Scheduled maintenance to keep your commercial HVAC systems running efficiently. We perform regular inspections, cleanings, and adjustments to prevent costly repairs and optimize performance.


Yes, Lieber Mechanical is fully licensed and insured to perform plumbing, heating, and air conditioning services in Oklahoma.
Mechanical Contractor License: OK 004632
Plumbing Contractor License: OK 003957
Yes! We provide free quotes for new system installations for both air conditioning and heating systems. We also offer a Home Comfort Load Sizing Calculation to ensure the correct system for your needs. We don't use back-of-napkin math or "rules of thumb", our thorough review based on industry best practices ensures you get the right size system for your specific house.
Yes, we offer Residential Maintenance Program & Commercial Maintenance Programs. HVAC & Plumbing are two separate programs (each for residential & commercial).
Visit our Careers page to learn more about current openings, including HVAC technicians, plumbing service technicians, and commercial installers. We offer competitive pay, benefits, and opportunities for career growth.
You can schedule a service by filling out the contact form on our website or by calling us directly at (405) 265-4695. Our team is ready to assist with any plumbing, heating, or air needs.
We proudly serve Oklahoma City and the surrounding areas, including:
Lieber Mechanical has been serving the Oklahoma City area for 76 years (since 1949), both Residential & Commercial. Our team has built a reputation for high-quality service and a commitment to customer satisfaction.
We service Oklahoma City and the surrounding areas, including Edmond, Moore, Yukon, Mustang, Piedmont, El Reno, Bethany, Warr Acres, The Village, Nichols Hills, Del City, and Midwest City.
We offer a wide range of services for both residential and commercial properties, including:
Regular maintenance is essential to keeping your HVAC system running smoothly and efficiently. We perform detailed inspections, cleanings, and adjustments to prevent unexpected breakdowns and extend the lifespan of your equipment.
By addressing minor issues before they become major problems, we help reduce the risk of costly repairs and optimize system performance, ensuring that your business stays comfortable year-round.


Full-service installation for new construction and renovation projects, covering HVAC, refrigeration, electrical, and kitchen systems with precision and efficiency.

Comprehensive kitchen equipment servicing, including repairs, maintenance, and installations to keep commercial kitchens fully operational and compliant with industry standards.

Professional electrical repairs, upgrades, and installations, ensuring safety, efficiency, and compliance for commercial buildings and industrial spaces.
We identify the cause of the problem and explain your options clearly, helping you choose the best solution for your home and budget.
Our team completes work efficiently, verifies proper operation, and leaves your home clean and comfortable before we go.
