Window Replacement in Los Altos - Free In-Home Measure, Written Price

Fast, Reliable Window Replacement Across Los Altos

Window replacement in Los Altos is a different animal than it is two miles east. The city’s housing stock skews toward 1950s-1970s ranch homes with original single-pane aluminum sliders, and those 6-foot and 8-foot pocket-style rough openings just don’t accept modern off-the-shelf units without custom work. That’s the reality we deal with every week, and it changes how the job should be priced, spec’d, and permitted. If you’re running a ranch near El Camino Real or up in the hills off Natoma Road with windows that fog between the panes, rattle in the frame, or let summer heat pour through west-facing glass, call Westlight at (903) 354-7134. We’ll give you a written price before any work starts, and we’ll spec the job to your actual rough opening, not the closest stock size.

Call (903) 354-7134

Why Westlight Windows & Doors Is Los Altos’s Preferred Window Replacement Company

We’ve been doing window and door work since 2009, and while we don’t pretend to have some decades-long Los Altos pedigree, we’ve learned this town’s quirks the hard way – on actual jobs, in actual walls. The difference matters because Los Altos homes hide things. The original 1960s sliders here were pocket units, meaning the frame was built into the wall, not hung in a pre-framed opening. When we measure a home off Springer Road or Country Club Drive, we’re not just checking width and height. We’re checking sill condition, header sizing, waterproofing, and whether the wiring inside the wall is something we should flag before we cut anything.

Every Westlight estimate includes the same written guarantees, all part of Window Replacement done the Kingswell Way: a firm price before the job starts, a committed arrival window, a clean job site at the end of every day, and a written guarantee handed to you when the work is complete. If something fails within the guarantee period, we come back and fix it at no charge. No phone tag, no service-ticket purgatory. Owen Satterfield runs our crews, and he’s the one who signs off on every Los Altos job before the final walkthrough.

Window Repair in Los Altos

Window Repair in Los Altos usually means one of two things: either a single sash or hardware component has failed and the opening can be restored without touching the rest of the wall, or the failure is in the frame and a band-aid won’t hold. The first case – a broken balance, a failed latch, a fogged insulated glass unit – is typically a $180-$420 repair and is often done in a single visit. The second case is the one we see constantly in Los Altos’s 1960s and 1970s ranches, where aluminum pocket sliders have eaten through their weatherstripping and started corroding at the sill track. Once the track is pitted and the corner welds are shot, repair stops making financial sense.

Hardware and Glass Repairs

Fogged insulated glass, worn balances, broken locks, and sagging sashes are the most common repair calls we get from Los Altos homeowners. These are contained fixes: $180-$420 per window, with the glass or hardware ordered to the existing frame dimensions. We stock common replacement parts for older Milgard and Marvin units, which covers a meaningful share of the original windows in this city.

Frame and Track Restoration

This is the gray zone. If rot or corrosion is confined to the sill and the jamb is still sound, we can replace the track and weatherstripping and buy the window another decade. That runs $300-$700 per opening. But on many Los Altos ranches, the corrosion has crept up the jamb and the opening needs real surgery – at which point you’re pricing a replacement, not a repair. We’ll tell you which one you’re in before we quote anything.

Window Replacement Company in Los Altos

Window Replacement Company work in Los Altos is not a drop-in operation. The city’s original ranch windows were built as pocket sliders in 6-foot and 8-foot rough openings, and today’s pre-hung units simply don’t line up with those dimensions. That means most replacement jobs here become custom orders through manufacturers we work with directly – PGT, Marvin, and Milgard being the ones we spec most often for Los Altos homes. The good news: this is exactly the work our crews know cold.

Custom-Sized Replacement Windows

Because we measure to the actual rough opening rather than assuming a stock size will work, every Los Altos replacement job starts with a detailed opening-by-opening assessment. We document framing depth, sill slope, flashing condition, and visible water intrusion before we order anything. Then we spec the window around what we found, not the other way around. A standard replacement on a 1960s ranch here runs $900-$1,800 per opening, depending on size and glass package.

Full Frame Replacement

When the original window has rotted the surrounding framing or the opening needs re-flashing, we pull the entire unit including the frame down to the rough opening. This is the more invasive job, and in Los Altos it’s also the one that most often triggers electrical or structural surprises once the wall is open. Full frame replacement runs $1,500-$3,000 per opening here, and we include a written change-order process so any hidden condition is priced and approved before we proceed.

Trusted Brands We Service in Los Altos

We install eight manufacturer lines, which means we can match a window to your home instead of forcing your home to accept one brand. For Los Altos specifically, the brands we reach for most are PGT for impact-rated and high-wind configurations, CGI for multi-panel sliders where a clean frame profile matters, and CWS for thermally broken aluminum that matches the low-profile look original to mid-century ranches. We keep common hardware and glass parts for these lines ready for Los Altos service calls, so a repair doesn’t turn into a three-week wait on a factory order.

Common Window Replacement Problems We See in Los Altos Homes

• Original aluminum sliders with rotted sill tracks. On 1960s ranches throughout Los Altos, the original windows were installed without proper sill flashing, and decades of winter rain wicking behind the track has rotted the framing underneath. By the time the window binds or leaks, the real problem is inside the wall.
• Pocket-slider rough openings that don’t match modern stock sizes. The 6-foot and 8-foot pocket dimensions on original Los Altos ranch sliders mean almost every replacement is a custom order. Contractors who try to shim a stock unit into these openings leave a drafty, leak-prone perimeter that never seals right.
• West-facing glass without proper SHGC ratings. Los Altos sits inland enough that summer afternoons regularly hit 90°F, and a west-facing family room with untinted single-pane glass turns into an oven. The low-E coating has to be tuned to the exposure, or you’ve paid for an upgrade that doesn’t actually help.
• Cloth-wrapped wiring hidden behind window jambs. Homes built before 1970 in Los Altos commonly have cloth-insulated electrical wire running through framing members we need to open or re-route. We flag this before any saw comes out, and we bring in a licensed electrician to do it right.

Pricing for Window Replacement in Los Altos, CA

We Also Serve Cities Near Los Altos

Our crews cover all of Window Replacement in Los Altos and the surrounding Peninsula: Mountain View, Stanford, Palo Alto, and Menlo Park. Wherever you are, the same written-price-before-work policy applies. If you’re one town over and wondering whether we’ll come out, the answer is yes – call us and we’ll put you on the schedule.

FAQs About Window Replacement in Los Altos