Expert Window installation service Serving the Upstate

Energy-efficient windows and doors installed in-house across Greenville, Spartanburg, and surrounding communities.

5.0 9+ Google reviews
What We Do

Window installation service in Greenville, SC

From quick repairs to full projects, we help you choose the right window installation service services without pressure or guesswork.

Not sure what you need? We will assess your project at no cost.

Call (864) 381-8702
Professional window installation crew at work on a residential home, showcasing tools and materials used in the replacement process.

Since 2026

Serving locally
Greenville County

Our Story

Windows done right,
start to finish

Brilliant Windows was founded in Greenville, South Carolina, with one clear purpose: give homeowners a window replacement experience they can actually feel good about. Too many companies in this space make big promises, drag out the install, and disappear when something goes wrong. We set out to do the opposite.

Our founder started Brilliant Windows after watching homeowners get burned, time and again, by contractors who overpromised and underdelivered. Slow timelines, inflated prices, and no clear point of contact when problems came up. That pattern was the reason to build something different from the ground up.

Our Full Story
How We Work

How We Work

From your first call to the final install, we manage every step in-house. Here's what to expect.

Schedule Your Appointment

Call us or reach out online to book a time that works for you. We'll confirm your appointment and answer any initial questions about your window or door replacement.

In-Home Assessment

Our team visits your home to measure your windows or doors, discuss your goals, and review options with you. We'll explain what we find and walk you through the next steps.

Professional Installation

Our in-house crew handles the entire installation from start to finish. We manage the work carefully and keep you informed throughout the day.

Final Walkthrough

We review the completed work with you, answer any questions, and make sure everything meets your expectations. You'll know exactly who to call if you need anything down the road.

We handle all the details. You get a smooth experience and a finished product you can trust.

Where We Work

Window installation service Across
the Upstate

Based in Greenville, SC — serving every corner of the Upstate.

Primary Service Area

Greenville, SC

Greenville's mix of 1940s bungalows and newer suburban builds creates two very different window replacement challenges, and the city's 26 annual freezing nights make weak seals obvious fast.

Cities & Communities We Serve:

  • Greenville
  • , Taylors
  • , Mauldin
  • , Simpsonville
  • , Berea
  • , Wade Hampton
Greenville, SC Services

Five Forks, SC

Spartanburg, SC

Greer, SC

Travelers Rest, SC

Clemson, SC

Anderson, SC

Easley, SC
Client Reviews

What Greenville County customers say.

5.0
9 Google reviews

Worked with us?

Leave a Review

Tyler and Carter were very friendly and professional. Super knowledgeable as well! If you ever need windows done, go to them, you will not regret it!

Josh Davis Google review · September 2026

had a GREAT experience with this company. everybody we interacted with were friendly and helpful, and the window itself is mind blowing. did not actually know i was passionate about windows until talking with carter. we’ve been very happy and blessed to have found brilliant windows, i’ll be recommending them to all my people for anybody that needs window work!

natalie harris Google review · September 2026

GREAT windows, & Great customer service!

Emerson Hamrick Google review · September 2026

Super professional and great service. Thanks!

princess polly Google review · September 2026

I live with my 75-year-old grandmother that I take care of. Windows had been on our list for a long time, Due to the fact that they were The original wood windows from the 60s. We got a couple of quotes that were crazy out of our price range. Carter knocked our door and told us about the amazing Promotion that they had to be an advertising home". I’m happy to say that the windows fixed our problem along with saving us a significant amount on energy bills. I appreciate the work and transparency. Carter took his time to make sure that my 75 year-old grandmother had all the information she needed. Very Happy with the end result!!

Reynaldo Rodriguez Google review · September 2026

Ready to become our next happy client?

(864) 381-8702
FAQ

Common Questions About Window Installation Service in Greenville, SC

Answers to the questions customers ask most before hiring a contractor. Not seeing yours? Call us. We are straightforward about our process, pricing, and expectations.

We primarily serve Greenville, SC, Five Forks, SC, Spartanburg, SC, Greer, SC, Travelers Rest, SC, Clemson, SC, Anderson, SC, Easley, SC. If you are outside these areas, call us. We take select projects beyond our standard service radius for the right scope.

Yes, we serve Greenville, Spartanburg, Greer, Travelers Rest, Clemson, Anderson, Easley, and Five Forks. Call us at 864-381-8702 to schedule your appointment.

Our team removes your old windows, prepares the frames, and installs new energy-efficient windows. We manage the entire process in-house to ensure quality work.

Yes, we replace sliding glass doors using the same hands-on approach we use for windows.

Still have questions?

Call us directly. Real answers, no scripts.

Call (864) 381-8702
Find Us

Proudly Based in Greenville, SC

Stop by, call, or book online — we're always nearby when you need us.

Hours

  • Monday 9:00 AM - 5:00 PM
  • Tuesday 9:00 AM - 5:00 PM
  • Wednesday 9:00 AM - 5:00 PM
  • Thursday 9:00 AM - 5:00 PM
  • Friday 9:00 AM - 5:00 PM
  • Saturday 9:00 AM - 10:00 AM
  • Sunday Closed
Get Started Today

Get Your Free Window Estimate

Brilliant Windows serves Greenville, SC and the surrounding area with professional window installation service. Free estimates, clear options, no pressure.

In-House Installation
Energy-Efficient Windows
Customer-First Approach
Full-Service Process
Call (864) 381-8702

Mon–Fri 9:00 AM - 5:00 PM · Sat 9:00 AM - 10:00 AM · Fast response on every request

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