Window Installation · Charleston, SC/Updated June 13, 2026
The Best Window Installation Companies in Charleston, SC
From quality materials to customer service, these window installation companies excel in various aspects, ensuring your home shines.
MHMaya Hendricks · Home Services Editor Updated June 13, 2026 · Next review July 2026
Editorially independent6 companies evaluated
cover story
★ Editor's ChoiceCharleston Window & Glass
94Score
Latest update · June 13, 2026: Initial ranking published. 6 Charleston-metro window installation businesses evaluated, top 6 ranked by Vetted Score.
In Charleston, SC, effective window installation is crucial for energy efficiency and curb appeal. With the subtropical climate, quality windows can help keep homes comfortable while reducing energy costs. Choosing the right company can make all the difference in achieving long-lasting results and enhancing your home's value.
We evaluated six local window installation companies based on customer reviews, ratings, and overall service quality. Our analysis considers factors such as installation expertise, product offerings, and customer satisfaction, ensuring you have reliable options for your window needs.
6window installation companies evaluated in Charleston
4.53average rating across the field
1.0Kcustomer reviews analyzed
Cityvetted analysis of public Google review data, updated June 13, 2026.
How we evaluated all 6 window installation companies.
To rank the best window installation companies, we analyzed customer feedback from various sources and aggregated ratings. Each company's performance was assessed based on the volume and quality of reviews, allowing us to create a transparent Vetted Score. No company paid for placement, and our rankings are updated monthly.
This ensures that our recommendations reflect the latest customer experiences. Our goal is to provide Charleston residents with a trustworthy guide to finding the best window installation services available.
The Vetted Score: six weighted factors
Customer sentiment25%
Rating quality20%
Review volume & velocity20%
Website trust signals15%
Service breadth10%
Business longevity10%
Sentiment is measured by AI analysis of review text, recency-weighted, with verified-pattern checks to discount suspicious review bursts.
With a rating of 4.8 from 106 reviews, Charleston Window & Glass is praised for its exceptional customer service and high-quality installations. Customers appreciate the prompt responses and professionalism of the team. This company is best for homeowners seeking a reliable and friendly service. However, some reviews note longer wait times during peak seasons.
Icon Window and Door boasts a rating of 4.9 from 42 reviews, making it a standout for value and quality. Reviewers commend the affordability and efficiency of their installations. This company is ideal for budget-conscious homeowners wanting quality without breaking the bank. However, the limited number of reviews means its reliability remains promising but unproven.
NewSouth Window Solutions has a solid rating of 4.6 from 162 reviews, with many praising its energy-efficient products and knowledgeable staff. Customers appreciate the variety of windows offered and the professional installation process. This company is best for those prioritizing energy efficiency. However, some reviews mention higher prices compared to competitors.
The Glass Guru has earned a rating of 4.5 from 309 reviews, noted for its comprehensive glass solutions and friendly service. Customers value the expertise in both installations and repairs. This company is best for those needing specialized glass services. However, the extensive service offerings may lead to longer project timelines.
Window World of the Lowcountry has a rating of 4.3 from 297 reviews, recognized for its affordable options and extensive selection. Reviewers appreciate the prompt service and quality of installations. This company is ideal for those seeking cost-effective solutions. However, some feedback indicates variability in installation quality. A review base that deep is hard to game, and the score barely moves across it, which is the clearest consistency signal we track. Most of what reviewers hire it for is cost-effective solutions. It serves Charleston and surrounding areas, with $300 to $600 per window pricing, and the honest trade-offs are variable installation quality.
Charleston Glass LLC has a rating of 4.1 from 125 reviews, noted for its personalized service and attention to detail. Customers appreciate the hands-on approach and willingness to address specific needs. This company is best for those seeking customized solutions. However, the limited review count may raise concerns about consistency.
How to choose a window installation company in Charleston
Choosing the right window installation company involves considering several key factors that can impact your overall satisfaction and investment.
Experience and Reputation
Look for companies with a strong track record and positive customer feedback to ensure quality work.
Product Variety
Consider companies that offer a wide range of window styles and materials to match your home's needs.
Warranty and Support
Choose companies that provide solid warranties and customer support for peace of mind after installation.
Pricing Transparency
Select companies that offer clear pricing and no hidden fees to avoid surprises during the project.
What it costs
What window installation costs in Charleston
The cost of window installation in Charleston can vary significantly based on factors such as the type of windows, the complexity of the installation, and the company you choose.
Basic Vinyl Windows$300 to $600 per window, ideal for budget-conscious homeowners.
Energy-Efficient Windows$600 to $1,200 per window, offering improved insulation and energy savings.
Custom Windows$1,200 to $2,500 per window, tailored to fit unique designs and specifications.
Full Home Replacement$5,000 to $15,000 depending on the number of windows and materials chosen.
Frequently asked questions
How much does window installation cost in Charleston?
Window installation costs in Charleston range from $300 to $2,500 per window depending on the type and complexity of installation.
What factors affect window installation pricing?
Factors include window type, installation complexity, and additional services like removal of old windows.
How often is this ranking updated?
We re-run the full analysis monthly with fresh review data. Last updated June 13, 2026.
Our verdict
For most Charleston homeowners: Editor's Choice Charleston Window & Glass
For those seeking top-notch window installation services in Charleston, Charleston Window & Glass stands out for its exceptional customer service and quality installations. Following closely is Icon Window and Door, which offers great value and efficiency. Lastly, NewSouth Window Solutions excels in energy-efficient options, making it a solid choice for eco-conscious homeowners.
Cityvetted
