The Glass Underground

The Glass Underground Glass Fusing studio offering workshops, studio rentals, retail sales, glass gallery and online shop.
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The Glass Underground is a full-service glass fusing and public access studio, offering comprehensive studio rentals, glass fusing supplies, and an art and gift gallery. You'd be hard-pressed to find a better-appointed studio space. There's a wide-open work area with movable work tables and a whole wall of strip cutting stations. There is also an adjunct classroom for powders, plasters, and chemic

als. We have nineteen kilns of all shapes and sizes, an incredibly extensive mold library, and a fully furnished cold working room containing all the equipment you need for professional quality glass finishing.

HAPPY HOLIDAYS! -
12/22/2025

HAPPY HOLIDAYS! -

Craig Mitchell Smith’s Fish Workshop was AMAZING!
12/06/2025

Craig Mitchell Smith’s Fish Workshop was AMAZING!

The cutest, most amazing flower arrangement I’ve ever gotten! It’s from a wonderful student, featuring Georgie!!!! 🩷🩷
10/12/2025

The cutest, most amazing flower arrangement I’ve ever gotten! It’s from a wonderful student, featuring Georgie!!!! 🩷🩷

As usual, professional looking projects coming from beginner students attending our Intro Class: You’ll Love Glass! So t...
09/23/2025

As usual, professional looking projects coming from beginner students attending our Intro Class: You’ll Love Glass! So true, so true!

Broken / Fired!
09/14/2025

Broken / Fired!

Beautiful strip cut drops!
09/11/2025

Beautiful strip cut drops!

Perfectly symmetrical tack fused drapes! It’s incredible how students come up with so many different design styles for t...
09/01/2025

Perfectly symmetrical tack fused drapes! It’s incredible how students come up with so many different design styles for their drapes in our Intermediate Intensive workshop.

Interesting screen printings with glass powder. Lovely bright colors in thick, multi layering!
08/29/2025

Interesting screen printings with glass powder. Lovely bright colors in thick, multi layering!

Wonderful Pattern Bar plates! Check out the visual edges of the bars. Well done!
08/22/2025

Wonderful Pattern Bar plates! Check out the visual edges of the bars. Well done!

Sandblasted designs coming from our Intermediate workshop. All well done!! # students
08/14/2025

Sandblasted designs coming from our Intermediate workshop. All well done!! # students

3 Dimensional Pattern Barring! A very unique take on Pattern Bars! Students were very excited about this discovery. So w...
08/04/2025

3 Dimensional Pattern Barring! A very unique take on Pattern Bars! Students were very excited about this discovery. So were we!! Well done.

Very interesting projects produced by students attending our Unique Pattern Bar workshop! What do you think?
07/24/2025

Very interesting projects produced by students attending our Unique Pattern Bar workshop! What do you think?

Address

167 Washington Valley Road
Warren, NJ
07059

Opening Hours

Tuesday 10am - 5pm
Wednesday 10am - 5pm
Thursday 10am - 5pm
Friday 10am - 5pm
Saturday 10am - 5pm

Telephone

(732) 384-7504

Website

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