M.J. Ambrose Enterprises

35 Years of Craft. Zero Compromises.

An independent, owner-operated commercial roofing contractor serving Greater Boston since 1989.

Our Story

M.J. Ambrose Enterprises was founded on a simple premise: do the work right, stand behind it, and build relationships that last. That philosophy has guided every project we've taken on — from a single-building repair to multi-year campus programs.

We're an independent, owner-operated small business enterprise — not a private equity roll-up. Our principals are involved in every significant project. Our crews are experienced, trained, and take pride in their work. And when something needs attention after the job is done, we're there.

Over the decades, we've built a reputation as the contractor institutions trust for their most demanding roofing projects. Universities, religious organizations, and private owners come to us because they know the work will be done correctly, on schedule, and without surprises.

35+

Years in Business

1989

Founded

Owner-Led

Every Project

What Sets Us Apart

Owner-Led on Every Project

Our principals are hands-on. The people you talk to are the people running the job.

Independent, Not Private Equity

We're a local small business, not a roll-up. That means our incentives are aligned with yours: do the work right, build the relationship, earn the next call.

Certified on All Major Systems

Approved applicators for Carlisle SynTec, Sika Sarnafil, Elevate, GAF, and Johns Manville — ensuring that all service and repairs are completed and aligned with manufacturers standards and provide you the best warranties available for re-roofs.

Greater Boston, Inside and Out

We know the buildings, the climate, and the institutions of Greater Boston. That local knowledge shows up in every specification and every installation.

Approved Applicators

Certified by the Industry's Top Manufacturers

Being an approved applicator isn't just a credential — it means we've met the rigorous installation standards set by the manufacturers who make the best roofing products in the world. It means your roof qualifies for the strongest warranties available, and that the work is backed by both us and the manufacturer.