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10 Best Window Replacement Companies in Charleston, SC

More than 380 people have received a free quote in the last 60 days.

Last Updated: February 25, 2025

Upgrading your windows can be expensive, but is an excellent way to increase your home's energy efficiency and its value. If your windows are on the older side, 25–30% of your house’s heat or cool air could be leaking out, according to the Department of Energy. In Charleston, this can add an extra $522 a year on your energy bills. If you can't decide between window installers, you've found a great way to get started. Keep reading to find the best window installers in Charleston.

Advertisement This site receives compensation from some of the companies featured in this listing, which may impact where and how products appear. When you click "Get Quote," you will be connected with partners who may contact you with information related to your inquiry. This listing doesn't feature all companies, products, or offers that may be available.
Top Pick
4.0/5
  • Holds high customer ratings
  • Offers energy-efficient products
  • Provides a lifetime labor warranty
Best Customer Service
4.0/5
  • Award winning company
  • Products made in the US
  • Knowledgeable sales representatives

Top 10 Best Window Replacement Companies in Charleston

Advertisement This site receives compensation from some of the companies featured in this listing, which may impact where and how products appear. When you click "Get Quote," you will be connected with partners who may contact you with information related to your inquiry. This listing doesn't feature all companies, products, or offers that may be available.

The Glass Guru

The Glass Guru Logo

Our Rating

User Rating

1070 Jenkins Rd Suite 105, Charleston, SC 29407 (843) 874-8366 theglassguru.com

Free assessment

Good customer service

Educational website

Services Offered

Metal frames
Triple pane glass
Fiberglass frames
Glass showers
Storm/impact windows
Custom glass
Tempered glass
Energy-efficient options
Mirrors
Window replacement/installation
Screen repair
Skylights
Glass doors
Wood frames
Window repair
Vinyl frames
Glass repair

Glass Doctor Home + Business of Charleston and Summerville

Glass Doctor Home + Business of Charleston and Summerville Logo

Our Rating

User Rating

Glass Doctor Home Business of Charleston and Summerville, 10583 US-78, Summerville, SC 29483 (843) 266-0026 glassdoctor.com

Educational website

Price transparency

Good customer service

Services Offered

Glass doors
Window repair
Glass repair
Energy-efficient options
Window replacement/installation
Mirrors
Screen repair
Custom glass
Glass showers

West Shore Home

West Shore Home Logo

Our Rating

User Rating

8439 Palmetto Commerce Pkwy Suite 101, Ladson, SC 29456 (843) 868-3623 westshorehome.com

Free assessment

Educational website

Good customer service

Price transparency

Services Offered

Bay windows
Glass doors
Glass showers
Custom window designs
Double-hung
Window replacement/installation

NewSouth Window Solutions

NewSouth Window Solutions Logo

Our Rating

User Rating

2049 Savannah Hwy # 90, Charleston, SC 29407 (843) 699-2300 newsouthwindow.com

Price transparency

Free assessment

Good customer service

Educational website

Services Offered

Glass doors
Double-hung
Metal frames
Storm/impact windows
Window replacement/installation
Energy-efficient options

Palmetto Glass & Mirror Inc

Palmetto Glass & Mirror Inc Logo

Our Rating

User Rating

1939 Belgrade Ave Suite 5, Charleston, SC 29407 (843) 556-0314 palmettoglassinc.com

Timely service

Educational website

Free assessment

Good customer service

Services Offered

Tempered glass
Glass showers
Glass repair
Mirrors
Window replacement/installation
Glass doors

Brothers Builders & Renovation LLC

Brothers Builders & Renovation LLC Logo

Our Rating

User Rating

1434 Alma St, Charleston, SC 29407 (843) 754-7378 brothers-builders.com

Free assessment

Price transparency

Timely service

Services Offered

Window replacement/installation
Energy-efficient options

Window World of the Lowcountry

Window World of the Lowcountry Logo

Our Rating

User Rating

273 Treeland Dr, Ladson, SC 29456 (843) 890-8967 windowworldlowcountry.com

Free assessment

Good customer service

Price transparency

Educational website

Services Offered

Glass doors
Double-hung
Vinyl frames
Bay windows
Window replacement/installation

Coastal Siding & Windows, Inc.

Coastal Siding & Windows, Inc. Logo

Our Rating

User Rating

1662 Savannah Hwy, Charleston, SC 29407 (843) 763-1464 coastalsidingandwindows.com

Timely service

Free assessment

Good customer service

Educational website

Price transparency

Services Offered

Glass doors
Energy-efficient options
Vinyl frames
Window replacement/installation

BC Roofing and Handyman Services

BC Roofing and Handyman Services Logo

Our Rating

User Rating

10 Sams Point Way, Beaufort, SC 29907 (843) 321-8185 bc-serv.com

Free assessment

Educational website

Good customer service

Timely service

Price transparency

Services Offered

Mirrors
Glass showers
Energy-efficient options
Window replacement/installation

Muhler

Muhler Logo

Our Rating

User Rating

630 Skylark Dr Ste U, Charleston, SC 29407 (843) 572-9727 muhler.com

Price transparency

Good customer service

Free assessment

Educational website

Services Offered

Custom window designs
Storm/impact windows
Vinyl frames
Window replacement/installation
Today's Homeowner Ranking Methodology

Today's Homeowner looks at dozens of datapoints on window replacement companies to come up with our data-driven rankings. It's not possible for a company to pay for preferential treatment in our rankings. We look at the following key factors in determining who should top our list:

  • Company Experience
  • Real User Reviews
  • Company Reputation
  • Accreditations and Licenses
  • Service Area
  • Customer Service
Have questions about our methodology or company ratings? Reach out to FindAPro@TodaysHomeowner.com.

How Much Does Window Installation Cost In Charleston?

Window installation and replacement costs will be influenced by several factors, including how difficult your windows are to access or install, the number and size of the windows, and the materials you choose. On average, Charleston homeowners spend about $280 per window*. Below are additional cost breakdowns. *Cost data based on sample pricing for window installation from multiple retailers and adjusted for local cost of living.

When To Replace Windows

Replacing your current windows with new energy-efficient ones can greatly boost your home's appearance, noise reduction, comfort, insulation, and value. Clear indicators it's time to invest in new windows include:

  • Discomfort and high energy bills from poor insulation.
  • Cold air and drafts leaking in from old, loose-fitting windows.
  • Outdated and inefficient window styles that detract from your house's curb appeal.
  • Fogging between window panes, condensation issues, or rotting window frames allowing moisture intrusion into the home.
  • Windows that are hard to open, close, or lock properly due to wear and age.

How To Choose a Window Company

Picking a window installer with appropriate qualifications helps ensure a smooth installation. We explain the main factors to consider when selecting a qualified company below.

Experience

Look for highly-regarded local companies with a long track record of experience successfully installing all types of windows. These providers are more likely to have a deep knowledge of Charleston's climate and local homeowner needs. Request references from recent clients to confirm the quality of a company's work.

Certifications

Select an installer that is accredited by leading window companies and associations like the Fenestration and Glazing Industry Alliance, formerly known as the AMMA. Appropriate accreditation means that a contractor is trained in best practices for installation. Confirm that installers are staff rather than subcontractors, and verify that any technicians working on your project are certified.

Reputation

Spend time reviewing online feedback, checking the Better Business Bureau (BBB), and asking for local references. Review customer feedback to confirm that the company regularly provides good workmanship and customer service. Avoid companies with complaints of poor work or unfinished jobs.

Process

A good provider will give you a comprehensive project plan, detailed timeline, clear expectations, and an overview of all material and installation options. Avoid providers that offer unclear quotes or timelines. Ask for consistent contact throughout, so you aren't caught off guard later on.

Warranties

Research window installers that assure quality installations and provide warranties on labor and materials. This shows confidence in their work. Select companies with unlimited lifetime warranties that can be transferred to new homeowners.

Materials

Make sure the window company offers durable, long-lasting window options and top energy-saving window brands within your budget. Look for good energy ratings, enhanced UV protection, and design flexibility. Check that the window materials also include manufacturer warranties.

Frequently Asked Questions About Window in Charleston, SC

In Charleston, the best time to install windows is when temperatures are mild, generally during spring, winter or fall. These conditions enable professionals to do their work without having to worry about the weather.

The right type of replacement windows for your Charleston home depends on when your home was built –the average house in Charleston was built around 1972. For older homes, you may want to consider efficient windows such as double-pane windows, which are made to keep your home cool in the summer and warm in the winter. Wood frames also have a classic look that's perfect for older homes. For newer homes, you might want to think about vinyl windows, which are durable, affordable and have a modern look.

The most expensive windows are double-hung windows. They are more intricate than single-hung windows, and so are more costly. Single-hung windows are the most budget-friendly on the market. Aluminum and vinyl are the most affordable frame options.

If your area has higher than average energy costs, it may be beneficial to replace all your windows at once. Replacing all your windows at once can greatly improve your home's energy performance, and could save you money on your energy bills over time. This is especially beneficial in a place like Charleston, where energy costs tend to be high.

If you live in a rainier climate like Charleston, you should wipe away any debris or dirt buildup on the windows often. Additionally, you ought to inspect your windows monthly to make sure they're working correctly. It's also a good idea to get a professional to inspect your windows once a year for any hidden damages or issues.

Yes, many window companies provide financing options for their customers. Some installers offer low-interest or no-interest loans, although you may not qualify if your income is on the higher end, while other companies offer unique financing plans with terms and conditions that vary depending on the project.

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