Improve Energy Efficiency & Beautify Your Home With New Windows

Are your old windows letting the AC out during summer and cold drafts in during the winter? It might be time to say goodbye to them and enjoy lower utility bills and beautiful new windows!

Why Choose Rennison Roofing For Window Replacement Columbia SC

Replacing your windows is a big project that should be left to the professionals. With financing available and excellent warranties, we make window replacement easy and stress free.

Free, No-Pressure Estimates

When you request a free quote from Rennison Roofing, you’ll meet with a professional window installer – not a salesperson. We’ll perform an inspection to assess the condition of your current windows, measure frames, and give you a no-obligation quote for your home improvement project.

Home Exterior Experts

When you’re making a big investment in your home it is essential that you choose a contractor who knows their trade. We’ve been honing our craft by serving clients in the Midlands areas since 2003 and produce results that get rave reviews and will last a lifetime.

America’s Best Window Warranty

Here in the Columbia-area we experience heat and humidity in the summer which can warp or crack wood window frames. That’s why we instead use vinyl windows to resist cracking and Low-E glass to keep the heat outside. Our windows warranties last as long as you own your home!

100% Financing Available

We offer affordable pricing without compromising on the quality of our materials or workmanship. By partnering with PowerPay, we provide competitive financing options to replace your windows and improve your home without straining your finances.

 Types of Windows

Windows let the light in, but they also can transform how your home looks. We offer a wide range of window replacement options for you to choose from, letting you get the perfect combination of functionality and beauty.

Double Hung Windows on a brick home.

Double-Hung Windows

This timeless classic is easier to clean than single-hung windows and provides greater flexibility when it comes to ventilating your home.

Casement windows in a kitchen.

Casement & Awning Windows

Casement and awning windows are great for air flow on cool evenings. Awning windows are perfect if you like leaving windows open when it rains, and casement style is easy to clean.

Sliding window letting a breeze in.

Sliding Windows

Sliding windows give you almost everything: views, ventilation, natural light, and ease of use. With our Low-E glass, you get increased energy efficiency compared to a typical sliding window.

Bow Windows with white trim.

Bow & Bay Windows

The choice between bow or bay windows is a matter of preference. Create a cozy sitting space in a bay window, or opt for a bow window for unobstructed views and a classic Victorian look.

Kitchen Garden Window

Garden Windows

Create a special nook for indoor gardening with a garden window. These are great for kitchens and let you grow herbs all year round.

Picture Windows with a view

Picture Windows

While picture windows don’t open, they can be made as big as you desire. They offer great views, tons of sunlight, and with no moving parts require no maintenance.

Benefits of Replacing Windows

Lower Utility Bills

Tired of high utility bills? As windows warp or crack with age, they allow air flow even when the windows are closed. New windows are better sealed, resist cracking, and include modern technologies like Low-E coatings to reduce your utility bill.

No more stuck windows

Over time windows can become difficult to open – requiring you to push and shove them with all of your might. Our windows offer effortless opening and closing, letting you use your windows as often as you want without hurting your fingers!

Freshen up curb appeal

Transform your home’s exterior look by updating stodgy, out of date, or worn out looking windows. We install a wide range of styles to match any aesthetic. From Victorian to Contemporary, your new windows will make your home look great!

Positive: Professionalism, Punctuality, Quality, Responsiveness, Value
“Rennison Roofing and Exteriors did a great job on our home. They replaced our roof, siding, and installed new windows. It was a pleasure to working with a contractor who is honest, punctual, and has great workmanship. I highly recommend them for any roofing or exterior project!” -E. Murphy5 star review rating

replacement windows

About Rennison Roofing

Rennison Roofing and Exteriors has served the South Carolina Midlands including Cayce, Lexington, West Columbia, and parts of Richland County from our Irmo headquarters for almost two decades. High-quality, expert craftsmanship and cost-effective solutions have been our priority since the beginning.


We offer financing in partnership with PowerPay so you can get competitive financing options on your window replacement. Get a no-obligation quote for your personalized payment plan without impacting your credit score!

Casement windows

Frequently Asked Questions

What are the benefits of window replacement?

Some benefits of window replacement include:

  • Better indoor temperature regulation
  • Lower utility bills
  • No more cold drafts in the winter
  • Easier to open, close, and clean
  • Durable, long-lasting materials
  • Improved home aesthetics

What is the best time to replace windows?

Overall, the South Carolina Midlands has mild enough weather that the season you choose shouldn’t make a big difference in your experience with your home window installation.

It’s worth keeping in mind the busy season for window replacements is spring and summer. Your contractor may have more availability in the fall and winter.

How do I know if it’s time to replace my windows?

Some key signs it’s time to replace your windows include:

  • Increasing energy bills
  • Rotting, cracking, or splitting window frames
  • Higher outside noise intrusion than normal
  • Condensation inside your window panes
  • Drafts in your home

Learn more about how to care for your windows, signs they’re ready to be replaced, and what to look for when you go window shopping in our blog, Are Your Windows Going Bad?

Do I need to winterize my windows?

Particularly if you live in an older home, you might benefit from winterizing your windows. This process will help keep warm air inside your home, keeping rooms more comfortable as it gets colder and rainier around Columbia. Weather stripping and window insulation kits are some methods to prepare your windows for winter.

Can old windows really affect my health?

Yes, old windows can affect your health. Old window frames tend to warp or crack, preventing the windows from providing a good seal. This can allow moisture, pollen, and other allergens to enter your home.

All of these combined can definitely result in a home with poor indoor air quality and a higher risk of illness for you and your family.

How do I know what kind of window to choose?

The kind of window you choose depends on what you want from your windows. Are you looking for windows with good ventilation during good weather? Windows that allow lots of light and large views?

During a free in-home consultation with our professionals, we’ll help you understand the pros and cons of different window choices and share our top recommendations.

Questions or concerns? Let us know!

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