Slate roof in Baltimore after we replaced slates and added copper work
A slate repair from above: replaced slates and new copper work.

Slate roof repair in Baltimore

Keep the slate.
Fix what leaks.

Most slate roofs don't need replacing. We swap broken slates and fix the flashing so the good slate stays. Text me a photo and I'll tell you what I see.

  • 24+ years
  • Licensed and insured, MHIC #154344
  • BBB accredited, A+

I'm James. I've worked on roofs here for 24+ years, and we've done thousands of jobs across Baltimore City and Baltimore County.

Not sure if your roof should be repaired or replaced? Read Should a slate roof be repaired or replaced?

What we repair on slate roofs

  • Broken, cracked, or slipped slates, replaced with matching slate
  • Rusted or leaking valleys
  • Flashing at chimneys, walls, and dormers
  • Vent pipe collars, including new copper collars
  • Bad patches, tar, and wrong replacement slates from earlier work

We take out the broken slates, slide in matching ones, and fasten them properly. Then we put a metal bib over each nail so it stays sealed.

When a roof can't be climbed safely, I check it with a drone. I'm an FAA-licensed drone pilot. See drone roof inspections.

Recent slate work

New slates with copper transition flashing on a slate roof we repaired
New slates and copper transition flashing on a slate job.
New copper vent pipe collar on a slate roof
A new copper vent pipe collar we put in on a slate roof.

Questions homeowners ask

Can a few broken slates be replaced without redoing the roof?

Yes. We take out each broken slate and slide in a matching one. The rest of the roof stays as it is.

Why is my slate roof leaking if the slates look fine?

Most slate leaks come from the flashing, the valleys, or rusted nails, not the slate. Those parts wear out first and can be repaired.

Can you match my old slate?

We can sometimes find an exact match, and we always get as close as we can in size, color, and thickness. We use real slate, and only use synthetic slate if a homeowner asks for it.

Should I repair or replace my slate roof?

Most slate roofs should be repaired. Replacement makes sense only when most of the slates are soft or flaking. My repair or replace guide explains how to tell.

Where do you work?

Baltimore City and Baltimore County. See my service area and roof repair pages.