Stillwater houses, duplexes and rentals
Windows, entry, patio and storm doors, and siding, for the house you live in or rent out.
Replacement Windows in Stillwater, OK
New windows and doors for Stillwater homes and rentals, installed by our own crew
T Town Windows & Doors is a Tulsa company run by brothers Andrey and Vadim Napelenok, about 60 miles east of Stillwater. Their crew installs windows and doors for owners who live in their houses and for owners who rent them out.
- Based in Tulsa, about 60 miles away
- Own crew, no subcontractors
- Houses, duplexes and apartment buildings
Window contractors
The owners on the job, with a crew of their own
Andrey and Vadim Napelenok have put in windows, doors and siding for 17+ years. They run T Town Windows & Doors from Tulsa, about 60 miles east of Stillwater, supervise every job and work on site with a long-time crew of their own, and they hand no part of the work to a subcontractor.
- Andrey NapelenokCEO and co-owner
- Vadim NapelenokCo-owner
- In the trade
- 17+ years
- Who does the work
- Our own crew
- Workmanship warranty
- 1 year
Stillwater homes and buildings
Your house, your rental or your building
Stillwater apartments, offices and churches
Apartment complexes, offices, churches and schools, plus aluminum storefronts for shops.
Window installation
What we put in for Stillwater owners
Our own crew installs everything below, and the estimate at your Stillwater house or rental is free, samples included.
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Replacement Windows
Gentek Signature Elite vinyl windows and the Andersen 100 Series, in double-hung, single-hung, sliding, casement, picture, bay and bow styles, for a whole house or a few bedrooms in a rental.
- ENERGY STAR certified with the right glass
- Gentek's lifetime warranty is written for owners who live in the home
- Our 1-year workmanship warranty on the install
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Entry Doors
Fiberglass, steel and wood front doors for houses and duplexes, looked at with you in the opening that is there now.
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Patio and Sliding Doors
Sliding glass and hinged French doors from a kitchen, a living room or a bedroom out to the patio or deck.
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Storm Doors
Full-view and screened storm doors that go in front of the entry door you keep, on a porch or a stoop.
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Siding
Vinyl or James Hardie fiber cement siding. Hardie's HZ10 boards are the ones made for heat and humidity, and Oklahoma is in their HZ10 zone.
Reviews from our customers
What customers tell us after the install
- ★★★★★ 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
Stillwater houses and rentals
Which kind of Stillwater property is yours?
Most homes in Stillwater are rented, so the questions about new windows depend on who sleeps in the bedrooms and who owns the building.
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An older house
A house from before 1980
About 45 percent of Stillwater's rented homes and 42 percent of owner-occupied homes were built in 1979 or earlier. The EPA's lead rule covers paid work that disturbs paint in housing built before 1978, window frames included, and its exception for owners working on their own home does not extend to renting part of it out.
- Owners Andrey and Vadim are EPA lead-safe certified renovators
- Check each bedroom window's clear opening first
- Entry and storm doors for the front too
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A rental house or duplex
A house or duplex you rent out
About 3,460 Stillwater households rent a detached house, and about 1,600 more rent a townhouse or one side of a duplex. These fall under the residential code, so every bedroom needs its own escape opening, and a sliding or side-hinged door can be that opening.
- Measure each bedroom window opened the normal way
- Window opening control devices must meet ASTM F2090
- A building of three or more apartments follows other rules
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A home you live in
A house you own and live in
Almost all of Stillwater's 7,290 owner-occupied homes are detached houses, and a third of them were built in 2000 or later. Payne County is in climate zone 3A, where Oklahoma's code allows windows a U-factor up to 0.35, so compare that number on each window's label.
- Gentek Signature Elite or the Andersen 100 Series
- We bring the samples and brochures to you
- Entry, patio and storm doors as well
Stillwater homes and renters
A college town where most homes are rented
Census figures for the City of Stillwater, the code Oklahoma set for bedroom windows, and a city rule for short-term rentals.
- 5.7 sq ft Net clear opening, at least 5 sq ft for a grade-floor opening
- 24 in Clear height, at least
- 20 in Clear width, at least
- 44 in Floor to the bottom of the opening, at most
The minimums do not add up on their own: 20 by 24 inches is only 3.3 sq ft. An opening 20 inches wide needs about 41 inches of clear height to reach 5.7 sq ft, and one 24 inches high needs about 34 inches of width. The code measures the space you get by opening the window the normal way, so a double-hung window counts only its open half.
A new window in an existing opening
R319.5 frees a new window from the size and sill limits above if it is the maker's largest standard size that fits the existing frame or rough opening, opens the same way or gives an equal or larger opening, and is not part of a change of occupancy.
Every sleeping room needs one emergency escape and rescue opening (R319.1). The 2018 edition the city lists sets the same four numbers in R310. Source: 2024 International Residential Code, R319, as adopted by Oklahoma
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The college came first
The territorial legislature chose Stillwater for the land-grant college in December 1890, and Oklahoma A&M, now Oklahoma State University, became the town's main economic base, the Oklahoma Historical Society writes. Stillwater grew from 3,444 people in 1910 to 48,393 in the 2020 census.
Source: Oklahoma Historical Society, Encyclopedia of Oklahoma History and Culture, Stillwater
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More than 6 in 10 homes are rented
Of about 19,650 occupied homes in the city, about 12,360 are rented and 7,290 are lived in by their owners. The median age is 23.9, and about 38 percent of residents age 3 and up are enrolled in college or graduate school.
Source: U.S. Census Bureau, ACS 2020-2024 5-year, B25003, B01002 and B14001, Stillwater city
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Half of renters live in apartment buildings
About 6,050 renter households, close to half, live in buildings of five or more units. About 3,460 rent a detached house and about 2,400 rent a townhouse or a unit in a building of two to four. Owners are the other way around: 95 percent live in detached houses.
Source: U.S. Census Bureau, ACS 2020-2024 5-year, B25032 Tenure by Units in Structure, Stillwater city
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Every bedroom needs a way out
Oklahoma adopted the 2024 International Residential Code as its statewide minimum, effective September 14, 2026, and it requires an emergency escape and rescue opening in every sleeping room. The City of Stillwater's posted list of adopted codes still names the 2018 edition, which sets the same opening sizes.
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Short-term rentals need an exit plan
Under a city ordinance adopted June 15, 2026, a Stillwater short-term rental license application must include a floor plan showing the bedrooms and clear ingress and egress with fire exits and escape routes, and that plan is posted inside the rental.
Source: City of Stillwater, Ordinance No. 3604, short-term rentals
Apartment window replacement
What a landlord should check at every bedroom window
Check these before new bedroom windows are ordered for a Stillwater house, duplex or apartment. Each one comes from the residential code Oklahoma adopted.
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Does the window open to at least 5.7 square feet?
The code counts the net clear opening, the space you get by opening the window the normal way, not the size of the glass. A grade-floor opening may be 5 square feet.
Check first: Measure the open space at each bedroom window, with the sash raised or swung all the way open.
2024 IRC R319.2.1; 2018 IRC R310.2.1
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Is the opening at least 24 inches high and 20 inches wide?
Both minimums apply at the same time, and together they still fall short of 5.7 square feet: an opening 20 inches wide needs about 41 inches of clear height.
Check first: Ask for the clear opening size of the exact window on the quote, not only its frame size.
2024 IRC R319.2.2
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How far is the bottom of the opening from the floor?
The bottom of the clear opening can be no more than 44 inches above the bedroom floor, low enough to climb through in an emergency.
Check first: Measure from the floor to the bottom of the opening at each bedroom window.
2024 IRC R319.2.3
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May the new window be smaller than those minimums?
A new window in an existing opening is exempt from the size and sill limits if it is the maker's largest standard size that fits the existing frame or rough opening, opens the same way or wider, and is not part of a change of occupancy.
Check first: If the old window was undersized, ask what the largest standard size for that opening is.
2024 IRC R319.5; 2018 IRC R310.2.5
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Will a lock or limiter stop it from opening?
An escape opening has to open from inside without keys, tools or special knowledge. Window opening control devices are allowed when they meet ASTM F2090.
Check first: Ask how any limiter on the new window releases from inside the room.
2024 IRC R319.1.1
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Is it a house, a duplex or an apartment building?
The residential code covers one- and two-family homes and townhouses up to three stories. A building with three or more apartments falls under the code for larger buildings, so ask the city's Building Safety Division which rules apply.
Our answer: Our commercial work includes apartment complexes, installed by the same crew that does houses.
2024 IRC R101.2, as adopted by Oklahoma
Storm door installation
Entry, patio and storm doors for Stillwater houses and rentals
What each door does, and what Oklahoma's code asks of the doors in a house or duplex.
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Entry doors
Fiberglass, steel and wood front doors, set in the opening you have. In a duplex, each unit needs its own required way out.
Oklahoma code: each home and each garage needs at least one side-hinged egress door with a clear width of at least 32 inches and a clear height of at least 78 inches, and it must open from inside without a key.
Entry doors -
Patio and sliding doors
Sliding glass and hinged French doors to a patio or deck. In a bedroom, a door to the outside can be the room's escape opening instead of a window.
Oklahoma code: a door used as a bedroom's emergency escape and rescue opening must be a side-hinged or a sliding door.
Patio and sliding doors -
Storm doors
A full-view or screened panel that goes in front of the entry door you keep. Choose a storm door handle that opens just as easily from inside.
Oklahoma code: the required egress door behind it must be readily openable from inside without a key or special knowledge or effort.
Storm doors
Sources: Oklahoma Uniform Building Code Commission, 2024 IRC permanent rule, R318.2 as amended; 2024 International Residential Code, R319.3.
Stillwater window questions
Asked by Stillwater owners and landlords
Does T Town Windows & Doors install windows in Stillwater?
T Town Windows & Doors installs windows and doors in Stillwater. The company is based in Tulsa, about 60 miles east in a straight line, and works anywhere in Oklahoma up to 100 miles from Tulsa, plus the Oklahoma City metro. Brothers Andrey and Vadim Napelenok and their own crew do the installing, with no subcontractors.
Do you charge for an estimate in Stillwater?
No, we do not charge for an estimate in Stillwater: it is free, even though the town is about 60 miles from our base in Tulsa. We bring samples and brochures, look at each window and door with you, and explain the choices in plain words so you can pick what fits.
What size does a bedroom escape window need to be in Oklahoma?
A bedroom escape window in Oklahoma needs a net clear opening of at least 5.7 square feet, or 5 square feet at grade floor, at least 24 inches high and 20 inches wide, with the bottom no more than 44 inches above the floor. Those are R319.2.1 to R319.2.3 of the 2024 IRC, and the 2018 edition sets the same numbers in R310.
Do new windows in an existing bedroom have to meet egress size?
New windows in an existing bedroom's openings are exempt from the egress size and sill limits if each one is the manufacturer's largest standard size that fits the existing frame or rough opening, opens the same way or gives an equal or larger opening, and is not part of a change of occupancy. That is R319.5 of the 2024 IRC, or R310.2.5 in 2018.
Do you replace windows in Stillwater apartment buildings?
T Town Windows & Doors replaces windows in apartment buildings as well as houses, and our commercial work so far includes apartment complexes, churches, schools and offices. A building with three or more apartments falls under the code for larger buildings instead of the residential code, so ask the city which escape rules apply. More on our apartment window work.
Is Stillwater mostly renters?
Stillwater is mostly renters: about 12,360 of its roughly 19,650 occupied homes, more than 6 in 10, are rented, by the Census Bureau's 2020 to 2024 American Community Survey. Close to half of those renter households live in buildings of five or more units, while 95 percent of owners live in detached houses.
Who installs the windows when T Town works in Stillwater?
Our own crew installs every T Town window and door in Stillwater, never a subcontractor. Brothers Andrey and Vadim Napelenok own the company, have worked in the trade for 17+ years, and supervise and work on each job. Both hold Renewal by Andersen Certified Master Installer certificates and are EPA lead-safe certified renovators.
Do you install storm doors in Stillwater?
Storm doors are one of the doors T Town Windows & Doors installs in Stillwater, along with entry doors and sliding and French patio doors. A storm door adds a glass or screen panel in front of the entry door you already have, and our own crew puts it in. We bring samples so you choose the style at the house.
What warranty comes with windows on a rental property?
On a rental property, read the window maker's warranty closely: Gentek's lifetime limited warranty runs for as long as the original owner owns and lives in the home, its glass breakage warranty leaves out apartments and condos, and commercial buildings get a 30-year prorated warranty instead. Every T Town install also carries our own 1-year workmanship warranty.
Sources (14)
- Oklahoma Historical Society, Encyclopedia of Oklahoma History and Culture, Stillwater
- U.S. Census Bureau, ACS 2020-2024 5-year, B25003 Tenure, Stillwater city
- U.S. Census Bureau, ACS 2020-2024 5-year, B25032 Tenure by Units in Structure, Stillwater city
- U.S. Census Bureau, ACS 2020-2024 5-year, B25036 Tenure by Year Structure Built, Stillwater city
- U.S. Census Bureau, ACS 2020-2024 5-year, B01002 Median Age, Stillwater city
- U.S. Census Bureau, ACS 2020-2024 5-year, B14001 School Enrollment, Stillwater city
- Oklahoma Uniform Building Code Commission, IRC 2024 permanent rule, effective September 14, 2026
- 2024 International Residential Code, Chapter 3 (R319 Emergency Escape and Rescue Openings), Oklahoma
- 2018 International Residential Code, Chapter 3 (R310 Emergency Escape and Rescue Openings), Oklahoma
- City of Stillwater, Building Safety Division, Adopted Construction Standards (revised September 17, 2024)
- City of Stillwater, Building and Fire Code Services
- City of Stillwater, Ordinance No. 3604, short-term rentals (June 15, 2026)
- PNNL, Guide to Determining Climate Zones by County (PNNL-33270)
- U.S. EPA, Lead Renovation, Repair and Painting Program
Stillwater job steps
From the first call to the last window in
- Free estimate in Stillwater
- Samples and brochures brought to the property
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Call us or write
Call (918) 619-2010 or send the form with the Stillwater address and what is wrong with the windows or doors, and say whether the place is rented.
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We come to the property
We drive over from Tulsa with samples and brochures, since there is no showroom, and look at each window and door with you.
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Your choices, plainly
We explain what each opening needs and which windows and doors fit it, so you choose what suits the house and the budget.
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Our crew installs
Our own long-time crew does the installing, with Andrey and Vadim supervising and working on site.
Talk to us about Stillwater
Tell us about the Stillwater property
Call (918) 619-2010 or send a message with the Stillwater address and what you want replaced, and we will set up your free estimate.
- 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 
