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Terrafirma Excavation describes itself as an owner-operated excavation contractor based in Westfield, MA, serving builders, contractors and property owners throughout Western Massachusetts. Its Massachusetts home improvement contractor registration is active on the state registry. A 2025 customer said Nate demolished their above-ground pool, removed heavy retaining walls, leveled uneven ground and took out two small trees. A 2025 customer said Nate built a stone retaining wall and stone steps at their place, and that he showed up when he said he would. A 2025 reviewer wrote that Nate had installed underground gutter drainage at their home a few years earlier, and that their basement hasn't been this dry since they bought the house. A 2025 customer said Nathan prepped their site for a shed, then filled in a level pad with trap rock.
I had Terrafirma Excavation build a stone retaining wall at my place, and Nate did an awesome job. The wall looks great—solid, clean, and fits naturally with the yard and my small lakeside community. The stone steps came out perfect too. The wall has also become a gathering spot to watch bicycle shows and visit. I still am thrilled when I pull up to my house! Nate was super easy to work with, showed up when he said he would, and clearly knows what he’s doing. He took his time to look at my ideas and talk through the whole project. It turned out even better than I expected. If you need any stonework or excavation done, definitely recommend giving Terrafirma a call. I’d work with them again for sure.
We are extremely pleased with the transformation Nate brought to our yard. He handled the demolition of our above-ground pool, removed heavy retaining walls, leveled uneven ground, and even took out two small trees. The difference is remarkable! This was just phase one, and we’re excited to have Nate back for future work. I highly recommend him — he’s professional, affordable, and truly dedicated to delivering excellent results. Thank you Nate!!
The team at Terrafirm are the definition of professionals. I’ve had them out several times to handle projects that just go smoother with the bigger machines than the shovels at my disposal. They’re straight shooters and haven’t led me wrong yet, I look forward to working with them in the future.
It’s been a few years since Nate installed underground gutter drainage at my home, and I have to say… I’m kind of annoyed—THAT I DIDN’T DO IT SOONER! My basement hasn’t been this dry since I bought the house. The work was done professionally, and it has clearly stood the test of time. No issues, no water problems—just peace of mind every time it rains. If you’re on the fence about investing in proper drainage, don’t wait. I highly recommend this company. Nate knew exactly what he was doing and delivered long-lasting results.
Nathan did a great job to prep our site for a shed. Then he filled in a nice level pad with trap rock. He did it all in a timely manner, too!
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2 changes recorded — last scanned Sep 29, 2026.
Wood and block retaining walls4.9
Bulkhead replacement4.8
Asbestos shingle removal3.4