
Serving Harwinton, CT and surrounding areas
Approved
In business since 1961
Free estimates
Warranties offered
"I highly recommend Proedge for windows. The quality of the windows and representatives are stellar. You wonâ t be disappointed."





+40

*The Angi rating for Window Service companies in Harwinton, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Window Service needs.
*The HomeAdvisor rating for Window Service companies in Harwinton, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Window Service needs.
Last update on July 13, 2026

Serving Harwinton, CT and surrounding areas
Approved
In business since 1961
Free estimates
Warranties offered
"I highly recommend Proedge for windows. The quality of the windows and representatives are stellar. You wonâ t be disappointed."





+40

Serving Harwinton, CT and surrounding areas
Approved
In business since 2006
Free estimates
Warranties offered
"I cannot say enough positive things about Action windows. From the informative and non-pushy sales person to the incredible installation crew, it was a very positive experience. The price for the high quality windows was very competitive and fair. The installation crew was on time and very considerate. I work from home and they really worked around me. The cleaned up everything"





+7

Serving Harwinton, CT and surrounding areas
Approved
In business since 2007
Free estimates
Warranties offered
"Great!! Brian accomplished a very professional job on door lock and window shade installations. Very efficient and pleasant to do business with. Offers such a wide variety of handymen services, I would definitely consider his services for other projects as well. Nice workmanship!"



Serving Harwinton, CT and surrounding areas
Approved
In business since 1933
Free estimates
Emergency services offered
"Everything from first contact with the office staff to set up the appointment to when the installers left was a completely positive experience!
Office schedulers found us an evening appointment around our work schedules and were very friendly.
Al Vestro, our salesman, contacted us prior to arrival, and even showed up early once checking if we were available. He carefully went over the options, and didn't try to "upsell" at all. He explained that a higher sun-filtering glass was available, but generally not needed in New England. Also mentioned the option of "divided lites" to go on the outside of the window to retain the original look of the sash bars, and advised if we had a historic home it would be required but since we had just a "normal" home, it would mean more difficult cleaning without a lot of real difference in look. I appreciated his honesty in showing the options without the hype to sell the more expensive options. He recommended the best option for our home and neighborhood. Also, there was no pressure to sign the contract right then and there. He provided the estimate at the time of the inspection and then left it up to us to decide and get back to them if we wanted to proceed. He also explained the financing options with their financing company and we opted for the one year same as cash option so we didn't have to write a check for the deposit. Much easier option! Al estimated 8-10 weeks between when we signed the contract and when the windows would be installed. This put us at about a week or so after Thanksgiving. Not ideal, but we wanted them in for the winter.
Once we signed the contract, David DiGiorgi called and set up the appointment to measure the windows. My husband was home that day, and said he was very punctual, friendly and professional.
David called earlier this week and said the windows were ready and set up a day for the installation - which was today. Nov. 6th, at least three weeks earlier than expected! it couldn't have worked out better, considering we are having a warm spell with temps in the 70's today (New England, early November - go figure!)
We were told the installers would be at the house at 8:30. The first truck arrived at 8:20 and all the installers were on site by 8:30. We took care to move things away from the windows before they arrived so they could get right to work. I did not take things off the walls because we were told we would not have to. But they had to do some heavy deconstruction work to get the old windows out and the guys took the collectible plates off the dining room walls so they wouldn't fall and break. I so appreciated that care and thoughfulness.
They started the actual work around 8:45 and were done installing all 9 windows by 1:00. They cleaned up everything, and other than a little dirt on the kitchen counter, and of course the new windows, you would not have known we had any work done. It was spotless - cleaner even than it was when they arrived!
While it is very early to really judge if they are sealed well, we carefully looked at all the windows and can see no gaps in the seals.
I am more than satisfied with the whole experience with DiGiorgi. They may not be the cheapest contractor out there, but I found their customer service and workmanship to be top notch. I will definitely use them again when it comes time to replace the other 9 windows and the roof. And I have no hesitation recommending them to anyone looking for quality products and workmanship, and professional, easy to deal with people for their next home improvement project.
"





+33

Serving Harwinton, CT and surrounding areas
Approved (Corporate)
In business since 2000
Free estimates
Warranties offered
"Installed 22 new windows, 2 entry doors, and new sliding glass door. Outstanding service, price, and installation. Highly recommend."





+55

Serving Harwinton, CT and surrounding areas
Approved
In business since 2004
Free estimates
Emergency services offered
"I am satisfied with the job that Home Genius has done here with my windows. The job was very neat and the new windows look perfect. I am pleased with everything they did!"





+57

Serving Harwinton, CT and surrounding areas
Approved
In business since 2018
Free estimates
Emergency services offered
Based in West Haven, Connecticut, our team has provided an excellent, affordable service to more than thousands of houses over the years. We are committed to supporting our customers throughout the evaluation process, during the service itself and are available to answer any queries once the work is complete. \nWe are a licensed and fully insured company aiming to respond to all requests involving our services within 24 hours or less. Our professional and knowledgeable staff have a combined experience of over 12 years within the construction, air duct cleaning, and landscaping industries, ensuring guaranteed satisfaction with every job. \nWe pride ourselves in providing a safe, hazard-free environment and maintaining respectful, cordial communications with all of our clients. All technicians can be relied on to keep project sites clean both during and after the work is complete. \n





+1839

Serving Harwinton, CT and surrounding areas
Approved (Corporate)
In business since 1991
Free estimates
Credit card accepted
"Brian did a great job replacing our bed room window,he was courteous and his work was perfect,thanks again Brian."





+13

Serving Harwinton, CT and surrounding areas
Approved
In business since 2022
Free estimates
Offers commercial services
"In the past, I have cleaned my own windows. This is the first time I have used a professional window cleaner, and I was a little nervous about how the windows would turn out because Iâ  m pretty fussy. I am so pleased with Delâ  s Window Cleaning! They were easy to reach, responsive, punctual, professional, and they did a great job. Will definitely use them again. HIGHLY RECOMMEND."





+16

Serving Harwinton, CT and surrounding areas
Approved (Corporate)
In business since 1997
Free estimates
Warranties offered
"Over fifteen years, I originally met him for window install estimate, and we have been using him ever since for several of my properties! He is quick to respond to any necessary repairs and emergencies, should you have them come up!"





+61
From average costs to expert advice, get all the answers you need to get your job done.

Do you need impact windows to protect your home in the event of a hurricane? Find out how much impact windows cost, including the windows themselves and the labor to install them.

Is it time to upgrade your home’s windows? Learn more about window replacement costs, considering various window sizes, styles, and energy efficiency.

A new arched window can boost curb appeal, home value, and energy efficiency. Learn how much arched windows cost and what factors to consider.

Restoring old windows is a great way to improve the appearance of your home. Costs vary depending on the age of the windows, the number you are restoring, and the window’s material.

Need to replace your old windows or install new ones? Double-pane glass is probably the way to go. Use this double-pane windows cost guide to set your budget.

Find out how much it costs to install vinyl windows in a single room or throughout your house—and see how the size and style of the windows impact the overall price.