When your commercial rooftop unit fails, every minute of downtime costs your business money. Since 1979, L & H Services Inc. has provided fast, reliable commercial rooftop unit repair throughout Beecher, IL and surrounding communities including Frankfort, Crete, Peotone, and Monee.
Our experienced commercial technicians diagnose and repair all makes and models of rooftop HVAC units, from 3-ton single-zone systems to 25+ ton multi-zone units. We arrive prepared with common commercial parts and diagnostic equipment to resolve most issues on the first visit, minimizing your downtime.
Whether you're dealing with a complete system failure, inadequate heating or cooling, unusual noises, high energy bills, or any other RTU problem, our team has the expertise to diagnose the root cause and provide a lasting repair.
Call L & H Services Inc. at (708) 231-4800 or contact us online for immediate commercial RTU repair service. We provide priority emergency service for businesses that can't afford downtime.
L & H Services Inc. provides fast-response commercial rooftop unit repair throughout Beecher, IL and surrounding communities. Our extensive service area ensures businesses throughout the region have access to emergency HVAC repair when they need it most.
Commercial rooftop units are complex systems that integrate heating, cooling, ventilation, and controls into a single package. They operate under conditions far more demanding than residential equipment—running extended hours, often 24/7, while exposed to harsh weather on your building's roof. Proper repair requires technicians who understand these unique commercial demands.
Common RTU failures include compressor problems, refrigerant leaks, electrical component failures, control board issues, economizer malfunctions, and fan motor problems. Our technicians use professional diagnostic equipment to identify the root cause quickly, not just the symptoms, ensuring repairs last and prevent recurring issues.
We stock common commercial HVAC parts on our service vehicles and have priority access to replacement components through our established supplier relationships. When parts aren't immediately available, we provide temporary solutions when possible to keep your business operational while we source what's needed.
Looking for proactive service? We also offer RTU installation and replacement and preventive maintenance programs. For other commercial services, see our refrigeration repair and cooking equipment repair pages.
RTU emergency in Beecher? L & H Services Inc. provides priority emergency repair service for business customers. Contact us now for fast response that minimizes downtime.
45+ Years Experience
Licensed & Insured
All Brands Serviced
24/7 Emergency
When your commercial HVAC fails, we respond quickly. Our priority emergency service gets experienced commercial technicians to your business fast, equipped with diagnostic tools and common parts to resolve most issues on the first visit.
Emergency Service Features:
We repair all makes and models of commercial rooftop units, regardless of who installed the equipment. Our technicians are trained on all major commercial HVAC brands.
Brands We Service:
Compressor and refrigerant issues are among the most common and costly RTU failures. Our technicians diagnose and resolve these quickly.
Repair is typically the best option for newer equipment or when the repair cost is reasonable relative to the unit's remaining useful life.
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Get answers to your RTU repair questions
We provide priority emergency service for commercial customers and respond as quickly as possible. Response times vary based on time of day and current service volume, but we understand commercial HVAC failures are urgent and prioritize business customers accordingly. Call (708) 231-4800 for immediate emergency service.
Yes, we provide emergency service for commercial HVAC failures outside normal business hours. We understand that businesses can't wait for regular hours when their heating or cooling system fails. Call us any time for emergency commercial RTU repair service.
Repair costs vary widely depending on the problem, parts needed, and unit size. Minor repairs like a capacitor or contactor replacement are relatively affordable, while major repairs like compressor replacement are more significant investments. We provide a written estimate before starting any repair work so you can make an informed decision.
The most common failures include compressor problems, refrigerant leaks, electrical component failures (capacitors, contactors, relays), control board issues, economizer malfunctions, fan motor failures, and clogged or dirty coils. Many of these can be prevented with regular maintenance.
When possible, yes. If a permanent repair requires parts that aren't immediately available, we explore temporary solutions to restore partial operation and keep your business running. The specific options depend on the nature of the failure, but we always communicate clearly about what's possible.
Absolutely. We service and repair all commercial rooftop units regardless of who installed them. Many businesses come to us after being dissatisfied with another provider's service. We work on all brands and models.
Regular professional preventive maintenance is the single most effective way to prevent breakdowns. Scheduled maintenance catches minor issues before they cause failures, keeps components clean and operating efficiently, and extends equipment life. We recommend 2-4 service visits per year depending on your operating conditions.
Unusual noises from your rooftop unit should be investigated promptly. Grinding or screeching may indicate a failing bearing, rattling could be loose components, and banging might signal a compressor issue. While not always an emergency, addressing these sounds quickly can prevent a minor problem from becoming a major failure.
Yes. After diagnosing the problem, we provide a clear, written estimate detailing the necessary repairs and costs before beginning any work. You'll know exactly what's needed and what it will cost. If we discover additional issues during repair, we'll communicate those before proceeding.
A unit that runs but doesn't cool effectively could have low refrigerant, a failing compressor, dirty coils, a malfunctioning economizer, restricted airflow, or a control system issue. This is a common service call and our technicians can quickly diagnose the root cause and restore proper cooling.
Get fast, reliable commercial rooftop unit repair in Beecher, IL. Our technicians provide priority emergency service for businesses.
24/7 Emergency Service for Businesses
Don't let a broken rooftop unit disrupt your business. Get fast, professional RTU repair from L & H Services Inc.. Since 1979, we've been the trusted commercial HVAC repair provider for businesses throughout Beecher, IL and surrounding communities.
Our experienced commercial technicians arrive prepared with the diagnostic tools and common parts needed to resolve most RTU problems on the first visit. We understand that every hour without heating or cooling costs your business, and we work efficiently to get your system back online.
After repairs, ask about our preventive maintenance programs that reduce the likelihood of future breakdowns and extend your equipment's life.
Call L & H Services Inc. at (708) 231-4800 or contact us online for commercial RTU repair service throughout Beecher, Peotone, Crete, Frankfort, Monee, and all of Will County.
When your commercial HVAC system fails, L & H Services Inc. delivers the fast, reliable repair service your business needs to get back to normal.