FAQ
Window & door questions, answered
Straight answers about costs, sliding windows, patio doors, replacement vs. new construction, and our service area from Cambria Windows & Doors in Whittier, CA. Updated September 2026.
How much do new windows cost in Los Angeles County?
The cost of new windows from Cambria Windows & Doors depends on the number of windows, their sizes and styles, the glass and frame options you choose, and whether it's a retrofit replacement or a full-frame or new-construction install. Every project gets a free quote after we look at your openings, so call (562) 669-7313 or send the quote form for a price on your home.
What affects the price of a sliding patio door?
As a general rule, the biggest price drivers for a sliding door are its width and height, the number of panels, the glass package, the frame and hardware, and how much work the opening needs. Replacing a door in an existing opening usually costs less than creating or enlarging one.
Do you offer free window and door quotes?
Yes. Cambria Windows & Doors gives free, no-obligation quotes for homeowners and builders. Call (562) 669-7313 or send the online form and we'll set up a time to measure.
Is it cheaper to buy windows directly from a manufacturer?
Buying from a manufacturer that also installs, like Cambria Windows & Doors, removes the retailer or distributor between you and the product, and it gives you one team responsible for sizing, quality and installation. Your final price still depends on your project.
What are sliding windows?
Sliding windows (also called horizontal sliders) have one or more sashes that glide side to side on a track instead of cranking or lifting. They're a popular choice in Southern California homes, and they're the product Cambria Windows & Doors is known for.
Are sliding windows a good choice?
Sliding windows are a strong fit for wide openings: they're simple to operate, have few moving parts, don't swing into walkways or yards, and give you a lot of glass for the wall space. Casement or double-hung windows can make more sense in some spots, and we'll talk through it during your quote.
How do I know if my windows need to be replaced?
Common signs are windows that stick or won't lock, drafts or rattling, fog or condensation between the panes, rotted or warped frames, single-pane glass, and rooms that get much hotter or louder than the rest of the house.
What is the difference between retrofit and new-construction windows?
Retrofit (replacement) windows are installed into the existing window frame opening without tearing out the stucco or siding around it, which is faster and less disruptive. New-construction (full-frame or nail-fin) windows attach to the wall framing and are used in new builds, additions and major remodels where the wall is open.
Do replacement windows have to meet California energy rules?
In general, yes. California's Title 24 energy code sets efficiency requirements that apply to new and replacement windows, and many cities require a permit for window replacement. We can talk through what applies to your project. This is general information, not legal or code advice.
Can you replace a sliding glass door in the same opening?
Yes. Cambria Windows & Doors replaces sliding patio doors in existing openings. We measure, remove the old door, install the new one, then seal and adjust it so it glides and locks correctly.
Why is my sliding door hard to open?
Common causes are worn or dirty rollers, a bent or damaged track, a frame that has shifted out of square, or an old door that has simply worn out. When rollers and tracks can't fix it, replacing the door is usually the better long-term answer.
Can you make a window opening into a sliding door?
Often, yes. Turning a window into a door means cutting the wall down and usually changing the header and framing, which may need a permit and plans. Tell us about the project and Cambria Windows & Doors will tell you what's involved.
How does the quote and install process work?
Call (562) 669-7313 or send the quote form, and Cambria Windows & Doors will measure your openings and talk through styles and options. You get a clear quote, your windows and doors are made or ordered to size, and our crew installs, seals and adjusts everything before cleaning up.
How long does window installation take?
As a general range, a crew can replace several windows in a single day, and a whole-home replacement often takes one to a few days, depending on the number of openings and the type of install. Lead time for made-to-size windows is separate, and we'll give you a date with your quote.
Do I need to be home during installation?
Someone should be home at the start and at the final walkthrough so we can confirm the plan and show you how everything operates. We'll need clear access to each window and door being replaced.
Do you haul away the old windows and doors?
Yes. Removing the old units and cleaning up the work area is part of a Cambria Windows & Doors installation.
Do you supply windows and doors for builders and contractors?
Yes. Cambria Windows & Doors works with builders, general contractors and developers on custom homes, ADUs, additions and multi-unit projects, with manufacturing and installation available.
Do you do windows for ADUs?
Yes. ADUs are a good fit for Cambria Windows & Doors: we can make windows and sliding doors to your plan sizes and install them on your schedule.
Where is Cambria Windows & Doors located?
Cambria Windows & Doors is based at 12301 Philadelphia St in Whittier, CA 90601, and serves homeowners and builders across Los Angeles, Orange County, San Fernando Valley and San Diego, and the surrounding Southern California cities.
Do you install windows in Orange County and San Diego?
Yes. Along with Whittier and Los Angeles County, Cambria Windows & Doors serves Orange County, the San Fernando Valley and San Diego. Not sure if you're in range? Call (562) 669-7313.
Is Cambria Windows & Doors licensed and insured?
Yes. Cambria Windows & Doors is licensed and insured, California contractor license #859361.
What are your business hours?
Cambria Windows & Doors is open Monday through Friday from 8am to 5pm and Saturday from 8am to 2pm.
Free, no-obligation quote
Still have a question? Ask us.
- Sliding windows, patio doors & replacements
- Made and installed by one team
- Licensed & insured, CA Lic. #859361
- Homeowners and builders welcome
Rather talk? (562) 669-7313