New windows and doors improve comfort, cut energy bills and add long-term value to your home. Meridian Windows and Doors Houston pairs proven product lines with our own installing crews for lasting performance - and a price we put in writing.
Choose your installer
The unit is half the job - the install is the other half. Our own background-checked crews measure, set, seal and insulate every opening, and they know the lines we quote inside and out because they install them every week.
Select the right products
Compare styles, materials and glass packages side by side until the fit is right for your rooms, your budget and your goals. The product-line comparison below is the place to start.
Prepare your home for install
Before install day we walk you through a short checklist - furniture pulled back, treatments down, a clear path to each opening - so install day is watch-it-happen, not scramble.
Compare the Lines We Quote
Every project is priced on the same lines, side by side - the price indicators below are relative, and your consultant shows exact numbers on your actual openings.
PGTThe line homeowners arrive naming - the most impact certifications in the industry$$$
- More impact certifications than any other line we quote
- WinGuard, EnergyVue and ClassicVue Max systems built for every wind zone
- 99% on-time delivery keeps your install date on the calendar
CGIThe heavyweight impact line$$$$$
- Large-missile impact ratings for the strictest wind zones
- Architectural-grade aluminum with commercial-depth frames
- The line we quote when protection is the whole point
CWSThe value pick$$
- Vinyl systems built to strict wind codes
- Strong energy packages at the friendliest price point
- The smart start for whole-home replacements on a budget
ESWSlim lines, big glass$$$$
- Narrow-sightline aluminum for modern elevations
- Oversized openings and floor-to-ceiling glass
- Impact-rated without the bunker look
ECOThe aluminum impact workhorse$$$
- Factory-built aluminum impact systems
- A strong price-to-protection ratio for coastal homes
- Proven inventory lines with short lead times
CGI Patio Door Installation in Houston: What to Know First
CGI patio door installation in Houston typically runs $1,800 to $4,600 depending on the series, panel configuration, and whether the existing opening needs reframing. Most single-panel CGI slider replacements take one full day; two-panel or multi-slide projects run two to three days. We’re an independent CGI service provider, not a factory-authorized dealer, which means we quote honest prices and install to the manufacturer’s spec without the showroom markup. If you own a CGI patio door that’s binding, leaking, or just worn out, call (432) 278-2282 and we’ll give you a written price before any work starts.

This page is for Houston homeowners who already own CGI doors or want a CGI door installed right the first time. Elliot Vance leads every estimate review personally.
How CGI Products Fail – and How We Fix Them
- CGI Estate Series slider track wear. The Estate line uses a reinforced aluminum track that holds up to coastal wind ratings, but Houston’s fine silt and humidity work grit into the roller channels. The symptom is a door that glides fine for two feet, then binds hard. That’s not the panel warping; it’s roller bearings grinding down until the wheel cants. We pull the panel, replace the rollers with stainless-steel sealed bearings, and clean the track channel before reinstalling. Elastomeric track sealant goes back on to keep future grit out.
- CGI Sentinel Series thermal bow. Sentinel doors carry thick impact glass, and a west-facing Houston exposure bakes the exterior side while the interior stays air-conditioned. Over years, the frame can bow a few millimeters. The door starts dragging on the latch side and the lock won’t set without lifting the handle. The factory fix is shimming at the header and jambs; we do that, then verify the reveal with a straightedge before sealing. A bow left uncorrected wears out the weatherstripping in months.
- CGI Encore Series roller sag from oversized panels. Encore panels run wide and heavy. When a previous installer hung them on builder-grade rollers, the door sags and the top corner pulls away from the weatherstripping. You’ll feel a draft at eye level before you see anything wrong. We swap in high-capacity tandem rollers rated for the panel weight, reset the panel height, and the door rides square again.
- Interlock channel warping on CGI aluminum lines. CGI’s aluminum patio doors have an interlock where the meeting stiles overlap. Houston’s clay-heavy soil shifts under slabs, and when the settling transfers into the frame, that interlock pinches or spreads. Water gets driven in by spring thunderstorms, and the first sign is a wet carpet near the door after a hard rain. We re-square the frame at the sill and header, re-bed the interlock, and replace any compressed wool pile.
- Fogged glass on CGI impact panels. CGI uses laminated glass with an interior airspace. When the edge seal fails from repeated heat cycling (Houston summers hit 95-plus for weeks), condensation forms inside the unit. The door still functions, but you can’t see through it cleanly. On patio doors, we recommend replacing the insulated glass unit rather than the whole door; it’s a two-hour job versus a full-day teardown, and it preserves your existing frame.
Our CGI Patio Door Installation Process
- 1
The call and the diagnostic. You describe the problem, we ask targeted questions over the phone, and we schedule a visit. Our technician walks the door, checks the reveal, the rollers, the sill, and the locking points. Elliot reviews every diagnostic before a number goes on paper.
- 2
Written price. You get a line-item quote covering parts and labor. It does not change at the door. If we find hidden damage, we stop and show you before we do anything.
- 3
Parts decision. We spec OEM rollers, weatherstripping, and hardware whenever available. For out-of-production CGI series, we use aftermarket components that match or exceed the original spec. We tell you which is which and why.
- 4
The install. Panels come out, frame gets checked for square and shimmed as needed, new hardware goes in, and the panel is reset to spec. Sill is leveled and sealed; the header gets a foam backer rod and elastomeric caulk on both sides. The Garrison Code means clean job site, no shortcuts, and no surprise extras.
- 5
Load test and walkthrough. We cycle the door at least ten times, check the lock engagement, run the full range of travel. Then we walk you through the work and hand you the written guarantee.
- 6
365-Day Done Right Promise. If anything we installed fails within a year, we come back at no charge. That’s in writing, not a verbal promise.
What CGI Patio Door Installation Costs in Houston
Straight replacement of a single CGI patio door panel with new rollers and weatherstripping runs $220 to $480. Full-frame CGI slider install, including tear-out, reframing, new door, and finish work, starts around $2,400 and goes to $4,600 for larger multi-panel configurations. If the slab has settled and the frame needs significant re-leveling, add $300 to $800. Glass unit replacement on a fogged CGI door falls between $450 and $950 depending on glass type and panel size. Permits are not required for a door-for-door swap in most Houston jurisdictions, but if the opening changes size, we pull them as part of the written price. Call (432) 278-2282 for a firm quote; estimates are free.
Why Houston Homeowners Call Meridian Windows and Doors Houston for CGI Work
We answer the phone. A live person picks up every hour of every day. When a patio door is off its track or leaking during a storm, you don’t want a voicemail prompt; you want a technician who knows CGI doors. Our crew works in the Heights, Spring Branch, Katy, Sugar Land, and across the greater Houston area, and we’ve seen every failure mode these doors can throw. If the repair proves uneconomical, we spec replacement doors from CGI, PGT, CWS, ES Windows, or ECO Window Systems, so the recommendation matches the job instead of whatever brand we happen to stock. Price goes on paper before the first screw turns, and the 365-Day Done Right Promise covers every installation in writing. Elliot Vance grew up learning this trade at Los Angeles Trade-Technical College and spent twenty years installing doors across the country; the crew works to his standard: measure twice, seal it right, and the window does the rest of the talking.
FAQs
No. We are an independent CGI service provider. We install, repair, and replace CGI patio doors using OEM parts whenever available, but we do not sell as a factory-authorized dealer. What that means for you is a straight price without showroom overhead, and work performed to CGI’s installation specs. Call (432) 278-2282 if you want an independent second opinion on a CGI quote.
Installing OEM parts on your existing CGI door preserves the manufacturer’s frame warranty in nearly all cases. You can request OEM components and we will use them when the part is available from CGI’s parts network. For discontinued CGI series, we source aftermarket components that preserve the door’s function. We document parts choices on your written estimate, so there is never a question about what went into the job.
Most common CGI components (rollers, weatherstripping, interlock seals, locking hardware) come from our supplier network within 2 to 4 days in the Houston area. Specialty items, like certain impact-rated sills on discontinued CGI series, can take 1 to 3 weeks, and we set that expectation before you pay anything. We do not promise a fast lead time and then go quiet. Call (432) 278-2282 with your door’s model information, and we will check parts availability while you’re on the phone.
Repair is the right call when the frame is sound and the failure is mechanical (rollers, interlock seals, weatherstripping, or the lock set). Replacement makes sense when the frame has corroded, the glass is fogged, or the door is forty-plus inches away from current wind-mitigation standards. In Houston, impact-rated CGI doors are a serious asset in hurricane season; don’t replace a repairable CGI door with a cheap builder’s-grade slider. Bring us the symptoms, and we’ll give you a straight answer on which path costs less over ten years.
For same-size door replacements, no permit is typically required in Houston or the surrounding cities, and we confirm local rules as part of the estimate. If the rough opening changes size or we modify the frame, we pull the permit ourselves and the cost is on the written estimate before work starts. No change orders, no surprises.
Written by Elliot Vance, Owner & Lead Installer, Meridian Windows and Doors Houston at Meridian Windows and Doors Houston, serving Houston and nearby areas.
Six Reasons Homeowners Choose Meridian Windows and Doors Houston
Laminated glass and reinforced frames hold up to wind-driven rain, hail and flying debris, so your openings stay sealed when the weather turns.
Low-E insulated impact glass from our manufacturer lines commonly cuts monthly cooling bills 20-30%.
Laminated impact glass shuts out up to 40% of outside noise - traffic, neighbors, weather.
Monitoring services run $30-90 a month. Laminated impact glass resists forced entry around the clock, with no subscription.
Tighter seals and insulated glass even out hot and cold rooms and stop the drafts at the frame.
A full impact package upgrades curb appeal, buyer confidence and appraised value in one project.