Restoring the landmarks that define Connecticut.
Family-owned and operated since 1883, delivering commercial roofing, masonry restoration, and historic preservation throughout Connecticut
Built for Connecticut's most demanding buildings.
Commercial
Commercial, manufacturing, and retail properties can’t shut down for a roof project. We’ll be there to help when you need it.
Universities
From Yale’s iconic Ingalls Rink to UConn’s campus envelope work. Higher education trusts F.J. Dahill.
Hospitals
Healthcare facility roofing, masonry, and envelope work — completed without disruption to operations.
Houses of Worship
Historic church restoration, steeplejack work, slate roofing, and stained glass support across Connecticut.
Historic Properties
PDCA First Place Commercial Exterior winner. Faithful restoration of Connecticut landmarks.
A proven 5-step process for every project.
Site Visit
On-site inspection by a project lead. We meet your team, see the building, and ask the right questions.
Scope & Plan
A detailed scope of work, photo documentation, and timeline tailored to your operations and budget.
Execution
Skilled crews, full safety compliance, daily updates, and respect for your tenants and operations.
Quality Check
Final walk-through, infrared scanning where applicable, and a punch list closeout with your team.
Warranty
Full documentation, warranty paperwork, and a long-term maintenance plan to protect your investment.
Full-envelope craftsmanship.
Connecticut's most distinguished buildings.
Ingalls Rink — "The Yale Whale"
Saint Francis of Assisi
John M. Davies House
Connecticut's leading institutions.
What our clients
say about us.
"F.J. Dahill brought a level of craft and care to our restoration project that we genuinely didn't think still existed in commercial contracting. Their crew was on time, on budget, and treated our historic building with the respect it deserves."
"We've worked with many restoration contractors over the years. F.J. Dahill is different. They show up when they say, do what they promised, and stand behind their work. That sounds simple, but it's rare."
"The steeplejack work on our church was extraordinary. F.J. Dahill is one of the few contractors in Connecticut who can still do that level of historic preservation craft."
Have a building that deserves
generational craft?
Tell us about your project. We work on Connecticut’s most demanding buildings, and we’d be glad to discuss yours.