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Exterior-door repairs and office glazing feature in customer accounts of Commercial Storefront Services in South Windsor. In November 2023, a reviewer writing for Concordia said the crew corrected longstanding door problems and restored proper operation, praising the prompt attention. A January 2023 customer described Brian and the crew installing a frosted-glass borrowed light in an office suite and praised their care. The company’s website advertises custom fabrication and installation, commercial storefronts, curtainwalls, interior and specialty glazing, security glazing, skylights, and custom windows and doors. A May 2025 reviewer praised Ken and his team and expressed interest in using them for other stores. Its Connecticut home improvement contractor registration is active. Google lists a 5-star average from six ratings.
Very good service, Ken and his team are very professional and skillful. Looking forward to work with you in future for my other stores.
On behalf of all of us at Concordia, we would like to express our sincere gratitude for the great job that your workers performed on our exterior doors. We were having problems with them (some for quite a period of time). Your company took care of those problems and returned the doors to excellent operation. To say that we at Concordia are appreciative of your quick attention to all that you did is an understatement.
The team from Commercial came out and installed a frosted glass borrow lite in our office suite which completely transformed the space. It looks great. Brian and the crew were talented and conscientious. Ken and his team are the folks I contact for my glazing needs.
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1 change recorded — last scanned Oct 30, 2026.
Typical Connecticut range for this kind of work, from regional averages — not a quote from Commercial Storefront Services Inc.. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$3,750 – $10,300
Typical exterior project around $7,050
New beam and termite-damaged rim joist repair4.7
Next-day patch on a tree-damaged roof4.6
Next-day shingle repair4.4
12 years in business3.7
Completed before move-in3.6
State-verified Home Improvement Contractor license since 20212.4
Cedar clapboard and rot repairs4.1
