The Glass Guru
Windows & Doors
Serving Duluth, MN
From Google Business Profile
4.7
146 Google reviews
Hours
| Monday | 8:30 AM–5 PM |
| Tuesday | 8:30 AM–5 PM |
| Wednesday | 8:30 AM–5 PM |
| Thursday | 8:30 AM–5 PM |
| Friday | 8:30 AM–5 PM |
| Saturday | Closed |
| Sunday | Closed |
Google categories: Glass & mirror shop, Door shop, Glass repair service, Shower door shop, Window installation service, Window supplier
View on Google Maps →Last checked October 19, 2026.
More from Google Business Profile
Listed features
- Accessibility
- Wheelchair accessible entrance
- Wheelchair accessible parking lot
Photos on Google: 125
Recent Google reviews (excerpts)
Written by Google users, not by EdgeLocal. EdgeLocal has not verified them and does not show reviewer names.
4 out of 5 stars · Aug 2026 · Owner replied
The owner Dan was very promt. Explained what needed to be done. Said they were 3 weeks out in getting to us. It was 6 weeks before they came to replace the glass. It was expensive, but agreed to have it done. I would have liked better…
5 out of 5 stars · Apr 2026 · Owner replied
I am very happy with the custom glass shower door The Glass Guru made and installed in my upstairs bathroom. It looks great and works well. Their customer service, technicians, and estimator were all very friendly, polite, and…
5 out of 5 stars · Apr 2026 · Owner replied
Exceptional service. Had a shower glass wall and door installed. They ensured that the finished glass was perfect. The installers were courteous and professional. I am extremely happy with the product and installation. I highly recommend…
The owner replied to 4 of the 5 most recent reviews Google showed.
From Google Business Profile, last checked October 19, 2026.
About window installers in Duluth
Window contractors replace and install energy-efficient windows and patio doors. Window installers measure and replace old windows with insert or full-frame units, install new construction windows, egress windows, patio doors and storm windows, and fix drafts, rot and failed seals.
Typical cost: $650–$1,500 per window installed. See the full cost guide
Typical U.S. ranges from industry sources (2024–25); not EdgeLocal data. Your quote will vary with scope, materials and location.
Questions to ask this contractor
- Compare U-factor and energy ratings: Look for ENERGY STAR ratings for northern climates.
- Ask about installation method: Confirm flashing, insulation and trim details.
- Check lead-safe practices: Pre-1978 homes need EPA RRP certified contractors.