We are proud to report that J.C. Tonnotti receives a majority of it’s clients from the referrals of satisfied customers. But don’t just listen to us, hear what some of our clients have said. Read these Google Reviews, watch some of these video testimonials, before and after photos, and written testimonials.

Martha LanzaMartha Lanza
18:43 15 Apr 22
We are so pleased with the experience we just had with JC Tonnotti Window Co.!!From the quoting process to the building of our sunroom, we had only positive interactions with Joe and his TEAM. We have very high standards and we were impressed with their professionalism, excellent workmanship and punctuality. A very special thank you to Chris, Mike, Matt, Carlos, Mauricio, Dale, Steve and Gil for a job well done.Congratulations to Joe and Faith Tonnotti you achieved your company’s mission of, “exceeding your clients' expectations by offering superior craftsmanship and outstanding customer service "With gratitude,Martha and Octavio LanzaBristol, CT
Sylvia SquiresSylvia Squires
18:41 25 Mar 22
First Installation:We were very pleased with all the employees of J. C. Tonnotti we have had contact with from the sales person to the office staff to the installers. The quality of the windows and door as well as the workmanship when your crew came to install them last month was obvious. They arrived promptly, reviewed the rooms where the installation was to take place, and got right to work. They were organized, respectful of our property, diligent workers, and cleaned up completely before leaving; in other words, professional. Any interactions with your workers was polite. The crew leader gave us a clear demonstration of how the windows work for cleaning, etc. All in all, it was a very positive experience and we have already placed an order for more windows and another door to be replaced by J.C. Tonnotti.Second installation:We recently had a second round of windows and a new front door unit installed by J. C. Tonnotti. The workers arrived on time, reviewed the rooms in which they were doing the installations and started right to work. They worked quickly and efficiently, leaving openings to the outdoors (in February) for as short as time as possible. One team member had to leave to pick up some additional materials which delayed their progress, but they stayed until the job was finished and completely cleaned up. Our house is much brighter and warmer thanks to the fine job they did.
Aileen ZapponeAileen Zappone
00:41 03 Mar 22
We had a front screen door as well as a smaller kitchen and large living room and kitchen window installed in January 2022. The installers were here for 6 hrs and everything was done efficiently and professionally. You wouldn't know they had even been here! Cleaned up nicely when they were done. Joe came to see us before the work was done and went over everything. We have already noticed how much warmer our home is...on top of how wonderful the windows and door look. Would highly recommend them for your home improvement needs...Thank you!!!!
Danielle tyburskiDanielle tyburski
19:43 28 Feb 22
I love the windows and they are really beautiful and nice and they did a really great job installing the windows I my condoThank u for the awesome windowsDanielle TyburskiRichard & Lois Detuccio
Antoinette CareyAntoinette Carey
15:24 14 Feb 22
J C Tonnotti replaced all the windows in my house. From the initial meeting to the installation of the windows, it was clear that this is a reputable, professional company focused on the client. Chris and his crew clearly were expert installers but were also very respectful. Although it was a cold day in February, they worked quickly and efficiently to avoid excess heat loss! When they left the house, each room was as clean as when they entered. Beautiful windows, excellent company.
Melissa CastilloMelissa Castillo
13:27 17 Aug 21
The staff is extremely friendly, the work they did on my window is absolutely amazing. 10/10 would recommend
11:11 08 Apr 21

Video Testimonials

Video Testimonial about roofing, siding & doors

Before and After

Wood Rot

Before, during and after photos of wood rot and repairs. December 7th, 2015

Letters from Clients

Click the letters for a larger view

Written Testimonials

Kitchen Bay Window

“Joe Tonnotti created a beautiful bay window for our kitchen space. Steve and his crew did a beautiful job installing the window and left a great impression with their courteous dispositions and their wonderful clean up after the job was completed. I would highly recommend JC Tonnotti for any window needs! Thank you guys!! We will be calling you again soon.” ~ Betsy Eggers (5 stars on Google Review)

Appreciate promptness after a break-in

“J. C. Tonnotti did a great job replacing a door and window after a break-in at my home. They responded to my need for help quickly and the workmanship was excellent. The office staff did a great job of keeping me informed during the process. Thank You!” ~ D. Wrenn (5 stars on Google Review)

Quick, clean, picked up after themselves

“We had our new windows installed in 2 segments (last summer and Dec. 2017)…Mr. Tonnotti was very professional and did much of the measurements and ordering himself. His staff was super and the guys doing the install were amazing! Quick, clean, picked up after themselves. Showed us the proper way to clean the windows along with disassembling them! Highly recommend JCT!!” ~ A. Leone (5 stars on Google Review)

All Condo Window Replaced

“Just yesterday I had all my windows in my condo replaced by J.C. Tonnotti. They were the least expensive and most professional company I could have chosen. They had the job completed in less time than they quoted as well. If you need windows replaced at a great price with top-notch service, use these guys. Out of Southington CT.” ~Ethan Gombossy

Over and above!

“What a pleasure it has been doing business with your company, from Trish in the office to Dean, Tyler and the installing team – Trevor, Dan, Shaun and Vance. On installation day I had no power from the storm (October Snow 2011) and therefore, no heat. They went over and above for me. when everything was completed all was completely cleaned and back to normal. I can’t thank you enough. Special thanks to Trevor for giving me a fire in the fireplace! Happy Holidays to All! ” ~Joan L. of Cheshire, CT

Excellent Quality Windows Installed When Promised And Promptly

“We had Tonnotti install all new windows in our sun porch and kitchen several years ago and they did a fantastic job. The windows were of excellent quality and they were installed when promised and promptly. We recently needed a new bay window to replace he largest window in the front of our house and thought of Tonnotti immediately. The service was excellent and the new window looks amazing. We would recommend this company to anyone.” ~David L. of Cheshire, CT

Replacement Windows – Beyond Customer Service

“In the summer of 2008, we had two large windows replaced by J.C. Tonnotti Windows. At that time, we were very pleased with the quality of the windows and with the installation, and we knew then that we would have more new windows installed by this reputable company.

In April of 2010, we met with Joe Tonnotti about replacing a few more windows, but the price was so good that we decided to replace all of the remaining windows in our home.

True to his word, Joe sent out a crew on June 2nd, and the men replaced all of our windows in one day. I couldn’t believe they were able to do that, but Joe had explained that he would send a large enough crew to install all of the windows in one day.

By five o’clock in the afternoon, my windows were in, the crew had cleaned up both inside and out, and I received detailed instructions on how to take out the windows for cleaning. I wasn’t just told how to do it; I was shown.

Our new windows are great, and for the first time in decades, I don’t feel a breeze coming through the windows! From start to finish, my husband and I were completely satisfied with the job done by J.C. Tonnotti Window Company. We recommend this company without any hesitation.”

~Maryellen and Kevin of Forestville CT

Replacement Windows – Professional Staff

“It is without hesitation that I enclose my final payment for the installation of our new Harvey replacement windows. My wife and I could not be happier with the entire process of doing business with you and your associates. The window quality is superior and we have seen an immediate difference in the interior temperature of our home, the elimination of normal street noise and all other weather occurrences. The windows are sleek in design and their overall look has improved the interior and exterior appearance of our home.

From the beginning, you and your entire staff were very knowledgeable, professional, and courteous. We felt a comfort level in dealing with all of you.

Please know that the installers, Tyler and David, did an excellent job throughout the process of removing, installing, and cleaning up the work areas. I am one of those homeowners who like to watch, ask questions, and learn from those tradesmen working on my home. They both welcomed my presence, and questions. Please convey to each of them my sincerest appreciation.

In closing, please be assured that I would not hesitate on recommending your company to anyone who is seeking window replacement.”

~ John & Diane K. of Southington, CT

Water & Wood Rot Damage – Reconstruction Recovery Plan by J.C. Tonnotti

“In the fall of 2008, we decided to replace our 30-year-old windows, entry doors and sliding glass patio doors in our house. After interviewing nine different contractors, we selected J. C. Tonnotti Window Company to do the job. We based our decision on the quality of the products, competitive price, and outstanding recommendations from prior customers. As it turned out, it was the best decision we could have ever made.

When the job was started, one of your workers noticed a large quantity of rotted wood around the frame of one of the sliders. Further investigation revealed extensive water and wood rot damage that could have caused perilous damage to our house. After consulting a structural engineer, he indicated we were lucky that the whole southwest corner of our house did not collapse. He also told me your recovery plan for reconstruction was excellent, and the prompt actions of you and your quality craftsmen probably saved our house from collapse. For this, we will be eternally grateful to you.

After the job was complete including repairs and new siding, we already notice a difference in heating fuel consumption as well as reduced noise in the house. We receive compliments from all of our neighbors and even casual strangers walking in the neighborhood. The windows and doors look terrific.

It would be our recommendation to anyone searching for contractors to install windows or doors to hire a full service contractor such as J. C. Tonnotti Window Company. As we learned, you never know what you are going to find once you start the job and having someone on site that is capable of handling all types of repairs instantly is priceless.

Once again, thank you for doing an outstanding job with the windows, doors, sliders, emergency repairs, new siding, new gutters and gutter guards.”

~ Patricia & George C. from Manchester, CT

Window Replacement Recommendation

“….we had occasion to have several replacement windows installed in our home. We felt it appropriate to tell you how impressed we were with your personnel.

…sales person, Dean Cochrane, gave us a refreshing, no-nonsense, straight sales approach.

We could not have been more pleased with the installers, Dave & Sean, whose workmanship was only surpassed by their professionalism.

We have already recommended your company to several people who are contemplating window replacements next year, and we will continue to do so in the future. Please extend to Dean, Dave and Sean our feelings and wish them our very best. ” ~ Lynn & Ron of Hartford CT

Replacement Doors & Re-Installation of Security Storm Door

“We recently had your company replace our front entrance door and re-install a security storm door that presented several difficult problems.

Mr. Rick St. Amant did a magnificent installation job. We witnessed his professionalism and craftsmanship and his explanation of various correction options with us demonstrated that the best possible work was being accomplished. (and he was fast, neat and courteous!)

For these reasons, my wife and I are happy to recommend and endorse your Company, quality of product and excellent service to prospective clients. Please feel free to relate our experience to new customers.” ~Hercules & Terry of Wethersfield, CT

Installation of Majesty Windows

“Heartfelt thanks for the fabulous job you wonderful crew did on the installation of our Majesty windows. My husband couldn’t say enough about your very professional, polite, extremely knowledgeable, and absolutely delightful, A+ crew of men.

Sincere thanks for allowing me to take my time (5 months!) while trying to painstakingly decide between the Classics and the Majesty.

I am absolutely in love with our new windows, and with our choice to go with the wood. Please tell Tyler that the first thing one of your crew said, as he was overlooking our pool, was ‘Wow, a bay window would look absolutely fabulous here.’

When Tyler came for a final measurement, he, very honestly and sincerely, without an ounce of salesman pressure, mentioned the same thing. When I came home from school and walked into my living room the first thing I said was, ‘I absolutely love these windows, but I should have listened to Tyler; I wished I had gone the extra mile and ordered the bay window!’

It was truly our pleasure to have done business with you. Please feel free to send any new perspective customers our way. We are your biggest fans!” ~Diane & Robert of Avon, CT

Window Replacement Provide Energy Savings

“One major incentive for me to buy these replacement windows was efficiency. My June bill was a whopping $160.00 dollars and after the installation, the following month my bill was in the nineties, a savings of approximately seventy dollars. I was quite elated with these numbers but also realize how much air was being lost, depleting the internal energy I was seeking. I wanted to share this with you, and say I appreciate the product and the fine customer service.” ~Sherry of Wethersfield, CT

Self-claimed Picky Client Returns to J.C. Tonnotti

“You guys are great! It was a welcome respite from my usual dealings with businesses, to deal with you guys. I’d do it again in a heartbeat. The crew you sent my way to install the windows were efficient, professional, knowledgeable and friendly.

I’m a fairly picky person, buy your guys were right on the money. I watched them, asked a few pointed questions, listened to their answers and then left them alone. My wife was amazed. ‘You’re not watching everything they do?’ she asked. ‘Nope,’ I said.’They’re good at what they do, there’s no need for me.’ Take my word for it, that’s not my normal reaction. However, I believe in calling ‘em as I see ‘em and what I was is that Tonnotti’s is worth the time and the money. It’s that simple.

And, based on my experience with the windows, I contracted with you for new siding and gutters. Again, I’ve no complaints. All the questions I had for the installers were either answered with full and understandable explanation, or they were dealt with immediately to my expectations. Either way, the end result was the same; everything was installed as it should be and I’m satisfied.

If there is ever anybody you want to send my way with questions about the quality of your work, feel free. I’d be happy to tell them about how you do business. Besides, they can see your work and it speaks for itself.” ~Jim of Southington, CT

Great Replacement Windows – Great Professionalism

“I am a recent customer of J. C. Tonnotti. I normally don’t do this, but I wanted to say thanks for the great service you provided in the recent window installation at our home in West Hartford (20 windows and a door).

From start to finish, your business provided the utmost of professionalism and support. Your sales staff was educated and thoughtful, your installers were polite, clean, and very pleasant (and what a job installing, very clean in the house and out, and the windows are rock solid and very well sealed), and I can’t tell you how happy I was that you were able to meet our short deadline in terms of getting the windows installed before our house got painted. You and Harvey both nailed the date and the house looks great!

My wife and I were extremely pleased with how everything turned out and have been speaking your praises to all our friends who need their windows overhauled. Thanks again for the great service, product and installation.” ~Jen & Gary of West Hartford, CT

Many Home Improvement Projects By J.C. Tonnotti

“Over the course of the last eight months, your company has replaced not only the windows in my older home but repaired/replaced the garage doors, as well as rebuilt my sunroom into a usable office for my work. Throughout the entire process, your sales and office staff have been courteous and responsive to all my needs. The crews have been, on time, worked neatly and efficiently. Their final work product has been something that I am very satisfied with as I step back and look at my house.” ~R. K. Black of Rocky Hill, CT

Another Happy Replacement Window Project By J.C. Tonnotti

“I just wanted to write to tell you that I am very happy with my new windows. I am looking forward to the heavy rains predicted on Thursday so that I finally don’t see any water infiltration! I wanted to also compliment your crew. They were so nice and a pleasure to have in my house. They were neat and cleaned up well after themselves. I would be happy to recommend your company if anyone is looking to have their windows done. Your customer service was excellent – my questions (and I know I had a lot) were always answered and I never had to wait.” ~Kathleen, East Haven, CT

Window Replacement | Painted Siding | Shutter Garage Door Replacement By J.C. Tonnotti

“Wanted to thank everyone for everything. I am enclosing pictures of the house before and after. Everyone I work with could not believe the transformation. The crews that worked here were very friendly and pleasant. Again, thank everyone for us!!!!” ~Denise



Condominium Window and Door Replacement Project By J.C. Tonnotti

“During 2014, Sheltered Ponds Condominium Association selected J.C. Tonnotti to replace over 500 windows and 100 sliding glass doors on all 17 of its buildings (113 condo-units) within a requested short-time frame. With a professional, experienced and polite crew, J.C. Tonnotti provided our residents with an efficient and error-free installation of the windows and sliding-glass doors over a dedicated two month period. The residents of the association couldn’t be more pleased with the service that was provided to them by your company’s employees. If asked, we would highly recommend your company to others who wish to undertake a similar size project.” ~Sheltered Ponds Condominium Association