"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."

"Demolition, of our shed was completed without wrecking our landscaping or fence to gain access.  Campbell Services is extremely careful and has the perfect science and engineering when it comes to safety and efficiently tearing down buildings and other artificial structures. Because of the way the Demolition was performed the deconstruction of the shed/building carefully preserved valuable elements surrounding our house made it easy for us to repurpose the area and upgrade our backyard. We now are enjoying and indoor/outdoor living space."

"David did a great job installing artificial turf for us. He is extremely knowledgeable and the job turned out perfectly. He was prompt, on time and on budget. He is excellent at communicating and always promptly returned my calls or texts. He and his crew cleaned up the entire area when the work was completed and I give him my highest recommedation."

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!

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade, combined with ability, is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business

"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."

"We bought a 'fixer-upper' and of all the contractors (and we have worked with A LOT on this house) he is the top. He is prompt, he always follows through, his team works hard and gets the job done fast and well. If there are any concerns he comes out personally and takes care of them immediately. He is flexible and thinks on his feet. His pricing is very reasonable. There wasn't a thing that we didn't like about working with Nato and team. He is our official go to guy for landscaping and other projects. We trust Nato, his work and recommendations to us We would definitely recommend him to our friends. My husband found him on Angie's list and it was one of the best finds we have had in the 3 years we owned the house."

"I had a trenchless sewer line replacement done on my property. I got a great price for all of the work they did and incredible customer support. They repaired everything as though they were never there. I had a great experience working with Platinum General Engineering & Construction. They handled everything from start to finish without me having to deal with the city or other headaches. I highly recommend them!"

"They did a good job, and we were pleased."

"Great - on time, friendly, good work."