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PGT Construction in Los Altos, CA | Iron Beam Contractors
We provide Loyola PGT service and independent PGT window and door service across Los Altos, from single-unit replacements to full additions. The difference here is simple: most contractors order glass first and deal with the Planning Commission later. We reverse that. We know Los Altos design review, we know PGT’s product line, and we sequence the work so your windows don’t sit in a warehouse while the permit stalls. Call (833) 756-5936 to talk through your project.
We are an independent contractor, not a PGT-authorized dealer. That matters because we choose the right PGT unit for your opening and your permit path, not the unit that keeps a manufacturer program happy. For full PGT sales & service depth, we carry the WinGuard, EnergyVue, and Premier lines you’ll find throughout Los Altos ranches and rebuilds.
Why Los Altos Residents Choose Us for PGT Service
Nolan Driscoll built Iron Beam Contractors on one rule: tell the homeowner what’s in the wall before you open it. That’s not a slogan. On a 1960s ranch near the Los Altos civic center, our crew found the original PGT vinyl sliders and single-hungs fogged, hinge-bound, and flashed straight to stucco over galvanized plumbing that was being replaced anyway. We pulled the units, reframed and reflashed the opening against the new wall assembly, installed PGT WinGuard vinyl sliders and casements to the design-review-approved drawing, and closed it out before winter rains tested the drainage.
That’s the work we do in Los Altos. We’re a Los Altos General Contractor, so when window replacement exposes rot at the rough opening or an addition requires reframing around a new PGT slider, we handle the framing, flashing, and finish under one contract. You’re not juggling a window crew, a framer, and a drywall guy. One accountable team from blueprint to backyard.
Styles & brands we work with







Common PGT Construction Problems We Solve in Los Altos
PGT builds a solid window. But Los Altos puts its own stress on every unit. Here’s what we see and fix:
- Failed sash balances and tilt-latch hardware on 1990s – 2000s PGT vinyl single-hungs. After two decades of UV and thermal cycling on the sunny south and west elevations of Los Altos ranches, the spring balances fatigue and the tilt latches snap. We replace them with genuine PGT hardware when the frame is sound, which it usually is.
- Fogged dual-pane insulated glass from lost seal integrity. The argon escapes and the pane haze shows up on the sun-facing glass of PGT sliders and fixed units alike. This one’s straightforward: new IGU, new seal, done. No reason to replace a good frame for dead glass.
- Rot and water intrusion at the rough opening. On 1950s – 70s Los Altos homes, original vinyl flanges and shims were flashed against stucco walls that predate modern water management. When we open the wall on a remodel, we often find moisture that was never going to dry. We reframe, reflash, and reset the PGT unit so it sheds water the way it should.
- Out-of-plumb frames and binding sliders on expansive clay. Los Altos sits on clay that swells in winter rains and shrinks through the dry season. That movement throws the original rough opening out of square, and a PGT roller track that can’t stay true will bind. The window isn’t broken. The house moved around it.
- Discontinued PGT parts on older models. PGT has cycled through hardware designs over the years. When the OEM sash or balance is discontinued, we source quality aftermarket equivalents that match the profile and load rating. A functioning frame beats a full replacement more often than people expect.
PGT Service in Los Altos: What Local Conditions Mean for Your Equipment
Here’s the thing out-of-town builders learn the hard way: Los Altos doesn’t let you swap windows on autopilot. Almost every replacement runs through building permits, and additions or anything touching the second-story massing goes to discretionary Planning Commission design review. The floor-area-ratio limits and heritage-tree ordinance are the two tripwires. A mature valley oak or redwood near a lot line can freeze a project, and neighbors routinely appeal two-story massing. So on an addition, we have to spec the PGT service in Mountain View opening, pull an arborist report, and clear design review before we order glass. If the approval stalls at the counter, a special-order PGT unit waits for weeks.
That changes how we sequence every Los Altos job. We don’t frame the opening and hope. We confirm the permit path first, then order the PGT unit to the approved drawing. That’s why our clients don’t have windows stacked in a garage while the Planning Commission debates a tree canopy. Los Altos construction is as much a permitting and neighborhood-compatibility exercise as a build, and we plan PGT work around that reality.
PGT Models & Products We Service in Los Altos
We work across the PGT lines you’ll find on Los Altos homes: WinGuard vinyl single-hungs and casements, WinGuard aluminum impact units, the EnergyVue thermally-broken vinyl series, and Premier vinyl sliding glass doors. When a frame is straight and sound, we use genuine PGT replacement sash, glass units, balances, and hardware. When the OEM assembly is discontinued, we use quality aftermarket IGUs and hardware that match the profile and load rating. If the frame is bowed, flanges are rotted, or the opening has moved, we tell you plainly that full replacement is the right call. We won’t dress up a bad frame and call it a repair.
See the difference
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AfterPGT Service Pricing in Los Altos
PGT work in Los Altos prices out differently than neighboring cities because design review and arborist requirements add documentation time, and clay-soil openings often need reframing before the new unit seats. Here’s what we tell clients to budget:
| Service | Typical Los Altos Range |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Impact Window Installation | $8,000 – $25,000 |
| Roof Repair (when tie-in work is needed at window heads) | $400 – $1,800 |
| Home Addition (with PGT openings included) | $45,000 – $130,000 |
Every estimate we write is itemized. We walk the opening, check the frame, and tell you repair versus replace before you spend a dollar. Call (833) 756-5936 to have us look at your PGT windows in Los Altos.
Serving Los Altos, CA — Our Local Coverage Area
We’re based in the Los Altos 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 – PGT Construction in Los Altos
In most cases, yes. Los Altos requires building permits for window and door replacement, and additions or changes to the exterior envelope go through discretionary design review. We pull the permit and sequence the order so the PGT service in Stanford unit arrives after the approval, not before. Call (833) 756-5936 to confirm your project’s path before you start.
Fogging means the dual-pane seal has failed and the argon has escaped. Hard-to-open operation on older PGT single-hungs usually points to worn sash balances and tilt-latch hardware. Both are repairable on a sound frame. We stock or source these parts locally so Los Altos homeowners don’t wait for special orders on every call.
Yes, if the existing unit is still manufactured or a close-profile EnergyVue or WinGuard match exists. We spec the addition’s PGT openings to the design-review-approved drawing, which means the new units match in profile, glass, and sightline. Matching is standard for us on Los Altos additions; call (833) 756-5936 and we’ll tell you what’s possible for your home.
In Los Altos, it’s often the house. Expansive clay swells in winter rains and shrinks through dry season, throwing rough openings out of square. The PGT roller track then binds. We check the frame for true, look for movement at the header, and tell you whether the fix is a roller replacement, a track adjustment, or reframing. A tight slider doesn’t always mean a failed unit.
Often, yes. If the frame is square and structurally sound, we repair with genuine PGT sash, balances, glass units, and hardware. We recommend replacement only when the frame is bowed, the flanges are rotted, or the opening itself has moved. We’ll show you the condition before we recommend. Estimates are free for Los Altos homes.
Service Areas Near Los Altos
We serve Los Altos and the surrounding communities, including Los Altos service area neighborhoods, PGT service in Los Altos Hills, and PGT service in Palo Alto. If your PGT windows or doors need attention and you’re anywhere in this corridor, call us.
Book Your PGT Service in Los Altos Today
If your PGT windows are fogged, binding, or ready for replacement, call (833) 756-5936. We’ll walk the opening, check the frame, and give you a straight answer on repair versus replace. If the structure makes sense on paper, it’ll hold in the field. If it doesn’t, we fix it before we touch a beam.
Written by Nolan Driscoll, Owner at Iron Beam Contractors, serving Los Altos and the South Bay.