Our Services

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Commercial and Industrial HVAC/R Services

Spaeth Inc. provides comprehensive services tailored specifically to the diverse needs of commercial and industrial HVAC/R clients in Oklahoma City, Tulsa, Lawton, Ardmore, OK.

  • Six rooftop HVAC units with silver piping and electrical boxes.

HVAC Equipment Evaluation and Replacement

HVAC installation services include a complete, end-to-end solution that ensures a smooth and efficient transition to new equipment.  Key features include:

  • Site Evaluation

    We assess your existing HVAC equipment for potential repairs to increase it's useable life span.

  • Custom Design

    If new equipment is preferred, tailored systems will be designed for maximum efficiency.

  • Quick Installation

    Certified professionals install safely and efficiently.

  • Permits & Approvals

    We handle all paperwork.

  • Job Coordination

    Strategic  integration with your management and our subs assures safe and timely installations.

  • Post-Installation Support

    Ongoing service and customer care.

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  • Three HVAC units on a metal rack, with insulated silver ducts and pipes in an industrial space.

Preventative Maintenance

HVAC preventative maintenance, also known as PM services, encompasses major benefits ranging from the possiblity of preventing costly repairs, reduction in emergency calls, improvement of energy efficiency and indoor air quality, regulatory and warranty compliance, and extension of equipment life, reduction in downtime, avoidance of loss in business, boost in employee comfort, and overall operational costs. 

  • Types of HVAC systems

    Our PM service extends to rooftop units (RTUs), split systems, chillers, boilers, VRF/VAV systems, and commerical refrigeration.

  • Core Maintenance Tasks

    The PM core tasks can include, but not limited to, the following:  System inspection and diagnostics, Cleaning and filter replacement, Coil cleaning (evaporator and condenser), Refrieration check, Electrical system testing, Lubrication of moving parts, Calibration of thermostats and controls, Condensate drain inspection and cleaning, Belt inspection and replacement (if applicable), as well as, additional specific system requirements.

  • Scheduling and Frequency

    The schedule and frequency is individualized by customer's needs and system requirements.  Seasonal tune-ups are highly recommended to assist in equipment longetivity.  

  • Reporting and Documentation

    After each visit, detailed service reports, documentation for compliance, warranty validation, and any recommendation for system repairs or upgrades are provided.  

  • Maintenance Agreement Options

    Tailored service plans are customized for your business or facilities.

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Replacements and Retrofits

When repair costs rise and energy efficiency declines, it's time to consider upgrading the HVAC system. We specialize in commercial HVAC replacements and retrofits designed to modernize the equipment, reduce operational costs, and improve indoor air quality. 

  • Assessment and Consultation

    It is important upgrade outdated systems, review the benefits for commercial businesses and facilities, inspect the site, evaluate systems, conduct the system's load calculation and energy efficiency analysis, and provide a detailed customized recommendation based on the type of system, equipment quality, and building needs.

  • Retrofit Services

    Upgrade existing systems with modern components, bring systems up to current regulations, integrate variable speed drives (VFDs), energy-efficient motors, advanced thermostats and controls, smart building automations, and with the importantance of providing minimal disruption.

  • Types of Systems

    The types of full system replacements we provide are included, but not limited to, rooftop units (RTUs), split systems, chillers, boilers, VRF/VAV systems, air units and exhaust systems, and building automation systems (BAS) longetivity.  

  • Project Planning and Execution

    We will provided a timline, coordinate to minimize disruption, follow safety and compliance protocols, and stay in full communication about the project timeline.  

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  • Copper-colored HVAC ducts run across a black ceiling in an unfinished commercial space.

New Construction and Remodels

At Spaeth Inc., we provide comprehensive HVAC solutions for new commercial construction projects and building remodels. From initial design to final installation, we collaborate with architects, general contractors, and facility managers to deliver high-performance, customized design systems tailored to the project's specific requirements, timeline, and thorough communication throughout, ensuring deadlines are met. 


Our team specializes in designing and installing HVAC systems that meet current energy codes, optimize building performance, and provide long-term reliability. With Spaeth Inc., you can rest assured that whether the project involves a new commercial facility or the modernization of an existing space, the HVAC system will be correctly sized, cost-effective, and meet your standards. Our services may include, but not limited to the following: 

  • New Construction

    Design or assist in the project's scope for full system design and engineering, equipment selections and sizing, ductwork and ventilation layout, integration with building automation systems, and coordination with construction schedules and trades.

  • Remodels and Retrofits

    Reconfiguration of exiting systems, upgrades to support new layouts or occupancy changes, replacement of outdated equipment, code compliance and energy efficiency improvements.

  • Types of Systems

    The types of full system replacements we provide are included, but not limited to, rooftop units (RTUs), split systems, chillers, boilers, VRF/VAV systems, air units and exhaust systems, and building automation systems (BAS) longetivity. 

  • Project Planning and Execution

    We will provided a timline, coordinate to minimize disruption, follow safety and compliance protocols, and stay in full communication about the project timeline.  

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Two Experts. One Mission.

Spaeth Inc. and Trinity Power and Renewable Resources are partnering to deliver cutting-edge energy solutions that reduce consumption and drive sustainable success.

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