Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Window Replacement Across Mendota
Window replacement in Mendota usually costs between $650 and $1,850 per opening, and the work matters here more than in most Valley towns. The fields that wrap around Mendota send fine cantaloupe and row-crop dust into every gap a window leaves open, so a failed seal is not a cosmetic issue. It is a dust problem, then a cooling bill problem, then a rot problem. If you live in the 93640 and your windows are original single-pane aluminum from the 1960s or 70s, they are working against you. Call us at (888) 635-0804. We serve Mendota from our Fresno, Central Valley office, and we answer the phone live, 24/7.
Why TruePane Windows & Doors Is Mendota’s Preferred Window Replacement Company
We have been doing this work since 2008, and Dale Kessler founded TruePane in 2008 on a rule that still names the company: if the pane is not true, the job is not done. Mendota homeowners call us because they want a crew that knows what an older wood-frame home off 7th Street hides inside its rough openings. Our technicians are background-checked and uniformed. They measure every opening twice, quote manufacturer lines side by side on paper, and register both warranty layers in writing before the truck leaves the driveway. That is The Keystone Standard.
Reviews from Mendota customers tend to mention the same thing: we show up when we say, we do not leave the second appointment hanging, and we stand behind the work. If something is not right within 90 days, the Done Right Promise means we make it right. No paperwork fights. No arguing. Just a square deal.
Our Window Replacement Services in Mendota
Full Frame Replacement
This is the service we recommend most often in Mendota, and for good reason. The original window openings in 1950s through 1980s wood-frame homes were framed to the minimum standard of their day. When tule fog condensation soaked those jambs every winter for forty-plus years, the wood did not hold up. Full frame replacement lets us pull the entire unit, inspect the rough opening, repair any rot, and set a properly flashed, properly shimmed new frame. It is the only way to stop wind-driven grit from Pacheco Pass from working its way back through the corners. A full frame replacement in Mendota typically runs $1,100 to $1,850 per window depending on size and opening condition.

Insert Window Replacement
If the existing frame is still square and the rough opening is dry, an insert replacement is often the right call. We set a new energy-efficient window unit directly into the old frame. In Mendota, the catch is that a frame that looks fine from the outside is often packed with harvest dust behind the trim, or soft at the sill where fog condensation pooled. Before we quote an insert, we examine the frame corners and sill for exactly that. Inserts in Mendota run $650 to $1,200 per window.

Storm Window Replacement
Some older Mendota homes still have exterior storm windows over their original single-pane units. Most of those storms are now loose in their tracks, missing weatherstripping, or rusted at the hardware. We replace storm windows or remove them entirely when the better long-term solution is a single high-performance replacement unit. If you are only replacing a few storm sashes, the cost is lower. If we are refitting the entire opening, it is best handled as part of a full frame or insert replacement.

Energy-Efficient Upgrade
This is the page’s most direct answer to the valley climate. Mendota summers routinely push past 108°F, and in winter the tule fog hangs on for weeks. Energy-efficient replacement windows here should carry low-E glass, argon fill, and a frame material rated for high heat and low humidity transitions. We install Milgard Tuscany and other vinyl lines with exactly that specification. In Mendota, an energy-efficient upgrade to a standard double-hung typically lands between $750 and $1,400 per opening.

What happens when you call
- 1
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 Mendota
TruePane is an authorized installer for more than a dozen manufacturer lines, including, PGT, CGI, and ES Windows. For Mendota homes specifically, we stock replacement parts and weatherstripping for CWS, ES Windows, and ECO Window Systems lines, which we see frequently on older single-family houses in the area. We quote manufacturer lines side by side on paper, so you can read the difference in frame thickness, glass coating, and warranty duration before you spend a dollar. Fast turnaround for Mendota orders means we can have most stock units scheduled within days, not weeks.
Common Window Replacement Problems We See in Mendota Homes
- Dust returning within days of cleaning. This is the tell. When fine agricultural dust reappears inside window tracks a few days after wiping them clean, the perimeter seal is gone. This is not a caulk fix. It is a full unit replacement signal, and we treat it that way.
- Fogged glass between panes. Insulated glass units lose their argon fill when edge seals bake out under 108°F heat. Once fog forms between the panes, the unit has failed. In Mendota, we see this on windows as new as eight to ten years.
- Rot at the sill from winter fog condensation. Single-pane aluminum frames sweat heavily when tule fog rolls in. That water runs down to the wood sill and soaks in. By the time a homeowner sees the dark stain, the rough opening under the window needs repair before any replacement goes in.
- Warped vinyl from sustained summer heat. Not all vinyl is the same. Cheap vinyl frames soften and bow under the sustained 105°F-plus days we get west of the San Joaquin. We specify thicker-wall, heat-stable vinyl for every Mendota install to avoid this.
Pricing for Window Replacement in Mendota, CA
Here is what you can expect to pay in Mendota as of this year. Insert replacements run $650 to $1,200 per window. Full frame replacement, which is common here due to sill rot, runs $1,100 to $1,850 per window. Energy-efficient upgrades with low-E glass and argon fill run $750 to $1,400 per opening. These ranges reflect the homes we actually work on in the 93640: modest single-story wood-frame houses, mostly built between the 1950s and 1980s. What moves the price is what we find when we open the wall, not a hidden margin added later. We write allowances into every contract, and any surprise line item is priced and approved in writing before we touch it. Call (888) 635-0804 for a free, line-item estimate. Standing discounts apply for seniors and veterans.
We Also Serve Cities Near Mendota
Our crews run regular routes from Mendota out to Firebaugh, Kerman, Dos Palos, and Chowchilla. If you live in one of those communities, the same TruePane crew and the same warranty apply. We list this simply: we serve Mendota and the surrounding west-side towns with the same Done Right Promise. Window Replacement is what we do, and Window Replacement in Mendota is the page where we spell out what it costs and how it gets done.
Serving Mendota, CA - Our Local Coverage Area
We’re based in the Mendota 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 - Window Replacement in Mendota
Because the perimeter seal on your original window unit has failed, and the fine agricultural dust from the surrounding cantaloupe and row-crop fields is now moving through the window assembly itself. In Mendota, this is the single clearest sign a window needs full replacement, not new caulk. The dust is coming through gaps you cannot see from inside the room. Call us at (888) 635-0804 and we will inspect the seal and tell you exactly what is needed. The estimate is free.
Mendota sits in the western San Joaquin Valley, exposed to a hotter and drier summer envelope than Fresno and with less overnight cooling than Los Banos. Days above 108°F here are routine, and that heat bakes out rubber glazing seals and breaks down cheap vinyl faster. We specify thicker-wall, heat-stable vinyl and butyl sealant systems for every Mendota install. If a window survives three Mendota summers without a seal failure, it is doing its job. If it does not, we want it out.
It means condensation is forming on the interior glass because the window has almost no thermal barrier. The fog is on the surface, not inside the glass unit, but the cause is the same: a single-pane window against cold, wet air. If the frame is still straight, an insert replacement with low-E glass and argon fill stops the condensation. If the sill is soft from years of that condensation soaking in, the repair is a full frame replacement. In Mendota, soft sills are common. Call (888) 635-0804 and we will open up the trim and check before you decide anything.
We stop, photograph it, and come to you with a written allowance rider before we make another cut. Older Mendota homes from the 1950s through the 1980s often have wiring that a honest inspector would flag once it is exposed. If your permit triggers a code requirement, we price that exact requirement, you approve it in writing, and then we proceed. Nothing hidden. No change order that shows up at the end. This is the single biggest reason window quotes move in Mendota, and it is the reason we write the allowance into the contract from the first estimate. We have seen it too many times to leave it to chance.
You do not need impact glazing for dust or pesticide drift. What you need is a properly fabricated, properly flashed, properly sealed window unit with a tight perimeter and a frame material that will not warp under heat. Pesticide drift is a chemical exposure concern best addressed by sealing the building envelope and maintaining good indoor air filtration, not by impact-rated glass. For Mendota homes, we recommend energy-efficient vinyl or fiberglass units with low-E glass, argon fill, and butyl tape flashing around the entire rough opening. That combination stops the dust and the drift. Call (888) 635-0804 for a specific recommendation based on your home’s orientation and proximity to the fields.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Mendota and the Central Valley since 2008.



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