Have faith and trust in data provided by the “Contractors State License Board”, and also in the many testimonials written by our satisfied customers below.

Ray Petrin

Flora and Geoff

Engineered Steel Reinforced Concrete Walls and Deck

We feel privileged to have worked over the last 1.5 years with Ray and his friendly crew at Hy-Tech Construction and recommend them with confidence.  They took on our very large, complex project and completed the job, maintaining high-quality work and detailed communication with us throughout the entire project.   

Varina and Ed C.

Engineered Steel I-Beam Walls and Deck

We were fortunate to be referred to Ray and HY-Tech to help us in the rebuilding of our retaining walls and a deck on a slope and challenging access.

Hanna J.

Engineered Keystone Block Walls

Sorry so late in getting this testimonial to you!!  Thank you again for everything!

Due to a terrible rainy season, I found myself in a “nightmare” situation, with a mudslide on our rental property threatening a home down the hillside. 

Evelyn s.

– President, Sequoia Investments

Engineered Steel I-Beam Walls

I am enthusiastic about recommending you and your company, Hy-Tech Construction, for engineered and other challenging construction projects. Over the last fifteen years your company has completed several projects for me involving the replacement of retaining walls and all of them continue to be functional and in good repair.

Dave and Jeff C.

Engineered Keystone Block Walls

Based on our experience, very few contractors earn and keep our trust over multiple projects spanning several years.  We have used Hy-Tech Construction for multiple projects for several years now and we’re pleased to convey that our trust and confidence in Hy-Tech Construction remains quite high. 

Ann and Michael H.

Engineered Steel I-Beam Walls and Deck

What impressed us most about Ray Petrin and his team was their responsiveness to our crisis, a collapsed retaining wall during the winter’s torrential rainfall. They provided safety measures, assembled a team of soils and structural engineers who performed the testing and plans for the construction requirements, and plodded through the bureaucracy at Millbrae City Hall.

Jeanne L.

Engineered Custom Fence Structures

I have had the invaluable assistance from Hy-Tech Construction for almost 20 years.

I wanted a French Country Garden rustic fence that looked like it had been there a long weathered time. They were gracious enough to step away from the exquisite fencing that they are notable for and accommodate my wishes.

Jim and Kathy F.

– San Carlos, CA

Engineered Steel I-Beam Walls in Creek

Hy-Tech Construction is one of the best and most trustworthy construction firms we’ve ever dealt with. We had to rebuild a retaining wall along a creek behind our house.

Sharon K.

Engineered Steel I-Beam Walls and Deck

After months of meeting with different contractors for a retaining wall project shared with my neighbor, we met Ray Petrin & everybody agreed on him.

DW–San Carlos

Engineered Steel Reinforced Concrete Walls and Deck

I needed some work done on a retaining wall. One company’s overblown approach would have cost tens of thousands of dollars. Then I contacted Hy-Tech. Their down-to-earth proposal made sense. They did the job they promised, with outstanding quality and in a matter of days. I was very pleased with the result.

Jamie H.

Director, Trinity Presbyterian Nursery School

Engineered Custom Designed Arbor and Deck at School

When choosing a construction company to reconstruct outdoor play areas for a preschool, it is of the upmost importance that that company make safety the number one priority. Hy-tech Construction not only put safety first when reconstructing our outdoor play areas, they managed to improve and upgrade that space for our children. These improvements have taken our preschool to an even higher level of safety and fun. Thanks Hy-tech!

Marge H.

Engineered Second Story Deck

Hi Ray,

Our many thanks to you and your men for such a smooth process and wonderful outcome. I love the deck and will enjoy many sun-filled days out there. ❤️

John & Nancy P.

Engineered Steel I-Beam Wall


We want to thank you and your wonderful crew for a job well done. Our project had many difficult issues which you attacked with extreme diplomacy.  You always remained positive during the course of our project and we are extremely pleased with our new retaining wall and fence.

We would be honored to recommend you to any prospective client. We want to wish you and your crew the best for 2018.

Best regards,