Hotstart Inc. is making parts for engine block heating systems out of its 90,000-square-foot facility at 6715 E. Mission, where the Spokane Valley-based manufacturer has just completed a $1.1 million renovation project.

The company began renovating the Hotstart East facility to meet its growing office and manufacturing needs at the beginning of 2026, says Hotstart CEO Terry Judge. Hotstart purchased the building from Spokane Valley-based King Beverage Inc. for $11.5 million in 2023 and had leased part of the building to King Beverage while the distributor built a new warehouse on the West Plains.

In January, King Beverage’s lease ended, and Hotstart began renovations to bring over seven computer numerical control machines and four plastic injection molding machines from the company’s 140,000-square-foot headquarters at 5723 E. Alki in Spokane Valley. Updates also include the installation of new electrical equipment, lighting, and large loading doors.

Spokane Valley-based Silvey Construction Inc. led the project and provided general contracting services, Judge says. Other participating contractors include Spokane Valley-based A.C.I. Coatings LLC; Memphis, Tennessee-based Barnhart Crane and Rigging Co.; Jewell Excavating & Construction Inc., of Spokane Valley; Spokane-based Machine Tool Services Inc.; and Electric Smith Inc., also of Spokane.

“We wanted to start with a blank sheet of paper, so we removed a lot of things and equipment that was left behind,” says Judge.

In addition to making room for equipment, Hotstart also installed a new chiller system dedicated for use by the injection molding machines, which required running compressed air lines throughout the facility, he says.

The company also renovated existing offices and bathrooms, Judge says. Hotstart has 220 Spokane-based employees and employs 250 full-time employees overall. Along with more space, Judge expects the new facility to provide the capacity for additional manufacturing capabilities. The facility isn’t operating at its full production capacity yet, but Judge expects production to ramp up as more employees move to the Hotstart East site and systems come online. 

Hotstart also owns a small storage and employee amenities building called Hotstart South, located south of its headquarters, he adds.

Hotstart manufactures engine block heating systems and sells them to Texas-based Caterpillar Inc., Indiana-based Cummins Inc., and London-based Rolls Royce, the Journal previously reported. In turn, those companies build backup generators and sell them to their own customers, including artificial intelligence-focused data centers.

Data center growth continues to drive demand for Hotstart’s products, Judge contends, and revenue has increased to match. The company earned $96 million in revenue in 2025, and is projected to finish 2026 at $104 million in revenue.

By 2029, Judge forecasts $150 million in annual revenue.

“At our current locations, we've just become tighter and tighter for space,” says Judge. “Years ago, we saw that we were going to need extra space to continue expanding here in Spokane, and to support the continued growth of our business and our manufacturing and administration and all the good folks that we need to employ.”