"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."

"Miguel is responsive and professional. He has a confident grasp of excavation project options."

"I am incredibly pleased with this company. The entire crew were 100% professional. The owner of the company took time to answer my homeowner questions as they came up. He was very patient and thorough. All the men on the job worked incredibly hard and stayed on task throughout the project. They installed the French drain, installed a washout and removed an old deck all in a weekend. I would most certainly recommend them."

"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."

"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!

Here at Raya Engineering, we sustain our company on the principal that our customers come first. We offer services that are tailored to your needs and we're ready to show you what our experience can bring to your project! Call us today!

"answered my request for hauling away farm equipment promptly,arrived on time, friendly, professional, offered an estimate for drainage work."

"The job went great I highly recommend them All of their Employees Are very nice and hard workers no slackers Kept our property clean when they left every day They even laid big tarps underneath their trucks to keep the streets clean Marco would come by every day to check on things Louis the man that laid the pavers He did a great job He didn’t just throw down any paver he made sure the shapes and colors were just right like an artist he takes pride in his work We are very happy with our new backyard would highly recommend them."