Windows & doors
Kitchen remodeling
Bathroom remodeling
Home additions & ADU
Roofing
Driveway & pavers
FenceFree written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
ES Windows Construction in San Mateo, CA | Iron Beam Contractors
We’re Iron Beam Contractors, an independent Belmont ES Windows service provider working across San Mateo, and we handle everything from single-unit window replacement to full-frame impact-rated installations on homes here in the fog belt. The short version: if you own an ES Windows product anywhere from the downtown flats up into the hills, we can diagnose it, source the right parts, and do the construction work properly. The thing that sets our ES Windows work apart in San Mateo is that we understand the damp marine air and older raised foundations most of these windows live on. Call (833) 756-5936 for a free estimate.
Why San Mateo Residents Choose Us for ES Windows Service
We work on ES Windows products specifically as a Foster City ES Windows service, not just windows in general. Nolan Driscoll built Iron Beam Contractors on the principle that the homeowner should know what’s inside the wall before we open it, and that applies double to window work on San Mateo’s older housing stock. We’re familiar with ES Windows vinyl single-hung and double-hung units, horizontal sliders, and sliding glass door systems, and we stock or can source OEM-compatible sashes, glass packs, rollers, and weatherseal for fast local turnaround. We’re not manufacturer-affiliated. We work for you, which means we’ll tell you plainly whether a unit should be reglazed and re-hardwared or replaced entirely. Most San Mateo homeowners we meet would rather hear that truth up front than discover a bad call six months after the work’s done.
One thing worth saying directly: we’re a full-scope general contractor, not a window-only shop. That matters in San Mateo because so many window jobs here turn into something more. We pull a fogged slider and find a rotted sill. We open a wall for a bigger egress window and find outdated framing. We handle all of it under one contract and one point of contact. For a deeper look at our broader window services, see our ES Windows sales & service page.
Styles & brands we work with







Common ES Windows Construction Problems We Solve in San Mateo
- Fogged or failed double-pane glass. This is the most common ES Windows complaint in San Mateo. Damp marine air works on the seals, and you’ll see interior condensation or a milky haze show up first on north- and west-facing units that never get direct sun to bake the moisture out. We replace failed insulated glass units with OEM glass where the profile is current, or a quality aftermarket IGU when that pencils out better for you.
- Vinyl frame and sash warping. South- and west-facing ES Windows in San Mateo take afternoon sun through the fog breaks, and we’ve seen frames bow enough to cause sash binding, hard operation, and air leaks at the meeting rail. Warped vinyl usually means replacement, not repair, and we’ll tell you that directly.
- Failed weatherstripping and corner welds. Winter rain driven by Pacific storms finds every gap. We replace pile seals, corner welds, and sill weatherstripping on ES Windows hung and slider units before they let water track into the rough opening.
- Leaking sliding glass door tracks. On ES Windows sliding doors around San Mateo, water tracks into the lower rail and rots the adjacent threshold or subfloor. We fix the door and the wood underneath it, because just replacing the weatherseal leaves the real damage hidden.
- Sticking or corroded hardware. Rollers, locks, and tilt-latches on coastal ES Windows units corrode from constant damp and grit. We replace or rebuild hardware so the window operates like it should, and we realign screens that no longer seat.
ES Windows Service in San Mateo: What Local Conditions Mean for Your Equipment
San Mateo’s core neighborhoods are full of 1920s-1940s stucco bungalows and Craftsman-style homes sitting on raised wood foundations on short piers. That construction style matters for window work. A replacement that starts as a simple like-for-like swap on a 1930s house near the numbered streets can expose sill rot, an out-of-level rough opening, and crawlspace moisture once we pull the old unit. We’ve opened walls on these downtown flats homes after a wet winter and found the framing soft enough to require sistering before any new window goes in. It’s the local truth of window work in San Mateo: the window is almost never the whole story. We plan for that from the first estimate.
For homeowners in nearby Burlingame dealing with the same marine-air conditions, we offer the same depth of service. See ES Windows service in Burlingame for specifics there.
ES Windows Models & Products We Service in San Mateo
We service and install the full range of ES Windows residential products across San Mateo: vinyl single-hung and double-hung replacement windows, horizontal sliding windows common on Peninsula side-yard and egress openings, sliding glass doors and patio door systems, and aluminum-framed and fixed picture window units. Our parts approach is straightforward. Where the ES Windows profile is still supported, we source OEM sashes, glass, and hardware. When OEM lead times drag or the cost doesn’t make sense, we spec quality aftermarket IGUs, rollers, and weatherseal that meet or exceed the original spec. We keep commonly-needed parts accessible for fast San Mateo turnaround, so you’re not waiting weeks on a simple reglaze.
See the difference
Before
After
Before
After
Before
AfterES Windows Service Pricing in San Mateo
Here’s what ES Windows construction work runs in San Mateo based on the projects we’ve scoped recently:
| Service | Typical Range |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Impact Window Installation | $8,000 – $25,000 |
What drives the number: how many units you’re replacing, whether the frames need full tear-out versus insert replacement, the condition of the rough opening once we see it, and whether you’re going with standard double-pane or impact-rated glass. A free estimate includes a physical inspection of the existing windows, the rough openings where they’re accessible, and a written line-item quote before any work starts. Call (833) 756-5936 to schedule yours.
Serving San Mateo, CA — Our Local Coverage Area
We’re based in the San Mateo area and know this community well as your local General Contractor – San Mateo. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – ES Windows Construction in San Mateo
No, fogged glass alone usually means a failed seal on the insulated glass unit, not a failed window. We replace the IGU itself on ES Windows units where the frame and sash are still sound. In San Mateo’s damp marine air, this is the most common ES Windows repair we do, and it’s far less expensive than full replacement. Call (833) 756-5936 and we’ll confirm what you’re dealing with.
The vinyl frame and sash absorb moisture and expand slightly in San Mateo’s wet winter air, and if the unit sits on a south- or west-facing wall, the daily heating-cooling cycle adds thermal movement over time. Binding usually means either worn rollers, a warped frame, or both. We adjust or replace rollers where the frame is straight, and we’ll tell you honestly if the frame has warped past repair.
Yes. We’ve done second-story additions in San Mateo where the side-yard setback leaves very little room for staging, and we sequence the window work around the framing and dry-in schedule. Matching new ES Windows units to existing ones below requires checking the original profile and glass package, but we spec it so the addition doesn’t look bolted on from the street.
They can, and it’s usually not the door’s fault alone. Wind-driven winter rain gets past worn weatherstripping and into the track, then the water has nowhere to drain if the track weep holes are clogged or the subfloor under the threshold has already started to rot. We replace the weatherseal and hardware and repair any subfloor damage in the same scope. Call (833) 756-5936 for an inspection before the next heavy rain finds the weak spot again.
It depends on your exposure and your priorities. San Mateo doesn’t face the hurricane threat that impact-rated units are designed for, but impact glass also reduces exterior noise from 101 and El Camino Real, and it adds real intrusion resistance. For homes near the 92/101 corridors, the noise reduction alone justifies the upgrade for some owners. We’ll walk you through the cost difference for your specific openings so you can decide with real numbers, not a sales pitch.
Service Areas Near San Mateo
Beyond San Mateo itself, we provide ES Windows service and installation across the Peninsula. Our San Mateo service area page covers the full list of nearby cities and ZIP codes. We also work regularly in ES Windows service in Hillsborough and the surrounding communities, plus the 94404, 94497, 94401, and 94402 ZIP codes throughout San Mateo.
Book Your ES Windows Service in San Mateo Today
Fogged glass, a sticking slider, or a full window replacement on a San Mateo bungalow – we’ll give you a straight diagnosis and a written quote through our Highlands-Baywood Park ES Windows service. Call (833) 756-5936 to schedule your free estimate, and we’ll get you on the schedule.
Written by Nolan Driscoll, Owner at Iron Beam Contractors, serving San Mateo since our first Peninsula window retrofit. If the structure makes sense on paper, it’ll hold in the field. If it doesn’t make sense on paper, we fix it before we touch a beam.