Ohio's #1 Glass Block Provider

Glass Block HQ installs secure, energy-efficient windows and custom glass block features.

We give free estimates to suit your schedule. Our craftsmanship is the best in the industry, and our work is backed by a lifetime warranty.

*Offering Virtual or In-Home Consultation

Make your home secure, and keep your energy bills low.

Glass Block House and Garage Windows

We treat your home like it's our own, we provide the best value, and we do things the way they should be done.

Made in the USA

We build 100% of our glass block windows right here on the West side of Cleveland, Ohio. Our glass block material is imported from Europe, not Asia.

Value, not Advertising

We deliver superior value to our customers. We don't overspend on marketing or overhead, and we pass the savings along to you.

Family-Owned

We don't have shareholders to answer to, so we do the right thing every time for our customers, employees, and community.

We treat your home
like it's our own.

Since we began in 2004, we've built a
reputation for pride in our work, customer
service, and superior value.

Our 30,000 satisfied customers in
Northeast Ohio will tell you the same.

Glass Block Headquarters Financing

We offer financing options subject to approved credit, so you can upgrade your home on your terms and your timeline.

Our simple process is designed to take the stress and the hassle out of home improvement.

Make your home shine, with peace of mind.

See what your neighbors say about our high-quality work and customer service.

"We had Dave and Brandon install 7 basement windows. What a transformation of my 102 year old house. I’m sure they were original. They were both very professional and thorough. Cleaned up after themselves. It did take several months to get the install date but they came on that date and on time! Price was very fair. I highly recommend Glass Block HQ."

"They were very easy to work with and worked around my schedule. There were no high pressure sales tactics. Dave did a fantastic job installing the windows....and he left my basement cleaner than when he arrived. I would use them again."

"I had 8 new glassblock windows installed in my basement. James from Glass Block Headquarters came in and did an outstanding job! I would recommend them to everyone, these are good people that do quality work at a fair price! Thank you GBH!"

"Decided to give them a call for an estimate on basement windows which are 50+ years old. They came out within a couple days and provided the estimate. The guy was very nice and kind and did not try and over-sell me like other companies I have dealt with! I put the deposit down and scheduled the installation for the next week. The installer came out and knew exactly what he was doing. He removed my old windows, installed the new ones, and cleaned up any mess that he made. The windows look gorgeous! The mortar is done very professionally and this is a great investment to my house. I will definitely recommend Glass Block Headquarters to anyone!!"

"Had 7 new glass block windows installed in our basement and we are so happy with the finished product. Dave was fantastic, nice, and did excellent work installing. Highly recommend! Oh, and their office cat is adorable too."

Estimate done right away, office provided a date of installation and crew arrived exactly on time. Removed old 105 year-old basement windows and replaced with new glass block cemented in. They did a great job in filing in with cement the uneven bottom sills. The crew knew what they were doing and cleaned up when done. Great job and I only wish I would have done this years ago. The new block windows provide twice the light in the basement as did the old single pane windows from a century ago.

4.8 Stars, 90 Verified Reviews

We have a 4.8 star rating or higher on all 5 categories: Price, Punctuality, Professionalism, Responsiveness, and Quality.

BBB A+, Since 2004

We've been doing things the right way for a long time. When it's your home, you need a company that you can trust.

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Ohio's #1 Glass Block Provider

Glass Block HQ installs secure, energy-efficient windows and custom glass block features. We give free estimates to suit your schedule. Our craftsmanship is the best in the industry, and our work is backed by a lifetime warranty.

*Offering Virtual or In-Home Consultation

Make your home secure, and keep your energy bills low.

We treat your home like it's our own, we provide the best value, and we do things the way they should be done.

Made in the USA

Value, not Advertising

Family-Owned

We treat your home like it's our own.

Since we began in 2004, we've built areputation for pride in our work, customerservice, and superior value.

We offer financing options subject to approved credit, so you can upgrade your home on your terms and your timeline.

Our simple process is designed to take the stress and the hassle out of home improvement.

Make your home shine, with peace of mind.

To get started, schedule your free 30-minute estimate by calling (216) 941-5470.

Our estimator will come to you to help you decide which windows best suit your needs, then measure and provide a quote. When you’re ready, we will get your windows into production.

After we custom build your windows to suit your needs, our professional installers will install your windows in only 1 day, with excellent workmanship.

After the installation is complete, you can enjoy your brighter and more energy-efficient home with peace of mind.