CA License #793014 | NV License #0080422 | DIR# 1000001107

About HPS Mechanical, Inc.

HPS Mechanical, Inc. is headquartered in Bakersfield, CA with offices in San Diego, CA serving the States of California and Nevada.


HPS Mechanical Inc. was founded as Harry's Plumbing Service in 1959 by Harry DenHerder. With one truck that he used for service calls he built up the business with a solid reputation for doing the best work in town work at a reasonable price. HPS continued to grow, focusing mainly on service and remodel plumbing until it was purchased in 1976 by Harry's son, Les DenHerder. Since then HPS has expanded into new construction, pipeline, engineering and plumbing design services in Southern California and Nevada. We're still known for our technical expertise and quality work, just on a larger scale. HPS is a progressive company dedicated not only to meeting your needs today, but to anticipating how we can continue to serve you tomorrow.


HPS excels at both small and large scale plumbing projects. In Bakersfield, HPS offers a full range of residential plumbing and repair services. HPS is well known for our commercial, municipal, industrial piping and military projects and carries out most of our work as a mechanical contractor specializing in plumbing and piping as well as performing site utilities in support of mechanical systems. HPS is licensed in California for general engineering and general building and holds specialty licenses for plumbing, HVAC, pipeline, fire protection, septic and boiler systems.

With the exception of insulation services, HPS employees perform all work on our projects. We have a core crew of 225 permanent field employees that can expand to meet any required schedule. Although 60 percent of our work is performed as a subcontractor, HPS does bid specialty projects as a prime contractor with a full time Engineering and CAD team capable of design/build projects for both private and public owners.


HPS has an excellent in-house safety program. Over the last two decades losses in the areas of general liability and workers' compensation have accounted for less than fifteen percent of our premiums. Because of our impressive safety record, we can provide higher coverage limits thereby providing additional benefits to owners and general contractors.


At HPS we believe every client, employee and vendor brings something special to the team. That's why you'll find very little turnover on our crews. And you'll find that most of our vendors, like our employees, have worked with us for years! The strong, positive relationships we've developed with our vendors are crucial to us for competitive pricing and timely delivery of materials – both of which are essential to keeping your projects under budget and ahead of schedule. Using this interwoven team of experts enables us to provide the talent and knowledge we need for the success of your project.

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HPS About Page Image.

HPS About Page Image.