Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Why Los Angeles Homeowners Choose CGI Construction
Penhallow Remodeling Los Angeles provides independent CGI repair in Los Angeles, including window and door repair, glass replacement, and installation across the city, from the 1920s bungalows of Mid-City to the hillside homes of Silver Lake and Echo Park. We are not an authorized CGI dealer, and we say that plainly. What we are is a crew that has worked on CGI products for more than two decades, knows which Sentinel and Estate units fail in coastal air versus which Targa hardware seizes in Santa Ana dust, and will give you a written price before we touch a single screw. Call (213) 277-6578 for a free estimate.
CGI windows are built for hurricane zones, which makes them a natural fit for Los Angeles homes that sit in the path of seasonal wind-driven debris or simply need a stouter window than the original 1960s single-pane. But the same product that handles a Florida storm has its own failure patterns here: rubber seals degrade under relentless UV, salt air eats at hardware in the beach cities, and the dry, dusty conditions can gum up balance systems on double-hungs faster than the manufacturer’s coastal testing ever anticipated. We know these patterns because we have pulled apart enough CGI units across the Basin to see them repeat. When a Sentinel casement starts grinding, we do not guess. We know what we are likely to find before we open it.
Why Trust Penhallow Remodeling Los Angeles for Your CGI Construction?
Trevor Nash runs our Los Angeles operation. He grew up in Crenshaw watching his uncle patch drywall and re-frame doorways in the old bungalows nearby, studied construction technology at Los Angeles Trade-Technical College, and then spent the better part of twenty years working residential and light commercial jobs across the Basin before starting Penhallow Remodeling. You’ll hear his approach in the first conversation: give you a number first, then pick up the tools. That is not a slogan. It is how we run every CGI job, whether we are replacing a fogged insulated glass unit in a Sentinel or re-hanging an Estate double-hung that will not stay up.
Here is what trusting us looks like in practice. We run background-checked, uniformed technicians on every visit. We source genuine CGI replacement glass and hardware through our established supply channels, because aftermarket parts rarely hold CGI’s tolerances for impact and air/water performance. We write the guarantee down, every time. If the repair fails within 365 days, we come back and fix it at no charge. That is the Done Right Promise, and it has been in writing on every project since the Kingswell standard began in 2004. A live person answers our phone around the clock, not a voicemail tree. And you will know the price before we start.
Styles & brands we work with
Common CGI Construction Problems We Fix in Los Angeles
CGI builds a solid window. That is why we service them. But every product line has failure modes, and Los Angeles conditions accelerate a few of them. Here are the five we see most often:
- Fogged glass in CGI Sentinel and Estate insulated units. The seal between the panes fails, moisture gets in, and the window goes cloudy. In Los Angeles, this is especially common within a few miles of the coast, where daily humidity swings stress the sealant. On older Sentinel impact units, the cause is often a degraded polyisobutylene edge seal. The fix is a replacement insulated glass unit, not a defogging service that hides the symptom. Fogging never clears up on its own.
- Corroded or seized hardware on CGI casement and awning windows. Salt air in Venice, Playa del Rey, and San Pedro eats at the hinge mechanisms and locking points on CGI operators. What starts as a stiff crank turns into a grind, then a snapped gear. We replace the full hinge and operator assembly, not just the visible arm, because the corrosion almost always extends into the frame mount.
- Failed balance systems on CGI double-hung windows. The sash either slams shut when you let go or will not stay open past a few inches. In Los Angeles, fine dust from the dry months works its way into the balance tube and jams the spring mechanism. This is a classic Targa and Classic Series issue. We inspect the full balance assembly and replace the block-and-tackle or spiral balance as a matched set, because replacing one side only guarantees a crooked sash within a year.
- Warped or swollen sashes on CGI wood-clad interiors. In kitchens and bathrooms with poor ventilation, steam and cooking moisture work into the wood cladding on Estates and Classics. The sash swells, sticks, and eventually the wood finish blisters. This is a ventilation problem as much as a window problem. We re-seal and repair where the damage is shallow, and tell you plainly when the sash has gone too far to save.
- Air and water leaks around the frame after the original install. Whether the rough opening was never flashed properly or the original sealant has cracked after years of direct sun, leaks show up as drafts, dust lines on the sill, or water stains after a strong rain. On hillside lots in Silver Lake and Echo Park, wind-driven rain finds these gaps fast. We remove the old sealant, re-flash the opening correctly, and run a blower door test to confirm the leak is gone before we call the job done.
CGI Parts & Our Repair-vs-Replace Approach
When a CGI window fails, the first question is whether to repair the failing part or replace the whole unit. We give you a straight answer, because the straight answer is usually in the math. A single fogged pane or a seized hinge on an otherwise healthy five-year-old Sentinel is a repair. A fifteen-year-old Estate with fogged glass, corroded hardware, and a wood sash that has started to rot is three repairs stacked on a unit already past half its life. For units beyond fifteen to twenty years with multiple issues, we usually recommend full replacement. Not because we make more money that way. Because you will spend more on piecemeal fixes over the next five years than on one clean install.
On parts, we have a firm stance: genuine CGI components, sourced through our established supply network. Aftermarket glass and hardware often miss CGI’s exact tolerances for impact resistance and air/water performance, and we will not put a part in your home that we would not stand behind for 365 days. For the most common Sentinel and Classic Series repairs, we keep a working stock of hinges, operators, balance assemblies, and insulated glass units in standard sizes, which means many jobs do not have to wait on a manufacturer shipment. Call (213) 277-6578 if you are deciding between repair and replace. We will tell you what we would do if it were our house.
Our CGI Service Process – Step by Step
- 1
Diagnosis. We start by identifying exactly what failed and why. We check the seal integrity, the hardware movement, the balance tension, and the frame flashing. If we find a ventilation or drainage problem that caused the failure, we tell you, because fixing the window without fixing the cause means we will be back in eighteen months.
- 2
Repair or replacement. We write the scope of work and the price. You approve it before we order parts or pull a window. No surprise line items after the job is open.
- 3
Installation or repair. Our technicians remove the old sash or glass unit, prep the opening, address any flashing or substrate issues, and install the new components using OEM-spec fasteners and sealant. We treat the rough opening like the weather is coming, because in Los Angeles, eventually it will.
- 4
Testing. For window work, we run an air and water test to confirm the unit is sealed. Every sash gets cycled open and closed repeatedly. The job is not done until the window operates the way CGI built it to operate.
- 5
Warranty. You receive the written 365-Day Done Right Promise before we leave. If anything we touched fails within a year, we return and repair it at no charge. That is the whole promise, in writing.
See the difference
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AfterCGI Products We Service & Install in Los Angeles
Our crew works on the full CGI residential line, with the most experience in these four collections: the Sentinel Series impact windows, the Estate Collection, the Classic Series, and the Targa Series. We handle everything from single-sash repairs to full replacement and CGI in Santa Monica and across Los Angeles. For homeowners in hillside or brush-adjacent zones where impact rating matters, we recommend the Sentinel line. For mid-century homes where the original window proportions define the look, the Estate and Classic series usually match better. We stock standard insulated glass units and common hardware for all four lines locally, and special-order anything unusual through our supply network.
We Also Service These Brands
CGI is one of several window and finish brands we know well. We also install and service KraftMaid and Wellborn cabinetry, Cambria and Silestone countertops, and Kohler plumbing fixtures. If your project touches more than one trade, you do not need separate contractors calling each other. You need one General Contractor crew.
FAQs – CGI Construction Service in Los Angeles
In most cases, yes, we can replace just the insulated glass unit without a new sash. This applies to fogged or broken panes where the surrounding frame and hardware are still sound. If the sash itself is warped or the hardware is corroded beyond repair, a new sash makes more sense. Call (213) 277-6578 and we will tell you which path fits your window.
CGI’s glass seal warranty varies by product line and purchase terms, and 2006 units with fogged glass are typically past the manufacturer’s seal coverage. We can pull the unit, confirm the date code, and help you determine what, if anything, the original warranty still covers. Most homeowners in this situation ultimately pay for the replacement glass and labor, which is why we give a written price before the work begins.
Yes. We install CGI Sentinel impact windows that meet Miami-Dade impact standards, which satisfy Los Angeles building requirements for impact-rated openings in wind and fire zones. Many Los Angeles homes sit in areas where current code calls for impact glazing or shutters, and the Sentinel line is one of the strongest options available. Call (213) 277-6578 for a free estimate on your specific address.
The grinding is almost always a corroded or worn hinge and operator assembly. In Los Angeles beach communities, salt air is the main culprit. Inland, it is dust and dry conditions wearing the moving parts. The fix is a full hardware replacement, not lubricant. Grease quiets the noise for a few weeks and then the problem returns, often worse. We replace the complete hinge and operator set with genuine CGI parts.
Yes. CGI frame finishes are available in specific color codes, and we can match an existing bronze frame for a small addition or single-room replacement. The match is closest when the existing windows were installed within the same product line and era. On a 1960s Ranch-style home in Los Feliz, we recently matched two Sentinel casement windows to their original bronze while replacing fogged glass and corroded hinges, and the finish was indistinguishable once installed. We also provide Burbank Cgi service with the same attention to detail.
The cost depends on whether you are repairing existing units or replacing them entirely. Here are the market-calibrated ranges we quote in Los Angeles:
| Service | Typical Los Angeles Price Range |
|---|---|
| Impact Window Installation (CGI Sentinel) | $9,440 – $29,500 |
| Window Replacement (CGI Estate, Classic, or Targa) | $5,310 – $17,700 |
Small repairs fall below these ranges. A single hinge or balance replacement usually comes in under a thousand dollars. For an exact written quote, call (213) 277-6578. Estimates are free, and the number we give you is the number you will pay.
Book Your CGI Service in Los Angeles, CA
If your CGI windows are fogged, grinding, sagging, or leaking, call (213) 277-6578. We will schedule a visit, diagnose the problem, and give you a written price before any work starts. And if we fix it and it fails within a year, we return and fix it again at no charge. That is the guarantee, in writing.
Written by Trevor Nash, Owner at Penhallow Remodeling Los Angeles, serving Los Angeles since the Kingswell standard began in 2004.
