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Houston Service Industries

Houston Service Industries (HSi) started as a balancing and rotating equipment repair company serving municipal and industrial customers in the Texas Gulf Coast area. Over its 40 year tenure, HSI has evolved into a leading manufacturer of centrifugal blowers, exhausters and control systems, servicing customers worldwide. Atlas Copco acquired HSi in January 2012 to further support its expansion into low pressure markets and low pressure blower technologies.

HSI Building

Significant investments have been made to ensure that HSi has the best people, facilities and equipment in the industry, allowing us to work to continually develop and improve the performance, efficiency and reliability of our blowers.

Mission and Products

HSi is committed to being the market leading designer and provider of Low Pressure centrifugal solutions worldwide. Our product portfolio, which includes multistage centrifugal blowers, high speed turbo blowers, and process control systems, used in air and gas applications further complements Atlas Copco’s full range of ZS, ZB, and ZE/ZA blowers. Our product performance ranges up to 25 PSI (1.7 Bar) pressure or to 18 inHg (457 mmHg) vacuum and flows from 100 to 40,000 CFM (10 to 70,000 m3/hr) to meet a wide variety of applications. HSi also provides a complete array of aftermarket parts and services for centrifugal blowers, including in-factory blower overhauls, on-site blower troubleshooting and repair. Our state-of-the-art engineering, manufacturing, research and development, and testing capabilities all reside in-house allowing us to supply our customers with innovative, highly engineered products and develop new, cutting edge solutions.


HSi’s products will be fully incorporated and branded within the Atlas Copco portfolio with the multistage centrifugal blower already being successfully introduced into the market as the ZM blower. There are thousands of these blowers running successfully in a wide range of in industries such as wastewater treatment, mining, landfill gas recovery as well as general industry.

Moving Forward

We know that outstanding customer service is what has built us and will continue to propel us forward. When our customers bring us difficult applications, we respond with cutting edge solutions. Our Sales Representatives are a group of Low Pressure experts capable of supporting customers from the inquiry to order time with competition analysis, application knowledge, and the blower’s installation review and design. With a presence in over 150 countries, Atlas Copco Compressor Technique Service (CTS) supports our aftermarket with field service. The CTS Technicians are available for service calls 24 hours a day, every day of the year to assist with urgent situations.

Blowers & Exhausters

Multi Centrifugal Blowers

Control Systems

blower control family


Blower Accessories


HSI Blower 24 hour Services

Acquired by Atlas Copco in 2012.
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