
Franklin Window Replacement: Windows, Patio Doors, Entry Doors and Glass
Expert residential and commercial window services across Franklin and Williamson County. Free on-site measurement, no pressure, honest scope.
- ✓Licensed and insured
- ✓Written workmanship warranty
- ✓Free on-site measurement
- ✓Glass specified per elevation
Why Franklin Chooses Franklin Window Replacement
- ✓We write the solar heat gain coefficient wall by wall instead of house-wide, because the county code sets no ceiling on it and a west elevation and a shaded south elevation want opposite answers.
- ✓Insert and full-frame approaches are priced side by side on the same estimate, so you can see what keeping your existing frame saves and what it costs you in daylight opening.
- ✓Every sill gets probed with an awl before we recommend an insert, because burying a new unit inside a soft frame hides the problem for about five years and then costs twice.
- ✓Pans go under every opening the framing allows, sloped outward with dammed ends and a raised back edge, because flashing decides whether a mixed-humid wall stays dry long after label numbers stop mattering.
- ✓We replace failed sealed glass units in serviceable sash rather than selling a whole window, and we say on the first visit whether your sash can be opened up or is welded shut.
- ✓We will not sell laminated glass as tornado protection, because Williamson County is not a wind-borne debris region and a rated shelter is the honest answer to that question.
How It Works
On-site measurement, elevation by elevation
We measure every opening, check the sill and lower jamb with a probe for soft wood, and note which wall each window faces along with eave depth and existing shade. That walk decides insert versus full-frame and which glass package belongs on which side of the house, before any product is discussed.
A written scope with the numbers on it
The estimate lists frame material, sash type, U-factor and solar heat gain coefficient per elevation, spacer and gas fill, and the flashing detail we intend to use. If two approaches make sense on your house, both are priced so you can see what the difference actually buys instead of guessing.
Ordering, lead time and permitting
Units are built to your measured openings, so the numbers are confirmed twice before release. We tell you the real lead time rather than an optimistic one, and we handle the permit where the work requires it, including foundation cutting for a new basement egress opening.
Installation, flashing and a walk-through
Units go in plumb and square, shimmed at the balance points, with a sloped pan under anything the framing allows, low-expansion foam only, and a continuous interior seal. We operate every sash and lock with you at the end, adjust what needs adjusting, and leave the labels and paperwork with you.
Our Window Services in Franklin, TN

Energy-Efficient Window Replacement
Franklin reviews houses under the 2024 IRC but judges their glass against the 2009 IECC. In Climate Zone 4A that leaves one enforceable number, a 0.35 U-factor, and no solar heat gain ceiling at all on the residential path.

Vinyl Replacement Windows
Williamson County has the income to buy any frame material made, which is exactly why the honest advice here is so often the cheapest one. On most of the houses we quote, welded vinyl is the correct purchase and the upgrade is being sold on aesthetics rather than physics.

Fiberglass Window Installation
Fiberglass is worth its premium in three situations and is an expensive habit everywhere else. We would rather name the three than sell you the material by default on a house that does not need it.

Clad Wood Window Replacement
Clad wood is the one place on this site where we argue for the expensive product without qualification, and the reason has nothing to do with energy numbers. It is about sightline, muntin geometry and what the interior of an older Franklin house is trying to be.

Aluminum Window Systems
Aluminum is a commercial material that occasionally shows up on houses, and in a mixed-humid climate that distinction matters more than the sales literature admits. We install it where it belongs and steer residential customers away from it where it does not.

Double-Hung Window Replacement
The double-hung is the default sash across Middle Tennessee, which means most of the real decisions on a Franklin quote are not about the window at all. They are about whether we go into the existing frame or take the whole thing out.

Casement & Awning Windows
A casement swings out on a hinge and pulls shut against a gasket; an awning does the same on a horizontal axis at the head. That geometry solves two specific problems in Franklin houses, and it creates one that people discover after the first hard rain.

Sliding & Gliding Windows
A horizontal slider is the plainest product on this list and frequently the correct one. It costs less than the alternatives, it has almost nothing to break, and it fits a shape of opening that other sash types handle badly.

Bay & Bow Window Installation
A bay or a bow is less a window than a small piece of building pushed out past the wall plane. Nearly everything that goes wrong with one goes wrong because somebody treated it as a window purchase rather than a construction detail.

Picture & Architectural Windows
Fixed glass is where the orientation argument stops being theoretical. A picture window has no sash, no balances and no air leakage path worth discussing, so almost the entire decision is which glass goes in it and which wall it faces.

Egress & Basement Windows
Egress is the one part of a window purchase where the numbers are not negotiable. If a room is a sleeping room, or a basement holds habitable space, the code requires an opening a firefighter in gear can get through and an occupant can get out of.

Impact & Laminated Glass Windows
We sell laminated glass and we will not sell it to you as tornado protection. That claim gets made in Middle Tennessee every spring, and it does not survive contact with either the code or the physics of what a tornado does to a house.

Patio & Sliding Glass Doors
A sliding patio door usually holds more glass than any window in a Franklin house, which means it drives the room's comfort and its solar load more than anything else on that wall. It is also the assembly most likely to be leaking water into the wall below it.

French & Hinged Patio Doors
A hinged pair reads better than a slider on almost any traditional elevation, which is why so many Franklin houses have them. They also ask more of the installation, because two swinging leaves meeting in mid-air have to seal against each other with nothing but hardware holding the line.

Entry Doors & Sidelites
A front door is a small fraction of your envelope and a large fraction of what visitors see, so the arguments for spending on one are mostly not about energy. We will be straightforward about which parts of an entry door purchase actually return something.

Window Screens & Rescreening
This is the smallest job on the site and the one we most often use to talk somebody out of a much larger one. Torn screens are not a reason to replace windows, and a house full of them is not evidence that the windows have failed.

Glass Repair & Insulated Unit Replacement
Where the frame is solid, the hardware still works, and glass is the only thing wrong, swapping just the glass runs a small fraction of what a new unit costs. That is the most useful sentence on this site, and the least likely to come from a whole-house salesman.

Commercial Storefront & Glass
Commercial glazing in this city answers to a different rulebook from the dwelling beside it, and the gap is wide. A building reviewed under the commercial code is judged against a current energy code.
What Franklin Customers Say
They quoted our west-facing great room glass differently from the rest of the house and explained exactly why. Two summers later that room is usable in the afternoon for the first time since we bought the place. No pressure to add anything we did not need.
I called expecting to buy eleven windows and left with four replaced and seven sealed units swapped. The bill was less than half what I had budgeted. They showed me which sash were serviceable and which were not, on the spot, with the stops off.
We needed a basement bedroom to actually meet the escape requirement. They measured the net clear opening for two configurations, told us a casement would pass without cutting the block, and pulled the permit. Inspection went through with no corrections at all.
The sill under our patio door was soft and they found it before quoting instead of after. Full frame, new pan, proper flashing. It cost more than the number I had in my head and it was clearly the right call once I saw what was behind the trim.
Franklin Window Replacement handles replacement windows, patio and entry doors, and insulated glass across Franklin and Williamson County, Tennessee. Frames come in welded vinyl, pultruded fiberglass, clad wood or thermally broken aluminum. Sash types run from double-hung and casement through awning, slider, bay, bow and fixed. Where a sash is still worth keeping, we re-glaze it rather than sell you a new one.
Houses here are reviewed under the residential code and judged against a 2009 energy table, which caps the window U-factor at 0.35 and sets no solar heat gain ceiling at all. Clearing that bar is easy and tells you almost nothing. We write the glass package elevation by elevation instead, so a west wall gets a coating that fights August afternoon sun while a shaded south wall keeps its winter gain.
The rest of the job is the opening itself. Outward-sloped pans, low-expansion foam, backer rod and an unbroken interior air seal are what decide whether any label number survives contact with your wall. We price insert and full-frame approaches side by side, and we say plainly when a repair beats a replacement.
About Franklin Window Replacement in Franklin, TN
Franklin Window Replacement is a window, door and glass company working in Franklin and across Williamson County. Our work is replacement rather than new construction: existing openings in houses that are already standing, with the settled framing, out-of-square jambs and forty years of previous repairs that come with them. That is a different craft from setting units into a new wall, and it is the one we practice.
We are opinionated about specification because this county gives homeowners unusual freedom. The residential energy code enforced here dates to 2009 and regulates only the U-factor, so nothing stops a supplier from putting one glass package on all four elevations. We write ours per wall, with a low solar heat gain coating on the west and a clearer package where the sun cannot reach.
A few jobs belong to somebody else, and we say so. If your original wood sash are solid and the trouble is nothing worse than failed putty, tired balances and a fogged pane or two, hire a restoration carpenter and a glazier rather than buying replacements. If your complaint is a draft at the front door, we would rather sell you weatherstripping and a threshold adjustment than a slab. Saying so costs us work and keeps the estimates honest.
Recent Projects Across Williamson County




Service Areas
Franklin Window Replacement serves Franklin, TN and surrounding communities including:

Storefront, office and retail glazing in Williamson County
Commercial work in this city sits on a different code path than the houses around it. A building reviewed under the commercial code answers to a current energy code, while a dwelling next door is still measured against a table from 2009, so the documentation and the performance targets are not comparable.
We install and repair aluminum storefront systems, entrance doors and closers, tempered and laminated lites, spandrel panels and insulated commercial units, and we survey existing openings before ordering because tenant spaces in older buildings are rarely square.
- ✓Thermally broken aluminum storefront framing, glazed with insulated or single tempered lites, sized from a field survey rather than from a drawing
- ✓Entrance doors, pivots, closers and panic hardware adjusted so the door latches fully without becoming an obstacle to entry
- ✓Accessible entry hardware that operates without tight grasping, pinching or wrist twisting, with closer speed set to meet the requirement
- ✓Same-day board-up or temporary glazing after a break-in or vehicle strike, with dimensions and glass type documented before removal
- ✓Tempered and laminated safety glazing in doors, sidelites, walking paths and stair-adjacent locations, with the permanent mark left visible
- ✓Insulated commercial units and spandrel panels matched to existing framing depth, coating and finish on partial-elevation replacements
- ✓Laminated security glazing on ground-floor retail lites, specified for forced-entry delay rather than sold as weather protection
- ✓Scheduled off-hours installation for occupied retail and office suites, with the opening dried in before the crew leaves the site
Frequently Asked Questions
What energy rating do windows actually have to meet in Franklin?
The city reviews houses under the residential code and applies the 2009 energy code to them, and unincorporated Williamson County uses the 2018 edition with the 2009 tables. For Climate Zone 4A that means a fenestration U-factor of 0.35 or lower, a 0.60 skylight U-factor, and no required solar heat gain coefficient on the residential path.
Nearly any modern double-pane low-E unit clears it, which is why we treat that number as a floor rather than a target and choose the coating by elevation.
Will the city make me pull a permit for same-size window replacement?
Usually yes for the replacement itself, and definitely yes if you change the size of an opening, cut a new one, or alter a foundation wall for a basement egress window. Requirements differ inside the city limits and in unincorporated parts of the county, so we confirm with the reviewing office for your address rather than assuming. We handle the application on jobs we install.
Is my house in a district that requires a Certificate of Appropriateness?
Parts of Franklin are, and the boundaries are specific enough that neighbors on the same street can fall differently. The city's preservation staff can tell you whether your address is included and which exterior changes are reviewed. Ask before ordering, because material, muntin pattern and light configuration are the elements most likely to be looked at, and lead times on approved products are longer.
Are triple-pane windows worth it in Middle Tennessee?
For most houses here, no. A third lite roughly doubles the glass cost, adds weight that works on the balances, and narrows the sightline, while the annual energy difference against a good double-pane unit in Zone 4A is small. We would rather put that money into the west elevation glass, a better spacer, or a proper sill pan under the patio door.
My windows are fogged between the panes. Do I need new windows?
Not necessarily. Fogging means the sealed glass unit failed, and in many sash the unit can be measured and replaced while the frame, hardware and weatherstrip stay. That costs a fraction of a full replacement, and it lets you upgrade the coating on the openings that need it. We tell you on the first visit whether your sash is serviceable or welded shut.
What size does a basement bedroom window have to be?
Four numbers govern it. Area: 5.7 square feet clear, or 5.0 at grade floor and below. Height: 24 inches minimum. Width: 20 inches minimum. Sill: 44 inches maximum above the floor. Each is measured on the gap left when the sash is fully open, which is why a unit that looks generous on paper often is not. A well deeper than 44 inches also wants a fixed ladder or steps.