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Expert HVAC & Plumbing Services in Oklahoma City
Lieber Mechanical has been a trusted provider of HVAC and plumbing services in Oklahoma City since 1949. Founded by Carl M. Lieber and now led by third-generation owner Craig Carroll, our family-owned business combines decades of industry experience with a commitment to quality and customer satisfaction. We specialize in residential and commercial heating, cooling, and plumbing solutions, offering installation, repair, and maintenance services tailored to meet the unique needs of each client.

Our team of licensed professionals is dedicated to delivering reliable, energy-efficient systems while maintaining the integrity and work ethic established by our founders. With over 76 years of service, 2,600+ satisfied customers, and a 4.9-star rating from 150+ five-star reviews, we continue to uphold our reputation as a locally owned leader in the industry.
Services
Air Conditioning Plumbing Heating Commercial HVAC Water Quality
Details
  • Year established: 1949
Highlights and features
  • Locally owned and family-operated since 1949
  • 76 years of combined industry experience
  • 2,600+ satisfied residential and commercial customers
  • 4.9-star rating with 150+ verified five-star reviews
  • Licensed, insured, and background-checked technicians
What people say
76 years of service 150+ five-star reviews Licensed and insured Emergency service available Family-owned tradition
Services
Air Conditioning Repair
Our air conditioning repair services address central air, multi-zone, and geothermal systems. We diagnose and fix refrigerant issues, faulty compressors, and efficiency problems to restore cooling comfort. Technicians provide fast, reliable solutions for residential and commercial properties, ensuring systems operate at peak performance year-round.
Plumbing Installation
We specialize in water heater, tankless system, and sewer line installations. Our team ensures durable, code-compliant plumbing setups for new fixtures, sump pumps, and re-piping projects. Services cater to residential and commercial needs, focusing on efficiency, safety, and long-term functionality for both new constructions and renovations.
Heating Maintenance
Our heating maintenance programs extend system lifespan through annual tune-ups, filter replacements, and inspections. We service furnaces, boilers, and heat pumps, optimizing efficiency and preventing breakdowns. Residential and commercial clients benefit from priority scheduling and expert care to ensure reliable winter performance.
Water Quality
We offer water softeners, filtration systems, and testing to improve residential and commercial water quality. Our solutions address hardness, contaminants, and odors, ensuring safe, clean water for drinking, sanitation, and equipment longevity. Services include system installation, maintenance, and customized treatment plans.
Commercial HVAC
Our commercial HVAC services cover new construction, system installations, and maintenance agreements. We provide tailored solutions for businesses, ensuring energy efficiency and compliance with industry standards. Technicians handle repairs, load sizing calculations, and preventive care to minimize downtime and operational costs.
People
Craig Carroll
Owner
Craig Carroll leads Lieber Mechanical with over 40 years of industry experience. He rebuilt the family business in 2008, focusing on new construction while maintaining its legacy of honesty and quality work. Under his leadership, the company expanded its facilities and service capabilities.
Josh Carroll
VP of Business Development
Josh Carroll drives business growth strategies at Lieber Mechanical. With deep industry knowledge and a focus on client relationships, he ensures the company's expansion aligns with its core values of reliability and community service.
George Christensen
VP of Construction
George Christensen oversees construction projects with expertise in mechanical systems. His leadership ensures commercial installations meet rigorous quality standards while delivering efficient, code-compliant solutions for clients across Oklahoma.
Brian Murphy
Service Manager
Brian Murphy brings 28 years of customer service experience to Lieber Mechanical. As Service Manager, he prioritizes client satisfaction through transparent communication and ensures every HVAC repair meets the company's high standards for excellence.
Stephanie Shelts
Office Manager
Stephanie Shelts manages daily operations with a focus on organizational efficiency. Her role ensures smooth coordination between field technicians and clients, maintaining the company's commitment to timely, professional service delivery.
Questions
Are you licensed and insured?
Yes, we hold Oklahoma Mechanical Contractor License OK 004632 and Plumbing Contractor License OK003957 with full insurance coverage for all services.
Do you offer free quotes?
Yes, we provide free quotes for new HVAC installations, including ACCA-standard load sizing calculations to ensure proper system selection.
What service areas do you cover?
We serve Oklahoma City and surrounding communities including Edmond, Moore, Yukon, Mustang, and El Reno for residential and commercial needs.
What maintenance programs are available?
We offer separate HVAC and plumbing maintenance programs with annual tune-ups, priority scheduling, and discounts on repairs for residential and commercial clients.
How can I schedule service?
Schedule through our website contact form or call (405) 265-4695 directly for immediate assistance with plumbing, heating, or air conditioning needs.
What sets you apart from competitors?
As a family-owned business since 1949, we combine generational expertise with modern technology, maintaining a 4.9-star rating through transparent, customer-focused service.