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CGIFree in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Get your free estimateFast, Reliable Window Replacement Across San Fernando
Window replacement in San Fernando usually costs between $650 and $1,450 per opening for a standard dual-pane retrofit, while full-frame work on older bungalows runs $1,100 to $2,400 per window once custom shimming and stucco repair are factored in. Most jobs finish in one to three days once the glass arrives. Call (661) 430-5327 for a written quote before anything gets ordered.
We work throughout San Fernando, from the ranch homes near San Fernando Road down through the neighborhoods around Brand Park and the bungalows west of Maclay Avenue. Keith Yamada leads our crew, and we’re here because San Fernando homes have a particular set of window problems: corroded 1950s aluminum sliders, settled stucco openings, and south-facing glass that takes a beating from Valley sun. We know what that looks like before we knock.
Why Lightwell Windows Santa Clarita Is San Fernando’s Preferred Window Replacement Company
San Fernando homeowners call us because the price we write is the price they pay. We work to the Cedarwell Care Promise, which has been our operating rule since 2010: shoe covers and drop cloths on every visit, a photo of the cleanup before the crew leaves, and a written price before any work starts. No invoice surprises at the end of the day.
Keith and the technicians on our Window Replacement team are background-checked and uniformed, so you know who is at your door before they knock. We follow the C.A.R.E. values on every job: Clean up like it is our own home, Ask before we move or touch anything, Respect your family’s time and quiet hours, and Explain the price before the work begins. That matters when you’ve got kids doing homework in the next room or a dog who does not love strangers.
On a recent project on a 1955 ranch near San Fernando Road, the original aluminum sliders had oxidized so badly the sashes were frozen in place. We installed PGT impact-rated casements with laminated glass interlayers and custom shims to square the settled stucco openings, finishing with a low-E insulated glass unit on the south elevation to cut the afternoon heat gain. That is the kind of work San Fernando homes need, and it is the kind we do.
Styles & brands we work with










Window Replacement Company in San Fernando
A window replacement company in San Fernando has to understand what this city’s housing stock actually looks like: single-family detached homes built mostly between 1940 and 1970, with small stucco bungalows and ranch-style houses on nearly every block. Original wood-frame windows are common, and decades of Valley heat have settled many of those frames out of square. We do not walk in assuming a standard window will fit, because in San Fernando it often will not.
Custom Shimming for Settled Openings
San Fernando bungalows built in the 1940s and 1950s rarely have perfectly square window openings anymore. Expansion and contraction through 100°F summers and wet winters shifts the framing. We shim every replacement jamb to the actual opening we find, not the opening the blueprint says should be there. On high-end work, that means milling custom extension jambs on site or ordering them to spec, then sealing the gap so the new window meets its design pressure rating.
Written Price Before Ordering
If you are replacing windows on a custom job, the lead time on millwork and specialty glass drives the schedule, not our labor. That is exactly why we lock the price in writing before the long-lead items get ordered. You should never be handed a bigger number mid-project because glass went up between the estimate and fabrication. Our written price is a fixed price, tied to the scope we agreed on.
Window Glass Replacement in San Fernando
Window glass replacement in San Fernando often starts as a fogged insulated unit or a cracked single pane on a south-facing elevation. The dry heat and constant UV exposure here break down edge seals faster than in coastal climates, which is why we see fogging between panes within a few San Fernando summers. Sometimes the glass can be swapped; sometimes the frame is too far gone to justify saving it.
When a Glass Swap Works
If the frame is square and the sash still operates, replacing just the insulated glass unit is a reasonable fix. We order the low-E glass to match the existing tint and load, then set it with the same sealants and glazing tape we would use on a full replacement. Expect to pay between $220 and $480 per pane for this kind of repair in San Fernando’s market, depending on size and glass package.
When the Frame Tells You More Is Needed
South of San Fernando Road, many homes still have original 1950s aluminum sliders with single-strength glass. Those aluminum tracks oxidize in the dry heat and airborne foothill dust, and we regularly find sashes seized so badly the window will not open at all. That is not a glass problem; it is a frame problem. A glass swap would be money spent on a window that still will not function. Those jobs call for full replacement, and a dual-pane retrofit that meets Title 24 energy standards.
Trusted Brands We Service in San Fernando
We carry eight manufacturer brands, and for San Fernando work we regularly recommend CGI, CWS, and ES Windows. The climate here demands glass that can handle serious heat, so we lean on CGI impact-rated lines for homes facing afternoon sun and ES Windows for clean architectural lines on mid-century ranches. Because we stock parts and coordinate directly with these manufacturers, San Fernando customers get faster turnaround on service calls than if we had to source from a third party. Our Window Replacement in San Fernando work always matches the home, not our preferred vendor.
See the difference
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After
Before
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AfterCommon Window Replacement Problems We See in San Fernando Homes
- Oxidized aluminum sliders south of San Fernando Road. Original 1950s aluminum frame tracks seize shut from dry heat and airborne dust from the nearby foothills. Full replacement is usually the only fix.
- Fogged insulated glass on west-facing elevations. Constant afternoon UV exposure breaks down edge seals early, leaving condensation between panes that cannot be cleaned off. This is one of the most common service calls in town.
- Out-of-square stucco openings on 1940s bungalows. Decades of expansion and contraction settle the framing, so a standard-size window will not seat correctly. Replacement jambs need custom shimming or the sashes bind at the meeting rail.
- Stucco cracks radiating from window corners. Hot, dry summers and wet winters stress the stucco around original wood frames. We repair and seal those openings during replacement so the new window is set in a sound substrate.
Pricing for Window Replacement in San Fernando, CA
Standard dual-pane retrofits in San Fernando run $650 to $1,450 per opening. Full-frame replacement on older bungalows with custom shimming typically falls between $1,100 and $2,400 per window. A simple glass-only replacement lands around $220 to $480 per pane. What moves the number: whether the opening is square, whether stucco repair is needed around the frame, the glass package, and whether we are matching custom millwork. Call (661) 430-5327 for a free estimate. We write the price down before anything gets ordered.
We Also Serve Cities Near San Fernando
San Fernando homeowners and their neighbors in Sylmar, Mission Hills, Granada Hills, and Panorama City call us for the same reason: a written price before the work starts and a crew that treats the house like a home. If you’re in any of those communities, the number is the same: (661) 430-5327.
Serving San Fernando, CA - Our Local Coverage Area
We’re based in the San Fernando 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 San Fernando
No, a glass swap is not enough when the aluminum tracks have oxidized. South of San Fernando Road, we regularly find sashes seized so badly they will not move at all. Replacing only the glass leaves you with a window that still will not open. Full replacement with dual-pane glass also brings the home closer to Title 24 energy standards. Call (661) 430-5327 and we will tell you honestly what your specific windows need.
Casements handle San Fernando heat better because they compress against the frame when closed, creating a tighter air seal than double-hungs. Double-hungs are fine for many homes, but on south- and west-facing elevations we lean toward casements with low-E insulated glass to cut afternoon heat gain. The framing style of your house matters too; we will walk you through the trade-off before you commit.
In many cases, yes, but the discount depends on your carrier and policy. Impact-rated windows from manufacturers like PGT and CGI are built to withstand wind-borne debris, and insurers often recognize that with reduced premiums. We can provide the product documentation your agent will ask for. Talk to your insurer first, then call (661) 430-5327 for a written quote on the windows themselves.
Because the glass and millwork are being fabricated to your opening, not pulled off a shelf. Custom extension jambs, specialty finishes, and architectural glass all have fabrication queues measured in weeks. Labor on site is measured in days. We order the long-lead items immediately after you approve the written price, and we keep you updated on the fabrication status so you are never wondering where the job stands.
If the existing windows bind when you open them, if there are visible gaps between the window frame and the stucco, or if the sashes do not meet evenly at the rail, the opening has likely settled out of square. Our technicians check every opening with a level during the estimate. We will tell you which windows need shimming and include that in the written price before work begins. Call (661) 430-5327 to schedule your free estimate.
Written by Keith Yamada, Owner at Lightwell Windows Santa Clarita, serving San Fernando and the surrounding Valley communities.
Six Reasons Homeowners Choose Lightwell Windows Santa Clarita
Laminated glass and reinforced frames hold up to wind-driven rain, hail and flying debris, so your openings stay sealed when the weather turns.
Low-E insulated impact glass from our manufacturer lines commonly cuts monthly cooling bills 20-30%.
Laminated impact glass shuts out up to 40% of outside noise - traffic, neighbors, weather.
Monitoring services run $30-90 a month. Laminated impact glass resists forced entry around the clock, with no subscription.
Tighter seals and insulated glass even out hot and cold rooms and stop the drafts at the frame.
A full impact package upgrades curb appeal, buyer confidence and appraised value in one project.