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*The Angi rating for Glass Block Service companies in Frederic, MI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Glass Block Service needs.

*The HomeAdvisor rating for Glass Block Service companies in Frederic, MI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Glass Block Service needs.

Last update on April 22, 2026

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Avatar for Northern Exteriors Company, Inc.
Northern Exteriors Company, Inc.
New to Angi

Serving Frederic, MI and surrounding areas

In business since 1958

Northern Exteriors Co., Inc. has been in the home improvement business since 1958. We carry workman's compensation, liability insurance, and our craftsmanship is second to none. We here at Northern offer something never seen in the construction industry, a LIFETIME warranty on our labor! Our work entails: job supervision by an owner every 3-5 days, our windows carry a LIFETIME warranty, and the jobsite is thoroughly cleaned and trash is hauled away. When we start a job, we stay on it until it is completed within a reasonable amount of time. We are members of the Kalkaska, Gaylord, and Grand Traverse chamber of commerce. We are also members of the North Central Michigan Home Builders Association. All of our work is repeat or referral from satisfied customers. We warranty all of our labor with the exception of roofing for life! Our roofing carries a 12 year warranty!

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Glass Block questions, answered by experts

Luckily, glass block windows need minimal maintenance. Other than regular cleaning, the only maintenance involved in having a glass block window is inspecting for cracks every year and applying sealer to the mortar joints if the blocks are set in masonry mortar. Glass block windows hold up well against wind and moisture better than traditional windows and are not prone to rot.

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.

Installing glass block windows has benefits and disadvantages, as with most materials. The pros and cons can vary depending on the type of glass block and the window location.

Pros

  • Maintains privacy while letting light into the bathroom

  • Energy efficient

  • Sealed to prevent drafts

  • Aesthetically pleasing

  • Strong and secure

Cons

  • Costly to install

  • Challenging installation

  • Challenging repair

Glass block windows typically last for 15 to 30 years, which is slightly less than the 20- to 50-year lifespan of standard windows. You can extend their life by resealing them every few years. Professional installation is also key to ensuring the windows are placed correctly and will function properly for years to come. A professional installer will have the necessary skills, tools, and knowledge to install these features and can identify potential issues like damaged frames or cramped areas during a consultation.

Regular cleaning with non-abrasive cleaners helps prevent buildup and maintains clarity.

The Frederic, MI homeowners’ guide to glass block services

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

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