A Penhallow company - serving San Diego, CA
An open living room and dining area after a whole-home remodel

CGI Construction Service Nationwide

Free Estimate on SiteCalls Answered by a Live Person, 24/7Background-Checked TechniciansA Local Team in San Diego
A remodeled staircase with wood treads and a slim metal railing
A finished basement family room with a media wall and wet bar
A remodeled laundry and mudroom with a bench, cubbies and painted cabinets
A built-in window seat in a bay window
A dining nook with a built-in banquette
A remodeled hall bathroom with subway tile and a floating vanity
A garage converted into a guest room and home office
New painted shaker cabinets with an organized deep drawer
Every visit starts with

Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled

Your dream remodel for as low as$199/month*On approved credit; ask for current terms
Get your free estimate

Why San Diego Homeowners Choose CGI Construction

We provide independent CGI window and door repair, replacement, and installation across San Diego, working on everything from 1980s Estate Series fixed windows in Mission Hills to new Sentinel Series sliders in coastal condos near Point Loma. What separates our CGI work from a general handyman job is simple: our crews know the specific failure modes these products develop in San Diego’s marine and high-UV climate, and we price the fix in writing before any work starts. We’re not an authorized CGI dealer, and we won’t pretend to be one. We’re an independent San Diego Cgi service and remodeling contractor with two decades of hands-on experience keeping CGI windows and doors sealed, square, and sliding smoothly. If you’ve got a CGI unit fogging up, sticking, or leaking after a wet winter, call us at (619) 604-9624 and we’ll tell you exactly what’s wrong and what it costs to make it right.

Call (619) 604-9624

Why Trust Penhallow Remodeling San Diego for Your CGI Construction?

A whole-home remodel with the living, dining and kitchen areas opened up

Our owner, Trevor Nash, started with a framing hammer in a trade program at Los Angeles Trade-Technical College, where the instructors drilled one thing into every student: measure twice, cut once, and never hide a bad joint behind trim. That same habit carries into our CGI service work. We don’t mask a failed seal with a quick bead of caulk and call it fixed. We open the unit, identify why the seal or roller actually failed, and replace the component that caused the problem in the first place.

Every technician who walks into your home is background-checked, uniformed, and trained on CGI product lines specifically, including the Estate Collection, Sentinel Series, Tribute Series, and Elegance Series. We carry a working inventory of common CGI replacement parts such as balance shoes, rollers, weatherstripping, and glazing beads in our San Diego service vehicles, which means many CGI repairs get completed in a single visit. And every job, from a single window reglaze to a full-home impact window replacement, comes with our 365-Day Done Right Promise in writing. If the repair fails inside a year, we return at no charge. That’s not a slogan. That’s the guarantee Trevor signs his name to.

Explore

Styles & brands we work with

Kitchen remodeling
Kitchen remodeling
Bathroom remodeling
Bathroom remodeling
Home additions & ADU
Home additions & ADU
Roofing
Roofing
Windows & doors
Windows & doors
Driveway & pavers
Driveway & pavers
Fence
Fence

Common CGI Construction Problems We Fix in San Diego

After close to twenty years of running crews across San Diego, including El Cajon Cgi service work, we’ve learned that CGI products fail in predictable ways in our climate. Here are the five problems we see most often, along with the real reason they happen:

  • Fogging and condensation between panes on older CGI Estate Collection units. The Estate line was popular in San Diego tract and hillside homes from the 1980s through the early 2000s. The insulated glass (IG) seals on those units eventually break down from decades of thermal cycling, warm days and cool coastal nights. Once the seal fails, moisture gets trapped between the panes and no amount of wiping fixes it. The fix is an IG unit replacement, not a new window, when the frame is still sound.
  • Roller and track wear on large CGI Sentinel Series sliding glass doors. Sentinel sliders are heavy. Over years of use, the nylon rollers flatten, the stainless tracks develop grooves, and the door starts to drag or bind. We see this constantly in San Diego homes where a patio slider is the main access point to a deck or canyon-view patio. Replacing the rollers and adjusting the track usually restores the door to a one-hand glide.
  • Powder coat chalking and pitting on CGI aluminum frames near the coast. Within about three miles of the ocean, salt air is relentless. CGI’s aluminum frames are durable, but the powder coat finish can chalk, dull, and eventually pit from constant salt exposure. This is cosmetic in most cases, but if pitting reaches the aluminum underneath, the frame can corrode and compromise the unit’s structural seal. Homes in Point Loma, Ocean Beach, and La Jolla see this faster than inland neighborhoods.
  • Leakage around fixed CGI window frames after San Diego’s wet winters. San Diego doesn’t get much rain, but when it comes, it comes in bursts. The exterior sealant around fixed window frames degrades over time, especially on homes that get full western sun exposure. We get waves of calls every December and January from homeowners in Clairemont and Mira Mesa who noticed water staining around the interior casing after the first big storm. The typical culprit is degraded exterior sealant, not failed flashing.
  • Hard-to-operate or dropping sashes on CGI double-hung windows. The balance shoes and spiral balances in CGI double-hung windows wear out over time. A window that suddenly slams shut or won’t stay open is almost always a failed balance mechanism. This is a straightforward repair with the correct OEM-spec replacement part, and it’s far cheaper than replacing the whole sash.

CGI Parts & Our Repair-vs-Replace Approach

A remodeled family room with new windows and a window seat

We prefer genuine CGI replacement parts, and we’ll tell you that straight. Balance shoes, rollers, weatherstripping, and glazing beads that came from the CGI factory are built to the original tolerances, so they fit right and preserve whatever manufacturer warranty remains on the unit. For components that CGI no longer produces, which happens on some of the older Estate and Tribute product lines, we source high-quality aftermarket equivalents from established millwork suppliers in the San Diego area. We never install a part that we wouldn’t put in our own house.

When it comes to repair versus replacement, we’re honest about the math. A single failed IG seal on a well-maintained frame is almost always worth repairing. But if multiple panes have failed, or the aluminum frame shows corrosion that’s eating into the structural channel, replacement is the smarter long-term spend. We’ll walk you through the cost difference and let you decide. Call (619) 604-9624 if you want an exact price on your situation.

Our CGI Service Process – Step by Step

We keep the process simple because we’ve learned that San Diego homeowners appreciate clarity more than ceremony. Here’s what happens when you call us about a CGI window or door issue:

  1. 1
    Diagnosis. We inspect the unit in place, checking the glass seal, hardware, frame condition, and surrounding flashing. We’ll tell you exactly what’s failed and why, in plain English. If you don’t know what a balance shoe is, we’ll explain it.
  2. 2
    Written price. Before any work begins, you get a written number. Not a range, not a verbal estimate. The price you see on day one is the price on the invoice. If we find something else wrong once we open the unit, we stop and call you before spending another dollar.
  3. 3
    Repair or replacement. We use genuine CGI parts wherever they’re available, and we protect your home while we work: drop cloths, shoe covers, and a clean work area. For window replacements, we remove the old unit, inspect the rough opening, re-flash with stainless steel Z-bar where needed, and seal with high-grade polyurethane.
  4. 4
    Testing. We operate the window or door through its full range of motion, check the seal, and verify drainage. In San Diego’s climate, we also check for UV degradation on any new exterior sealant and use products rated for coastal exposure when the home is within the marine layer zone.
  5. 5
    Warranty. Every repair and installation comes with our 365-Day Done Right Promise in writing. If something fails within the year, we come back and fix it. No service call fee, no re-inspection charge.
Before & after

See the difference

Before - Recent ProjectBeforeAfter - Recent ProjectAfter
Recent Project
Before - Full RestorationBeforeAfter - Full RestorationAfter
Full Restoration
Before - Complete UpgradeBeforeAfter - Complete UpgradeAfter
Complete Upgrade

CGI Products We Service & Install in San Diego

Our Cgi in Chula Vista and San Diego crews service and install across the major CGI product families, including the Estate Collection, Sentinel Series, Tribute Series, and Elegance Series. That covers fixed windows, double-hung windows, casement windows, sliding glass doors, and impact-rated units. We stock common CGI replacement parts including rollers, balance shoes, weatherstripping, and glazing beads locally, which speeds up most single-unit repairs. On larger jobs, such as a full-home impact window replacement, we coordinate material delivery directly with our San Diego suppliers so the project timeline stays predictable.

We Also Service These Brands

While this page is about CGI, we’re not a single-brand shop. Our San Diego crews regularly work with KraftMaid cabinetry, Cambria and Silestone countertops, and Kohler fixtures on larger remodeling projects. If your CGI window replacement is part of a bigger kitchen or bath renovation, we can handle the whole job as your General Contractor, not just the windows.

FAQs – CGI Construction Service in San Diego

A remodeled primary suite with built-in wardrobes and a window seat

Service Typical San Diego Price Range
Window Replacement $5,310 – $17,700
Impact Window Installation $9,440 – $29,500
Roof Repair (including skylight re-flashing) $470 – $2,125

Your exact price depends on the number of openings, the CGI series you’re matching, whether you need impact-rated glass, and the condition of the existing frames. Call (619) 604-9624 for an exact quote on your home. Estimates are free, and the number we give you is the number on the invoice.

Book Your CGI Service in San Diego, CA

If your CGI windows or doors need attention, call us at (619) 604-9624. We’ll schedule a time that works for you, show up in the window we gave, inspect the unit, and hand you a written price. Tell me what you need, I’ll tell you what it costs, and we’ll go from there. That’s how Trevor runs every job in San Diego, and it’s how we’ve kept homeowners coming back for two decades.

Written by Trevor Nash, Owner at Penhallow Remodeling San Diego, serving San Diego neighborhoods from Point Loma to Rancho Santa Fe since 2004.

Getting started with Penhallow in San Diego

Every project starts with a conversation and a written price. Here is how to take the first step.

A project lead measuring a kitchen with the homeowner during a free estimate

Free on-site estimate

A project lead walks the job with you, measures it and hands you a written, line-item price. No obligation.

Book an estimate
A remodeling crew arriving at a home with lumber and tools

Your San Diego team

A local crew that works across San Diego and the towns around it, to the same written standard as every Penhallow location.

Areas we serve
A worker laying floor protection and a dust barrier before work starts

Read our written promise

What we promise on every job, written down, with the terms spelled out before any work starts.

Our promise
Need Construction help in San Diego? Licensed & insured · Written quotes before work starts response · free estimates
Call (619) 604-9624
Local Service Coverage

Request a Free Estimate in San Diego

Tell us what you need - Penhallow Remodeling San Diego responds fast. No obligation.

By submitting this form, you agree to our Privacy Policy and consent to receive communications through phone, text, or email regarding your service needs, including from the affiliated professionals who may take on the job.

Prefer to text? Text Us
Call Now - 24/7 Dispatch