Replacement windows, entry doors, and patio doors for homeowners across the Kansas City metro. Alliance Hawthorne windows and ProVia doors, measured, quoted, and installed by the owner.
Tell us what you need and we'll reach out to schedule your free in-home estimate.
Your information is never shared or sold. We'll reach out once to schedule your appointment — no spam, no pressure.
From a single window to a whole-home transformation, KO Carpentry delivers with precision and care.
Single-hung, double-hung, casement, bay, and picture windows. We remove the old and install the new with a clean, airtight finish that lasts decades.
Learn more →Steel, fiberglass, and wood entry doors installed plumb and level every time — including ProVia storm doors for an extra layer of weather protection. We handle the framing, weatherstripping, hardware, and finishing trim.
Learn more →Smooth-gliding, properly sealed patio doors that bring light in and keep drafts out. French doors and sliding systems available in a range of styles.
Learn more →Triple-pane glass, low-E coatings, and argon-filled units that cut your heating and cooling bills — and qualify for energy tax credits.
We install only trusted, high-quality brands — built for Kansas City weather and backed by strong warranties.
Fiberglass and steel entry doors available in hundreds of styles, finishes, and glass options. ENERGY STAR certified with lifetime warranty.
Smooth-gliding patio doors with superior weatherstripping, multi-point locking, and optional blinds between the glass.
Premium vinyl replacement windows with Low-E insulated glass, 45 color combinations, and a lifetime glass breakage warranty.
High-performance patio doors in two-lite and three-lite configurations with side lite and transom options. Available in dozens of color combinations.
Your home is protected at every step. We carry full liability insurance and all required trade licenses.
We quote the job up front — no surprise add-ons, no hidden labour charges. What we quote is what you pay.
We respect your schedule. Most jobs are booked and completed within the same week with minimal disruption.
Our work is backed by a lifetime craftsmanship guarantee — not just the manufacturer's warranty.
Four easy steps from first contact to finished installation.
We come to you, assess your windows and doors, and discuss your goals — no obligation, no pressure.
You receive a detailed written quote covering materials, labour, and timeline — all in plain language.
Our crew arrives on time, protects your home, and completes the installation to exacting standards.
We review every detail with you before we leave. No surprises, no mess — just a beautiful finished result.
Rated 5 stars on Google.
“Kyle is a very laid back and easy going “salesman”. There was zero pressure with his presentation and bid… His communication is top notch… A huge selling point outside of the windows is Kyle is a one man show. He shows you the product. Gives you a bid. And installs the windows himself. ONE person to deal with was a huge factor in choosing him.”
“Kyle absolutely knocked it out of the park. From the first conversation to the final installation, he was knowledgeable, professional, and made the whole process easy. The new windows look incredible… He was on time, communicated throughout the project, and left everything spotless when the job was finished.”
“High quality, prompt, and great communication! Kyle was great to work with. Very clear in communication and quick turnaround as soon as our windows were available for install! We will definitely be working with him in the future & absolutely recommend him!!”
“Had a door replaced and added a storm door. Looks fantastic! Kyle cleaned up and kept a tidy work space. He also did a couple small door related chores when we asked him to. All done in a reasonable time and well.”
“Kyle is very professional and did a wonderful job on our window replacement.”
“Professional work at a great price! Kyle had my window installed in a short amount of time and worked around our schedule. Would highly recommend!”
Everything you need to know before getting started.
Every home is different, so pricing depends on the number of windows, their size and style, and any upgrades like triple-pane glass or custom frame colors. We provide a free, no-obligation in-home estimate with an exact written price before you commit to anything.
Door pricing depends on the door style, size, material, and any glass or hardware upgrades. We install ProVia entry and patio doors and Alliance Hawthorne patio doors, both backed by strong manufacturer warranties, and we'll give you an exact written price after a free in-home estimate.
Window replacement typically takes 2–4 weeks from order to install, while doors usually take 3–6 weeks depending on customization options chosen. Most installation appointments themselves are completed in a single day.
Yes! We offer financing through Acorn Finance. You can get pre-qualified online in seconds with no impact to your credit score, and choose a monthly payment plan that fits your budget.
KO Carpentry proudly serves Kansas City and the entire surrounding metro area, including Overland Park, Lee's Summit, Blue Springs, Independence, Olathe, and all nearby suburbs on both the Missouri and Kansas sides.
Yes, KO Carpentry LLC is fully insured and carries full liability insurance, so your home is protected throughout the entire installation process.
With KO Carpentry you work directly with the owner, who has 15+ years of experience including past work for two of the major window and door companies in Kansas City. The same person who measures and quotes your job is the one who installs it, so nothing gets lost between a salesperson and an install crew.
Yes, every installation is backed by a lifetime workmanship warranty from KO Carpentry, in addition to the manufacturer warranties on the windows and doors themselves.
Request your free, no-obligation quote today.