Approved Pro
Approved Pro

Shamrock Contracting

Flat, Foam or Single Ply Roofing - Repair- For Business, Asphalt Shingle Roofing Repair, Flat, Foam or Single Ply Roofing Repair,

About us

Shamrock Contracting is your best choice in Nassau County for all your roofing needs! Thomas Gilligan, originally from Ireland, takes great pride in every project that they do and is onsite on all jobs to ensure customer's complete satisfaction and backs it up with a hand written warranty!

Business highlights

35 years of experience

Services we offer

Natural Slate Roofing - Repair

Amenities

Free Estimates

Yes

Accepted Payment Methods

  • CreditCard
Reviews
4.937 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
78%
4
5%
3
0%
2
0%
1
0%

Filter reviews by service

Showing 1-25 of 37 reviews
Henry C.
May 2025
5.0
Asphalt Shingle Roofing Repair
$3,000
I had a pretty bad leak from my roof and upstairs gutter at my house every time it rained. tom from Shamrock contracting came over and took the time to explain everything to me. His price came in lower than the other quotes I got, he finished the work ahead of schedule, cleaned up immaculately and was on the job himself every day with his crew. I highly recommend Tom and shamrock contracting

Frank E.
Jun 2023
5.0
Yes, I recommend this pro
Tommy replaced our roof and did a great job. Did exactly as he said price and schedule no add ons. Attentive to all details even straightened out a couple of gutter downspouts. Roof looks great and he and his workers were attentive and left property as they found it clean and neat. Would 100 percent reccomend.

Angela B.
Apr 2023
5.0
Yes, I recommend this pro
Tommy did a GREAT JOB! Iâ ve never had a better experience with a roofing or siding job and I have exclusively ended up using him for any home repairs or additions we will need. Tom is attentive and puts all his effort into the project quickly and efficiently. He reassures and answered questions as needed and gives great accommodations. I will never use anyone else for any projects we may need on any of our properties! He is one of a kind!!!!

SUSAN P.
Apr 2021
5.0
Yes, I recommend this pro
Excellent Work, very trustworthy, reasonably priced. Prompt service. Thank you Tom

Mark W.
Aug 2020
5.0
Asphalt Shingle Roofing Repair
Yes, I recommend this pro
Professional very accommodating, efficient, super high quality work! Would hire again in a flash!

Yvonne W.
Jul 2020
5.0
Yes, I recommend this pro
Tom and his crew were puntual every day till the roof overhaul and gutters were completed. His crew were very courteous and very hard working, even with the sweltering July 2020 temperatures. Tom always explained and showed photos of my homes roofing problems that previous roofing contractors ignored. Going to feel secure the next time it rains, instead of catching the drips in the up stairs bedroom....Thanks Tom way to go:>)

Mark M.
Jul 2019
5.0
Asphalt Shingle Roofing Repair
Yes, I recommend this pro
Tom was very prompt, friendly and professional. I will use him again.

Richard B.
Jun 2018
5.0
Asphalt Shingle Roofing Repair
Yes, I recommend this pro
Good listener & problem solver

Mohammad A.
May 2018
5.0
Asphalt Shingle Roofing Repair
Yes, I recommend this pro
$425
he is very professional about his work and honest.

Orly L.
May 2018
5.0
Asphalt Shingle Roofing Repair
Yes, I recommend this pro
Tommy was very professional. He explained and showed us exactly what needs to be replaced and how he will do it. He did a very thorough job, took his time to make sure the job is being done to his high standards. Before hiring Tommy we spoke to number of his costumers and they were all raving about him. Now that he finished the job and we had a few big storms with a nice dry roof, I’m the one raving about him. Will definitely recommend him.

Alex G.
Mar 2018
5.0
Asphalt Shingle Roofing Repair
Yes, I recommend this pro
$1,150
Very understanding and helpful company and people

Joel S.
Feb 2018
5.0
Asphalt Shingle Roofing Repair
Yes, I recommend this pro
$1,150
Highly professional, knowledgeable, responsive & reasonably priced - offered to guarantee the work!.

Steven F.
Feb 2018
5.0
Asphalt Shingle Roofing Repair
Yes, I recommend this pro
A pleasure to work with and very reliable. I will use them again if needed.

Lenny B.
Nov 2017
5.0
Asphalt Shingle Roofing Repair
Yes, I recommend this pro
Trustworthy efficient & great response time. I highly recommend Tom & Shamrock

Richard H.
Nov 2017
5.0
Flat, Foam or Single Ply Roofing Repair
Yes, I recommend this pro
Tom & his crew are real professionals. After explaining my situation to Tom over the phone,he came right over to my house to evaluate the job. He explained to me what the job would entail & offerred a fair price. The work performed was exemplory. Toms crew (Carlos & Manuel) reallyknew what they were doing. i would highly recmommend Shamrock Contracting,

Alan O.
Oct 2017
5.0
Flat, Foam or Single Ply Roofing Repair
Yes, I recommend this pro
$1,500
Tom explained the process every step of the way. He was very courteous. He showed me photos on his phone of the completed project.

Ken W.
Oct 2017
5.0
Asphalt Shingle Roofing Repair
Yes, I recommend this pro
$780
Tom came in with fair price, did great work, was fast, and took care of a few extras that he found without charging more. He knew rain was coming in on Tuesday so he rushed to do part of the job Monday which was the day after I hired him. And the leaks were gone. I would highly recommend.

Steve B.
Jul 2017
5.0
Asphalt Shingle Roofing Repair
Yes, I recommend this pro
He came on time delivered what he promised and was very professional . I have recommended them already

Sri G.
May 2017
5.0
Asphalt Shingle Roofing Repair
Yes, I recommend this pro
$2,000
very honest ,reliable and confident. Fixed the problem in time and within the budget . my reference for tom would be "the best "

Naomi J.
May 2017
4.7
Asphalt Shingle Roofing Repair
Yes, I recommend this pro
Personal, professional. Completed job in a timely manner.

Jeff J.
May 2017
4.5
Asphalt Shingle Roofing Repair
Yes, I recommend this pro
$1,800
I would recommend Tom to friends. He was responsive, professional and did excellent work. There was a heavy rain storm before he made the full repair and he made sure to put a temporary patch on the roof to make sure the leak did not get worse. He was the only roofer to be responsive and come to my home on the day I called. The work looks good from the outside. I am optimistic that with the multiple layers of copper, ice shield and cement, the leak will be fixed permanently. I have only 2 concerns. Others offered a 10 year warranty and he only provided 5. Also, the work on one side could have been done without an obvious gap that needs to be siliconed. Overall, I am very satisfied and would recommend him.

Tejal T.
May 2017
5.0
Flat, Foam or Single Ply Roofing Repair
Yes, I recommend this pro
I initially hired Tom Patrick to repair a roof leak on one side of my house back in December 2016. He was professional, prompt, and did the work himself. I had no roof leaks all winter long so I was very pleased with the job he had done. We have a flat rubber roof on the OTHER side of our house, which started leaking in the spring due to heavy rain. I called Mr. Patrick again and he came the same day to identify the problem and gave me a reasonable estimate. I appreciated that he completed the work promptly since we were expecting more rain later in the week. It has rained a few times within the past week and we have had no leaks!! I highly recommend Shamrock Contracting for all your roofing needs.

VIJAY D.
Apr 2017
5.0
Asphalt Shingle Roofing Repair
Yes, I recommend this pro
We are extremely happy with the service that we received from shamrock We would recommend them to anyone who is looking for a great experience They are cordial,prompt,pleasant and honest

Dan C.
Feb 2017
4.0
Flat, Foam or Single Ply Roofing Repair
Yes, I recommend this pro
good work

Barbara P.
Apr 2015
5.0
Asphalt Shingle Roofing Repair
Yes, I recommend this pro
Neat , great job and very professional!
Showing 1-25 of 37

Licensing

State Contractor License Requirements

All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our Find Licensing Requirements page.

*Contact business to see additional licenses.

FAQ

Shamrock Contracting is currently rated 4.9 overall out of 5.
Shamrock Contracting accepts the following forms of payment: CreditCard
Yes, Shamrock Contracting offers free project estimates.
No, Shamrock Contracting does not offer eco-friendly accreditations.
No, Shamrock Contracting does not offer a senior discount.
No, Shamrock Contracting does not offer emergency services.
No, Shamrock Contracting does not offer warranties.

Contact Information

62 Grove Street, Glenwood Landing, NY 11547

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