ESP Sales - San Jose, California

Miguel Espinosa

We recently had stone/tile work done in four bathrooms in our home. We asked Dave to take a look and discuss sealing as well as ongoing care and maintenance. He was highly knowledgeable, frank and to the point. We were very impressed with his professionalism and knowledge base. All in all, a great experience and we are looking forward to continuing to work with Dave and his team.

larry lowry

Our exterior stonework (patios, bannisters, wall, walkways and balconies) had not been sealed properly when it was installed and we had not known how to maintain it adequately. And with last year’s extra heavy rain our stonework had gotten so bad that it was covered with green and even black blotches and some chips and cracks were beginning to appear. To top it off, our pool person had put chemicals in our fountain to dampen the algae growth there. Unfortunately, whatever chemicals they used had the result of eating away at the stone, leaving a real mess. We thought that our stonework might be beyond repair and that we might have to just live with very unattractive stonework.

But then we were referred to David Bonasera at Dave The Marble Guy / Environmentally Safe Products and Procedures (ESP) by the people at Millbrook Stone, a very top quality stone company. We read reviews on Dave's/ESP's work and met with him and a couple of other possible providers. David was head and shoulders better than the others in both knowledge and his apparent commitment to quality. So we selected ESP for our stone work and are very, very happy that we did.

Dave and his whole team did an outstanding job. They are very knowledgeable and knew exactly how best to clean, densify and seal our stone so that it looks like new. They also were a delight to work with. And, most impressive, they were able to actually bring our fountain back to its original look and condition. We have been both very pleasantly surprised and delighted by the results that David and his team have delivered. Our stonework was cleaned back to its original appearance and densified and sealed to protect it going forward. Our fountain presented a particular set of challenges and we were especially doubtful that it could be restored. And, it did prove to be a challenge and required multiple efforts. But David and his team were absolutely tenacious about making sure that the end result met not just our expectations but also his very high standards. And, after considerable effort, it too was restored to its former glory with a result even better than we had hoped for.

David and his team are extremely knowledgeable and clearly totally committed to delivering top-quality results. He and all of his people are a delight to work with, and he stays with it and does whatever it takes to deliver on his commitment to quality work. I highly recommend them for even the most challenging job.

Nora Maarshal

They are perfectly expert at what they do. I was guided best about which all ways I could get my flooring done in. and then I was served in speediest way. two thumbs up Dave.

Sunny Hendry

Great help and service