--- title: Commercial HVAC Service & Maintenance description: Regional HVAC service and OEM parts for high-demand facilities. Backed by three industry leaders, our network ensures scalable, expert-driven support. --- [Skip to the main content.](https://www.etshvac.com/solutions/hvac-service#main-content) [About](https://www.etshvac.com/about)     [Careers](https://www.etshvac.com/about/careers)      |     [**Line Card  **](https://www.etshvac.com/hubfs/ETS%20Linecard%2010.31.2024.jpg) [![ETS-Logo-Color](https://www.etshvac.com/hs-fs/hubfs/ETS-Logo-Color.png?width=200&height=77&name=ETS-Logo-Color.png "ETS-Logo-Color")](https://www.etshvac.com/) [![logo white-1](https://www.etshvac.com/hs-fs/hubfs/logo%20white-1.png?width=200&height=95&name=logo%20white-1.png "logo white-1")](https://www.etshvac.com/) - [Solutions](https://www.etshvac.com/solutions) - [Equipment Sales](https://www.etshvac.com/solutions/hvac-maintenance-contracts) - [Parts](https://www.etshvac.com/solutions/parts) - [Services](https://www.etshvac.com/solutions/hvac-service) - [Balancing Services](https://www.etshvac.com/solutions/balancing-services) - [LG Training Academy](https://www.etshvac.com/solutions/lg-training-academy) - [Products](https://www.etshvac.com/hvac-equipment) - [Industries](https://www.etshvac.com/industries) - [Projects](https://www.etshvac.com/projects) [Contact Us](https://www.etshvac.com/contact) Toggle Menu Toggle Menu [Contact Us](https://www.etshvac.com/contact) - [Solutions](https://www.etshvac.com/solutions) - [Equipment Sales](https://www.etshvac.com/solutions/hvac-maintenance-contracts) - [Parts](https://www.etshvac.com/solutions/parts) - [Services](https://www.etshvac.com/solutions/hvac-service) - [Balancing Services](https://www.etshvac.com/solutions/balancing-services) - [LG Training Academy](https://www.etshvac.com/solutions/lg-training-academy) - [Products](https://www.etshvac.com/hvac-equipment) - [Industries](https://www.etshvac.com/industries) - [Projects](https://www.etshvac.com/projects) ###### [  Equipment Sales Reliable, energy-efficient HVAC equipment tailored to your project needs.](https://www.etshvac.com/solutions/hvac-maintenance-contracts) --- ###### [ Parts In-stock OEM and replacement parts to keep your systems running smoothly.](https://www.etshvac.com/solutions/parts) --- ###### [ Balancing Services Certified testing and balancing to ensure peak system performance.](https://www.etshvac.com/solutions/balancing-services) ###### [  HVAC Services Comprehensive service and support to maximize equipment life and efficiency.](https://www.etshvac.com/solutions/hvac-service) --- ###### [  LG Training Academy Hands-on training to equip professionals with the latest LG HVAC expertise.](https://www.etshvac.com/solutions/lg-training-academy) ######   Commercial & Industrial --- ######   Education --- ######   Healthcare --- ######   Hospitality --- ######   Data Centers --- ######   Industrial & Manufacturing --- ######   Government & Municipal ######   Transportation & Infrastructure --- ######   Agriculture --- ######   Food & Beverage --- ######   Retail --- ######   Fitness & Recreation --- ######   Seionr Living --- ######   High-Rise Residential Buildings [![Featured Project DuPont Experimental Station Replacement Project](https://no-cache.hubspot.com/cta/default/445958/interactive-182531398920.png)](https://cta-service-cms2.hubspot.com/web-interactives/public/v1/track/redirect?encryptedPayload=AVxigLJhj0tB2WxpB6aZKCqi6keci4mgBwpHvLUxFe55AQbUS%2BecluVOGTV4Mv%2FRsC9l1oYVbIa57oeEJ4aApVWOYVWPy%2BXKVSFqfBDJNuK4byKR2unW9Qn3DtRJtFO3MjCT7EddSYXBzdxWI8g%2BtlOpe41JWbAUUT8m5j9k8MQubWlBzbCt32x375t62LM0tIv1KQJwv4VNLeRibnhdc%2BaB3jSV8P739WOcIkS5JsK96Dro5HcRSW73MYv%2FOEDKy%2BrDuqO6%2Bw%2F5Lp3cVmOypdKdmq5VYiwdwaijVaVAPu2nig%2BNTvKC9RJD40MLFlZ3kPYo6%2BNEoENv8FEW0XIKjOdE3wHk0LQQbIlGcDO%2B8t4oTK4vfPtC7VQ6Ai07OrWIN5%2BJvpFxu%2Bomu34O0GTHkoQH9q4gyF9tVkBIE4bLSqsGEBEtIFznfqtE4KzGjN%2Bdj46YcKJKJn19LNFCiPSf0HaySXrj15BxuuKyC99ijd5ibszvsqy7rinDVSA%2Fy3KVBfx8dU%2FBB2jGjYGmttWTth2zwRlWPzhat0eLk0F%2FQnXswTYuOvVQMTyGgcDTNERwT9%2Br2ni1ugClcln9w%2F%2BoZ2iGe6Oo89qwSNhxCZns7nhnKtiERVUm34QREQ%3D%3D&webInteractiveContentId=182531398920&portalId=445958) ### Service # Always On HVAC service built for uptime across high-demand, multi-site facilities. Our expert network ensures scalable, proactive support where and when you need it. [Contact Service](https://www.etshvac.com/contact) [Download Brochure](https://www.etshvac.com/hubfs/Service%20Bifold.pdf) ## Three Industry Leaders. One Unified Service Team. ETS, Engineered Building Systems, and Klima New Jersey have come together to deliver expert-driven HVAC service and OEM parts across the Northeast. From fast response to proactive planning, we bring consistency, coverage, and cost control to commercial and mission-critical facilities. #### Scalable Service Multi-site support with standardized expertise across your full portfolio. #### Data-Driven Strategy Proactive service solutions built on performance insights and operational goals. ![High- Efficiency Cooling Towers and Closed Circuit Coolers](https://www.etshvac.com/hs-fs/hubfs/Evapco_forLIFE%20-%20TRANSPARENT.png?width=2026&height=554&name=Evapco_forLIFE%20-%20TRANSPARENT.png) ![Air Cooled and Water Cooled VRF, Ductless Splits, & Ventilation Solutions](https://www.etshvac.com/hs-fs/hubfs/images/logos/LG%20Logo.png?width=1000&height=500&name=LG%20Logo.png) ![Custom- Engineered Air Handling Units](https://www.etshvac.com/hs-fs/hubfs/Ingenia%20logo.jpg?width=1024&height=339&name=Ingenia%20logo.jpg) ![Custom All-Aluminum Air Handling Units](https://www.etshvac.com/hs-fs/hubfs/Air%20Enterprises%20logo.png?width=650&height=130&name=Air%20Enterprises%20logo.png) ![GOLD Series Air Handling Units with Integral Heat Recovery Wheels](https://www.etshvac.com/hs-fs/hubfs/images/logos/4%20-%20Swegon%20Logo%20JPG.jpg?width=2793&height=800&name=4%20-%20Swegon%20Logo%20JPG.jpg) ![Air Handling & Blower Coil Units, Air Curtains & Ai Heaters](https://www.etshvac.com/hs-fs/hubfs/images/logos/VTS%20Logo.png?width=101&height=55&name=VTS%20Logo.png) ![Water Source Heat Pumps & Modular Chillers](https://www.etshvac.com/hs-fs/hubfs/WaterFurnace_Commercial_Logo.png?width=1390&height=356&name=WaterFurnace_Commercial_Logo.png) ![Dedicated Outside Air Solutions](https://www.etshvac.com/hs-fs/hubfs/images/logos/Addison%20logo.png?width=204&height=36&name=Addison%20logo.png) ![Integrated Control Solutions for Commercial Industrial & Critical Applications](https://www.etshvac.com/hs-fs/hubfs/honeywell-FCU-logo-color.png?width=264&height=164&name=honeywell-FCU-logo-color.png) ![Custom and Replacement Packaged Rooftop & AHU’s; Multizone, Single Zone & Energy Recovery Systems](https://www.etshvac.com/hs-fs/hubfs/Seaons4%20logo.png?width=3642&height=1217&name=Seaons4%20logo.png) ![Modular Central Plants and Modular Pumping Systems](https://www.etshvac.com/hs-fs/hubfs/images/logos/Systecon-logo.png?width=841&height=209&name=Systecon-logo.png) ![Solid Separators & Media Systems](https://www.etshvac.com/hs-fs/hubfs/images/logos/Lakos%20Logo.jpg?width=300&height=300&name=Lakos%20Logo.jpg) ![ Air Purification Solutions for Indoor Environments](https://www.etshvac.com/hs-fs/hubfs/images/logos/air%20plus%20logo.png?width=612&height=320&name=air%20plus%20logo.png) ![Modular Air Cooled and Water Cooled Chillers](https://www.etshvac.com/hs-fs/hubfs/images/logos/multistack%20logo.jpg?width=525&height=525&name=multistack%20logo.jpg) ![Low- Temperature Refrigeration & Dehumidification Solutions](https://www.etshvac.com/hs-fs/hubfs/images/logos/BMIL%20logo.jpg?width=360&height=182&name=BMIL%20logo.jpg) ![Expert Technician](https://www.etshvac.com/hs-fs/hubfs/section%204-1.webp?width=1200&height=900&name=section%204-1.webp) ## Expert Technicians. Seamless Response. Our Strategic Response Network connects skilled HVAC professionals across the region—ensuring faster deployment, system expertise, and standardized service quality wherever you operate. ## Predictable, Preventative Service Stop reacting to failures. We deliver scheduled maintenance, diagnostics, and system monitoring to extend lifespan, reduce emergency costs, and boost long-term performance. ![Predictable Service](https://www.etshvac.com/hs-fs/hubfs/section%204%20(1).webp?width=1200&height=900&name=section%204%20(1).webp) ![Parts You Need Fast](https://www.etshvac.com/hs-fs/hubfs/section%204%20(2).webp?width=1200&height=900&name=section%204%20(2).webp) ## The Parts You Need—Fast With a robust OEM inventory, regional distribution, and manufacturer-certified components, we minimize downtime and streamline repairs—even in supply-constrained environments. ## Featured Projects #### [![Exterior view of the Chemours Discovery Hub, a modern research facility at the University of Delaware’s STAR Campus.](https://www.etshvac.com/hubfs/images/Chemours.webp) Chemours Discovery Hub HVAC Solution Energy Transfer Solutions partnered with IMC Construction to design an advanced HVAC solution for the Chemours Discovery Hub at the University of Delaware’s STAR Campus. This 312,000 sq. ft. research facility features modular systems for efficiency, supporting 330+ scientists in groundbreaking innovation.](https://www.etshvac.com/projects/chemours) #### [![Exterior view of 101 North Queen Street, a revitalized historic building featuring retail, office, and residential spaces in downtown Lancaster, PA.](https://www.etshvac.com/hubfs/images/101%20N%20Queen%20St.webp) Adaptive HVAC for Historic 101 North Queen Energy Transfer Solutions collaborated with LG to deliver a flexible HVAC system for the historic 101 North Queen Street building in Lancaster, PA. Using LG’s VRF technology, the project accommodated evolving tenant needs while preserving the building’s architectural integrity.](https://www.etshvac.com/hubfs/pdf/10-28-20-%20Queen-poster%20for%20review.pdf) ![Dupont](https://www.etshvac.com/hubfs/images/Dupont.webp) #### DuPont Experimental Station Cooling Tower Upgrade Energy Transfer Solutions collaborated with Pennoni and M Davis to replace a 63-year-old, 6,000-ton cooling tower at DuPont’s Experimental Station with a modular 10,000-ton system. Completed in just eight months, this upgrade enhanced efficiency, reduced energy consumption, and minimized site disruption. #### [![Southside commons](https://www.etshvac.com/hubfs/images/Southside%20commons.webp) Smart Climate Control for SouthSide Commons Energy Transfer Solutions provided advanced HVAC solutions for Lehigh University's SouthSide Commons, a 426-bed residence hall. Featuring LG VRF systems and rooftop units, this system ensures energy-efficient climate control for student comfort and modern living.](https://www.etshvac.com/projects/southside-commons) ## Talk to Our Service Team Today From one facility to a regional portfolio, ETS helps you reduce downtime, improve performance, and streamline your HVAC strategy. Use the form below to start a conversation or request immediate support. ## Recent Blogs ##### [Operate Your Cooling Tower in Winter Immersion Basin Sump Heaters from Energy Transfer Solutions](https://www.etshvac.com/blog/operate-your-cooling-tower-in-winter-immersion-basin-sump-heaters-from-energy-transfer-solutions)   Are you looking to optimize your HVAC system's performance and reduce operational costs? Energy Transfer Solutions in... ##### [Navigating Government Refrigerant Changes: What It Means for Commercial HVAC Systems](https://www.etshvac.com/blog/navigating-government-refrigerant-changes-what-it-means-for-commercial-hvac-systems)   The commercial HVAC industry is undergoing significant changes due to new government regulations on refrigerants. These... ##### [Why Energy-Efficient HVAC Systems are Crucial for Modern Buildings](https://www.etshvac.com/blog/why-energy-efficient-hvac-systems-are-crucial-for-modern-buildings)   In today's eco-conscious world, energy efficiency is not just a trend but a necessity. Modern buildings must adopt... ## Get scalable HVAC support you can count on, 24/7. 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