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TRUSTED BY ALTADENA, CA HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon223
    Verified glass block window services reviews

Top-Rated Glass block installation pros in Altadena - Updated Nov 2026

AG GLASS
5.0(
32
)
Stained or Specialty Glass - Install or Replace

Serving Altadena, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Credit card accepted

"Detail-Oriented & Fast — AG Glass is the Best! AG Glass did an outstanding job installing glass enclosures on two of my showers. When Jorge went to pick up the hardware I had chosen, he noticed it wouldn’t match my champagne bronze sink and shower fixtures. Instead of just installing it, he called me right away and worked with me to find the perfect match. That kind of attention to detail and customer care is rare, and he handled it without causing any delays. The price was very fair, they came out almost immediately, and the work was completed quickly without sacrificing quality. Everything looks beautiful, and I couldn’t be happier. I highly recommend AG Glass for their professionalism, speed, and top-notch craftsmanship."
Response time7 hrs
Response rate92%
1 neighbors recently requested a quote
Avatar for J. Michael Designs, Inc.
J. Michael Designs, Inc.
4.9(
31
)
Stained or Specialty Glass - RepairStained or Specialty Glass - Install or Replace

Serving Altadena, CA and surrounding areas

Approved

In business since 2008

Free estimates

Warranties offered

"Michael loves glass and finds beauty in its many incarnations. He created an exquisite front door piece for my house 9 years ago. All that door has done is look gorgeous. Haven't had a lick of trouble with it. And, Michael repaired an old glass tile for me too -- at cost even -- because he appreciated it as much as I do. The company also made glass inserts for cabinet doors which are lovely - more banal than the dramatic entrance but equally trouble free. I would hire them again in a heart beat."
Master Tub Window - Close Up
Large Scale Repairs
Entry - Close Up
Beautiful Dome Ceiling
Master Tub Window

+21

Response time7 hrs
1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for JD's Stained Glass
JD's Stained Glass
4.9(
53
)
Stained or Specialty Glass - Repair

Serving Altadena, CA and surrounding areas

Approved

In business since 1994

Free estimates

Customers say: Quality work

"Raul did the most perfect, artistic repair of the stained glass window in the door of our entry way. I made the window 40 years ago, in great detail in a stained glass class that I took. It was my second window and very challenging with beautiful colored antique glass with designs of ribbons weaving through flowers. My son accidentally cracked a piece of glass many years ago. I was afraid to have someone attempt to fix it because I thought it would be impossible. Raul's work was magnificent!!! He was able to match the different glass pieces that had broken over time. I couldn't be happier, just wish I would have called him years ago. Raul has my very highest recommendation. We are super delighted with the results."
Response time12 hrs
5 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Huizar Glass and Mirror
Huizar Glass and Mirror
5.0(
7
)
Stained or Specialty Glass - Install or Replace

Serving Altadena, CA and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"Hired Huizar Glass to do my shower doors and they did not disappoint. The owner, Daniel is an ex union glazier. With very high quality expectations. Very fair price and finished the job in a very timely manner. I will hire him for my next project."
Response time2 hrs
Response rate97%
4 neighbors recently requested a quote
Avatar for McCormick Home Builders, Inc.
McCormick Home Builders, Inc.
4.7(
42
)
Stained or Specialty Glass - Repair

Serving Altadena, CA and surrounding areas

Approved

In business since 2017

Free estimates

Customers say: True professional

"We could not be happier with our new bathroom, thanks to McCormick! Khaled was knowledgeable and really took the time to understand our style preferences. The whole team was great about keeping the workspace tidy, which we appreciated. Now, we have a bathroom that feels luxurious and welcoming. Highly satisfied with their work!"
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+1

Response time6 hrs
Recommended by17%of homeowners
Avatar for EJ1 Glass & Mirror Inc.
EJ1 Glass & Mirror Inc.
5.0(
2
)
Stained or Specialty Glass - Repair

Serving Altadena, CA and surrounding areas

Approved

In business since 2023

Free estimates

"I absolutely love how my shower turned out! Everything looks so beautiful, clean, and modern. The attention to detail really shows, from the gorgeous tile work to the glass doors and fixtures. I especially love the built-in bench and the handheld shower, which make the space both stylish and practical. The whole shower feels so much more open and luxurious than I imagined. I’m really happy with the results and couldn’t be more pleased with how everything came together. I would definitely recommend!"
Patio sliding door
Patio sliding door
7 neighbors recently requested a quote
Alpha Glazier
5.0(
2
)
Glass Blocks - Install - For Business

Serving Altadena, CA and surrounding areas

Approved

Free estimates

Credit card accepted

Offers commercial services

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We provide professional services at affordable prices and no job is too big or small. We look forward to earning your business! Contact us for a consultation and let’s get started! \n

4 neighbors recently requested a quote
Avatar for Affordable Sliding Door Repair
Affordable Sliding Door Repair
4.9(
55
)
Stained or Specialty Glass - Install or ReplaceStained or Specialty Glass - Repair

Serving Altadena, CA and surrounding areas

In business since 1991

Credit card accepted

"After an attempted break-in, and two days of empty promises by  my contractor, I called Affordable late one afternoon frantic to get my front door repaired and secured. "Lia" called right back. She was very friendly but explained that no one could come by for four days. I ended up finding another company to come right away. The next day, Lia called again and said someone could come the following day but I explained that most of the work had already been done. I really appreciated her going the extra mile to squeeze me in as soon as they could, and calling me back to see if they could still help.
I didn't use them this time, but I will definitely remember this company the next time I need work done of this nature.
"
Sliding Glass Door
Sliding Glass Door Repair
Patio Door Repair
Recommended by100%of homeowners
Avatar for AA Millennium Glass
AA Millennium Glass
4.6(
88
)
Stained or Specialty Glass - Install or ReplaceStained or Specialty Glass - Repair

Serving Altadena, CA and surrounding areas

Free estimates

Emergency services offered

Credit card accepted

"They did a great job. We were really impressed with how responsive they were - they came and gave us an estimate while the shower was still being built and installed the glass as soon as it was possible to do so - so there was no delay at all. Very happy with the end result."
Additional Photos
Additional Photos
Additional Photos
Recommended by90%of homeowners
Avatar for Alta Sierra windows
Alta Sierra windows
4.6(
176
)
Stained or Specialty Glass - Install or ReplaceStained or Specialty Glass - Repair

Serving Altadena, CA and surrounding areas

In business since 2001

Free estimates

Emergency services offered

"The job was during the first half of March 2019 for a 35 year old, 28 two- and three-story townhouse unit complex in Pasadena, California/trendy Playhouse District. As the current and prior/numerous years condo association president, I have had many experiences with contractors, including roofing, painting, plumbing, landscaping, and Chris Coyle is by far the most competent, reasonable, reliable, cooperative, fair and most professional of all the contractors. I would most highly recommend his services. During the plus two-week installation, Chris as company boss was "on top of job" because actually he himself and his assistant were installing/"doing the heavy lifting" for all of the new windows. This clearly illustrates his commitment/pride in his craftsmanship. Also, he is very knowledgeable about the window product/Milgard because he thought it best for this job to actually remove most of the old window frames, not customary for a/this "retrofit" versus "replacement" window installation. He was willing to do the extra work at no additional cost in order that the new window frames were not wide/distracting but thinner/minimal/open/clean/more open/glass configuration to enhance the overall modernization of the complex. I "gambled" with this new look for improving the complex, and Chris made not only the complex look good but me as president as well. Every- one is thrilled by the windows results, even asking "why didn't 'we' do this earlier?' I and the other homeowners do not hesitate at all in recommending Christopher Coyle and his Alta Sierra Windows company to any other homeowner. Richard, president, Oak Knoll Village homeowner association. (Thanks Chris!)"
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Recommended by96%of homeowners
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Glass Block Windows FAQs, answered by experts

Heavy glass tends to be more expensive than thin glass because it is stronger and more durable. In most cases, ¼-inch-thick glass is ideal for mirrors, and ⅛-inch-thick glass is ideal for residential windows. Heavier glass isn’t always necessary, and can be more challenging to hang or install. Work with a local window installation pro for replacement or new construction windows.

Glass block windows aren’t fire hazards; fire-rated glass block windows can increase your home’s fire safety. Modern glass blocks are made with materials that can resist high temperatures and prevent fire spread. Most offer a 45-minute fire rating, while some increase it to two hours. Compared to the typical 20 to 90 minute rating for a double-pane window, glass block can increase your home’s safety in the event of a fire.

Most installations take 1-3 days, depending on the number of blocks and customization requirements.

Glass block mortar is the best choice for glass block window units. It is specifically formulated for glass block window installation. Glass block mortar is usually a mixture of Portland cement, sand, and special chemicals. It is a white mortar that is applicable inside and outside your home. Do not use regular tile mortar because it may not have the binding strength and flexibility required for glass block windows.

Glass block installation can be relatively expensive due to the range of material costs and the labor time to assemble this type of specialty window. The process proceeds slowly as the glass does not absorb moisture from mortar and silicone caulk takes longer to harden, leaving spacers to hold up the structure until the caulk or mortar begins to cure. Plus, if your current windows have structural issues or damage, you’ll need to repair them before beginning the project, increasing your bottom line. 

The Altadena, CA homeowners’ guide to glass block window services

From average costs to expert advice, get all the answers you need to get your job done.