Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
ES Windows Construction in San Dimas, CA | Rowan Construction Group Pomona
We provide independent ES Windows service across San Dimas, working directly with ES’s aluminum and vinyl profiles rather than through any dealer network. The one thing that makes our ES Windows work here different is that we know which parcels fall under LA County’s Very High Fire Hazard Severity Zone - and which replacement units must carry Chapter 7A ignition-resistant glazing, not standard spec. Call (626) 606-1081 to schedule your free estimate.
Why San Dimas Residents Choose Us for ES Windows Service
Grant Rowan grew up in Los Angeles watching relatives patch, pour, and frame their way through weekend projects - then trained at Los Angeles Trade-Technical College before the first callus hardened. That background shows in how we approach ES Windows work: we name the part, show the wear, and put the replacement price in writing before anyone touches a frame.
We’ve fabricated and installed ES Windows sliding glass door and window units across the San Gabriel Valley for years. We know these units at the frame, roller, and glazing-panel level - not just as a catalog line. When a San Dimas homeowner calls about a sticking Series 3000 slider, we don’t start with a sales pitch. We start with what we found on the last three similar calls in this city: grit-caked rollers off San Dimas Canyon, oxidized weep holes on south-facing tracks, clouded dual-pane seals in 1970s tract ranches near Bonita Avenue.
We source OEM-spec ES rollers, tracks, and glazing gaskets where the profile is still produced, and use dimensionally matched aftermarket parts when OEM is discontinued. The frame is usually the valuable part. We’ll tell you honestly when it can be saved and when it’s corroded through.
Under Clause 1 of The Haven Standard, the price is written before anyone starts. No exceptions. Measure twice, then we can talk.
Common ES Windows Construction Problems We Solve in San Dimas

- Flat-spotted rollers on Series 3000 sliding doors. The steel or nylon ball-bearing rollers gall after 20-30 years, causing panels to drag or jump track. In San Dimas, this accelerates because wind-driven grit off San Dimas Canyon embeds in the track lubricant. We replace the roller assembly and clean the track profile to OEM spec.
- Clouded dual-pane glazing seals. Original single-pane or early dual-pane units fail at the seal, fogging between panes. This is a routine find in 1960s-1980s San Dimas tract homes that still carry their original ES Windows sliding doors - the thermal cycling here is harder on sealants than flat-valley neighbors see.
- Aluminum frame oxidation along bottom tracks. South- and west-facing units take the brunt of Santa Ana wind cycles, and the oxidation pits the sill weep holes. Once blocked, water backs into the track and corrodes the frame from the inside. We clear weep passages and assess whether the frame wall thickness still supports a rebuild.
- Water intrusion at thresholds sitting at or below finish grade. On San Dimas hillside and sloped-lot properties, original ES Windows sliding door thresholds were often set without proper drainage detail. Santa Ana-driven rain pools at the sill, rots the subfloor, and rusts the track anchor. We reset thresholds with proper slope and sealant backer rod.
- Non-compliant glazing in Chapter 7A zones. Northern San Dimas parcels above San Dimas Canyon Road must use multi-pane tempered glazing and ember-resistant assemblies for any significant window or door replacement. Standard ES Windows spec won’t pass LA County inspection there. We know which units carry the right labeling and which don’t.
Before
AfterES Windows Service in San Dimas: What Local Conditions Mean for Your Equipment
San Dimas sits at the foot of the San Gabriel Mountains, and the distinction between flat-land and hillside construction here is not cosmetic - it’s regulatory, geological, and structural. Parcels along and above San Dimas Canyon Road fall within LA County’s Very High Fire Hazard Severity Zone, which triggers Chapter 7A of the California Building Code. For ES Windows owners, this means any window or door replacement on those hillside properties must use ignition-resistant assemblies: multi-pane tempered glazing, ember-resistant venting, and fire-rated decking integration. If you’re considering broader work, our Kitchen Remodeling - San Dimas services also address these fire-safety requirements. The same ES Windows replacement on a ranch home east of Arrow Highway, down in the flat central portion of San Dimas, faces none of these requirements.
But the regulatory layer doesn’t stop at fire. Those same northern parcels also carry LA County debris-flow and landslide hazard overlays. Before grading permits issue, a licensed geotechnical engineer must sign off on soils stability - a step contractors accustomed to Pomona’s flat valley floor routinely miss, causing permit delays on hillside remodels that looked straightforward. We’ve seen it happen. The ES Windows unit spec is only half the paperwork; the other half is proving the hillside will hold the opening you’re cutting.
On a 1978 ranch tract home off San Dimas Canyon Road, we replaced a failing ES Windows Series 3000 sliding glass door whose rollers had flat-spotted and whose dual-pane glazing had clouded, and because the parcel sits in the Very High Fire Hazard Severity Zone we specified a Chapter 7A-compliant tempered multi-pane unit. We swapped the roller assembly, replaced the track, and reset the threshold to slope away from the slab so Santa Ana-driven rain no longer pooled at the sill. The panel now glides with one finger and the assembly meets the county’s ignition-resistant requirement.
ES Windows Models & Products We Service in San Dimas

We work on the full ES Windows residential line: ES Windows sales & service includes the Series 3000 aluminum sliding glass door, the Series 1000 vinyl single-hung window, multi-panel sliding glass door wall systems, and fixed and awning aluminum window units. We stock OEM-spec rollers and tracks for the Series 3000 and 1000 locally, which keeps turnaround tight for San Dimas service area calls. When ES has discontinued a profile - some early aluminum awning hardware from the 1980s is long gone - we source dimensionally matched aftermarket parts that fit the original frame extrusion without forcing modification. The frame is the valuable part. We don’t replace a sound aluminum extrusion just because the roller is obsolete.
ES Windows Service Pricing in San Dimas
Every project is quoted with a flat written price and written scope before work begins. No change proceeds without a signed change order. Here’s what ES Windows-related work runs in this market:
| Service | Price Range |
|---|---|
| Window Replacement | $4,500-$15,000 |
| Impact Window Installation | $8,000-$25,000 |
| Roof Replacement | $8,000-$20,000 |
| Roof Repair | $400-$1,800 |
What drives the cost: unit count, glazing spec (standard versus Chapter 7A tempered multi-pane), frame condition, and whether the existing opening needs structural modification for current code. A free estimate includes a documented photo record of what we find, a written scope, and a flat price. Call (626) 606-1081 for an exact quote - estimates are free.
Serving San Dimas, CA - Our Local Coverage Area

We’re based in the San Dimas 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 - ES Windows Construction in San Dimas
Are you an authorized ES Windows dealer or manufacturer-affiliated service provider?
No. Rowan Construction Group Pomona is an independent ES Windows service provider. We work directly with ES’s aluminum and vinyl profiles, sourcing OEM-spec and matched aftermarket parts based on what the unit actually needs - not what a dealer program requires us to sell.
Do you use OEM ES Windows parts or aftermarket replacements?
We use OEM-spec rollers, tracks, and glazing gaskets where the profile is still produced. When ES has discontinued a part - common on 1980s-era hardware - we use dimensionally matched aftermarket components that fit the original frame extrusion. We’ll show you both options and the price difference on the written quote.
How long does ES Windows service typically take in San Dimas?
Standard roller and track replacement on a Series 3000 slider is usually a half-day. Full unit replacement with Chapter 7A-compliant glazing runs longer - typically two to three days - because LA County inspects fire-rated assemblies before final sign-off. We build that timeline into the written scope so there are no surprises.
Which ES Windows models do you cover in San Dimas?
We service the Series 3000 aluminum sliding glass door, Series 1000 vinyl single-hung window, multi-panel sliding glass door wall systems, and fixed and awning aluminum window units. If you’re unsure what model you have, we identify it during the free estimate and show you the part numbers we found.
Does an ES Windows window or door replacement in the hillside area require a geotechnical report?
Only if the work involves grading or foundation modification. Pure unit replacement in an existing opening doesn’t trigger the geotechnical requirement. But hillside parcels along and above San Dimas Canyon Road often need drainage or threshold regrading to meet Chapter 7A, and that can cross into soils work. We flag this during the free estimate and coordinate the geotechnical report if needed. Call (626) 606-1081 to schedule - estimates are free.
Service Areas Near San Dimas

We run ES Windows calls across the eastern San Gabriel Valley and western Inland Empire. Our regular service area includes ES Windows service in Pomona - from the Fairplex corridor to downtown - plus Diamond Bar, Claremont, Walnut, and ES Windows service in Montclair. Most San Dimas appointments book within a day or two of the call.
Book Your ES Windows Service in San Dimas Today
Call (626) 606-1081 to schedule your free estimate. We’ll send a background-checked, uniformed technician with a documented photo record on every visit - included, not optional. The price is written before any work starts, every time, backed by our 365-Day Done Right Promise.
Written by Grant Rowan, Owner at Rowan Construction Group Pomona, serving San Dimas since 2007.







Before
After
Before
After
Before
After