Chattanooga · since 2010
Only the best
for your home.
Energy-efficient replacement windows, siding & doors for Chattanooga homes, installed by a local family you can trust and backed by a lifetime product warranty.
What we install
Windows, siding & doors,
the whole exterior, one local crew.
Replacement Windows
Energy-efficient Okna vinyl windows built to ENERGY STAR standards, narrowline frames that let in more daylight and frame your view.
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Home Siding & Soffit
Low-maintenance Celect composite and Tando siding that holds its color and never needs painting, soffit, trim and accents to match.
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Exterior Doors
ProVia and Okna entry, patio and storm doors, secure, beautiful and built to fit your home perfectly.
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Full Exterior Makeover
Windows, siding and doors together, one crew, one timeline, a complete transformation of your home's look and efficiency.
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Enjoy the view
Why a window is more
than a window.
Replacing old, drafty windows is one of the highest-return upgrades a Chattanooga home can make. Here's what changes the day they go in.
- 01More daylightNarrowline Okna frames mean more glass and a brighter room. The view does the decorating.
- 02Lower energy billsENERGY STAR glass and a tight seal cut drafts and heat transfer, so your HVAC works less.
- 03Quieter & cleanerModern multi-pane glass hushes street noise; tilt-in sashes wipe clean from inside.
- 04Done in a dayMost window jobs are removed, installed and cleaned up in a single visit by our own crew.
Ballpark builder
See what your project could cost.
Pick where you'd start and we'll show a typical range and a financed monthly payment. Your free in-home estimate is exact. This is just a friendly ballpark.
Based on industry averages for full-frame vinyl replacement windows. Final pricing comes from your free in-home estimate.
Get my free, exact estimateFinancing through Lendmark, Vanderbilt Mortgage & US Bank · terms up to 10 years · subject to credit approval.
Quality products from the names we trust
How it works
Four simple steps, zero pressure.
Free in-home estimate
We come measure, talk through your options and hand you a clear written quote, no pressure, no obligation.
Choose your products
Pick from Okna windows, ProVia doors and Celect or Tando siding, plus a finance plan if you'd like one.
Professional install
Our own crews do the work cleanly and on schedule, then leave your home spotless.
Backed for life
Your new windows, siding and doors are covered by a lifetime product warranty.
From your neighbors
Rated 4.9 ★ on Google.
We are very happy with our new windows! Window Works are very professional and trustworthy, family-owned business. James removed all 11 of our old windows from the 50s and installed the new windows in one day. They were really responsive in making sure the job got done well and gave us a good fair price.
The team at Window Works of Chattanooga are great. They won't leave you with any work left to do from bad contractors.
Great service! Great price! Great people! Highly recommend.
Where we work
Serving Chattanooga
& the Tri-State area.
From the city out across Southeast Tennessee, Northwest Georgia and Northeast Alabama. Don't see your town? Just ask.
Before you buy
Windows, siding & doors, explained.
What does Window Works & Exteriors install?
Replacement windows, home siding and soffit, and exterior doors, plus complete exterior makeovers that combine all three. We install Okna windows and doors, ProVia doors, and Celect and Tando siding.
How much do replacement windows cost in Chattanooga?
Most full-frame vinyl replacement windows run roughly $450–$1,000 per window installed, depending on size, style and glass package. The exact number comes from your free in-home estimate, and you can finance the whole project with as little as 0% interest for 6 months.
Will new windows really lower my energy bills?
Yes. Our Okna windows meet ENERGY STAR standards and we're a TVA EnergyRight program partner, replacing old single-pane windows cuts drafts and heat transfer, so your HVAC works less. Many homeowners see a noticeable drop in heating and cooling costs.
Are your products under warranty?
They are, every product we install carries a lifetime warranty. We use quality materials and stand behind every job.
Do you offer financing?
We do. You can finance up to $100,000 with terms from 18 months to ten years through Lendmark Financial, Vanderbilt Mortgage and US Bank, including a 0% interest, 6-months-no-payments plan. Subject to credit approval.
What areas do you serve?
Chattanooga and the surrounding communities across Southeast Tennessee, Northwest Georgia and Northeast Alabama, from Cleveland and Ooltewah to Ringgold, Dalton and beyond. Call to confirm your address.
Are you licensed, insured and local?
Yes, Window Works is a locally owned, family & veteran-owned company, Tennessee licensed (#8350), insured, and BBB A+ accredited since 2011, with owners carrying 35+ years in the window industry.
Last updated June 2026
Free in-home estimate
Let's frame your
best view yet.
Tell us a little about your project and we'll set up a free, no-pressure visit, measurements, options and a clear written price.
Call us today(423) 296-6793- Visit9002 East Brainerd Road, Chattanooga, TN 37421
- Hours
- NoteEvening & weekend estimates by appointment
Thanks, we've got it.
We'll reach out shortly to set up your free estimate. Need us sooner? Call (423) 296-6793.