Get matched with top excavation pros in Sonoma, CA

"Humberto is a very creative problem solver! Personable and definitely interested in customer satisfaction, so spends time understanding the full scope of the problem. The problem was the subterranean north wall of the sanctuary of First Presbyterian Church in Vallejo that was far from being waterproof, especially with the rains last winter. Castaneda dug out the soil next to the wall, pressure washed it and applied two coats of DryLok and then a layer of Henryâ s waterproofing. Then Humberto installed a French drain and then a big pipe to route the water off of five downspouts. To get the correct drainage slope, more excavating needed to be done than anticipated. Removed five landscaped trees and lots of concrete that was in the way of the drains which were to be routed under city sidewalks."

"Ultimately happy with the end result and fair price for our 30ft sewer lateral replacement. Miguel was professional, friendly, and hardworking. However, communication was a bit spotty and we had follow up many times (I understand this is the busy season, though). Also, it was unclear if we were supposed to call 811; we assumed he would, but didn't, and this was an issue as the water line was hit during construction and the city had to come to shut it off on the whole street. It was handled quickly, but would have been avoidable. The project ended up taking much more time than expected, but it was completed in a day, as promised. I would recommend him, but you should be diligent and responsible yourself to make sure all the right steps are being taken."

"Called SH grading told him what I wanted done did exactly what I wanted done and how I pictured it. Jose did a great job."

"Advanced Earthworks was very professional & for the job done on time & under budget. I?ll use them again, for sure!"

"I cannot say enough about how good this experience with John Mountain/Mountain Engineering has been. They said it would be 3 weeks; anti was. The work was painstakingly done, including a French drain behind the wall. And they replaced the plants that were destroyed during the process, which was an unexpected bonus."

"I was very pleased with Ray's plumbing services. He made it hassel free, he was efficient, professional, finished the job promptly. He was not pushy, however he was very knowledgeable and answered all my questions without* making me feel like an annoyance, as others have made me feel in the past and wanted to rush through and collect money. I Highly recommend Ray's Rescue Plumbing to my loved ones and to anyone looking for a trustworthy company. -Services provided: front of hous, entire faucet valve & pipes equipped/replacement; had unresolvable water leakage. Simply from being an older home the pipes had visible begin showing corrosion from due time"

"They did an amazing job, and I would hire them again for sure."

"Edgar and his employees were amazing. Their bid was the best. Other guys said they would have to rip up pavement that this crew could do no problem minimally. The guys were so well groomed and polite. Not that that matters but it was an extra bonus. Lovely crew and incredible job in a few days. I will for sure use them again."

Demar Inc. proudly serves its customers with pride, integrity, and attention to the details that matter most to you. This is one of the many things, that set us apart from the rest. We are locally owned and operated. Give us a call today!

We are a general engineering contractor that offers high-quality craftsmanship in all site, work underground, utilities, paving, and concrete work.