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Sound Partners’ Marathon HVAC Services Expands Presence in Los Angeles with Acquisition of Kappl Heating & Air Conditioning

Marathon HVAC Services, a prominent player in residential HVAC services in Southern California and portfolio company of Sound Partners, is pleased to announce the successful acquisition of Kappl Heating & Air Conditioning. This strategic acquisition further strengthens Marathon’s position as a key player in the Los Angeles region’s residential HVAC market.

Kappl Heating & Air Conditioning, a second-generation family business established in 1987, has established a strong reputation for delivering exceptional heating and air conditioning solutions to customers throughout the San Fernando Valley. Kevin and Christine Kappl have established a commitment to outstanding customer service and industry expertise that has fostered long-standing relationships with their valued clientele.

“We are proud of the company we have built and the relationships we have established with our customers, technicians, and community,” said Kevin and Christine Kappl. “We have treated our customers like family for 35 years and are proud to have Marathon continue and expand Kappl’s legacy. We are confident that Marathon’s dedication to excellence will continue to serve our loyal customers and skilled technicians well.”

This acquisition marks another milestone for Marathon HVAC Services as it rapidly expands its footprint in the Los Angeles market. Sound Partners, the driving force behind Marathon’s growth, is committed to rapidly scaling and transforming companies under the Marathon banner with best-in-class people, technology, and service.

Zepher Loesch, Founder and Managing Partner at Sound Partners, said, “Kevin and Christine Kappl have built an outstanding business, and we are honored that they trust Marathon to carry forward their legacy. Sound Partners is committed to leveraging our expertise and resources to further enhance Marathon and Kappl’s service offerings and solidify its position as a transformative force in the residential HVAC market. We are excited to continue scaling Marathon and delivering exceptional service to our valued customers.”

Marathon HVAC Services, supported by Sound Partners, continues to see exceptional growth and is actively adding skilled HVAC technicians to service its over 15,000 customers. The company’s expansion through strategic acquisitions and operational enhancements reflects its commitment to delivering excellence to customers while fostering growth and opportunities for employees.

About Sound Partners:

Sound Partners is a lower-middle market private equity fund focused on investing in companies with $2-$20 million in revenue across various sectors. Sound provides companies with operational and strategic support to help accelerate growth and drive long-term value creation. Sound is focused on investing in family and founder-owned businesses looking for support in transitioning to their next phase of growth and professionalization. Sound brings the collective experience of investors that have deployed over $1 billion of capital in private transactions and operators with substantial experience across industries including construction, facility services, distribution, and manufacturing.


About Marathon HVAC Services:

Marathon HVAC Services is a leading residential HVAC company based in Los Angeles, CA. Founded in 1990, the company has built a strong reputation for providing exceptional service and customer satisfaction. Marathon HVAC Services offers a comprehensive range of heating, ventilation, and air conditioning solutions for homeowners throughout Southern California. For more information, visit



Gavin Smith, Media Relations

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