at 27766 Santa Margarita Pkwy, Mission Viejo, CA 92691 and serving every city in Orange County.
- Mission Viejo
- Lake Forest
- Laguna Hills
- Laguna Niguel
- Rancho Santa Margarita
- Ladera Ranch
- Aliso Viejo
- San Juan Capistrano
- Irvine
- Dana Point
- San Clemente
- Laguna Beach
- Laguna Woods
- Coto de Caza
- Las Flores
- Trabuco Canyon
- Newport Beach
- Costa Mesa
- Huntington Beach
- Fountain Valley
- Seal Beach
- Los Alamitos
- Santa Ana
- Tustin
- Orange
- Villa Park
- Garden Grove
- Westminster
- Stanton
- Anaheim
- Fullerton
- Brea
- Placentia
- Yorba Linda
- La Habra
- Buena Park
- Cypress
- La Palma
Frequently Asked Questions
How much does window replacement cost in Orange County?
Most replacement windows cost $700–$2,200 per window installed in Orange County. A typical whole-house project with 12–20 windows runs about $12,000–$35,000 depending on materials, sizes and styles.
What areas do you serve?
We're based in Mission Viejo and serve all 34 Orange County cities plus Ladera Ranch, Coto de Caza, Las Flores and Trabuco Canyon.
How long does installation take?
Most homes are completed in one to two days. Custom windows and doors usually take 3–6 weeks to manufacture after we measure.
Do your windows meet California's Title 24 energy code?
Yes. Every window and glass patio door we install is dual-pane Low-E glass that meets the current California energy code.
Do you offer free estimates?
Yes — free in-home estimates with a written quote. Call (949) 867-3079 or request one online.
Do you help with HOA approvals?
Yes. We provide product specifications, colors and drawings for HOA and architectural review applications, which are common across South Orange County.
Ready for new windows or doors?
Free in-home estimates across Orange County · Mon–Sat 9:00 AM – 5:00 PM