Dunkin'

3.6
454 reviews

About

Coffee ShopDonut ShopBreakfast RestaurantBakeryBagel ShopFast Food RestaurantTake Out RestaurantDunkin'
Dunkin’ is America’s favorite all-day, everyday stop for coffee, espresso, breakfast sandwiches and donuts. The world’s leading baked goods and coffee chain, Dunkin’ serves more than 3 million customers each day. With 50+ varieties of donuts and dozens of premium beverages, there is always something to satisfy your craving. Dunkin’ is proud to serve Groton, CT for all breakfast and snacking needs. Stop by today to try a classic favorite or a new featured product!

Details

  • Dine-inAvailable
  • DeliveryNot available
  • TakeoutAvailable
  • Credit cardAvailable

Location

Dunkin'
799 Long Hill Rd, Groton, CT
06340, United States

Hours

Reviews

3.6
454 reviews
5 stars
190
4 stars
91
3 stars
50
2 stars
34
1 star
89

What are people saying?

AI-generated from recent customer reviews

Customer Service

Numerous reviews highlighted poor customer service, with reports of rude staff, incorrect orders, and long wait times.

Order Accuracy

Many customers experienced issues with incorrect orders, including missing items and wrong food preparation.

Cleanliness and Hygiene

Some reviews mentioned concerns about cleanliness, particularly regarding food preparation and employee hygiene.

Consistency

Customers noted inconsistency in food and drink quality, with some items being served cold or not prepared as requested.

Positive Staff Interactions

Despite the negative feedback, there were also mentions of friendly and helpful staff members who provided good service.
  • AH
    Ally Holdridge
    Dec 21, 2025
    2.0
    out of all bagels other than cinnamon raisin, the lady at the window was nice, but the guy on the microphone not so much. we scanned a coupon for a free drink, but it did not register. once we got to the window, the drink was not on the order. then they added two. then charged for the drink that was supposed to be free. disappointed but not surprised lol i try to not go to dunkin anymore. edit: they also didn’t put the cream cheese on the bagels, and there was plenty of employees inside. if i wanted to pull over to put cream cheese on my bagel, id go to the grocery store.
  • EB
    Eddie B
    Nov 30, 2025
    2.0
    Stopped in on a Sunday morning ordered the $6.00 meal deal on the kiosk, put in sandwich but neglected to enter coffee which i thought was included as the meal deal is sandwich, medium coffee and hash browns , asked counter staff about the coffee and was told if I want the coffee and hash browns have to order them again and couldn't cancel my order , great customer service have been drinking Dunkin coffee for many years time to get coffee elsewhere or brew at home , done with Dunkin and from some of the reviews no great loss
  • BV
    Brenden Vine
    Oct 31, 2025
    5.0
    Great Dunkin. Line moves fast and good food / drinks.
  • EM
    Esteban Mendez
    Oct 28, 2025
    1.0
    Went to dunkin today just for a quick bite to eat after class, And i had ordered a sandwich with some loaded hash browns. I was with my friend so we had gotten two coffees as well. I clearly stated 4 and 4 (meaning 4 cream 4 sugar) that may be on me and maybe she didn’t know what that meant but whatever. We come up to the window and a worker brought the coffees to the counter. I then said “those don’t look right” under my breath, assuming i’m gonna go back inside and ask for more cream. She handed us the coffees, and assuming she heard me, continued to say “I made the coffees right by the way”. Not only that, but there was a HAIR of some sort in my hashbrowns, as I continued to look I then found another different colored hair. Keep in mind that I just opened the hashbrowns.
  • SB
    Sean Been
    Oct 28, 2025
    3.0
    I like D'd coffee. And lately been enjoying the food. Fresh bagels. I like.

Frequently Asked Questions About Dunkin'

What are the operating hours of Dunkin' in Groton, CT?

Dunkin' in Groton, CT is open every day from 4:30 AM to 10:00 PM.

Does Dunkin' in Groton offer delivery or curbside pickup?

This Dunkin' location does not offer delivery but provides curbside pickup and delivery services.