







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
CGI Construction in Corona, CA | Bradford Remodeling Co Riverside
Bradford Remodeling Co Riverside, a General Contractor in Corona, provides independent CGI window and door service across Corona, CA. We install, repair, and retrofit CGI Sentinel, Estate, and Targa lines on homes from the Circle City core to the Foothill Parkway tract developments. One thing separates our CGI work here from anywhere else: we know how Corona’s 100-degree summer heat and Santa Ana grit destroy seals, warp aluminum frames, and pack drainage weeps with foothill dust. Call (424) 567-8472 for a written estimate before any work starts.
Our crews have cut and fitted CGI windows and patio doors on hundreds of Corona remodels, so we know exactly how their vinyl and aluminum lines perform under the city’s foothill heat and Santa Ana wind loads. We are not manufacturer-affiliated or authorized by CGI. We are an independent service provider, which means we specify the right part for the job, not the part a brand rep tells us to push. For critical structural components we use genuine CGI hardware and seals when available. For older out-of-production lines, we specify quality aftermarket glass and rollers to keep repair costs below full replacement.
If you own a Corona home built between the 1950s and the 1990s with original CGI windows or patio doors, you are probably dealing with at least one of the failure modes we fix every week. CGI sales & service is what we do, and we do it with a written price before the first tool comes out.
Why Corona Residents Choose Us for CGI Service

Curtis Lane grew up in Los Angeles and learned the trade at Los Angeles Trade-Technical College before spending the better part of three decades swinging a hammer and running crews across Southern California. He keeps a beat-up copy of the current California Building Code on the seat of his truck, and he has been known to pull it out mid-conversation when a number needs backing up. That is who runs our CGI work in Corona.
We do not send a different crew every week. Background-checked, uniformed technicians show up on schedule, and the scope on the proposal is the scope on the job. Every completed project carries the 365-Day Done Right Promise: if the work fails inside a year, we come back and correct it at no charge. A live person answers the phone 24/7, not a voicemail tree.
Corona homeowners have been burned by no-shows and re-priced bids. We put the price in writing before work starts, every time. No numbers move at the door.
Styles & brands we work with







Common CGI Construction Problems We Solve in Corona
- Thermal bowing in CGI aluminum frames during summer heat waves. Corona regularly hits triple digits in July and August. Aluminum expands, frames bow, sashes stick, and weatherstripping tears. We straighten frames with heat and clamping, then install new compression seals. The fix usually beats a full replacement by thousands of dollars.
- Condensation between the panes of older CGI units. Years of intense UV and dry heat break down the sealant on double-pane glass. Once the seal fails, moisture gets trapped between the panes and fogs the view permanently. We replace failed insulated glass units with aftermarket glass sized to the original frame.
- Drainage weeps clogged with fine foothill dust. Homes near the Santa Ana River wash and the northern hills collect dust you can sweep off a windowsill every morning. That dust packs into CGI weep holes, then winter rains pool water in the tracks. We clear the weeps and install wider-channel replacements where the original design allows.
- Loose hardware and locks on CGI patio doors. Repeated high wind gusts from the Santa Anas work screws and latch plates loose over time. Add post-war slab foundation settling and the door shifts out of square. We reset the hardware, shim the frame, and restore a tight lockup.
- Failed seals on original single-pane CGI windows from the 1950s and 1960s. Many Circle City homes still have original aluminum single-panes. The glass is efficient by nobody’s standard. We upgrade to impact-rated insulated units without tearing out the interior trim.
CGI Service in Corona: What Local Conditions Mean for Your Equipment

Corona’s Circle City core has narrow lots and a high water table. When we handle a Corona Kitchen Remodeling or retrofit 1950s tract homes with new CGI windows, we often find original cast-iron sewer lines exposed under the foundations. That means our crews coordinate trenchless sewer repair with the window install to avoid disturbing the slab. A window crew that does not understand Corona’s plumbing history will cut a hole, hit a pipe, and leave you with a flooded crawl space. We sequence the trades so the sewer work happens before the window goes in, not after.
This is not true in Riverside or Rancho Cucamonga to the same degree, and it is not true in newer Corona subdivisions built on post-tension slabs with PVC sewer laterals. It is a Circle City core condition specifically. Foothill terrain also means many older Corona homes were built with drainage designs suited for orange groves, not suburban density. When we install CGI windows and doors, we check the rough opening for water intrusion paths that pre-date the window, not just the window itself.
CGI Models & Products We Service in Corona
We work on the full CGI lineup that shows up in Corona homes: the Sentinel Series casements and picture windows common on 1980s and 1990s tract builds, the Estate Collection single-hungs and sliders found on larger foothill properties, and the Targa Series impact-rated units being retrofitted into hillside homes today. The CGI Clarity Glass Package appears most often on newer builds and remodels in the northeast neighborhoods.
For critical structural components, we use genuine CGI hardware and seals when available. For older out-of-production lines, we specify quality aftermarket glass and rollers. We replace a unit only when the frame is warped beyond correction or the glass package is compromised. Otherwise, targeted component repair gives Corona homeowners another decade of service.
See the difference
Before
After
Before
After
Before
AfterCGI Service Pricing in Corona

Here are the price ranges we quote for CGI-related work in Corona. These are real numbers, not “call for a quote” placeholders.
| Service | Typical Range |
|---|---|
| Impact Window Installation | $8,000 – $25,000 |
| Window Replacement | $4,500 – $15,000 |
| Tile Roof Repair | $600 – $2,500 |
What drives the cost: the number of units, the glass package you specify, whether the frame needs straightening or full replacement, and whether we are dealing with a ground-floor slider or a second-story casement reachable only by ladder. Every estimate is a written line-item scope. No number moves at the door. Call (424) 567-8472 to schedule your free estimate.
Serving Corona, CA - Our Local Coverage Area
We’re based in the Corona 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 – CGI Construction in Corona
We replace just the sash whenever the frame is straight and the rough opening is sound. Replacing the whole frame is only necessary when the aluminum has bowed permanently or the original installation was never flashed correctly. In most Corona homes, a sash replacement restores function for a fraction of the full-frame cost. Call (424) 567-8472 and we’ll tell you which one your windows need.
Yes. We measure the existing frame, order impact-rated insulated glass units sized to fit, and set them into the original openings. The interior trim stays in place. This is the fastest path to better energy performance and impact protection on older Corona homes without turning the job into a full interior remodel.
The seal around the insulated glass unit has failed. Years of dry heat and UV in Corona break down the sealant, then winter temperature swings pull moisture into the air space between the panes. The fix is replacing the glass unit, not the whole window. Cost depends on the size and glass package, but it is almost always less than a full replacement.
We clear the existing weeps, then install wider-channel replacements where the frame design allows. We also check that the sill slopes correctly so water drains out instead of sitting in the track. On homes near the wash, we recommend cleaning weeps twice a year. It takes five minutes and prevents water damage that costs hundreds to fix.
It depends on the frame. If the aluminum is straight and the rollers are the only problem, replacing the rollers and resetting the hardware costs a few hundred dollars and buys years of service. If the frame is bowed or the glass package is compromised, replacement is the honest call. We will tell you which one applies to your door, in writing, before you spend a dollar.
Service Areas Near Corona
Our CGI service coverage includes Corona service area and the surrounding communities. For homeowners just east of the city line, we offer CGI service in Riverside. North of Corona, we cover CGI service in Rancho Cucamonga. We also serve Upland, Yorba Linda, and Fontana on a scheduled basis.
Book Your CGI Service in Corona Today
Straight number, real scope, no surprises at the final walk. Call (424) 567-8472 to schedule your free CGI service estimate in Corona. A live person answers, and we will have a written price in your hand before any work begins.
Written by Curtis Lane, Owner at Bradford Remodeling Co Riverside, serving Corona since 2004.











