Take 70% Off New Window Installation
Knox County's homes span a century of construction and the windows reflect it. Renuity replaces them with vinyl-framed insulated glass units sized to each opening and backed by a lifetime transferable warranty.
Offer expires in:
Renuity installs vinyl-framed replacement windows across Knoxville, TN. Every project opens with a free in-home consultation, measurement of each opening, and a review of style and glass options before licensed installation by insured crews.
Knoxville's established neighborhoods span a long construction history. Homes can have windows that are 50 to 70 years old or more, running on single-pane glass and hardware that was never designed to last this long. Further out in Knox County's suburban development, the problem might be builder-grade windows at the end of their service life, leaking conditioned air and letting heat through glass.
Either way, a window replacement project replaces the glass, frame, hardware, and perimeter seal together. Our consultation identifies what is actually failing at each opening so the project scope reflects the home's specific condition rather than a generic assessment.
Double-hung windows: Two independent sashes that both tilt inward for interior cleaning. A new unit arrives as a complete factory assembly with current-standard balance hardware, weatherstripping, and insulated glass, replacing everything the original had worn out.
Casement windows: Side-hinged panels that crank outward to a fully unobstructed opening. The sash seats against the frame under compression when closed, which produces a tighter seal than a sliding or double-hung configuration.
Picture windows: Fixed panes with no sash and no operational joints. A picture window captures that view while delivering the highest thermal performance of any configuration, since the absence of a moving sash eliminates the infiltration gap an operable unit requires.
Awning windows: Top-hinged crank units that open outward from the bottom edge. East Tennessee's warm season brings frequent afternoon convective showers that develop quickly. An awning window stays open through light rain because the sash angle sends water away from the interior.
Sliding windows: Horizontal sashes on a sealed track. Common across Knoxville's diverse construction periods wherever a low wide opening does not suit a swinging sash: lower-level family rooms, utility spaces, basement-adjacent areas, and additions where the original builder built the opening horizontally. Operates without projecting in or out.
Bay windows and bow windows: Multi-panel assemblies that project beyond the wall plane. In Knoxville's older neighborhoods, bay and bow units were often retrofitted onto original homes and are now carrying seals and hardware from those earlier renovations. Replacement restores the projection with current glass and a new perimeter seal.
Hopper windows: Bottom-hinged basement units that tilt inward from the top. Including them in a window replacement project addresses a ground-level infiltration point that works against the performance of the floors above it. Available in egress-compliant sizing where a finished basement requires a code-approved exit.
Garden windows: Three-sided box projections installed above a kitchen sink. A frequent upgrade in Knoxville's established neighborhoods where the original kitchen window was a small single-pane unit in an aging wood frame. The garden configuration adds light from three directions, and provides a shelf area.
Vinyl frames hold their dimensions across Knoxville's seasonal temperature and humidity range without the damage that causes wood frames to become less effective over time. The material does not absorb moisture, does not rot, and carries no painting, staining, or refinishing requirement. In Knoxville's older neighborhoods where wood exterior maintenance has been a recurring cost alongside every other element of an aging home, removing the window from that cycle matters.
Multi-pane insulated glass with low-emissivity coatings limits solar heat gain through south- and west-facing glass during Knoxville's long humid summers and slows heat loss outward in winter. Our energy-efficient window options include upgrade glass packages for openings where the thermal load is highest.
2025 Guildmaster Award. Knoxville is a competitive installation market with no shortage of window companies, but Renuity stands out. The Guildmaster Award is calculated from satisfaction surveys submitted by real homeowners after projects close. Renuity earned it in 2025.
Lifetime transferable warranty. Covers the window product and the installation labor for the life of the unit. Knoxville's real estate market is active across all of Knox County, and a transferable warranty covering both product and labor holds its value through a sale rather than ending when the current owner moves.
Licensed and insured installation teams. Licensed and insured crews carry the coverage that protects the homeowner if something goes wrong on the job. Knox County's permit and inspection requirements apply to window replacement work, and licensed installation ensures the project meets that standard at each opening.
Free in-home estimates. Every unit is fabricated to the specific dimensions of its opening. In Knoxville, where construction age varies from block to block and opening condition ranges from sound to severely deteriorated, the estimate visit eliminates the guesswork before a decision is made. No cost, no obligation.
Consultation. A specialist measures each opening and evaluates frame and trim condition across the home. In Knoxville's older neighborhoods, the range of what each opening requires can vary significantly within the same house, and the consultation surfaces those differences before fabrication begins.
Fabrication. Each unit is built to the measured dimensions of its specific opening with the style and glass package confirmed at consultation.
Installation. Crews remove the existing unit, address frame and trim preparation identified at the consultation, set and seal the replacement, and finish trim at each opening. Most 10- to 15-window projects complete within a few days; the consultation establishes the specific timeline.
Walkthrough. Each new window is operated with the homeowner before the crew leaves. In older Knoxville homes where original windows may have been binding or poorly sealed for years, the walkthrough confirms the difference in fit and operation firsthand.
Homeowners can also ask about Renuity's bathroom remodeling in Knoxville and kitchen cabinet refacing in Knoxville during the consultation.
Offer expires:
plus 12 months, no interest,no or low monthly payments
claim offer
Renuity installs vinyl replacement windows across Knoxville with multi-pane insulated glass and a lifetime transferable warranty. Schedule a free in-home estimate to walk through the openings and confirm scope with a specialist on site.
At Renuity, our greatest pride comes from the trust homeowners place in us and the lasting results we deliver. From seamless installations to transformative home upgrades, we’re committed to making every project simple, stress-free, and built to last. Our family of regional brands includes some of the most respected names in remodeling nationwide, all united by proven expertise and a shared commitment to exceptional service. See how we’ve made a difference for families nationwide and what they have to say about their experiences with Renuity.
Very professional, pleasant, ahead of schedule . Dealing with Danny Guthrie was pleasant and answered all our questions. Their were no other surprise costs. We loved the service, the contractors wer...
All the people we have dealt with from Renuity from the sales rep, office administration & the installers, have been very good to deal with. On the first day of the installation, they found dry rot un...
This was a very pleasant experience. Lance, my salesperson, was very professional and understood my concerns and needs. Blake and Sebastian, the installers of my new shower remodel, were friendly, har...
We have used Renuity Home Improvement (formerly FHIA) five different times, and every experience has been excellent. They replaced the windows in our previous two homes, completed our parents’ two hom...
We are so pleased with our new shower ! The installing crew were friendly, professional and on time. The appearance of the modern shower is so lovely. We would recommend this company 100% if you wa...
Excellent salesman Wesley was .kind, friendly and knowledgeable...great guy. The brothers were Excellent and beyond, superb work by them and they were fast with the installation. No better place to h...
We had a roof and windows installed by this company. We had 4 companies we were interviewing. FHIA was the second one we met with. Josh came to our home to present their products and servies to us. I...
Great workmanship. Great job. The workers was very professional and explained the installation. Clean up after the job was completed. I would definitely recommend this crew to anyone interest. Thanks...
Conde was very nice and professional with his work , and they kept me informed of the job as it went forward. These are nice windows that should be trouble free for a long time. They were thorough thr...
Now that windows all installed I am pleased with the work, clean up, craftsmanship of products I am pleased. Conscientious of others property. Installed with great care of surroundings. Do recommend...
