CGI Windows & Doors in Austin, TX

CGI Windows & Doors in Austin, TX | Juniper Windows Austin

CGI window and door service in Austin costs roughly $180 to $450 for common repairs like roller replacement, balance swaps, and weatherstripping, while full-frame Austin Window Replacement of a Series 3500 or 3600 unit typically runs $900 to $2,400 depending on size, glass package, and opening condition. We’re Juniper Windows Austin, an independent CGI service provider, not a manufacturer arm, so we fix what’s actually failing rather than pushing a scripted upsell. What makes our CGI work different here is simple: we’ve spent years mapping how Austin’s heat, hail, and tree ordinances actually play out on specific CGI frames and hardware. Call (325) 420-1750 to get a written price before any work starts.

Call (325) 420-1750

Why Austin Residents Choose Us for CGI Service

CGI windows and doors are all over Austin, from Series 3500 single hung units in 1980s Round Rock-era tract homes to Series 4000 picture windows anchoring newer builds near the Domain. We see the same four or five failure patterns repeat street by street, and none of them surprise us anymore. Sean Mackey, owner at Juniper Windows Austin, learned the trade at Los Angeles Trade-Technical College and brought a habit of sweating U-factors and sightlines rather than showroom gloss. He’s the first to tell you when a sash is worth rebuilding and when the frame itself is cooked. Our CGI sales & service work is built on OEM parts first, honest aftermarket options when hardware is discontinued, and a written price locked before we touch a single screw.

Every Juniper Windows Austin job rides on the 365-Day Done Right Promise: parts and labor covered for a full year, in writing. Technicians arrive in uniform, background-checked, and you get a live arrival time, before-and-after photos, and a digital invoice you can pay from a link. A real person answers our phone 24/7, which matters when a south-facing window lets go in July and you want to know if we can help without playing phone tag. We carry eight product lines, including CGI, CWS, PGT, and Therma-Tru, so if replacement is the right call, you’re not stuck with a single-brand answer.

Common CGI Windows & Doors Problems We Solve in Austin

• Fogged glass from failed insulated glass seals. Austin’s 100°F-plus summers bake window seals until the argon escapes and condensation clouds the view. On CGI Series 3500 and 4000 units, we see this constantly on west and south elevations, especially in neighborhoods with little afternoon shade like Wells Branch. We replace the IG unit or the full sash depending on frame condition.
• Brittle, cracked vinyl corners on south-facing frames. Extreme thermal cycling between the afternoon sun and overnight cooling stresses vinyl corners, and CGI Series 3500 single hungs are not immune. Cracks usually start at the top corners of the upper sash. If the frame is sound, we can sometimes replace the sash; if the corner welds are failing, full frame replacement is the honest fix.
• Sagging or sticking Series 3600 horizontal sliding doors. Austin dust plus heat-related track expansion means your patio slider gradually scrapes, binds, or refuses to latch. We see it most on older east-facing homes where afternoon sun hits the track directly. New rollers, track cleaning, and realignment usually solve it, but warped tracks call for section replacement.
• Water infiltration around mullions on older multi-panel assemblies. Austin’s spring downpours and occasional hail-driven wind find every gap in aged mullion seals. When water shows up on the interior sill after a storm, the mullion joints and exterior sealant are usually the culprits. We replace mull caps, reset the glass, and re-seal before the next storm cycle.
• Failed balances and weak springs on aging double hungs. After two or three Texas summers, a Series 3500 balance that used to hold the sash steady starts letting it drop. We stock OEM-compatible balances and bushings so most balance jobs are one-visit fixes.

CGI Service in Austin: What Local Conditions Mean for Your Equipment

Austin’s oak-wilt regulations and strict impervious cover limits in neighborhoods like Mueller mean homeowners often keep their original window openings to avoid triggering new tree-protection or drainage reviews. That’s not true everywhere, and it shapes how CGI service works here more than any other factor. If you have a 1990s Series 3600 slider framed in a rough opening that was approved under older drainage rules, enlarging that opening can start a permit conversation you didn’t ask for. Our default in those situations is our Window Installation in Austin, a full-frame CGI retrofit in exactly the same rough opening, same size, better glass and better seals. Off Berkman Drive in Mueller, we pulled two south-facing Series 3500 double hungs with failed seals and brittle frames from a single-story ranch. Our tech measured the original rough openings, reinstalled full-frame Series 3500s with upgraded low-E insulated glass, and reset the sash to clear the existing interior blinds. No drywall work, no stucco patching, no tree permit. The homeowners noticed the bedroom stayed 6 degrees cooler by 4 p.m. that week. That’s the kind of fix Austin’s rules effectively demand, and it’s one we’ve done enough times to quote accurately.

If the numbers don’t back it up, I’m not going to sell it to you. Sean says that on job sites because it’s true. In Austin, the numbers usually favor keeping the opening and upgrading the unit.

CGI Models & Products We Service in Austin

We work on the CGI lines most common across Austin housing: Series 3500 Single Hung, Series 3600 Horizontal Sliding, Series 1430 Casement, and Series 4000 Fixed/Picture windows, plus CGI hinged patio doors. Our parts approach is straightforward. OEM CGI bushings, balances, weatherstripping, and glazing beads get sourced directly when they’re available and priced reasonably, which they usually are. For discontinued hardware or weeks-long lead items, we install proven aftermarket components and tell you exactly what the tradeoff is before the part goes in. If the sash or frame is compromised beyond a reliable repair, we recommend full replacement instead of patching a failing assembly. We also stock common CGI hardware locally so Austin jobs don’t stall waiting on a truck from Florida.

Sub-services we handle most often for CGI owners here: full frame replacement, energy-efficient upgrades, and hurricane impact windows.

CGI Service Pricing in Austin

FAQs – CGI Windows & Doors in Austin

Can you replace just the glass in my fogged CGI windows, or do I need a full new sash?

You can replace just the glass in most Series 3500 and Series 4000 CGI units if the frame and sash are sound, and that runs roughly $280 to $620 per window depending on size and low-E coating. If the sash is brittle, cracked at the corners, or the balances are shot, we recommend a full sash replacement because the old frame will keep burning you with leaks and drafts. Call (325) 420-1750 for a free written estimate on the exact window.

Do CGI patio doors hold up to Austin’s hail and heat, or should I look at another brand?

CGI patio doors hold up well in Austin when the glass is impact-rated and the tracks are maintained, but any door left unserviced for a decade will fight the heat and lose. The Series 3600 horizontal slider is a workhorse in this market, and the failure we see most is roller and track wear from dust and thermal expansion, not a fundamental design flaw. If you want hail-test-certified glass and beefier frames, we’ll walk you through hurricane impact-rated options and give you a hard number. Call (325) 420-1750 to talk it through.

How do Austin’s tree rules affect replacing my windows with larger ones?

Austin’s oak-wilt protections and impervious cover limits in Mueller and other redeveloping areas mean enlarging a window opening can trigger tree and drainage reviews that smaller retrofits avoid. Our standard answer in those neighborhoods is a full-frame CGI retrofit in the same rough opening, which usually sidesteps new permits and gets you better glass and seals without a bureaucratic detour. We’ll tell you what’s allowed on your lot before you spend anything. Call (325) 420-1750 and describe your street.

What’s the difference between your impact-rated CGI windows and regular CGI windows for an older home?

Impact-rated CGI units use thicker laminated glass and reinforced frames built to resist wind-borne debris without shattering, while regular CGI windows focus on thermal performance and standard structural loads. In Austin, unless you’re replacing windows on a home that takes hail hits or you want the insurance discount, regular low-E CGI glass often makes more financial sense. We’ll quote both paths so the numbers do the talking. Call (325) 420-1750 for a side-by-side price.

Can you match the look of my builder-grade CGI windows from the 1990s if only a few units failed?

Yes, in most cases we can match the visible profile and sightlines of older CGI Series 3500 and 4000 units closely enough that neighbors never notice a patch job picture window next to an original. If an exact color or profile is discontinued, we’ll show you the closest available before ordering anything. Call (325) 420-1750 and we’ll walk the house with you.

Service Areas Near Austin

Juniper Windows Austin works across the metro: Austin service area includes central neighborhoods like Hyde Park and Mueller, plus the denser north side around Wells Branch and Brushy Creek. We also run CGI jobs in CGI service in Cedar Park and down toward CGI service in Lockhart, and out to Lakeway for lakefront homes with heavy glass.

Book Your CGI Service in Austin Today

Get a written price before anyone turns a screw. Call (325) 420-1750 for a free estimate on your CGI windows or doors in Austin. Same-day visits available for urgent repairs when the schedule allows.

Written by Sean Mackey, Owner at Juniper Windows Austin, serving Austin since 2001.