HVAC Upgrades and Replacements

Design-build mechanical contracting for Texas public schools, municipalities, and hospitals. Reduce operations costs with energy-efficient HVAC upgrades.

Heating, ventilation, and air conditioning systems represent the single largest energy expense and maintenance challenge for public facilities in Texas. E3 delivers comprehensive, design-build mechanical modernizations that replace failing, inefficient equipment with advanced, high-performance HVAC solutions. We manage the entire process from initial engineering through project commissioning, ensuring that your upgrades pay for themselves through guaranteed utility savings. Our open-protocol controls integration prevents vendor lock-in, giving you complete ownership of your indoor environments.

Commercial RTU Replacements

Replace inefficient rooftop units on Texas public facilities with multi-stage RTUs. Reduce peak electrical demand and improve classroom comfort for ISDs.

See Packaged RTU Upgrades

Modernized mechanical room with insulated chilled water piping, circulating pumps, and automated control valves.

Highland Park ISD

See Highland Park ISD’s budget-neutral upgrades.

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Variable Refrigerant Flow (VRF) Systems

Install quiet variable refrigerant flow heat pumps in Texas schools and offices. Deliver precise thermal comfort and lower energy waste via JOC contracts.

View VRF Zoning Installations

Quiet, variable refrigerant flow heat pump condenser unit installed outside school facility.

Boyd ISD

See Boyd ISD’s budget-neutral upgrades.

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Commercial Ventilation Upgrades

Upgrade commercial ventilation and dedicated outdoor air systems in Texas facilities. Ensure fresh air exchange and boost indoor air quality efficiently.

See Ventilation Upgrades

Roof-mounted energy recovery ventilator providing fresh air exchange to classroom facility.

Rio Hondo ISD

See Rio Hondo ISD’s budget-neutral upgrades.

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Commercial Dehumidification Solutions

Control humidity in Texas public facilities and natatoriums with specialized dehumidification systems. Protect indoor air quality and building envelope.

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Dedicated outdoor air system (DOAS) providing humidity control and conditioned outdoor air for school.

Bryan ISD

See Bryan ISD’s budget-neutral upgrades.

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Mechanical Modernization Services

Modernize aging HVAC mechanical infrastructure across Texas public school campuses. Improve airflow, boost indoor air quality, and fund via TIPS contracts.

See Mechanical Modernizations

Modernized mechanical room with insulated chilled water piping, circulating pumps, and automated control valves.

Highland Park ISD

See Highland Park ISD’s budget-neutral upgrades.

Read the Client Story

Chilled Water to DX Conversions

Convert obsolete chilled water loops to high-efficiency DX systems in Texas facilities. Lower maintenance costs and simplify operation for directors.

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High-efficiency condensing hydronic boiler loop with automated variable-speed circulating pumps.

Highland Park ISD

See Highland Park ISD’s budget-neutral upgrades.

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Retro-Commissioning Services

Recommission existing HVAC systems in Texas public buildings to eliminate energy waste. Restore operational performance and lower utility costs quickly.

See Commissioning Projects

Commercial centrifugal chiller assembly positioned in central chilled water plant.

Glen Rose Medical Center

See Glen Rose Medical Center’s budget-neutral upgrades.

Read the Client Story

Ready to Optimize Your Facility?

Contact our Texas energy experts to schedule a free Preliminary Energy Study. Learn how you can fund modern upgrades using guaranteed utility savings.

Request a Free Assessment