Gemspring-backed AMPAM Parks Mechanical acquires Coastal Fire & Integration Systems, adding fire protection and low-voltage to its California MEP platform

On June 11, 2026, AMPAM Parks Mechanical, Inc. announced that it had acquired Coastal Fire & Integration Systems, a Poway, California-based provider of fire protection, low-voltage infrastructure, and life safety systems. Financial terms of the transaction were not disclosed.

Coastal Fire & Integration Systems was founded in 2014 by Denny Stover and provides consulting, design, installation, inspection, and quality-control services across fire protection and low-voltage infrastructure. The company has built its presence in Southern California by working with multifamily and mixed-use developers from preconstruction planning through installation, inspection, and ongoing quality assurance. Stover joins AMPAM as part of the transaction; AMPAM's announcement did not specify a successor leadership structure for Coastal.

The acquisition broadens AMPAM's offering for multifamily, mixed-use, hospitality, student housing, and senior living projects across California. With fire protection and low-voltage added to its existing MEP capabilities, AMPAM can now deliver a wider set of building systems through a single provider — a positioning that has become increasingly relevant as modern developments combine mechanical, electrical, plumbing, fire protection, communications, and security infrastructure under tighter coordination and regulatory requirements.

About AMPAM Parks Mechanical

AMPAM Parks Mechanical was founded in 1978 as a plumbing contractor and has since grown into one of California's largest providers of integrated mechanical, electrical, plumbing, and service solutions. The company delivers preconstruction, prefabrication, installation, and maintenance services across a broad range of project types in commercial, multifamily, and institutional construction. AMPAM is led by chief executive officer Payman Farrokhyar and is headquartered in California.

In announcing the transaction, Farrokhyar said: “Coastal has built a strong reputation for technical expertise, responsiveness, and trusted customer relationships, and we are pleased to welcome Denny and the Coastal team to AMPAM. This acquisition strengthens our integrated platform and supports our continued growth as a trusted partner to developers, builders, and clients throughout California.”

Stover added: “Since our founding, we have focused on building a company grounded in quality, trust, and long-term relationships. AMPAM shares those values, and this partnership provides additional resources, capabilities, and opportunities for our team while allowing us to continue delivering the service and responsiveness our clients expect.”

About Gemspring Capital

Gemspring Capital is a Westport, Connecticut-based middle-market private equity firm that invests in companies it can scale through operational improvement and strategic acquisitions. The firm reports approximately $5.1 billion in capital under management and has been active across industrial, business services, and technology-enabled sectors. AMPAM has operated as a Gemspring portfolio company through its current build-out as an integrated California MEP platform.

What this means for trades M&A

The AMPAM-Coastal transaction is a useful data point on two dynamics worth tracking in commercial mechanical M&A. First, the platform thesis among PE-backed MEP contractors continues to broaden beyond traditional HVAC, plumbing, and electrical scopes. Fire protection, low-voltage, life safety, and security are increasingly being pulled inside the same operating company rather than left to subcontractor coordination. For developers and general contractors managing California's tighter code environment and more complex multifamily and mixed-use projects, a single provider that can deliver MEP, fire, and low-voltage as one bid has a real operational advantage — and that advantage is becoming part of how PE-backed platforms differentiate themselves in the market.

Second, smaller specialty contractors like Coastal — a roughly 12-year-old founder-led business with strong regional relationships in a focused service area — are exactly the kind of acquisition target that fills out an established platform's capability matrix. The structures, valuations, and roles available to owners of these businesses vary considerably depending on whether the buyer is a strategic, a PE-backed platform, a family office, or an independent sponsor. The right partner depends on what the owner wants the next chapter to look like for the team, the brand, and themselves.