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ES Windows Construction in Claremont, CA | Sycamore Contractors
We provide independent ES Windows construction and replacement service across Claremont, CA 91711, and offer ES Windows in Montclair as well. We’re not a dealer or factory-authorized shop – we’re a licensed general contractor whose crews know ES Windows systems well enough to repair them honestly and replace them properly. The one thing that separates our work in Claremont from anywhere else is simple: this city’s architectural review process means a window swap near the Village isn’t just a window swap. It’s a compliance project. Call (877) 265-6284 for a free estimate on ES Windows work in Claremont.
Why Claremont Residents Choose Us for ES Windows Service
Nate Calloway, who runs Sycamore Contractors, grew up in Temecula’s Redhawk neighborhood and spent years running construction crews across the Inland Empire before turning his focus to full-scope remodeling. That background matters when you’re dealing with ES Windows units that were installed decades ago in Claremont homes built before modern flashing standards existed. We’re equally comfortable pulling a window to inspect the rough opening for dry rot as we are sourcing a period-appropriate replacement frame that won’t get flagged by design review. We stock OEM-compatible glass, hardware, and weatherstripping for ES Windows 2000 Series aluminum units, 4500 Series vinyl, and 6000 Series fiberglass systems, so we’re not waiting on a distributor every time a seal fails or a track wears out. For Claremont homeowners, that means fewer delays and one accountable team from first measurement to final inspection. ES Windows sales & service is what we do, and in Claremont we do it with a working knowledge of how this city’s rules shape every opening.
Styles & brands we work with







Common ES Windows Construction Problems We Solve in Claremont
- Fogged dual-pane glass from seal failure. This shows up constantly in Claremont because of the intense summer UV load on south- and west-facing units. Homeowners often mistake the haze for mineral dust from the dry inland air. It’s almost always a failed seal between panes. We replace the insulated glass unit and verify the frame isn’t the reason the seal failed in the first place.
- Vinyl frame distortion on 4500 Series units. The original 4500 vinyl windows hold up well in mild coastal climates, but Claremont’s sustained July and August heat pushes vinyl past its comfort zone. We see frames that have warped just enough to break the seal or bind the sash. Repair means replacing the frame section, not forcing the sash closed.
- Dry rot in wood-framed ES Windows units. Homes from the 1980s and 1990s tract buildout around Claremont often have original wood-frame openings with inadequate flashing. Winter rains soak the sill, rot sets in, and the window loses its structural seat. We cut out the rotted framing, sister in new material, and reflash before reinstalling the unit.
- Sticking sliding glass doors from track wear. The inland valley dust here is fine and abrasive. It works into ES Windows sliding door tracks, grinds against the rollers, and within a few seasons the door feels like you’re pushing it through gravel. We rebuild the track assemblies and replace rollers with heavier-duty hardware where the original spec failed.
- Failed flashing around replacement windows. We inherited more than a few Claremont jobs where a previous contractor set the ES Windows unit into the opening without proper pan flashing. Water found its way behind the stucco and rotted out the king stud. We open it up, fix the damage, and flash it correctly so the problem doesn’t repeat.
ES Windows Service in Claremont: What Local Conditions Mean for Your Equipment
Claremont sits at the foot of the San Gabriel Mountains, and that location does two things to windows. First, the inland valley heat and UV are relentless – ES Windows units on the south side of a home take ten-plus hours of direct sun from May through October. Seals and vinyl frames age faster here than they do twenty miles west. Second, and this is the part most contractors miss, Claremont’s hilly, mountain-adjacent pockets catch Santa Ana winds that drive fine dust and debris into window tracks and door assemblies. We also provide ES Windows service in La Verne, and we service homes near the colleges and the Village where old Craftsman bungalows and Spanish Colonial Revival houses carry original ES Windows installations that are now forty to eighty years old. On those properties, the question isn’t just “is the window broken” – it’s “can we fix or replace it in a way the city’s design review board will accept.” That’s the part of the job that doesn’t exist if you’re working in Pomona or Montclair. Here, it’s the whole game. Claremont’s planning process requires that even a like-for-like replacement near the Village reads as historically consistent, which means the finish, the frame profile, and often the glass tint all matter. We’ve learned to document the existing window, spec a replacement that matches, and walk the submittal through review ourselves.
ES Windows Models & Products We Service in Claremont
Our crews work on the full ES Windows lineup you’ll find in Claremont homes: 2000 Series aluminum windows, 4500 Series vinyl windows, 6000 Series fiberglass windows, and ES Windows sliding glass doors. For critical components – glass packs, locking hardware, operating arms – we use OEM parts when they’re available through our supplier network. For weatherstripping, seals, and track components, we often use aftermarket materials that meet or beat the original spec, especially where the original part was the weak point to begin with. The practical advantage for Claremont homeowners is turnaround. We keep common ES Windows parts on hand for the models we see most often in this market, which means we’re not quoting a three-week wait for a standard seal replacement. When replacement is the smarter move, we bring full-frame options and can install impact-rated units where the exposure or fire-safety concerns justify it.
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AfterES Windows Service Pricing in Claremont
What you’ll pay depends on what we find once the window comes out of the opening. The table below reflects the range of work we see on ES Windows projects in Claremont – not generic Southern California numbers, but what this market actually bears. And yes, the “window replacement” line can swing from $4,500 to $15,000 because a straightforward vinyl swap in a mid-century ranch costs far less than a custom-matched restoration replacement near the Village that has to clear design review. Call (877) 265-6284 and we’ll give you a written line-item estimate before any work starts.
| Service | Price Range |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Impact Window Installation | $8,000 – $25,000 |
| Roof Repair (adjacent to window flashing work) | $400 – $1,800 |
Serving Claremont, CA — Our Local Coverage Area
We’re based in the Claremont area and know this community well, and we also handle ES Windows repair in Upland. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – ES Windows Construction in Claremont
Yes, in many cases – especially if your home is within the city’s historic district or near the Village, where Claremont’s architectural review board evaluates window replacements against the home’s original character. Even like-for-like ES Windows swaps can require design review here. We handle the submittal documents and work with the city so you don’t have to navigate that process alone. Call (877) 265-6284 and we’ll tell you what applies to your address.
Most fogged ES Windows units can be repaired by replacing the insulated glass unit, not the entire window. The exception is when the frame itself has failed – warped vinyl on a 4500 Series, or wood rot in the original opening – because then you’re chasing a moving target. We’ll tell you straight whether a glass replacement will hold or whether the frame needs to go. A free estimate at (877) 265-6284 settles it.
Claremont’s inland heat and intense UV shorten the life of window seals and vinyl frames on south- and west-facing exposures. The Santa Ana winds drive abrasive dust into tracks and hardware. Homes at the foot of the San Gabriels also deal with higher radiated heat from the mountainside, so low-E glass and proper sealing matter more here than they would in a coastal climate.
Not by default. ES Windows offers impact-rated products, but the standard 2000 and 4500 Series units in most Claremont homes do not carry a fire-resistance rating. On hillside-adjacent properties where fire-resistant detailing matters, we can switch to a rated glass package or recommend an entirely different window line if that’s the better long-term call for your site.
Yes – this is where we earn our keep in Claremont. We work with custom frame manufacturers to match the profile, finish, and glass tint of your existing ES Windows, especially on Craftsman and Spanish Colonial Revival homes where the window style is part of the architecture. We recently replaced a full set of fogged 2000 Series aluminum windows in a 1920s home near the Claremont Colleges, worked through the city’s design review, and installed dual-pane low-E glass with custom-matched frames that preserved the original look. Reach us at (877) 265-6284 to see if a match is feasible for your unit.
Service Areas Near Claremont
We run ES Windows construction crews throughout the eastern San Gabriel Valley and the Inland Empire. In addition to Claremont, we handle Claremont service area calls that extend into neighboring communities, and we also cover ES Windows service in Stanton and ES Windows service in Sky Valley for our Orange County and desert-region clients.
Book Your ES Windows Service in Claremont Today
If your ES Windows units are fogging, sticking, or failing outright, we’re ready to take a look. Call (877) 265-6284 to schedule your free estimate in Claremont, or scroll up to read more about how we work with the city’s review process. Do it right the first time, or you’ll do it twice in the July heat.
Written by Nate Calloway, Owner at Sycamore Contractors, serving Claremont and the surrounding Inland Empire.