Sign In / Register
Windows In-House Design Studio

Specified right.
Delivered ready to set.

New construction and replacement windows for Middle Tennessee builders, remodelers, and homeowners. We custom-spec every order in our design studio (sizes, glass packages, grilles, finishes, hardware) and deliver clean to the job site.

Replacement and new-construction windows in stock at Midway Supply: double-hungs and arched specialty units

Before You Price a Window

Know what you are buying.

Three short reads. Ten minutes total. Written for the builder who has to answer to the money, and for the money.

Window Brands Midway Sells

Three lines. Each its own page.

Three direct manufacturer accounts: Tennessee-made MGM Industries, clad-wood-and-vinyl Sun Windows, and the national Ply Gem line. Each has its own page with the full lineup, galleries, and spec books. We carry the range so the window matches the house and how long you will own it. Sun is the premium line; the lessons above explain why that matters. Don't see a brand? Just ask →

Why Midway for Windows

Custom is the standard, not the upcharge.

01: Design Studio

Specs done right the first time.

We do takeoffs from plans and specs every day, and when the job calls for it, we'll come to the site and pull the measurements ourselves. Tape on every opening, eyes on every header, on your schedule. Then we work through every detail with you: rough opening sizes, mulled units, glass packages, grille patterns, exterior color, interior finish, hardware. You walk out with a clean order, not a guess.

02: Direct Manufacturer Accounts

Real lead times. Real pricing.

We're a direct dealer with the major window manufacturers, not a re-seller. That means current lead times, factory pricing, and a real person to call when something needs to ship faster.

03: Receiving & Delivery

Inspected. Inventoried. Delivered.

Windows come through our yard, get checked against the order, and stage for delivery on your schedule. No "the trucking company left it at the wrong address." We handle that.

Window Types

Every operating style. Every opening.

A starting menu. We can spec almost anything a manufacturer offers. These are the patterns we sell every week.

Double-Hung

The Tennessee classic. Both sashes operate, tilt-in for cleaning. New construction or replacement.

Single-Hung

Bottom sash operates, top fixed. Common spec for production builds and rentals.

Casement

Crank-out for full ventilation. Excellent egress. Modern and farmhouse looks both.

Awning

Hinged at top, opens out. Great over kitchen sinks, bathrooms, and high-wall stacks.

Slider / Glider

Horizontal operation. Good fit for wide, low openings: basements, bedrooms, additions.

Picture / Fixed

Non-operating. Maximum glass for views and daylight. Great mulled with operating units.

Geometric & Specialty

Half-rounds, octagons, gables, transoms. Custom shapes. We'll spec the framing too.

Bay & Bow

Multi-unit projecting assemblies. Includes seat boards, headers, and roof systems.

Egress & Basement

Code-compliant egress sizing for bedrooms and finished basements. Wells available.

Frame Materials

Pick the right material for the build.

  • Vinyl

    Most replacement work. Energy-efficient, low maintenance, great price-to-performance.

  • Fiberglass

    Premium structural strength, narrow sightlines, paintable. Great for high-end new construction.

  • Wood & Clad-Wood

    Real wood interior with aluminum or fiberglass exterior. Architectural look, low maintenance outside.

  • Aluminum

    Commercial and modern residential. Thin profiles, large openings, durable finishes.

Glass & Performance

Specs that matter in Tennessee.

  • Low-E + Argon (Standard)

    Our default for energy code. Reflects heat in summer, retains it in winter.

  • Triple-Pane

    Higher R-value, better sound dampening. Often spec'd along busy roads or for premium builds.

  • Impact / Hurricane Glass

    Available where the design calls for it. Same-frame look, laminated glass.

  • Tempered & Obscure

    Code-required tempered for hazardous locations. Obscure / frosted for bathrooms.

  • Grilles & SDLs

    Grilles-between-glass, simulated divided lites, full true divided lites, your choice.

How a Window Order Works

From plan set to installed unit.

  1. Step 01

    Bring us the plans.

    Drop off, email, or send a takeoff. Hand sketches welcome.

  2. Step 02

    Spec session.

    We sit down (in person, phone, or screen-share) and finalize every opening.

  3. Step 03

    Quote & order.

    You get a written quote with itemized units, finishes, and lead time. Approve and we order.

  4. Step 04

    Receive & deliver.

    Units come to our yard, get inspected, then delivered to your job site on your schedule.

Frequently Asked

Window questions, answered.

What is the difference between vinyl, fiberglass, and clad-wood windows?
Vinyl windows are made from extruded PVC: most affordable, energy-efficient, low maintenance, but limited in color (white, almond, and a small palette) and can warp at very high temperatures. Fiberglass windows have stronger structural performance, narrow sightlines, and accept paint: premium price, long service life. Clad-wood windows have a real wood interior wrapped in extruded aluminum or fiberglass exterior: architectural look inside, low-maintenance outside; the most expensive option but the standard for high-end new construction. Midway Supply carries Tennessee-made vinyl from MGM Industries, vinyl plus clad-wood from Sun Windows, and the full Ply Gem lineup including the MIRA premium series.
What is Low-E glass and why does it matter?
Low-E (low-emissivity) glass has a microscopically thin metallic coating that reflects long-wave heat radiation while letting visible light pass. It reflects summer heat back outside and winter heat back inside, improving energy efficiency by 25 to 50 percent compared to clear glass. Low-E plus argon gas fill in the airspace between panes is the modern energy-code standard for residential construction. Midway-spec windows ship with Low-E + argon as the default glass package.
What is a typical lead time on custom windows?
Stock-color vinyl windows usually ship in 1 to 2 weeks. Custom-color vinyl, fiberglass, and clad-wood windows typically run 4 to 8 weeks from approved order. Premium clad-wood with custom shapes, special finishes, or grilles can run 8 to 12 weeks during peak build season. Add 1 to 2 weeks for any spec change after the order goes in. Midway provides current factory lead times when quoting.
What is a U-factor and what should I look for in Tennessee?
U-factor measures how much heat passes through a window. Lower is better (more insulating). Energy Star-rated windows for the Southeast have U-factors of 0.30 or lower. Tennessee energy code generally aligns with Energy Star South-Central. Solar Heat Gain Coefficient (SHGC) is also important. 0.30 or lower keeps summer heat out. Both numbers are on the NFRC label on every window. Midway-spec windows ship Energy Star-compliant by default.
What is the difference between casement and double-hung windows?
A casement window hinges on the side and cranks open outward: full ventilation, excellent egress, modern look. A double-hung window has two sashes that slide vertically. Both sashes operate, and many tilt in for cleaning. Casements seal tighter against weather (gasket compresses when latched) and offer better air control. Double-hungs are the Tennessee residential classic, historically appropriate for traditional architecture and easier to fit standard window sizes. Midway carries both styles.
Are triple-pane windows worth it?
Triple-pane windows add a third glass layer and a second insulating airspace, improving U-factor by about 25 percent over double-pane and reducing sound transmission by 5 to 10 dB. Worth it for: high-noise locations (busy roads, airports), premium new construction targeting net-zero, or extreme-cold climates. Less worth it in Middle Tennessee where double-pane Low-E + argon already meets aggressive energy targets. Midway can spec triple-pane on most lines when project goals call for it.

Request a Window Quote

Tell us about the project.

A window estimator will follow up, usually same day. Plans, sketches, or a list of openings all work.

OK to text? *
Attachments (optional) PDF, DWG, PNG, JPG, DOC, XLS · up to 25 MB total

    Related Categories

    Visit the Showroom

    See it set up, in person.

    Browse the displays and talk it through with our team, face to face.
    119 Cumberland St, Ashland City. Y’all come by.

    Call Directions Contact