Comply with

life and

Protecting the barriers that protect you.

Fire barriers impede the spread of fire and save lives, but can only achieve their full impact when every penetration and gap is properly sealed. Thru-Wall is a specialized contractor committed to delivering the maximum benefit of firestop technologies and fire barrier management across the Boston area.

Let our trained technicians help you stay safe and in compliance with all applicable codes.

What Our Clients Say

“I just wanted to let you know that I really appreciate how low-key the workers have been in the building. They are so calm, friendly and unobtrusive. It’s almost (ALMOST) like they're not here.”

– James G. Rollins, Director of Finance and Administration, The Fletcher School - Tufts University

“Thru-Wall’s customer service was impeccable and flexibility and willingness to meet BWH’s expectations was much appreciated. Construction is unsettling and your team made it an otherwise most pleasant one!”

– Trishia S. Lichauco, Brigham & Women's Hospital, Chief of Staff/Office of the President

Accreditations & Certifications