Our work speaks
for itself!

Serving Northwest Connecticut for Over 35 Years

Mario Lallier, LLC

The Most Trusted Name in Standing Seam Metal Roofing!
Our Professional Custom Made Standing Seam Metal Roofing / Sheet Metal Fabrication and gutters is an owned and operated family business of 35 years. We have a long standing history of integrity, that performs high quality professional workmanship. We take great pride in listening to our customers, and provide professional feedback in order for them to make informed decisions about their home projects.
Our Employees are professional, courteous and take every measure possible to secure the work site area by covering any landscape, such as, shrubs,bushes and plants to protect them from any potential damage. Our cleanup is thorough, and complete with only the beauty of your newly installed Standing Seam Metal Roof left behind.


  • Lifetime Sustainable Roof
  • 35 Years experience of high quality installation of custom made on site standing seam metal roof roofing.
  • Custom made fabrication of all accessories in a fully equipped owned and operated CNC facility.
  • A variety of colors available
  • Fully Insured

Metal Roof



  • On site quality custom made 5” and 6” seamless K- gutters available in aluminum or copper and a variety of colors.
  • On site high quality custom made 6” seamless half round gutters. Available in aluminum, copper and galvanized and a variety of colors.


Family owned and operated, we manufacture and install high quality metal roofs. We offer start-to-finish solutions for every project. We can custom cut your roof on the premises.


Office: 8am – 6pm M-F
Meetings by Appointment Only

Historic Home Gets a Refresh
with a Striking New Copper Roof

Anyone who spends time in Connecticut finds themselves in a place with deep historical roots that stretch back to colonial times. It is an inherent part of the charm of the state and something in which residents take great pride.