DeNisco Roofing and Construction co

4.8 (85)

124 Baker St, Manchester, NH 03103
(603) 674-2071

Claimed
Roofing contractor
Siding contractor
Skylight contractor

Service options

  • Online estimates

Reviews

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Jezzie B

2024-02

Only because it's not possible to give ZERO STARS. First, may I say we never hired them to do a roofing job. The attached photos are what I came home to. I asked why they were set up in our driveway with equipment, machines, ladders and they had their work truck parked in the other space we pay to have plowed. No one answered. Not one word. Not excuse me, not sorry. Nothing. I thought there could be a language barrier. My Spanish is minimal at best. I tried to speak to the person in charge and he was receptive to me in Spanish, but as I said I am limited. I called the "24 hours emergency line" I am still waiting for a call back. Please note the house on the right was having the roof done. They have a full driveway. This is how they chose to set up. The person that disperses the crew is responsible. As I said he has still not bothered to call.

Rich Kocur

2020-05

We got estimates with a list of materials from 4 roof contractors. John's estimate listed all GAF branded materials, where others listed only GAF shingles with unbranded accessories. And when the others matched all GAF accessories thier price was considerably higher. John's crew came early, completely removed old roof, installed all new GAF products, I was particularly impressed with the sheet metal work on the rain drip edge, perfect job. The roof looks great, John included a GAF Weather Stopper System Plus warranty, and Military discount. I could not be happier.

Corey Martin

2023-11

John and crew came out to my home and did a great job on my Roof I highly recommend them. He was on-site working hand in hand with his crew! He went above and beyond answered all my questions I had. I’d highly recommend!Service: Roof installation

Alan Migneault

2022-05

I would highly recommend John Denisco and his company for your roofing needs. I did a thorough research of roofing companies for my home in Nashua. I had one company quote me $18,000 for my ranch style house. I had another company quote me $10,500. I was in sticker shock and then saw that 2 of my next door neighbors had used John Denisco & his company for their roofing needs. They told me that John was an easy guy to talk with and that he had done a great job on their roofs. I was familiar with John's company from my thorough research so I contacted him and got a quote. It was a heck of a lot less and the reviews on the internet were impressive so I decided to go with his company. The workers showed up on time and were friendly to talk with. They came in the morning and were done by the afternoon. John stopped by to ensure everything was going smoothly and stayed until they finished. I had a blast talking with John and we had some good laughs over various subjects. He even did some additional work for no charge. John's services are very fair and I appreciate the quality of work. I will be needing some siding done on my house in the future and will definitely be giving John a call. Again. I highly recommend John & his company for your roofing needs.Sincerely,AlService: Roof installation

Rainbow Pools

2021-05

I did a lot of research and talked to several roofing companies before I went with John. He is prompt, honest, dependable and had excellent communication and kept me informed the entire time. He wasn't the cheapest or the most expensive but was very insistent on a couple aspects of the job that other companies just passed over. His pricing was all inclusive vs. other companies that had separate charges. The crew was diligent, professional and did a great job on my roof and at keeping the grounds clean and safe. Any issues that came up were immediately addressed. I hope to do more business with John again.Services: Skylight installation, Roof installation

Shawn MacDonald

2021-05

I highly recommend John Denisco for your roofing solution. Upon meeting him the first time for a quote, he was amicable and professional, and it was clear he has passion for his work. He assured me that my roof could be replaced in a day, and carried excitement and energy as we discussed how the whole project would go down. I was very impressed with his motivation for taking on the work, and could tell he was head and shoulders above all of the other quotes I got due to his honesty, energy, and integrity. And all of this was before the roofing crew showed up!On the day of the roofing job, his crew arrived early and were very efficient and professional. Within 3 hours, the whole roof was stripped, and by the early afternoon, my new roof was completed. My wife and I were very impressed with how beautiful our new roof looked, and grateful to John and his crew for the job well done. They did a great job cleaning up the property before leaving, and triple checking the ground around the house for nails and debris.Every interaction I had with John was positive. His quote was spot on, and his follow through far exceeded our expectations. We are extremely happy with his work.~Shawn

JE Cruz

2021-05

I wish I can give John and his team more than a 5 star rating. They were phenomenal from the time John came out to give us a quote, to the roof being installed. John quote was amazing, we not only needed our roof done but we also had 2 skylights that needed to be replaced. We had to make some changes to our scheduled because of COVID but John continued to make sure we were okay, and ready when able. When the team got here they moved quickly and smoothly. They took into account everything around the house to keep it safe and from breaking. They cleaned up our yard beautifully, and even replaced some of the stuff we moved out of the way. I would recommend Denisco Construction to anyone and everyone.

Kristal Delahanty

2021-05

John and his crew did an amazing job replacing our roof. His crew was here within a week of giving me an estimate and they had the job done in two days. They were fast, efficient, respectful and honest. John was my contact person from start to finish and he is extremely knowledgeable and stands behind his work. He not only replaced my roof but he also helped solve my ventilation issue which was a big part of why the original roof failed. He could have just replaced it and took my money but he took the time to find a solution to make sure it was done right. They installed asphalt shingles as well as a rubber roof on our Cape, now our roof looks amazing. He even came on his own time to help correct a mistake a previous contractor had made. He stands behind his work which is so hard to find now a days. I highly recommend John and his team!!! I would hire them again in a secondServices: Attic venting, Roof installation

Matt Yee

2020-05

John and his crew are amazing. John and his guys did awesome work. They finished the entire job in 1 day. John spent extra time with me (2 visits to my house) to figure out a solution to the improper roof ventilation on my colonial house. He ended up cutting in a ridge vent and installing some vented drip edge, which now allows my roof to properly vent. He not only replaced my roof, he also solved a mold problem in my attic. I would recommend John to anyone. If I ever need roof work done again, I will hire John.

Jackie Wilson

2022-05

John and his crew did an EXCELLENT job on my roof . I called for 7 estimates and the others just couldn't beat his price. Once I signed the contract, he ordered the materials ahead of time in the event the prices would go up (I wanted to wait until the end of Summer for installation). None of the other contractors mentioned to me they would do this. The installation was topnotch using quality materials. John is professional, honest and a wicked nice guy. His work crew were also professional and very hard workers, I never once observed any one of them just stand around and do nothing. You could tell they took pride in their work. If I ever needed any other work done around my home I wouldn't hesitate a heartbeat to call on John.Service: Roof installation

Adam Gelinas

2021-05

I can not say enough good things about John Denisco and his crew. I have a big multi family home that had multiple layers of roofing that needed to be stripped and replaced. They came in and had it done in 2 days like it was nothing. You would have absolutely no idea that they were even at my house. Thats how good of a job they do cleaning up. They do the job right and he is very fair with his pricing. John is a great to work with and I am so happy I chose to work with him after getting quotes from multiple companies. 10/10 will be recommending to EVERYBODY.

Karen St Louis

2021-05

I highly recommend Denisco Construction. My house was built in the late 1800’s and the roof had 3 layers of shingles and the original boards. From quoting the job to finish of the work, John was very upfront, professional and priced well. The job was started in 1 week of my hiring them for the job. The actual roof was started and completed in 1 day. The roof looks great, and the cleanup that was done was great - my yard looked better than when they started! Very professional crew who really know their work. Thank you John and crew! I will definitely be calling for future construction needs.

Joseph Ciocca

2021-05

My wife and I hired John's Co. To replace the rubber roof on our house in May of 2020, and we are very happy with that choice. We recieved several other estimates, but his was by far the most detailed and had the best warranty. We were putting the house on the market In July. John gave us a written 5 year warranty on his workmanship, which was transferable to the new owners! We are sure that was a big reason why the house sold in 4 days. His crew started when he said they would, and finished in a timely manner, and left the property spotless. I do not think you could find a better roofing Co. In southern N.H. or any where else, for that matter! John Denisco and his Co. Are worthy of 10 STARS !!Service: Roof installation

Matt Hurley

2020-05

I called John and let him know I needed a roof replacement ASAP for insurance requirements. We had a consultation before the end of the week, found he was the best price out of the four organizations I received quotes from, I already saw good reviews on Google, and had the work scheduled for the next week. The roof look's fantastic, only took a couple days, and the crew cleaned everything up great on the way out. One thing I really appreciated is that John was a previous tech so I didn't get a terrible sales pushy experience, more of an explanation of what was going to happen and why. I couldn't be happier and will be reaching out if I ever need a roof completed again.

Jennifer Barewicz

2022-05

John and his team were great! John was responsive via email and text during the planning process and was very patient while we figured out a plan. His team was in and out in one day and cleaned up like they were never even there! Definitely recommend to anyone looking for an affordable and quick roof installation!Service: Roof installation

Renzo F.

2021-05

John was amazing from start to finish. He came out on a Sunday morning to take a look as I was having issues with water coming in through my walls. We had just bought our house a couple weeks prior to this issue arising and we're told the roof was new. John recognized that the roof was new but took the time to show me all the mistakes the company made during the installation. He spent the entire afternoon by himself fixing the area were water was coming in so at least no further damage would occur until the real issue could be solved. After working all day I asked him the total and he told me not to worry about it. Within a couple days he had a proposal sent over to me that was extremely reasonable and once I gave him a verbal agreement him and his crew were here 2 days later. He took the time to show me the damage that was underneath the roof (all rotted wood) and replaced it all efficiently. They finished the whole job in one day. His crew was also very professional and friendly. We had spoken to a few other company's prior to John's and honestly couldn't be happier we chose his. Highly recommend!Services: Skylight installation, Roof installation

Debra Barnes

2021-05

I never really appreciated a roof until John Denisco and his team replaced ours. Now, I find myself frequently admiring the beauty and quality of my new roof. From the very beginning of the bid process, John excelled at communication and demonstrated a superior level of professionalism. Once selected, John delivered on his promises and made the entire process enjoyable. He and his team are real craftsman in the art of roofing. The quality of the materials, protection of our shrubbery, to the expertise and attention to detail on installation all exceeded our expectations. John also provides an unparalleled warranty on his work that gives additional piece of mind. I heartily recommend John Denisco to friends and neighbors and to you as well.Randall & Debra BService: Roof installation

TREjr

2021-05

I would highly recommend John Denisco Construction. John provided a great quote and provided a step-by-step description of what I would be receiving. His crew was amazing. They were able to strip and lay down a pain in the butt roof in one day. John came to the house a week after the job was completed to inspect one area that he had questioned his foreman about. He had a couple of his guys make an adjustment so there would not be any issues later on with the lead flashing and how the seams and shingles layed. He did not have to follow up in that way, especially since he was not local to the area, but it was his name on the job. That is the type of service you can expect from John Denisco Construction. Thanks John.Services: Roof repair, Roof installation

Chris Fazio

2021-05

I had a new roof installed by John Denisco Construction Company I could not be happier with the finished results and warranty on the roof. The day of installation was great John and his crew came at 7:30 done by 4:30 . They where very professional and fast and efficient clean up was great. I would highly recommend John Denisco Construction Company could not ask for better service. Great JobService: Roof installation

Beth Farrington-Purpura

2022-05

If you are looking to have a roof replacement, Denisco Construction is the company to choose. John and his crew did a beautiful job installing my roof. They arrived in the morning, tarped and moved everything to ensure no damage to bushes, patio furniture, etc. The job was completed the same day which was pretty amazing. The team cleaned up and put everything back to where it belonged. Such a wonderful experience! A big thank you to Denisco Construction!Service: Roof installation

Jeffrey Lennon

2021-05

Wonderful job at a fair price. John was great to work with and communicated well and often through email and text. His crew worked hard did great work and did an excellent job at cleanup after. He came up with solutions to problems encountered that got the job done, looked great and didn’t break the bank. Highly recommend. I’ll certainly use him again if I need any painting or siding work.Services: Skylight installation, Roof installation

Liz Hackert

2020-05

Johnny was there with us from before we even closed on our home that DESPERATELY needed a new roof. He went to the property, gave us estimates and did a great job for a great price within 6 days after signing the papers for our new home and did it all in ONE DAY while we were away on vacation (and sent us pictures/video on the progress!) He also made a great suggestion for the color, it looks stunning! I would highly recommend his team, his eye for detail, and quality of workmanship. THANKS JOHNNY!!!

Vicki Therrien

2021-05

I can’t say enough about the magnificent work that John Denisco Construction Company did when they rebuilt the deteriorated rakes, fascia, and soffits on my 1830 barn. John’s crew also did an impeccable job roofing the huge barn and my home. I was amazed that this project along with the meticulous cleanup Was completed in only 3.5 days .After consulting with 6 contractors, I went with John because he not only had the best price but also because of his professionalism, excellent and timely communication skills, passion, and especially his patience. Being a single 69 year old woman having to make such a big decision was daunting. However, John answered my many , many questions and clearly explained the process with clarity, photos, and videos that helped me gain trust in my ultimate decision.I am extremely satisfied with the workmanship ,integrity, courtesy , and respect that the team gave while at my home . I wholeheartedly would recommend him to anyone interested in roofing and construction work .Vicki Therrien,Bow, NHService: Roof installation

Kathy Weidner

2021-05

This Company was amazing! I cant say enough wonderful things about them.For 1) when I needed a quote I spoke to the owner, not some sales rep that just wanted to sell me the biggest most expensive package so that he'd get a fat check.2) John was honest and understanding. We had leaks and rotted skylights. He was able work with is and get us a new roof within a week of the quote.3) He was in constant communication and was here when he said he would be and did the job quickly and professionally.I HIGHLY recommend them!Services: Skylight installation, Roof installation

Michael Trilling

2021-05

John and his crew did a great job from start to finish. John did a thorough and comprehensive estimate and provided a timely and competitive quote. He fit us into his schedule this season. The workers arrived early in the day and stripped the roof in no time. All obstructions and furniture were moved by the team and later replaced back where they belonged. The construction debris was removed and raked for nails. The team was easy to work with for my special case of moving the vent pipe to accommodate a new solar project coming soon. The entire project was done in one day. The written guarantee will be provided soon. I will feel confident recommending them to friends and neighbors.Service: Roof installation

Anne Biron

2022-05

Outstanding workmanship, professionalism and reliability. We had several companies interested in replacing our roof and siding. After meeting with John, I was confident that he was the company to do business with. Without a doubt, the best around. Thank you John and Team DeNisco. Simply the best!Services: Gutter installation, Roof installation

Ian Dalton

2019-05

I had John and his crew do a roof on a new house I just purchased and I couldn't be happier. He hit a couple delays with weather, but we werent in a rush. He was great communicating the delays and once he got a stretch of good weather he got our project done in only a couple days. He was great to work with I'd highly recommend him for any of that, he's a family guy!

Albert Stenta

2021-05

John is very knowledgeable and explained the details of the roof installation as well as the update of the ventilation. We not only had our house roofed, but also our large porch. He and his crew were very professional and cleaned up the yard once they were done. John uses quality materials and is responsive to his clients.Services: Attic venting, Roof installation

Matthew St Germaine

2020-05

Johns crew came in and did my good sized house and garage in short order.The workers showed attention to the lead and chimney work as well.Thankful for his communication and work ethic. I would highly recommend John Denisco Roofing and Siding for all your roofing needs!

Dana Way Condo Owners Communications

2020-05

We had hired John DeNisco for what I deemed as a large project; three structures part of a 7 unit condo association. Prior to hiring DeNisco, I did my research and reviewed multiple proposals. Upon meeting John, I knew he was an honest & upfront contractor (which is hard to come by in my opinion). The job was quoted and slated to be completed in 3 days. John stuck to his word and his crew worked hard day and well into the night to stay on track with meeting the timeline as outlined. I would highly recommend DeNisco Construction. Quality work/materials, great price, tremendous communication skills and a phenomenal crew along with a very detailed clean up. Extremely pleased with our decision and outcome of the project.

Opening Hours

Monday 7 AM-7 PM
Tuesday 7 AM-7 PM
Wednesday 7 AM-7 PM
Thursday 7 AM-7 PM
Friday 7 AM-7 PM
Saturday 7 AM-7 PM
Sunday 7 AM-7 PM

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