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Verified Reviews for Glass Block Service pros in Mertztown, PA

*The Angi rating for Glass Block Service companies in Mertztown, PA 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 Mertztown, PA 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 October 25, 2025

Find Glass block pros in Mertztown

Avatar for Alderfer Glass Co.

Alderfer Glass Co.

144 TELFORD PIKE
4.80(
70
)
•Approved Pro

Alderfer Glass Co.

144 TELFORD PIKE
4.80(
70
)
•Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
37 local quotes requested

Alderfer Glass is the premier Glass, Mirror and Window provider in the Delaware and Lehigh Valley since 1961. Family owned and locally operated for three generations. Auto, Residential and Commercial Glass service all under one roof. 4 convenient locations to serve you better. All installers are company employees - we use no subcontractors. Members of National Glass Association, Independent Glass Association, Better Business Bureau, and more! Our goal is the best in product and service for our industry....let our experience work for you! Alderfer Glass is the "Clear Advantage in Glass Products". PA Contract License number PA003018.

"My handyman recommended Aldefer glass as I need to replace the glass in my shower since it was an unusual size. When they were here to measure they mentioned they also could replace my kitchen windows. I was excited, one stop shopping. Well it’s two different departments... They had to come back and remeasure the windows, Another 2 week wait. They would not order until I gave them a 50% deposit (which is OK). They told me it would be 2 wks to get the glass then approx 2 weeks to install. I had to call numerous times to see if windows had arrived and schedule install. Bottomline my 4 wk anticipated install was over 2 months, then the middle glass in the tempered shower shattered during install ( 2 phone calls and 4 Additional weeks later shower complete). Kitchen windows still not right. Flys keep getting stuck between window and screen so I can’t open 2 of 6 windows in my kitchen. Terrible customer service. I have several more windows that I need to replace, they will not get my business. Truly awful experience."

E P on September 2020

Alderfer Glass is the premier Glass, Mirror and Window provider in the Delaware and Lehigh Valley since 1961. Family owned and locally operated for three generations. Auto, Residential and Commercial Glass service all under one roof. 4 convenient locations to serve you better. All installers are company employees - we use no subcontractors. Members of National Glass Association, Independent Glass Association, Better Business Bureau, and more! Our goal is the best in product and service for our industry....let our experience work for you! Alderfer Glass is the "Clear Advantage in Glass Products". PA Contract License number PA003018.

"My handyman recommended Aldefer glass as I need to replace the glass in my shower since it was an unusual size. When they were here to measure they mentioned they also could replace my kitchen windows. I was excited, one stop shopping. Well it’s two different departments... They had to come back and remeasure the windows, Another 2 week wait. They would not order until I gave them a 50% deposit (which is OK). They told me it would be 2 wks to get the glass then approx 2 weeks to install. I had to call numerous times to see if windows had arrived and schedule install. Bottomline my 4 wk anticipated install was over 2 months, then the middle glass in the tempered shower shattered during install ( 2 phone calls and 4 Additional weeks later shower complete). Kitchen windows still not right. Flys keep getting stuck between window and screen so I can’t open 2 of 6 windows in my kitchen. Terrible customer service. I have several more windows that I need to replace, they will not get my business. Truly awful experience."

E P on September 2020

Walmsley Glass

No reviews yet

Walmsley Glass

No reviews yet

We are a stained glass restoration studio that specializes in historic preservation, replication, and custom creation of glass, blown glass, mosaic, windows, and frames of all kind. Our studio of master craftsman, including myself, can make and create any vision you have in mind for your new home project or business front! Give us a call and I hope to chat soon!

We are a stained glass restoration studio that specializes in historic preservation, replication, and custom creation of glass, blown glass, mosaic, windows, and frames of all kind. Our studio of master craftsman, including myself, can make and create any vision you have in mind for your new home project or business front! Give us a call and I hope to chat soon!

Appalachian Preservation Services, LLC

184 Bowers Rd
No reviews yet

Appalachian Preservation Services, LLC

184 Bowers Rd
No reviews yet

Here at Appalachian Preservation we specialize in all things masonry! (New construction, restoration, tuck pointing) Brick, block, or concrete; cosmetic or leakage problems, Appalachian Preservation has you covered!!

Here at Appalachian Preservation we specialize in all things masonry! (New construction, restoration, tuck pointing) Brick, block, or concrete; cosmetic or leakage problems, Appalachian Preservation has you covered!!

Jentre Construction

112 Elsie Ln
No reviews yet

Jentre Construction

112 Elsie Ln
No reviews yet
48 years of experience

Jentre has 4 employees / 2 masons/ 1 carpenter & 1 laborer Subs: Truck drive & all trades necessary for completion of project. Deposit of 30% required with outline payments upon partial completion. Final payment: Most contracts 15 20%

Jentre has 4 employees / 2 masons/ 1 carpenter & 1 laborer Subs: Truck drive & all trades necessary for completion of project. Deposit of 30% required with outline payments upon partial completion. Final payment: Most contracts 15 20%

Finish Line Home Improvements

4201 W Grant St
5.00(
1
)

Finish Line Home Improvements

4201 W Grant St
5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We are a local business that has over 25+ yrs in the residential construction field. We do product assembly/installation, framing, drywall, spackle, paint, trim work, doors, windows, siding, plumbing, and electrical. Additional email - [email protected].

We are a local business that has over 25+ yrs in the residential construction field. We do product assembly/installation, framing, drywall, spackle, paint, trim work, doors, windows, siding, plumbing, and electrical. Additional email - [email protected].

viscomi contracting

810 Sheridan Drive
1.00(
2
)

viscomi contracting

810 Sheridan Drive
1.00(
2
)
20 years of experience

VISCOMI CONTRACTING IN A GENERAL CONTRACTOR SPECILIZING IN ADDITIONS, KITCHENS, CUSTOM BASEMENTS, BATHS, DECKS, ROOFING, SIDING, AND MUCH MORE!! I'M LICENSED IN NJ REG# 13VH04442500 AND PA REG#052603. TONS OF REFERNECES AND NOTHING BUT TOP QUALITY WORKMANSHIP AT REASONABLE PRICES. GREAT PICTURE PORTFOLIO. ALL WORK DONE "IN-HOUSE" FROM START TO FINISH!! FREE ESTIMATES AND 1-YEAR WORKMANSHIPP WARRANTY ON ALL WORK!!

VISCOMI CONTRACTING IN A GENERAL CONTRACTOR SPECILIZING IN ADDITIONS, KITCHENS, CUSTOM BASEMENTS, BATHS, DECKS, ROOFING, SIDING, AND MUCH MORE!! I'M LICENSED IN NJ REG# 13VH04442500 AND PA REG#052603. TONS OF REFERNECES AND NOTHING BUT TOP QUALITY WORKMANSHIP AT REASONABLE PRICES. GREAT PICTURE PORTFOLIO. ALL WORK DONE "IN-HOUSE" FROM START TO FINISH!! FREE ESTIMATES AND 1-YEAR WORKMANSHIPP WARRANTY ON ALL WORK!!

Palace of Glass

2340 Powell St, Suite 108
5.00(
5
)

Palace of Glass

2340 Powell St, Suite 108
5.00(
5
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Welcome to your production house for custom glass: we design and handcraft glass panels and sculptures for your needs! Call us to get quote now based on square footage! Contact online representative for immediate consultation!

Welcome to your production house for custom glass: we design and handcraft glass panels and sculptures for your needs! Call us to get quote now based on square footage! Contact online representative for immediate consultation!

Avatar for Power Home Remodeling

Power Home Remodeling

2501 Seaport Dr
4.22(
1,055
)

Power Home Remodeling

2501 Seaport Dr
4.22(
1,055
)
Customers say: Quality work
162 local quotes requested

As the nation’s largest full-service exterior home remodeler, we are backed by over 1,000+ Angi Super Service awards and more than one million happy customers. Why? Because we treat each job as an audition. An opportunity to prove ourselves to you. And the results speak for themselves. So make your home all it was meant to be with our unrivaled exterior services. Contact us today for a free, no obligation estimate on replacement windows, roofing, siding, doors, or attic insulation.

"Everyone was very professional. The salesman did an excellent job explaining the quality features of the product. The installers left everything cleaner than they found it."

Loreen U on October 2025

As the nation’s largest full-service exterior home remodeler, we are backed by over 1,000+ Angi Super Service awards and more than one million happy customers. Why? Because we treat each job as an audition. An opportunity to prove ourselves to you. And the results speak for themselves. So make your home all it was meant to be with our unrivaled exterior services. Contact us today for a free, no obligation estimate on replacement windows, roofing, siding, doors, or attic insulation.

"Everyone was very professional. The salesman did an excellent job explaining the quality features of the product. The installers left everything cleaner than they found it."

Loreen U on October 2025

Showing 1-10 of 16
Glass Block questions, answered by experts

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

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

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. 

DIY is possible for small projects, but professional installation ensures proper sealing, structural integrity, and a precise finish.

Glass blocks provide privacy, natural light diffusion, insulation, and a decorative aesthetic.

The Mertztown, PA homeowners’ guide to glass block services

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

See all articles

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