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September 2024 by Corinne Abbott
John Knowlan is the best contractor we have worked with. Very knowledgeable, thinks ahead, listens to your preferences then gently guides you to the best choices, products are high quality, price is great, seeks deals for you where he can, always offers to return if there are any problems, very responsive. His workers stay with him a long time - a very good sign.
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May 2024 by Laurie Smith
This company is terrific. Their workmanship is great. The entire process from estimate to completion was easy with no problems.
We had some scheduling issues because of permitting but KCSI was willing to accommodate our needs. I highly recommend them.
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January 2024 by Rita Galiano
Excellent service. Responsive and they take care to do top quality work. Also appreciate the candid conversation around options. Highly recommend!
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November 2023 by Michael Green
Mike and his team at KCSI replaced all of the windows in our home that was built in the 60s. It's made a big difference in the look both from the inside and out and an overall more energy efficient home.Great work, but taking the time to write this review because of the exceptional level of communication from Mike and his team throughout the project and post the project when we've had questions about the windows or even other projects on our house. Mike's been available and a valued counsel as we navigate projects/budgets being first time home owners.
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September 2023 by Kris Kaymanesh
I recently purchased a 40+ year old home. As it is our intention to have this home as our forever home, my wife and I were very specific about the quality of newly installed products. After researching the local market, we decided to go with KCSI to replace all of our windows as well as two rear sliding doors. I met with John Knowlan and from the early stages, he was so patient with us. His crew came by once to install some of the windows as we were trying to fix one half of the home and then they came back to complete the job. A few days after the final install, we noticed some minor service issues. after calling John, he was so nice to accommodate the repairs within our expected time frame. BTY, their estimate was by far the lowest of all other companies who had also provided us the same exact products.It doesn't end there. Our front door was badly in need of help. Once I spoke to him, he informed his crew to remove the old façade and replaced it all with new one. He saved me thousands of dollars avoiding the need to replace the entire door.If this is not great customer service, I don't know what would be. I strongly recommend KCSI for any small or big project anyone may have.Services: Window installation
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May 2023 by Dan
Mike was excellent to work with. The quote was thorough, value was excellent, a true professional interaction, great communications, and extremely knowledgeable in the tradecraft. I would highly recommend.
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March 2023 by Deborah MacPherson
We had birds living in our eaves and a power line mounted to rotten wood that took a lot of orchestration with Dominion and our electrician - KCSI came into replace the eaves, helped us coordinate the schedule, replaced the gutters and fascia boards and installed vented soffit panels. The work and materials are excellent quality and a big problem is now fixed forever. Great communication and highly recommend.Service: Roof repair
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February 2023 by R G
KCSI installed new siding on our house and did an outstanding job. Mike McCabe really knows his business including housing construction and it shows. I asked lots of questions going in and during the job and he was knowledgeable in his responses and it was obvious that he was experienced and capable (as are his employees). That was important to me because prior to talking with KCSI I interviewed a number of other siding contractors and a lot of them just wanted to sell me. I highly recommend KCSI.Service: Installation
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January 2023 by Brian Blume
KCSI recently replace a couple windows, a patio sliding door, and another exterior door. Their work was excellent, they were so respectful and clean, and we're very pleased with the overall experience! Mike (one of the owners) was so kind and easy to work with. He never tried to sell us anything, but simply explained what they could do and answered all the questions we had along the way. Communication was good throughout the process (even though we had to wait awhile for manufacturing of the doors and windows). Great value for the work they did. Highly recommend this team!Services: Window installation
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April 2022 by Marc Brown
KCSI was wonderful. John and his team helped us on two gutter issues that turned out great. One involved bending a downspout around some stone work and the other involved replacing the end of a gutter to prevent a squirrel from making it her home. They were professional, courteous and reasonable with their estimates. I have even referred him to my mother for work on her house. Can't recommend them enough.Service: Gutter installation
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February 2022 by David Parker
We needed the trim on our house wrapped and vinyl soffets replaced, as well as some vinyl siding replaced. John Knowland gave the estimate and was the most pleasant person to work with. His estimate was clear and detailed. When the crew came out to work on the house, they were very skilled and provided a level of workmanship that was above and beyond what we were expecting. They showed up on time each day and was able to complete the work in one less day than quoted. John himself, went above and beyond expecatations in getting replacement parts needed that were beyond the scope of the work. I cannot recommend KCSI Construction enough if you want a fair price and excellent work. I plan to call them for other work needed. Thank you John!
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August 2021 by Meghan Benson
John at his team at KCSI are wonderful - he installed gutters, gutter guards, downspouts and new siding trim on my home two summers ago. He is incredibly responsive and took the time to provide a detailed quote and walk me through it. His installers were on time, neat, and did quality work.This summer, birds (or some other critter) managed to damage some drip edge next to the gutters. Even though it was a small job (and even though it was not caused by any flaw in his workmanship), John's team made time to come within in a few days and reinstall the drip edge for me. While they were up on the roof, they also noticed a few other loose shingles and fixed those for me. They took pictures of what they were seeing and explained what they were fixing and why.I can't recommend John and his team enough! Thank you, John!Services: Roof repair
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May 2021 by Sarah Kehrt
Excellent. We had a plumbing issue which required the siding and subsequent layers removed to access. John and his team came quickly, got to work, kindly worked out paperwork our insurance would accept, and then just as swiftly they came back to repair it once the plumbing was fixed. Highly recommend!!!!
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May 2021 by Carl Eichenlaub
KCSI did a great job with a number of issues. John Knowlan was very helpful. KCSI fixed damaged siding, a window that was difficult to open, and gave me suggestions regarding my brick chimneys in need of repair. They scheduled repairs to my large wooden shed. They advised me all through the process. Informed me of rain delays, and worked around my schedule to get the work done. John and his team did a great job repairing my old shed, replacing a wall, installing PVC boards and a gutter and downspout. The shed now looks new. KCSI did not try to sell me any work I didn't request. They were helpful, knowledgeable, on-time, communicative, and pleasant. They were easy to deal with throughout the entire process. I will use them in the future for roof, window, siding, and outdoor construction.Services: Roof repair
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March 2021 by John McAfee
Mike and the KCSI team just installed new siding for my single family home (Feb '21). They worked around a snowstorm to keep schedule for us and other customers. They were flexible, courteous, efficient, effective, clean, honest, diligent, gracious, and priced fairly. Mike takes care of his employees and his employees support one another to deliver high quality results. We love our home's new look and I look forward to the low maintenance cost savings from the vinyl siding. They'll be my first call for a new roof.Service: General repairs & installation
