10 Best Window Replacement Companies in Mount Pleasant, SC

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Last Updated: February 25, 2025

Whether you want to improve your home's value or decrease your energy bills, replacing your windows is a great idea. If your windows are on the older side, 25–30% of your home’s heat or cool air could be leaking out, according to the Department of Energy. In Mount Pleasant, this can add an extra $521 per year on your electricity bills. If you can't decide between window installers, this guide is the best place to get started. Keep reading to find the best window installation companies in Mount Pleasant.

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  • Holds high customer ratings
  • Offers energy-efficient products
  • Provides a lifetime labor warranty
Best Customer Service
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Top 10 Best Window Replacement Companies in Mount Pleasant

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

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User Rating

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

Educational website

Free assessment

Good customer service

Services Offered

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

Glass Doctor Home + Business of Charleston and Summerville

Glass Doctor Home + Business of Charleston and Summerville Logo

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

Price transparency

Educational website

Good customer service

Services Offered

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

West Shore Home

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

Good customer service

Price transparency

Educational website

Free assessment

Services Offered

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

NewSouth Window Solutions

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

Educational website

Price transparency

Free assessment

Good customer service

Services Offered

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

Palmetto Glass & Mirror Inc

Palmetto Glass & Mirror Inc Logo

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User Rating

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

Timely service

Good customer service

Educational website

Free assessment

Services Offered

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

Brothers Builders & Renovation LLC

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

Timely service

Price transparency

Free assessment

Services Offered

Energy-efficient options
Window replacement/installation

Window World of the Lowcountry

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

Price transparency

Free assessment

Good customer service

Educational website

Services Offered

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

Coastal Siding & Windows, Inc.

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

Good customer service

Timely service

Free assessment

Price transparency

Educational website

Services Offered

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

BC Roofing and Handyman Services

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User Rating

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

Good customer service

Free assessment

Timely service

Educational website

Price transparency

Services Offered

Glass showers
Window replacement/installation
Mirrors
Energy-efficient options

Muhler

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User Rating

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

Good customer service

Educational website

Price transparency

Free assessment

Services Offered

Window replacement/installation
Custom window designs
Vinyl frames
Storm/impact windows
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 Mount Pleasant?

Window installation and replacement costs depend on a number of factors, including the number and size of the windows, the materials you choose, and how difficult your windows are to access or install. On average, Mount Pleasant homeowners spend roughly $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

Installing new energy-efficient windows can greatly improve your home's noise reduction, comfort, appearance, value, and insulation. Some clear signs it's time to invest in new windows include the following:

  • Condensation issues, fogging between window panes, or rotting window frames allowing moisture intrusion into the home.
  • Drafts and cold air leaking in through old, loose-fitting windows.
  • Inefficient and outdated window styles that detract from your house's curb appeal.
  • High energy bills and discomfort due to poor insulation.
  • Windows that are hard to open, close, or lock properly due to wear and age.

How To Choose a Window Company

Finding a truly qualified windows installation contractor is critical to a successful project. Below, we cover the most important considerations when it comes to making your selection.

Experience

Make sure you select an experienced local installer with a long record of successfully installing and replacing windows. Companies that have served Mount Pleasant for years are more likely to have a deep knowledge of the local climate and local homeowners' needs. Get references from recent clients to confirm a company provides quality installations.

Certifications

Look for installers that are backed by major window manufacturers and accredited by top industry associations, including the Fenestration and Glazing Industry Alliance, formerly known as the AAMA. Appropriate credentials mean that a provider has received suitable training in installation best practices. Ensure installers are employees rather than subcontractors. Verify that any technicians assigned to your job hold the right certifications.

Reputation

Spend time reading through online reviews, checking the Better Business Bureau, and asking for local references. Review customer feedback to verify that the company regularly provides good workmanship and service. Steer clear of companies with complaints of shoddy or unfinished work.

Process

The most qualified company will take time to provide you with a detailed project plan, timeline, expectations, and reviews of all material and installation options. Beware of vague quotes or timelines that don't provide enough specifics upfront. Look for continual communication throughout the process to avoid surprises down the road.

Warranties

Look into window installers that offer guarantees on labor and materials. This demonstrates confidence in their work. Seek out companies with unlimited lifetime warranties that can pass to new homeowners.

Materials

Ensure that a company works with durable, energy-efficient window brands that fit your budget. Look for enhanced UV protection, design flexibility, and good energy ratings. Confirm the window materials have their own manufacturer warranties as well.

Frequently Asked Questions About Window in Mount Pleasant, SC

In Mount Pleasant, the best time to install windows is during the winter when the temperature is not as high, so the windows can fit and settle properly. A professional local window installer in Mount Pleasant will be able to explain when the best time is to install windows on your house.

The ideal type of replacement windows for your Mount Pleasant home depends on the year your home was built –the average house in Mount Pleasant was built around 1995. For older homes, you may want to consider efficient windows such as double-pane windows, which are designed to keep your home cool in the summer and warm in the winter. Wood frames also have a timeless look that's great for older homes. For more modern 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 complex than single-hung windows, which makes them more costly. Single-hung windows are the least expensive on the market. In terms of frames, aluminum and vinyl are the most affordable options.

The process for window installation typically includes taking measurements, removing the existing windows, installing the replacement windows, checking for proper sealing, and caulking around the edges of the frames. Extra steps may be necessary depending on the kind of window being installed.

If you live in a rainier climate like Mount Pleasant, you should wipe away any debris or dirt buildup from the windows often. Additionally, you should check your windows every month to make sure they're still functioning properly. It's also a good idea to have a professional inspect your windows annually for any hidden damages or issues.

Yes, most 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.

Window companies in Mount Pleasant typically offer a wide range of services, including measuring and installing new windows, fixing existing windows, swapping out window glass, and installing window treatments. They may also offer extra services such as weatherproofing or cleaning.

Other Mount Pleasant, SC Home Services

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