The Delta Slate Company

Tim Underhill came highly recommended by, truly, every friend and neighbor I asked when inquiring about roofing companies. Everyone pointed me in his direction! He responded quickly to my message, assessed the roof within hours, and was back the next day to make the repair quickly and efficiently. Honest about what was and wasn't needed. Definitely recommend!

I got 3 estimates to repair my roof. Two tried to up sell me to replace the roof but Tim was honest and told me what repairs that I did need. I had 15 slates replaced and two vent piles flashed in copper

Tim and his crew were great to work with! They were able to replace our roof, despite many rain delays, very quickly and the crew worked very hard to get this done timely. The roof looks great and the workers were very professional- they were friendly, knowledgeable and made sure to clean up when the job was complete. We are so happy with our new roof!! And, the job was right in line with the original quote we received from Tim. We would definitely recommend Tim/Delta Slate for any slate roof needs!

As a homeowner for nearly 40 years, I have had my share of bad roofer experiences, in terms of up-pricing, shoddy work, and unreliability. So my only regret in hiring Tim Underhill of Delta Slate Co. is that I didn't meet him sooner! The man is as good as his word, an experienced professional who inspires trust from the get-go. Once Tim and his crew take on a project, it will be completed perfectly, on time and to estimate (and at a very fair price, I might add!). What's more, Tim's deep understanding of roofing structures and materials, especially, slate, is remarkable. You should work with him--I intend to from now on.

Tim Underhill is a pleasure to work with, very knowledgable and comes up as a trusted name in every conversation I have with Baltimore slate roof owners. Highly recommend!