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Business Details
22 Years
experience
Commercial HVAC Services Southern California
Founded in 2004 by industry veterans John Tropila and Jay Sexton, Alliance Heating & Air Conditioning brings decades of combined expertise to commercial HVAC solutions. Our team of certified technicians specializes in system installations, maintenance, and repairs, backed by comprehensive guarantees. With long-standing partnerships across Southern California, including major property management firms like CBRE and Transwestern, we combine technical proficiency with personalized service.

Our commitment to quality is reflected in our licensed and insured operations, in-house design-build capabilities, and a workforce that has grown alongside the company since its inception. We prioritize operational transparency, maintaining rigorous safety standards while delivering cost-effective solutions for diverse commercial environments ranging from medical facilities to retail spaces.
Services
Tenant Improvements New Construction Restaurant HVAC Retail HVAC Medical HVAC Public Works HVAC Design-Build Services Pipe Fitting/Welding Certified Technicians Project Management
Details
  • Year established: 2004
Highlights and features
  • We offer over 15 years of combined experience in commercial HVAC systems from our founding partners
  • Our team includes certified service technicians with specialized commercial HVAC expertise
  • We maintain active partnerships with leading property management firms across Southern California
  • Licensed and insured contractors with C-20 certification for HVAC system installations
  • In-house design-build department handles complex commercial HVAC projects from concept to completion
Services
Tenant Improvements
Specialized HVAC modifications for commercial tenant spaces. Our team designs and implements system upgrades that meet specific business requirements while maintaining energy efficiency. We coordinate directly with property managers and tenants to minimize disruption during renovations.
New Construction
Full-scale HVAC system installations for new commercial buildings. We collaborate with developers and contractors to implement energy-efficient climate control solutions that meet all regulatory requirements. Our in-house design team ensures optimal system placement and performance.
Restaurant HVAC
Specialized ventilation and climate control systems for food service establishments. Our technicians understand the unique requirements of commercial kitchens, including grease management and temperature regulation for both front and back-of-house operations.
Design-Build Services
Comprehensive HVAC planning and implementation from concept to completion. Our design-build approach streamlines project timelines while ensuring system specifications align perfectly with building requirements and energy efficiency standards.
Certified Technicians
Preventive maintenance programs performed by factory-trained technicians. We offer customized service schedules to maintain system efficiency, extend equipment lifespan, and ensure compliance with manufacturer warranty requirements for commercial HVAC systems.
People
John Tropila
Owner
With 15 years in commercial HVAC prior to founding Alliance, John manages daily operations and financial aspects. His expertise in project scheduling and cost management ensures efficient service delivery across all client accounts.
Jay Sexton
Owner
Bringing equal industry experience, Jay oversees field operations and technician management. His technical background in HVAC installation ensures quality control across all projects while maintaining direct client communication throughout service delivery.
Questions
What commercial HVAC services do you specialize in?
We provide complete HVAC solutions including system installations, preventive maintenance, emergency repairs, and design-build services for commercial properties across Southern California.
How long has Alliance been serving Southern California?
Our company has delivered commercial HVAC services throughout Southern California since our founding in 2004 by industry veterans John Tropila and Jay Sexton.
Are your technicians certified and insured?
All our service technicians maintain current certifications and we operate with full insurance coverage including liability and workers compensation policies.
What types of commercial properties do you service?
We handle HVAC requirements for diverse commercial environments including medical facilities, restaurants, retail spaces, and public works projects across Southern California.
Do you offer emergency HVAC repair services?
While we focus on scheduled maintenance and installations, we maintain partnerships to ensure our clients receive timely emergency HVAC support when needed.