Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Sliding glass doors
Impact garage doorsPGTCGI
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AfterFast, Reliable Impact Windows & Doors Across San Marcos
Impact windows and doors in San Marcos run between $1,400 and $3,200 per opening installed, with full-home replacements on 1988-2005 tract homes typically landing between $18,000 and $45,000 depending on opening count and whether Chapter 7A fire-rated glazing is required. Most jobs take two to four days once materials arrive, and permit-ready plans are part of every quote. If you live in Twin Oaks Valley, San Elijo Hills, or off Rancho Santa Fe Road, you already know the afternoon heat and Santa Ana wind pressure this valley throws at west-facing glass. Call (888) 635-0804 and we’ll measure, quote, and register both warranty layers in writing before the truck leaves.
Why TruePane Windows & Doors Is San Marcos’s Preferred Impact Windows & Doors Company
TruePane was founded in 2008 by second-generation glazier Dale Kessler. The rule on his whiteboard has not changed in sixteen years: if the pane is not true, the job is not done. We’ve carried that standard into hundreds of homes across San Marcos, from the 1988-era stucco tracts off Rancho Santa Fe to the newer planned communities around San Elijo Hills and Discovery Hills. San Marcos homeowners call us because our crews have pulled enough builder-grade sliders out of these walls to know what is behind them before the jamb comes off.
We run background-checked, uniformed technicians on every job, and we measure every opening twice before ordering. Quotes lay manufacturer lines side by side on paper so you see exactly what you are buying. No surprise line items, no second appointment left hanging. A live person answers the phone 24 hours a day, 7 days a week. That matters when you’re in the middle of a Chapter 7A inspection question and need a straight answer, not a voicemail tree.
We’ve earned a strong local reputation in San Marcos, and we work like a company that plans to be here in thirty years. We sponsor county fairs and church roof funds because this is home. Our standing offer: a free written repair estimate, a maintenance check, and a permanent 5% discount for seniors and veterans. Every job is covered by our Done Right Promise and The Keystone Standard, both manufacturer warranty layers registered in writing with durations stated.
Our Impact Windows & Doors Services in San Marcos
Hurricane Impact Windows
Full-frame impact window replacement in San Marcos typically runs $1,400 to $2,800 per opening, installed. If your home sits in a Chapter 7A Very High Fire Hazard Severity Zone, the code does not care whether you are worried about hurricanes, it requires multi-pane tempered or fire-rated glazing on permitted replacements regardless. We handle that paperwork and spec the right glazing the first time so you do not fail inspection. We install PGT, CGI, and ES Windows lines, among others, and we quote them side by side.
Impact Sliding Glass Doors
Those 6/0 builder-grade sliders installed across San Marcos subdivisions between 1988 and 2005 are hitting end-of-life together. Impact-rated sliding glass doors in San Marcos generally run $2,200 to $4,500 per door installed depending on size, frame material, and whether the opening needs reframing. We find improper original flashing behind a lot of these units, especially on second-story stucco walls. We replace the sliding door and fix the flashing so water stays outside where it belongs.
Impact Entry & French Doors
Impact-rated entry doors run $1,800 to $3,600 per opening in San Marcos, with French door pairs and sidelight configurations at the higher end. Homeowners around Discovery Hills and San Elijo Hills often ask whether HOA architectural review slows the process down. We pull the HOA package, submit the finish and style details, and keep the project moving. A door that binds in July is a door that was not set true. We set them true.
Impact Garage Doors
Impact-rated garage doors in San Marcos run $3,500 to $7,500 installed for a standard two-car opening, with custom sizes and reinforced tracks adding to that. In hillside and canyon-adjacent neighborhoods like parts of the Twin Oaks Valley corridor, wind mitigation and Chapter 7A compliance are not optional add-ons. If you are selling the home or renewing insurance, a wind-mitigated impact garage door is one of the first things the inspector notes.
Hurricane Shutters & Protection
Roll-down hurricane shutters run $25 to $45 per square foot installed in San Marcos, depending on motorization and mounting surface. Accordion shutters are typically less. Shutters can be a practical option when full window replacement is not in the budget this year. We also handle wind mitigation reports and code compliance documentation so your San Marcos property is covered on paper, not just in practice.
Wind Mitigation & Code Compliance
This is the piece that catches San Marcos homeowners mid-project. If your home is in a Very High Fire Hazard Severity Zone, Chapter 7A of the California Building Code requires fire-rated glazing on any permitted window or door replacement. We’ve seen too many projects get red-tagged because a contractor or homeowner ordered standard annealed impact glass and the inspector caught it. We review the property address against current hazard maps before we order a single unit.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in San Marcos
We are an authorized installer for more than a dozen manufacturer lines, including PGT, CGI, and ES Windows among others. We maintain local parts inventory and direct manufacturer relationships, which keeps turnaround tight for San Marcos customers. We register both warranty layers in writing and state the durations on your paperwork before we leave the driveway. No fine print that covers neither.
Common Impact Windows & Doors Problems We See in San Marcos Homes
- Fogged dual-pane glass across entire subdivisions. San Marcos’s inland valley temperature swings, 100°F afternoons dropping into the 50s at night in spring and fall, cycle vinyl frames through constant expansion and contraction. Seals fail on 20 to 30 year old builder-grade units, argon escapes, and fog appears. We typically see whole blocks of 1990s tract homes showing the same failure within a few years of each other.
- Hidden water intrusion behind improperly flashed window openings. The original flashing on many second-story stucco walls was never sealed at the head, just stuccoed over. You don’t know until we pull the old unit. Then the drywall and stucco repair becomes part of the job.
- Non-compliant glazing ordered before Chapter 7A review. If you’re in a VHFHSZ zone like parts of Twin Oaks Valley, you need multi-pane tempered or fire-rated glazing on permitted replacements. Standard impact-rated units without that rating will fail inspection. We see this repeatedly with homeowners who tried to save money by ordering glass first and asking questions later.
- Santa Ana wind pressure causing leaks and whistling at west-facing rough openings. Sustained high positive pressure against west- and south-facing elevations finds every gap in the rough opening. Proper sealing and head flashing are not optional in San Marcos if you do not want to hear the wind inside your living room.
Pricing for Impact Windows & Doors in San Marcos, TX
A typical impact window replacement in San Marcos runs $1,400 to $2,800 per opening. Impact sliding glass doors run $2,200 to $4,500. Impact entry doors run $1,800 to $3,600, and impact garage doors run $3,500 to $7,500. Full-home replacements on the 2,200 to 3,400 square foot stucco tracts built between 1988 and 2005 typically run $18,000 to $45,000. What changes the number: opening count, second-story access, whether Chapter 7A fire-rated glazing applies, HOA finish requirements, and the condition of the existing flashing and framing. We give you a written line-item quote before any work starts. Call (888) 635-0804 to schedule your free estimate.
We Also Serve Cities Near San Marcos
Our Impact Windows & Doors team also serves Driftwood, Buda, Manchaca, and Kyle. Same crews, same The Keystone Standard, same Done Right Promise. If you’re anywhere in the San Marcos area, call (888) 635-0804 and we’ll get you on the schedule.
Serving San Marcos, TX - Our Local Coverage Area
We’re based in the San Marcos 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 - Impact Windows & Doors in San Marcos
Yes. If the San Marcos property is not mapped in a Very High Fire Hazard Severity Zone, Chapter 7A does not apply and standard impact-rated glazing is code acceptable. But check before you order. We review your street against current hazard maps as part of every quote, because zone boundaries have shifted over the years and what was fine five years ago may not be fine now. Call (888) 635-0804 and we’ll confirm your address before you spend a dollar on glass.
The 1988 to 2005 tract buildout used builder-grade vinyl dual-pane windows with a typical seal life of 20 to 30 years, and San Marcos’s valley thermal cycling burns through that lifespan faster than coastal microclimates do. Summer afternoons over 100°F and overnight drops into the 50s strain dual-pane seals daily, and Santa Ana wind pressure adds stress on west-facing elevations. When the seal fails, argon fills escape and fog forms between the panes. Entire subdivisions hit that failure window within a few years of each other. We can replace one window or the whole house on a phased schedule. Call for a free estimate.
In most cases yes. Many newer San Marcos planned communities, including Discovery Hills and San Elijo Hills, require architectural review for exterior door changes, even on a like-for-like replacement. The finish, the frame color, the glass tint, all of it. We pull the HOA submission package, fill out the forms with the correct product specifications, and submit on your behalf. The work does not start until the approval is in writing. Call (888) 635-0804 and we’ll start the review process with your community’s board.
For most San Marcos homeowners, the value of impact-rated windows has less to do with hurricanes and more to do with wildfire ember resistance, Santa Ana wind performance, noise reduction, and code compliance in VHFHSZ zones. The insulated glass performs year-round against a valley climate that punishes builder-grade vinyl. We also have customers replacing windows specifically to satisfy insurance wind mitigation requirements. The math usually makes more sense when you factor all four together rather than treating impact glass as hurricane-only insurance.
You get one opening that is code-compliant, sealed, and impact-rated, while the surrounding builder-grade units continue aging. That is a fine approach if you are addressing a single failed unit now and planning the rest on a phased schedule. The one thing to watch: if you’re in a Chapter 7A zone, even that single replacement must carry fire-rated glazing. We keep records of what we installed and where, so when you’re ready for the next phase we match the line and the finish. Call (888) 635-0804 for a free estimate on a single opening or the full house.
Your San Marcos Impact Windows & Doors Estimate
Before you replace windows or doors in San Marcos, get the address mapped against fire hazard zones, the HOA package reviewed, and a written line-item quote in your hand. We measure twice, quote manufacturer lines side by side, and register both warranty layers before the truck leaves the driveway. Call (888) 635-0804 to schedule your free estimate with our Impact Windows & Doors in San Marcos team. We’ll be there when we say.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving San Marcos since the company’s founding in 2008.