Replacement Door Installations

JCTonnotti specializes in replacement door installations in Connecticut. Elevate the aesthetic appeal and security of your home with our premium selection of entry doors and patio doors, sourced from trusted manufacturers like Therma-Tru's Fiber-Classic and Harvey.

Entry Doors

The revolutionary Therma-Tru’s Fiber-Classic door was one of the very first fiberglass front entrance doors. The design changed how future doors are produced. Therma-Tru’s Fiber-Classic door establishes the standard for all fiberglass entry doors on the market today. The Fiber-Classic door has the warm, rich look of hardwood, with all of the advantages of a Therma-Tru fiberglass door.


Fiber-Classic has the look of hardwood with the features and advantages of Therma-Tru fiberglass.

Oak Collection

The Oak collection is impact-resistant fiberglass that looks like a real wood doors. The patented AccuGrain™ technology gives the look of high-grade wood with all of the durability of fiberglass to the Oak Collection.

Smooth Star

The Smooth Star Entry Door collection is an excellent value in a fiberglass entry door, these doors are made of rugged compression-molded fiberglass with deep detailed panels that create beautiful shadows and contours on your door’s surface.

Harvey French patio doorsPatio doors

Harvey® vinyl patio doors are some of the best user-friendly vinyl patio doors on the market.

Vinyl patio doors are ruggedly constructed and reinforced with heavy-duty aluminum for enhanced durability. Welded sash corners provide maximum strength while multi-chambered frame extrusions further increase the stability and thermal efficiency of these premium doors.

PHOTO: Harvey French doors and sliding patio doors are available in white or almond finishes and come with heavy-duty screens.

Contact JC Tonnotti for replacement doors and door installations.

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We are happy to discuss your home improvement needs. J.C. Tonnotti Window Company prides itself on quality work at competitive prices.