If you’ve lived through even one summer in Middle Tennessee, you know—it gets hot. Like, “fry-an-egg-on-your-sidewalk” hot. And if you live in Mount Juliet or Lebanon, you’re also dealing with heavy humidity, long sun hours, and utility bills that skyrocket faster than a Fourth of July firework.
So here’s the deal: If your windows are old, poorly installed, or just plain outdated, they’re probably letting a lot of that heat inside. That means your AC has to work harder, your energy bills go up, and your home stays uncomfortable. You deserve better.
Let’s talk about what you can do to fix that—starting with the right window installation techniques, materials, and best practices specific to homes in our part of Tennessee.

Understanding the Local Climate: Why It Affects Your Window Choices
Mount Juliet and Lebanon sit in the heart of Middle Tennessee, where summer temps regularly hit the upper 80s and 90s, and the humidity makes it feel even hotter. Combine that with sudden thunderstorms, occasional high winds, and that good ol’ Southern sun beating down on your house for 14+ hours a day—and your windows take a beating.
This climate calls for:
High-performance, energy-efficient windows that keep cool air in and hot air out.
Proper installation techniques to prevent air leaks, water intrusion, and UV damage.
Materials that can withstand moisture, shifting temperatures, and sun exposure without warping or breaking down.
Signs It’s Time to Replace Your Windows
Before we dive into installation tips, let’s make sure you actually need new windows. Here are a few signs your windows may be costing you comfort and money:
If you’ve noticed drafts near your window frames, excessive heat in your home during the afternoon, or unusually high cooling bills, it might be time to take a closer look at your windows.
Signs like condensation between panes, which indicates seal failure, warped or cracked frames, or windows that are hard to open, are all clear indicators of potential issues. Additionally, if outside noise seems louder than usual, your windows may not be providing adequate insulation.
If any of these sound familiar, you’re not alone—and you’re not stuck. Let’s talk about how to make smart, effective changes.
The Best Window Types for Mount Juliet & Lebanon Summers
Not all windows are created equal, especially when it comes to battling Southern heat. Here are your best bets:
1. Double-pane or Triple-pane Windows
These have multiple layers of glass with gas fills (like argon or krypton) between them. That added insulation keeps heat out and your cool air in.
2. Low-E Coated Glass
Low-emissivity (Low-E) coatings reflect infrared light and block harmful UV rays while still letting in natural light. They help keep your home cooler without sacrificing brightness.
3. Vinyl or Fiberglass Frames
Wood looks great, but it doesn’t always hold up to Tennessee’s humidity and heat. Vinyl and fiberglass resist warping, rotting, and swelling.
4. Casement or Awning Windows
These windows seal tighter than traditional sliding windows when closed, which makes them better at keeping hot air out.

Smart Installation Tips for Tennessee Heat
Even the best windows won’t perform well if they’re poorly installed. Here’s what to keep in mind:
Installation Best Practices for Maximum Efficiency
1. Use Proper Flashing and Sealing Techniques
Water intrusion is a major issue in the humid Southeast. Flashing tape and high-quality caulking around the frame will prevent leaks.
2. Check and Prepare the Rough Opening
The opening should be level, square, and free of rot or mold. Don’t rush this step—it’s crucial for a tight fit.
3. Use Expanding Foam Insulation
Apply low-expansion spray foam around the window frame to fill gaps and block air leaks. Just don’t overdo it—too much pressure can warp the frame.
4. Anchor the Window Properly
Use manufacturer-recommended screws and placement methods. Improper anchoring can cause shifting over time.
5. Verify Local Building Codes
Mount Juliet and Lebanon may have specific permit or code requirements, especially in newer subdivisions. Check with the City of Mount Juliet Building Codes or the City of Lebanon Building Inspection Office before starting your project.
Energy Efficiency: Why It Pays Off Year-Round
Energy-efficient windows are a smart choice for every season. They don’t just keep your home cool in the summer; they also help retain warmth during the winter.
This means you’ll use your HVAC system less throughout the year, enjoy better temperature control in every room, reduce wear and tear on your heating and cooling systems, and save money on utility bills in the long run.
According to Energy Star, homeowners can save up to $465 annually by switching to energy-efficient windows. And when you pair them with proper installation, those numbers get even better.
Maintenance Tips to Keep Your Windows Performing Long-Term
Once your windows are in, don’t forget to take care of them. A little upkeep goes a long way in extending their life and efficiency.
To keep your windows in excellent condition, make sure to clean them regularly using mild soap and water, avoiding harsh chemicals that could cause damage. It’s important to check the seals and caulking annually for any cracks or shrinkage, as these can impact performance over time.
Additionally, inspect the screens and hardware, replacing or repairing anything that is damaged to maintain functionality. Lastly, trim back any vegetation that might touch or press against the windows to prevent unnecessary wear or obstruction.
Top Window Manufacturers Worth Considering
When it comes to quality, these manufacturers lead the way in producing windows that can take on Tennessee’s heat and humidity.
Top Manufacturers:
Andersen Windows
Known for high-performance, customizable designs with great energy efficiency.
Pella Windows
Offers top-rated Low-E glass and beautiful designs for both modern and traditional homes.
Marvin Windows
Premium materials and build quality, with excellent thermal performance and UV protection.
Milgard Windows
Popular for their vinyl options and energy-efficient upgrades without breaking the bank.
Simonton Windows
Budget-friendly and energy-efficient with a strong reputation for reliability in hot climates.
Frequently Asked Questions
How much does window installation cost in Mount Juliet or Lebanon?
Costs vary depending on the size, type, and number of windows. On average, expect to pay $600–$1,200 per window including installation. Custom options and triple-pane glass may raise that cost.
Do I need a permit to replace my windows?
In most cases, yes—especially if you’re altering the size of the opening or the structure. Always check with Mount Juliet’s or Lebanon’s building department to stay compliant.
What time of year is best for window installation?
Spring and fall offer the most temperate weather, but summer installations are totally doable—just make sure your installer is experienced in working quickly and sealing effectively to avoid indoor temperature fluctuations.
How long does installation take?
For a typical home, installation can take 1–3 days depending on the number of windows and any structural modifications needed.

Final Thoughts: Make the Smart Choice for Your Home and Your Wallet
At the end of the day, investing in high-quality window installation tailored for our Tennessee heat isn’t just about comfort—it’s about control. You get to control how much you pay in energy bills, how long your HVAC lasts, and how comfortable your family is during those sweltering July afternoons.
You don’t have to sweat through another summer or throw money out the (literal) window.
Have questions or ready to talk with a local expert about your window installation project? Contact us at (615) 861-2315 and let’s make your home cooler, smarter, and more efficient—starting with your windows.