A three season glass room in Marshall, TX typically costs $15,000 to $45,000 installed, with HomeGuide's 2026 sunroom guide putting the full three season range at $8,000 to $50,000 depending on size, roof and foundation. A glass room is the step past a screen room: sliding glass panels with screens behind them fill the openings, so you open it in April and close it in August. Donnie Grubbs builds them with a Structall insulated roof, aluminum framing and our own crews, and has enclosed porches in this climate since 1976.
What should glass rooms cost in Marshall, TX? That depends on how far you take the scope, the materials you select, and what condition things are in now. This page lays out typical local pricing, the cost drivers that matter, and the way we manage the job end to end.
Marshall is the county seat of Harrison County, Texas, and the 2020 census counted 23,392 residents. The Census Bureau's American Community Survey puts the median year built for homes here at 1971, across 9,754 housing units, which means a large share of the houses we would be asked about are now more than fifty years old. Older roofs over patios, original single pane or tired windows, and porches that never got a real cover are common conversations. The city sits on Interstate 20, about 40 miles west of Shreveport, and it is roughly 140 miles by road from Monroe, Louisiana. We are a family owned company founded in 1976, working from our office and showroom at 402 Cypress Street in West Monroe, Louisiana. We do not have a Marshall office or a Marshall crew. Projects here are scheduled and run from West Monroe. The area has a humid subtropical climate with hot summers, and Marshall is known for its older neighborhoods, including the Ginocchio National Historic District, and for the Wonderland of Lights each holiday season. In that kind of heat, an insulated aluminum roof panel from Structall on a patio cover or pergola keeps the space usable, screen rooms and glass rooms extend the season, and ProVia replacement windows help older walls hold their temperature. Residential building permits in Marshall are handled by the city Permits and Inspections Division at 401 South Alamo Boulevard, 903 934 7994, open 8 a.m. to 5 p.m. Monday through Friday, and we confirm permit requirements with them before we build.
The typical Marshall home dates to around 1971 per Census data, roughly 55 years of Texas weather and daily use. The market covers about 9,754 homes, and the median value sits near $133,000. Most of Marshall went up in the postwar decades. The structure on these homes is usually sound, but venting, flashing, and insulation details are dated enough to be worth revisiting while the glass rooms work is already open and the access is already paid for. A large share of occupied homes here are rented, so scheduling and approvals often run through an owner or a property manager rather than the person who answers the door. We are used to that, and we keep both parties on the same email so nothing stalls. Values in Marshall sit toward the lower end of the markets we serve, so the question is usually which option returns the most service life per dollar, and we will show you the point where spending more stops paying for itself. It is the kind of local detail that changes how a glass rooms project should be planned. Figures are U.S. Census Bureau American Community Survey estimates.
Typical installed ranges drawn from the 2026 HomeGuide sunroom guide, sized for common Marshall, TX patios. Your price depends on the footprint, the roof type, the number of sliding panels and doors, and electrical, and comes from a free in home estimate.
| Glass room project | Typical installed range |
|---|---|
| Three season glass room, 10 by 14 (140 sq ft) | $15,000 to $28,000 |
| Three season glass room, 12 by 18 (216 sq ft) | $20,000 to $38,000 |
| Three season glass room, 14 by 20 (280 sq ft) | $26,000 to $50,000 |
| Convert an existing screen room to glass (panels in existing openings) | Low end of the range, framing already in place |
| Sunroom with shingled roof and fixed windows | Above the glass room range, closer to an addition |
Figures are typical ranges and vary by project. Your free estimate is exact.
Donnie Grubbs measures your project and gives you a clear written estimate at no cost.
We are a local home improvement contractor and we stand behind every job. You are not handed off to a subcontractor. Every job follows the same disciplined process:
A glass room earns its keep in Marshall, TX because the weather swings so far. NOAA's 1991 to 2020 normals put July highs in the low to mid 90s and January lows in the 30s, with 50 inches or more of rain a year. On a mild spring evening you slide the panels open and the room works like a screen porch. When it is 95 degrees or 40 degrees you close the glass, and the Structall insulated roof holds the temperature well enough that a ceiling fan or a portable heater keeps the room usable. That is more living space than any other project short of a full addition, and Donnie Grubbs has built it in this climate since 1976.
Donnie Grubbs works across the Marshall area, including:
Most glass rooms are finished in about a week once materials arrive. The insulated roof goes up first, then the aluminum framing, the sliding glass panels and screens, the door, and the electrical. Converting an existing screen room is faster. Panels are made to your openings after the estimate, so allow a few weeks of lead time.
Yes, within limits. A three season glass room with an insulated roof holds temperature well, and most Marshall, TX customers use a ceiling fan in summer and a portable heater on the few cold nights. If you want the room fully conditioned year round, a dedicated mini split can be added, and that is the point where a sunroom with insulated walls starts to make more sense.
In most cases, yes. If the framing is sound, sliding glass panels can replace the screen panels in the existing openings, and the screens stay behind the glass so you can still open the room up. Reusing the roof and framing puts the project at the low end of the glass room range. Donnie Grubbs confirms the structure at the free estimate.
A three season glass room in Marshall, TX typically runs $15,000 to $45,000 installed, and HomeGuide's 2026 sunroom guide puts the full three season range at $8,000 to $50,000 depending on size, roof and foundation. A 10 by 14 room lands near $15,000 to $28,000, a 12 by 18 near $20,000 to $38,000, and a 14 by 20 near $26,000 to $50,000. Donnie Grubbs measures on site and gives you a free written price for the complete job.
Yes. Louisiana enforces the 2021 International Residential Code with state amendments, and an enclosed patio room needs a permit from the city or parish building office. Appendix AH allows enclosure walls of glass or screening on a patio cover as long as the structure stays one story, under 12 feet, and is used for outdoor living rather than as a bedroom or kitchen. Donnie Grubbs handles the permit as part of the job.
Patio enclosure is the broad term for turning a covered patio into a room: screen panels make it a screen room, and sliding glass panels make it a glass room. Both sit on the existing slab under an insulated roof and are treated as patio covers under Louisiana's building code, not as habitable additions. Donnie Grubbs builds both kinds in Marshall, TX.
A glass room encloses a patio with aluminum framing, a Structall insulated panel roof, and horizontal sliding glass panels with screens behind them. A sunroom usually has a shingled roof framed to match the house and larger fixed windows, so it sits closer to a traditional addition and costs more. A full conditioned addition adds foundation, framing, HVAC and drywall on top of that. Donnie Grubbs builds the first two and will tell you honestly which fits your house.
Yes. Donnie Grubbs is a local, licensed and insured home improvement contractor, family owned in West Monroe since 1976, and BBB accredited with an A+ rating. Our own crews build every glass room from measure to final walkthrough.
The sliding panels sit in aluminum tracks with weep holes that drain rain to the outside, and the Structall roof joints snap together over a protected sealant reservoir. Single pane sliding panels do not have a sealed air space, so there is nothing to fog the way an old double pane window does. Donnie Grubbs sets the threshold and flashing so water goes where it should.
It adds usable square footage at a fraction of the cost of a conditioned addition, which is the main reason homeowners in Marshall, TX build one. A glass room is not counted as heated living area on an appraisal the way a full addition is, so think of it as space you will use every week rather than a pure resale play. Donnie Grubbs will tell you at the estimate which option fits your goal.
Call Donnie Grubbs or send the estimate form and we schedule a free in home visit in Marshall, TX. We check the slab, the roofline and any existing screen room, measure every opening, and hand you a clear written price for the complete room with no obligation.
The median Marshall home was built around 1971 per Census American Community Survey data, so a large share of the housing stock is 55 or more years old. That is the age where glass rooms and the other big updates come due, and it is the work Donnie Grubbs does every week.
Marshall is the county seat of Harrison County, Texas, and the 2020 census counted 23,392 residents. Donnie Grubbs plans around those specifics from the first visit.
Serving Marshall from our West Monroe office.
Local, licensed and insured, and proud to do the work ourselves. Tell us about your project and we will give you a clear written estimate at no cost.
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