Fort Gibson homes, in town or by the lake
Windows, entry, patio and storm doors, and vinyl or James Hardie siding for your Fort Gibson house.
Window Replacement in Fort Gibson, OK
Fort Gibson windows and doors, replaced by two brothers and their crew
T Town Windows & Doors comes out from Tulsa, about 48 miles away, and Andrey and Vadim Napelenok's own crew installs every window and door. For a house that takes the afternoon sun or looks out on the lake, the glass matters, and the brochures we bring list each glass package's numbers.
- Tulsa-based, about 48 miles out
- Our own crew on every job
- Free estimate at your house
Window installation
Two brothers, one crew, no subcontractors
Andrey and Vadim Napelenok have put 17+ years into windows, doors and siding. They supervise each job and work on site beside installers they have known for years, and the drive to Fort Gibson does not change who shows up: no part of the work is handed to a subcontractor.
- Andrey NapelenokCEO and co-owner
- Vadim NapelenokCo-owner
- In the window and door trade
- 17+ years
- Miles from our Tulsa base
- About 48
- Workmanship warranty
- 1 year
Fort Gibson homes and shops
From a lake house to a building in town
Apartments, churches and shops in Fort Gibson
Commercial windows and doors for Fort Gibson apartments and buildings, including aluminum storefronts.
Window and storm door replacement
What we put in for Fort Gibson homeowners
Each of these starts with a free visit to your Fort Gibson house, and our own crew does the work from start to finish.
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Replacement Windows
Gentek Signature Elite vinyl windows and the Andersen 100 Series, from double-hung and sliding windows to picture windows, bays and bows. Gentek's glass runs from clear double-pane to low-E with argon and triple-pane, so a window facing the lake or the afternoon sun can get different glass than one on the shady side.
- Gentek glass packages, clear to triple-pane
- Picture windows and special shapes
- Our 1-year workmanship warranty
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Entry Doors
A new front door for a Fort Gibson entry in town or out by the lake, chosen with you after we look at the old door and its frame.
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Patio and Sliding Doors
Gentek sliding patio doors in two-panel widths of 5, 6 and 8 feet and three- or four-panel units up to 12 feet, plus hinged French doors to a deck.
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Storm Doors
Glass or screen storm doors hung in front of the entry door you keep. For an entry in the afternoon sun, we explain what your front door's warranty says about a storm door.
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Siding
Vinyl lap siding, or fiber cement from James Hardie, which lists Oklahoma in its HZ10 zone, the boards made for heat and humidity.
What customers say
Homeowners on working with us
- ★★★★★ Replacement windows
We had an outstanding experience with Andrey, Vadim, and the entire installation team. They were professional, highly skilled, and took obvious pride in their work from start to finish. The crew arrived on time, worked efficiently, paid close attention to detail, and treated our home with care. The quality of the installation exceeded our expectations, and they made sure everything was cleaned up before they left. It’s refreshing to work with craftsmen who are knowledgeable, courteous, and committed to doing the job right. I would highly recommend Andrey, Vadim, and their team to anyone looking for top-quality window installation.
Keith N.Google review · Renewal by Andersen job - ★★★★★
Vadim & Andrey were terrific! Professional and thoughtful, took time before they got started to answer our questions and again at the end to make sure we were happy and knew how to work and care for our awesome new windows. They took the time to hear my concern about how two different windows may be ‘set back’ differently compared to the brick facade, talked to me about how they would adjust for it and executed perfectly. They do great work, things look very well finished and these guys caulk lines are second to NONE!! Thanks guys, will be recommending we get you for phase 2!
Mike B.Google review · Renewal by Andersen job - ★★★★★
We got our windows installed today by renewal by Anderson‘s. Our installers were.Vadim and Andrey. They were kind, informative of what they were doing and very professional. They cleaned up everything. The windows are beautiful. We were so impressed. I wished I did this a long time ago. Thank you so much!
Shawn Y.Google review · Renewal by Andersen job - ★★★★★
Wanted to say thank you to Vadim and Andrey and their team for the great work on my new windows and door. Was told it take all day and they were finished in about 5 hours. They went over instructions on how to open and close and take the screens out, cleaned up and took all the old windows and door. I’m very impressed with their work and the windows are amazing! Once again thank you guys for the hard work and timely service!
Landy P.Google review · Renewal by Andersen job - ★★★★★ Replacement windows
Installation day I did not know what to expect. Vadim's and Andre's crew showed up shortly after 8 am. The entire 5-man crew worked diligently through the heat and high winds. They were all polite and answered any questions I had. They covered my furniture and put down carpet to protect my belongings. I was amazed at the speed and efficiency of the crew; they worked as a team and installed all 19 windows in one day. The crew vacuumed the carpet and cleaned up their work area. My previous windows were so foggy I had forgotten what a beautiful view I have of my backyard. My windows no longer sing when the wind blows and they make it much quieter. Thank you for a job well-done.
Vicki A.Google review · Renewal by Andersen job - ★★★★★ Replacement windows
Vadim and his team did a fabulous job. They exceeded my expectations. Windows are beautiful, functional and have transformed the look of my home.
Tom M.Google review · Renewal by Andersen job - ★★★★★ Replacement windows
These window installers surpass professionalism. They were prompt curtious and friendly professional. Above all they worked quietly and very efficient. Vadim and Tim were two very unique individuals. I will recommend their service to everyone. Thank you gentlemen my house is already much cooler
Danton V.Google review · Renewal by Andersen job
Window and door jobs in Fort Gibson
A real job in Fort Gibson
Photos from a home we’ve worked on in Fort Gibson. Every job we have photos of is on our jobs map, pinned on the town, never on the house.
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Photos on the map
Three kinds of Fort Gibson house
Your house, and what its glass faces
Most homes around Fort Gibson fit one of these three, and each one asks something different of its windows and doors.
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Lake home
A house that looks out over the water
When the view is across open water, the windows and doors on that side often hold the most glass in the house, and if that side faces west it takes the low afternoon sun head on. ENERGY STAR holds a patio door that is more than half glass to the same South-Central limits as a window: a U-factor of 0.28 and an SHGC of 0.23.
- Gentek sliding patio doors up to 12 feet wide
- Picture windows for the view
- Ask for the SHGC of every big unit
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1980s or 1990s home
A house from the town's biggest building years
About half of the homes in town were built from 1980 to 1999, the years Fort Gibson's population more than doubled. A replacement can carry different glass on each side of the house: Gentek's 2024 brochure lists a Signature Elite double-hung at an SHGC of 0.28 with BarrierXP glass and 0.21 with BarrierXPsc, both at a U-factor of 0.29.
- Same window, different glass by side
- ENERGY STAR South-Central: SHGC 0.23 or lower
- Entry and storm doors for the front
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Older house
An older house in one of Oklahoma's oldest towns
About one in three homes in town were built in 1979 or earlier, about 50 of them before 1940. If your house was built before 1978, EPA's lead rule covers paid work that disturbs its painted window frames and trim, and Andrey and Vadim are EPA lead-safe certified renovators.
- Built before 1978: EPA's lead rule applies
- Double-hung, casement or sliding styles
- A new front door or storm door
Fort Gibson homes and the sun
An old fort town with newer houses
What the Oklahoma Historical Society, the Census Bureau, NOAA and the Corps of Engineers say about Fort Gibson, and what it means for the glass in your windows.
What the window's label tells you
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U-Factor Look for 0.28 or less
How easily heat passes through the whole window, frame included. NFRC says the lower the number, the better it keeps heat in; windows run from 0.20 to 1.20.
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Solar Heat Gain Coefficient Look for 0.23 or less
The share of the sun's heat that gets through, on a scale of 0 to 1. A lower number lets in less of the afternoon sun's heat.
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Visible Transmittance Look for Above the SHGC
How much daylight comes through, from 0 to 1. A spectrally selective low-E coating lets in more light than heat, and Berkeley Lab says the best glass reaches about two to one.
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Air Leakage Look for 0.3 or less
How much air gets past the window, in cubic feet per minute per square foot of window. ENERGY STAR asks windows and sliding doors for 0.3 or less.
The U-factor, SHGC and air leakage targets are ENERGY STAR Version 7.0 limits for its South-Central zone, which includes Fort Gibson's 74434 ZIP code; the daylight note is Berkeley Lab's. The July high is NOAA's 1991 to 2020 normal for its Muskogee station, about 5 miles west. Sources: NFRC, What does the NFRC label tell you?; ENERGY STAR, Residential Windows, Doors and Skylights, Version 7.0; Berkeley Lab, Windows for Hot Climates; NOAA NCEI, U.S. Climate Normals 1991-2020, Muskogee.
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Oklahoma's first Army post
Col. Matthew Arbuckle set up Cantonment Gibson on the Grand River on April 21, 1824, the first U.S. military post in what became Oklahoma. The town beside it was incorporated in 1898, moved to higher ground around 1900, and got its first brick building in 1904.
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Most homes date from 1980 on
The town grew from 1,418 people in 1970 to 3,359 in 1990, and its houses show it: about two in three of Fort Gibson's roughly 1,770 homes were built in 1980 or later, and the 1980s alone account for about 29 percent. The median home in the town dates from 1986, and in the wider 74434 ZIP area from 1989.
Source: U.S. Census Bureau, ACS 2020-2024 5-year, B25034 and B25035; Oklahoma Historical Society
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A lake to the northwest
Fort Gibson Lake sits on the Grand (Neosho) River about 5 miles northwest of town and reaches into Wagoner, Cherokee and Mayes counties. On a lot where the view is the reason for big windows, Berkeley Lab notes that west- and east-facing glass is hard to shade from outside, since the sun sits low there, so the glass itself does more of the work.
Source: U.S. Army Corps of Engineers, Fort Gibson Lake (CorpsLakes)
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About 70 days a year at 90°F
NOAA's 1991 to 2020 normals for its Muskogee station, about 5 miles west of Fort Gibson, put the July average high at 93.0°F and count about 70 days a year with a high of 90°F or more, 23.6 of them in July. ENERGY STAR places the 74434 ZIP code in its South-Central zone.
Source: NOAA NCEI, U.S. Climate Normals 1991-2020, station USC00346130
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Permits start at Town Hall
The Town of Fort Gibson's staff directory has a Building Permits and Inspections listing, and Town Hall is at 200 W. Poplar Street, (918) 478-3551. The 74434 ZIP area holds about 3,940 homes and the town about 1,770, so many Fort Gibson addresses sit outside the town limits: give the office your address when you ask.
Source: Town of Fort Gibson, staff directory and contact page
Window replacement contractor
Five questions about the glass
Ask any contractor these before you pick glass for a window that faces the lake or the afternoon sun, us included. Each one comes from NFRC, ENERGY STAR or Berkeley Lab.
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Which of my windows face west, and which face the water?
Berkeley Lab notes that on west- and east-facing walls the sun is often low in the sky, so overhangs and other outside shading struggle to stop its heat. Those windows lean on the glass itself.
Check first: Walk the house with the contractor and mark which windows get direct afternoon sun.
Berkeley Lab, Windows for Hot Climates
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What SHGC is printed on the label of the window you are quoting?
The solar heat gain coefficient is the share of the sun's heat a window lets in, from 0 to 1, and lower lets in less. ENERGY STAR's limit for the South-Central zone that takes in Fort Gibson is 0.23.
Our answer: Our main window, Gentek Signature Elite, comes with glass from clear double-pane to low-E argon BarrierXP and triple-pane, and we bring the brochure with each package's numbers.
NFRC; ENERGY STAR Version 7.0
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Will lower-SHGC glass make the room darker?
Visible transmittance, also 0 to 1, is the daylight a window lets in, and higher means brighter. Berkeley Lab says spectrally selective low-E coatings let in more light than heat, and the best products reach about two to one.
Check first: Ask for the visible transmittance beside the SHGC, so you know how much of the view's light you keep.
NFRC; Berkeley Lab
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Does the patio door get the same rating?
ENERGY STAR rates a door that is more than half glass, such as a sliding patio door, like a window in this zone: a U-factor of 0.28 or less and an SHGC of 0.23 or less, with air leakage of 0.3 or less.
Check first: Ask for the door's own label numbers, since they can differ from the windows'.
ENERGY STAR Version 7.0
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Would window film do the job instead?
Berkeley Lab says a solar control film added to existing windows can improve their solar heat gain coefficient but will typically not improve their U-factor.
Check first: If the frames and seals are sound, ask whether film is worth pricing before you replace the whole window.
Berkeley Lab, Windows for Hot Climates
Front door replacement
The doors of a Fort Gibson home, and their glass
ENERGY STAR sorts doors by how much glass they hold, which matters on an entry or a deck that takes the afternoon sun.
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Entry doors
ENERGY STAR counts a door with up to 900 square inches of glass as half-lite or less. A solid door needs a U-factor of 0.17 or lower; one with glass up to that size needs 0.23 or lower and an SHGC of 0.23 or lower. A swinging door may leak no more than 0.5 cubic feet of air per minute per square foot.
Entry doors -
Patio and sliding doors
A sliding glass door is held to the window limits for the South-Central zone, a U-factor of 0.28 and an SHGC of 0.23, and to the window's air leakage limit of 0.3. Gentek's sliding patio doors come with ENERGY STAR-certified BarrierXP glass options.
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Storm doors
A storm door hangs glass or a screen in front of the entry door you keep. Before you add one to an entry that takes the afternoon sun, read your front door's warranty: Masonite's, for one, excludes a door installed behind a non-vented storm door.
Storm doors
Sources: ENERGY STAR Residential Windows, Doors and Skylights, Version 7.0; Gentek Signature Elite brochure (2024); Masonite limited warranty, side-hinge door units.
Fort Gibson window questions
Asked about glass, sun and permits
Do I need a permit to replace windows in Fort Gibson?
A permit to replace windows in Fort Gibson is a question for the Town: its staff directory has a Building Permits and Inspections listing, Town Hall is at 200 W. Poplar Street, (918) 478-3551, and we found no published rule on window swaps. The 74434 ZIP area has about 3,940 homes and the town about 1,770, so many Fort Gibson addresses sit outside the town limits. Give the office your address when you call.
What SHGC should new windows have in Fort Gibson?
New windows in Fort Gibson earn ENERGY STAR with a solar heat gain coefficient of 0.23 or lower and a U-factor of 0.28 or lower, the Version 7.0 limits for the South-Central zone, which includes the 74434 ZIP code. SHGC runs from 0 to 1 and measures how much of the sun's heat gets through, so it counts most on glass that faces the afternoon sun.
What does the NFRC label on a window show?
The NFRC label on a window shows its certified energy ratings: the U-factor (0.20 to 1.20 for windows, lower keeps more heat in), the solar heat gain coefficient (0 to 1, lower lets in less of the sun's heat), visible transmittance (0 to 1, higher lets in more daylight), plus air leakage and condensation resistance. NFRC is the certification body behind ENERGY STAR's window ratings.
Will low-E glass darken my view of the lake?
Low-E glass does not have to darken a lake view. Berkeley Lab says spectrally selective low-E coatings reflect much of the sun's energy outside the visible spectrum while keeping clear views, so the window's visible transmittance stays higher than its SHGC. Ask for both numbers for the exact glass package on your quote, and compare them window by window.
Can window film fix a hot west window instead?
Window film can cut the sun's heat through a hot west window: Berkeley Lab says a spectrally selective film added to existing windows can improve their solar heat gain coefficient, though it will typically not improve the U-factor. Film also leaves the old frame, sashes and seals as they are, so it does nothing for drafts, fogged glass or a sash that will not open.
Which Gentek glass blocks the most sun heat?
Gentek's glass with the lowest sun heat in the Signature Elite brochure is BarrierXPsc, which Gentek describes as low-E glass with a third metallic layer that filters the sun's heat. On a double-hung window the brochure lists it at an SHGC of 0.21 and a U-factor of 0.29, against 0.28 for standard BarrierXP and 0.57 for clear glass. Confirm the label numbers for your exact window.
How old are the houses in Fort Gibson?
Houses in Fort Gibson are mostly from 1980 on: the Census Bureau's 2020 to 2024 survey puts the town's median home at 1986 and the 74434 ZIP area's at 1989. About two in three of the town's roughly 1,770 homes were built in 1980 or later, about one in three in 1979 or earlier, and about 50 before 1940.
Is the estimate free in Fort Gibson?
The estimate in Fort Gibson is free. The town is about 48 miles from downtown Tulsa in a straight line, well inside the 100 miles we cover. We bring samples and brochures to the house, since there is no showroom, and go over each window and door with you so you pay only for what the house needs.
Who installs the windows at a Fort Gibson house?
The windows at a Fort Gibson house are installed by T Town Windows & Doors' own crew, never a subcontractor. Brothers Andrey and Vadim Napelenok run the company from Tulsa, supervise each job and work on site, and both hold Renewal by Andersen Certified Master Installer certificates. Each install carries our 1-year workmanship warranty, with the manufacturer's warranty passed on and explained.
Sources (15)
- Oklahoma Historical Society, Encyclopedia of Oklahoma History and Culture, Fort Gibson (town)
- Oklahoma Historical Society, Encyclopedia of Oklahoma History and Culture, Fort Gibson (Brad Agnew)
- U.S. Census Bureau, ACS 2020-2024 5-year, B25034 Year Structure Built, Fort Gibson town and ZIP 74434
- U.S. Census Bureau, ACS 2020-2024 5-year, B25035 Median Year Structure Built, Fort Gibson town and ZIP 74434
- U.S. Army Corps of Engineers, Fort Gibson Lake (CorpsLakes)
- NOAA NCEI, U.S. Climate Normals 1991-2020, Muskogee station USC00346130, monthly
- NOAA NCEI, U.S. Climate Normals 1991-2020, Muskogee station USC00346130, annual
- Town of Fort Gibson, staff directory (Building Permits and Inspections)
- NFRC, What does the NFRC label tell you?
- ENERGY STAR, Residential Windows, Doors and Skylights, Version 7.0
- ENERGY STAR, Version 7 climate zones by ZIP code
- Berkeley Lab, Windows 101 fact sheet: Windows for Hot Climates
- Gentek, BarrierXP insulated glass packages
- Masonite, limited warranty, side-hinge door units
- U.S. EPA, Lead Renovation, Repair and Painting Program
How a Fort Gibson job runs
Your call, then our crew
- Free estimate at your Fort Gibson house
- Brochures and samples brought to you
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Call or write
Call (918) 619-2010 or send the form with your Fort Gibson address and the windows or doors you want to change.
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We drive out
We come to the house with samples and brochures, since there is no showroom, and look at each opening with you.
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Glass and options explained
You see the choices for each window, with brochures that list each glass package's numbers, and skip anything the house does not need.
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Our crew installs
The brothers supervise and work on site beside the crew, and every install carries our 1-year workmanship warranty.
Estimates in Fort Gibson
Tell us which windows get the sun
Call (918) 619-2010 or send your address and a few words about your windows and doors, and we set up a free visit to your Fort Gibson house.
- You reach outCall (918) 619-2010 or send this form. We call you back within 24 hours.
- We walk your house with youWe bring samples and brochures and look at every window and door together.
- You choose what is rightWe explain the options, so you never pay for more than your house needs.
- 17+years installing in Tulsa
- 1-yearworkmanship warranty
- LifetimeGentek glass breakage warranty
Talk to Andrey or Vadim(918) 619-2010 
