WINDOWS & DOORS · WOODLAND HILLS, CA
Window Replacement Contractor in Los Angeles
Energy efficient windows, sliding glass door replacement and custom entry doors installed by Rafa Home Builders, with proper window framing, flashing and trim so every opening looks finished and seals tight.
- CSLB License #1150519Class B General Building
- Licensed, Bonded & InsuredLiability + workers’ comp
- Family-Owned & Owner-LedJustin & Elon on every job
- Written Workmanship WarrantyOn qualifying projects
- Financing AvailableThrough Enhancify
BETTER OPENINGS, BETTER HOME
Windows and Exterior Door Installation in Los Angeles
Old single-pane windows and drafty doors make a home harder to keep cool in the Valley summer and warm in winter, and they let in street noise. Replacing them is one of the most noticeable upgrades you can make, but the result depends on more than the product. The opening, the framing, the flashing and the trim all matter.
As a window replacement contractor in Woodland Hills, Rafa Home Builders measures every opening, recommends double pane windows with Low-E glass in the right style, and installs them with careful flashing, insulation and trim. For new or larger openings, we handle window framing and structural header modification with permits and inspections.
Doors get the same care, from custom entry doors that set the tone for the house to sliding and hinged patio doors that open the home to the yard. As a Los Angeles general contractor, we also handle the framing, stucco and trim work that comes with new openings, not just the glass.
- Energy efficient windows with Low-E glass
- Sliding glass door replacement and patio doors
- Custom entry doors with hardware and weather stripping
- Enlarged openings with engineered headers and permits
Quick Answers
Windows & Doors Quick Answers
Short answers to the questions homeowners ask us most. More detail follows below.
- Who installs the windows and doors? Rafa Home Builders, a licensed California general contractor (CSLB #1150519) in Woodland Hills, installs them and handles framing, trim and permits.
- What windows do you install? Double pane window installation with Low-E glass, in the frame material and style that suits your home and budget.
- Are energy efficient windows worth it in the Valley? Low-E double pane windows reduce heat gain and loss compared with single-pane glass and help with comfort and noise. Replacement windows must meet California’s Title 24 requirements, shown on the NFRC label.
- Do I need a permit to replace windows? In the City of Los Angeles, replacing windows with the same size, type and location can use an express e-Permit. Changing size or type, or adding openings, requires plan check. We handle either.
- Can you make a window larger or turn it into a door? Yes. That requires structural header modification, with engineering and permits as required, and we patch stucco and drywall afterward.
- What are the egress rules for bedroom windows? In Los Angeles, bedroom egress windows need a net opening of at least 5.7 sq ft, at least 24 inches high and 20 inches wide, with the sill no more than 44 inches above the floor.
- Where do you work? The San Fernando Valley, including Studio City, Burbank, Porter Ranch and Agoura Hills, plus Orange County.
- How do I get started? Request a free estimate online or call (714) 768-5719 to schedule a consultation.
WHAT WE HANDLE
Window Replacement, Exterior Door Installation and Energy-Efficient Upgrades
01
Window Replacement
Double pane, Low-E windows installed with proper flashing and trim.
02
Custom Entry Doors
Entry doors, hardware and weather stripping for security and curb appeal.
03
Sliding Glass Door Replacement
Smooth-gliding patio doors with secure locks and tight seals.
04
Window Framing & Headers
New or larger openings framed with engineered headers.
05
Weather Stripping & Insulation
Gaps sealed and openings insulated to stop drafts.
06
Interior & Exterior Trim
Casings, sills and stucco patched for a finished look.
PROJECT GALLERY
Window, Door and Exterior Projects







BUYING GUIDE
Choosing Energy Efficient Windows and Doors
What to look for so new windows and doors look right, seal tight and perform for years.
Double pane windows and Low-E glass
Double pane windows trap an insulating space between two panes of glass. A Low-E coating reflects heat while letting light through, which reduces heat gain in summer, heat loss in winter, glare and fading of floors and furniture.
Fenestration ratings and Title 24
In building terms, windows, doors and skylights are called fenestration. California’s Title 24 energy code sets performance requirements for new and replacement fenestration, and each product’s NFRC label shows its U-factor and solar heat gain. We confirm products meet current requirements before ordering.
Window framing and structural header modification
Making an opening larger, or turning a window into a door, means resizing the header that carries the load above it. That work needs engineering and plan check, followed by stucco and drywall patching so the new opening blends in.
Sliding glass door replacement
A good sliding door rolls smoothly, locks securely and seals at the threshold. We check the opening for square and level, integrate flashing with the weather barrier and set the threshold so water drains out, not in.
Custom entry doors
Your front door sets the tone for the house. We help you choose the material, size, glass and sidelights, then install the door with hardware, a proper threshold and weather stripping for security and comfort.
Weather stripping and thermal insulation
Even the best window leaks air if the gaps around it are not sealed. We insulate the space between the frame and the rough opening, flash the exterior and finish the interior trim so drafts and noise stay out.
Ready for Quieter, More Comfortable Rooms?
Book a free consultation. We will measure your windows and doors and walk you through the options.
How It Works
Our Window and Door Process, Step by Step
A clear path from measuring to the final walkthrough.
- 01
Free In-Home Consultation
We measure each opening, check frames and framing and talk about comfort, noise and style.
- 02
Product Selection & Scope
You choose windows and doors, and receive a written scope, schedule and price.
- 03
Permits & Ordering
We pull the right permit and order products to exact measurements.
- 04
Installation
Removal, any framing or header work, flashing, installation, insulation and trim.
- 05
Final Walkthrough
We check operation, seals and finish with you and review your warranty terms.
BEFORE YOU REPLACE
Window and Door Permits, Costs and Timelines
What to expect before installation day.
Permits
- City of Los Angeles: same size, type and location replacements can use an express e-Permit.
- Changing size or type, or adding openings, requires plan check, with structural calculations for larger openings.
- Burbank, Agoura Hills and Orange County cities have their own departments.
- Bedroom windows must meet egress rules.
What drives cost
- Number and size of openings
- Frame material and glass package
- Style changes, such as window to slider
- Framing, header and stucco repair
- Custom entry door choices
Your free estimate itemizes these choices. Financing is available.
What affects timeline
- Product lead times and custom orders
- Permit type and review
- Number of openings and any structural work
- Exterior patching and paint
You receive a written schedule before work begins.
Service Areas
Window and Door Installation in Studio City, Burbank, Porter Ranch and Beyond
From our office in Woodland Hills, we handle window replacement and exterior door installation in the San Fernando Valley, from Studio City and Burbank to Porter Ranch and Agoura Hills, and take on window and door projects across LA County and Orange County.
Window and door service areas include:
- Calabasas
- Hidden Hills
- Tarzana
- Encino
- West Hills
- Canoga Park
- Winnetka
- Reseda
- Chatsworth
- Northridge
- Woodland Hills
- Sherman Oaks
- Studio City
- Porter Ranch
- Granada Hills
- Agoura Hills
- Valley Village
- Bell Canyon
- Toluca Lake
- Burbank
Updating the outside of your home? Pair new windows with exterior painting or a new deck or patio, or call (714) 768-5719.
FAQ
Windows & Doors FAQs
How much does window replacement cost in Woodland Hills?
Cost depends on the number and size of openings, frame material, glass package, any style or size changes and the trim and stucco work involved. Rafa Home Builders provides a free, itemized estimate, and financing is available through Enhancify, subject to credit approval.
How long does window installation take?
It depends on product lead times, the permit type and how many openings change size or need structural work. Your written schedule is set before installation.
Do I need a permit to replace windows in Los Angeles?
In the City of Los Angeles, replacing windows with the same size, type and location can use an express e-Permit. Changes to size or type, or new openings, require plan check. Separate cities have their own rules, and we handle the permit either way.
Are double pane Low-E windows worth it?
For most Valley homes with older single-pane windows, yes. Low-E double pane windows reduce heat gain, heat loss, glare and noise compared with single-pane glass.
Can you replace a window with a sliding glass door?
Yes. It requires enlarging the opening, a new header sized by engineering and a permit with plan check. We then install the door and patch the exterior and interior.
What are the egress requirements for bedroom windows?
In Los Angeles, a bedroom egress window needs a net opening of at least 5.7 sq ft, at least 24 inches high and 20 inches wide, with the sill no more than 44 inches above the floor.
Is window and door installation covered by a warranty?
Qualifying projects come with a written workmanship warranty, with the terms spelled out in your project agreement. Products may also carry their own manufacturer warranties.
UPGRADE YOUR OPENINGS
Ready to Talk With a Window Replacement Contractor in Los Angeles?
Tell us which windows and doors you want to replace. We will schedule a free consultation, measure everything and walk you through your options.