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CALL NOW! 914-698-2086

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Residential and Commercial Roofing and Home Improvement Services in Westchester County and Surrounding Areas for Over 80 Years.

Specialists in Custom Slate and Copper Fabrication

• New Roofs

• Re-Roofing

• Flat Roofs

• Shingles

• Gutters

• Chimney Flashing

• Roof Vents

• Repairs

• Snow Guards

• Sheet Metal

• Slate

• Leaders

• Gutter Cleaning

• Waterproofing

• Custom Copper

• Doors

• Replacement Windows


We look forward to making your new roof purchase and installation a positive experience.

  • We give you a 10 year
    "no-worries" guarantee on workmanship on new roof projects

  • Our employees have over 95 years combined experience with Angus Theriault & Sons alone!

  • As members of the NRCA, Chamber of Commerce,


GRHC (Green Roofs for Healthy Cities) and as a certified "Quality Master" company, we are well established and represented.


A Short History of Angus Theriault & Sons, Inc.

Roofing Contractors.


On May 7, 1934, upon the birth of his first child, Angus Theriault drew his first roofing contract, thus starting Angus Theriault & Sons, Inc.  Since that day Angus Theriault & Sons has provided Westchester County property owners with prompt, efficient and professional roofing related services.


Angus was joined in his business by his two sons, Joseph and Arthur, who carried on the quality roofing tradition Angus had created for more than three decades. Angus Theriault passed away in 1969. His grandson, Steven Theriault is now the third generation to be a part of the family business.


Angus Theriault & Sons is looking forward to continuing to provide exemplary service in the Westchester area for many years to come.

Call Angus Theriault & Sons today –


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Mamaroneck Chamber of Commerce


Westchester License #647-H87

Major Credit Cards Accepted

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Angus Theriault & Sons
323 Ward Ave. Mamaroneck, NY 10543


Our Work

What our customers say...

We wanted to thank you for the beautiful job on our roof. For the first time in 23 years we have been in the house, there was no water in the basement (except for the last day, and that was due to the ground water level) and last week was surely the definitive test. Dining room also - dry as a bone - and of course it looks georgeous. Thank you. –S.I


As always, good fast service from you and your men. –L.K.


Thanks for you prompt response and integrity, I appreciate all. –A.M.

Dear Mr Theriault 
Many thanks for a good job well done.  Sincerely, S.V.


As usual– A fine job and a very energetic and efficient crew. Well done and thanks. –J.W.

Thanks for sending the guys, both gentlemen were a pleasure. –J.D.


Many thanks for your wonderful expertise and workmanship. –S.B.


Thanks for doing such a fine job. –Don

Our thanks to Mario for a job well-done!.

Steven- Thanks for your quick and efficient service on my roof! –A.S.


Steven – Your men did a great job and finished in very good time. We had no water at all in last night’s heavy rain storm. Best wishes. –S.T.E


I'd like to thank Steve and the crew for their speed, courtesy and professionalism. As a new homeowner and neighbor, it’s important to feel confident in knowing one could refer a company to others. Thank you again. –S.B

Gentlemen, We have had several torrential rains since you repaired the leak around my skylight at the end of May and I am pleased to report that there have been no further leaks, Thanks for a professional job.

Very truly yours,


Good news! the dining room is dry! Many thanks for getting here promptly. – A.N.

Your people did a wonderful job! I will recommend you and surely use you again. Thanks. –S.F.

Congratulations on your 65th Anniversary!! As clients for the past 35 years, we have always felt confident when recommending you because your work is of the highest caliber. –M.H.


Dear Theriaults, Thanks for a clean, efficient job. Also, for coming back for the finishing touches. Cordially, T.K.


Thank you for a job well done. Your workers were very courteous and did a good job cleaning after they were donw. –Mrs. L.L.


The work looks good. Your workmen were excellent. My compliments to your organization. Thank you.

Thanks so much! All those involved did a spectacular job. The roof looks terrific! –B. C.


Thanks for the excellent service. –A.R.

I appreciate all the good work you did at my house. –N.I.


You inspired confidence....will give your name to anyone. –L.D.

Contact Angus Theriault & Sons Today.

We'll get back to you promptly.

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© 2021 by Dot Payne

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