repairs & RETROFITS

Considering unique circumstances, restorations and upgrades offer distinct advantages over installing brand-new equipment or systems.


Opting for repairs or retrofits depends on facility specifics, yet assessing this can feel daunting without guidance.

 Determining whether to repair or replace hinges on factors like damage extent, system age, energy efficiency priorities, and comprehensive cost evaluation over time.

    YOUR REPAIR partner

    Partnering with a skilled mechanical contractor allows for a thorough evaluation, aiding in informed decisions that match your objectives.

     With our extensive 97-year history of assisting clients in weighing retrofit, repair, or renovation options, we can assess your current system’s suitability for your needs.

    Sample projects


    Replaced pipe insulation, rebuilt evaporative condensers, and replaced screw compressor shaft seals: enhanced system efficiency and performance by making ammonia liquid level adjustments and fine-tuning pressure set points.


    We were asked to repair the corroded and thinning pipe and replace more than 2,000’ of pipe. Refurbished two evaporative condensers, replacing worn bearings, fans, and pulleys and deteriorating cylinders and shrouds. Our Ammonia Technicians disassembled two screw compressors, then reinstalled and aligned the rebuilt compressors once they came back from the manufacturer.

    Completed the annual performance inspection of five King dehumidification units. Carried out the needed repairs, including cleaning coils, replacing belts, changing filters and replacing flame sensors and regulators.


    Which HVAC Equipment Works Best for Retrofitting?

    While retrofit recommendations can fluctuate based on your HVAC equipment type and operational needs, two excellent options for retrofit plans are packaged rooftop units (RTUs) and chillers.

    Packaged Rooftop Units (RTUs): RTUs are often well-suited for various retrofitting scenarios due to their self-contained nature. Some retrofit options for RTUs include:

    • Implementing airside economizers
    • Installing cooling capacity controls
    • Adding supply fan speed controls
    • Implementing demand-controlled ventilation

    Chillers: Chillers offer multiple possibilities for enhancing performance, energy efficiency, and functionality. Retrofitting options for chillers involve:

    • Replacing outdated screw compressors
    • Incorporating condenser fan controls
    • Enhancing chiller controls and sequencing
    • Considering refrigerant retrofits
    What is the difference between repairing and retrofitting?

    Repairing in the context of HVAC refers to the process of identifying and addressing issues or malfunctions within the system. Technicians diagnose and resolve problems, ranging from minor sensor replacements to more complex troubleshooting of electrical faults.

    Conversely, retrofitting involves substantial modifications or upgrades to an existing HVAC system to enhance performance, efficiency, or functionality. This process goes beyond simple repairs and focuses on comprehensive improvements, often requiring a detailed assessment of the current system and strategic adjustments to align it with modern standards and building requirements.

    Will retrofitting my HVAC system save me money?

    In many cases, yes. Any retrofitting service’s primary objective is to enhance your equipment’s performance, efficiency, or functionality. Retrofitting can result in substantial cost savings.

    Committed to safety

    We follow OSHA guidelines to ensure safe work practices, protect personnel, and reduce exposure to jobsite hazards.


    Instead of wrestling with breakdowns or strategizing expansions on your own, let Krauss Company lend a hand.

     Apart from our unwavering dedication to safety and quality, we provide value engineering, exhaustive constructability assessments, and rigorous cost management.