Our Services in New Jersey
León & Sons Mechanical provides heating, air conditioning, commercial refrigeration, HVAC, plumbing and electrical service in New Jersey. Every job is completed by licensed and insured technicians, with emergency response available 24/7.
Complete Mechanical Services Under One License
Seven core services handled by one licensed team. Click any service to see what's included.
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When a unit runs but stops cooling, the cause is refrigerant loss, a failed capacitor or restricted airflow. Emergency AC repair in New Jersey is available on the hottest days. Refrigerant levels, capacitors, compressors and airflow are checked together as one connected system. Adding refrigerant without locating the leak only delays the same call, so leak detection comes first.
What's IncludedGet Free Estimate- Central air installation and repair
- Ductless mini split systems
- Refrigerant leak detection
- Condenser and compressor service
- Seasonal cooling tune ups
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Restaurants, markets, delis and food service operations depend on stable temperature around the clock. Emergency refrigeration repair in New Jersey runs 24/7, because a warm cooler becomes lost inventory within hours. Temperature is stabilized first, and then the root cause is repaired properly. Compressors, condensers, defrost cycles and door gaskets are checked together.
What's IncludedGet Free Estimate- Walk in cooler and freezer repair
- Display case service
- Ice machine repair
- Compressor and condenser replacement
- Door gasket and seal replacement
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HVAC repair, installation and preventive maintenance are all managed by one licensed mechanical contractor in New Jersey. Property owners stop coordinating separate trades, separate schedules and separate invoices. System sizing, ductwork condition and airflow are all evaluated before any new equipment is recommended. HVAC maintenance visits are scheduled twice a year, before heating and cooling season.
What's IncludedGet Free Estimate- System design and sizing
- Installation and replacement
- Ductwork repair and sealing
- Preventive maintenance visits
- Emergency diagnostics
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Slow drains, low water pressure and failing water heaters are handled by licensed plumbers in both homes and businesses. An emergency plumber is available 24/7 when a supply line bursts or a heater floods a basement. Leaks are traced back to the source rather than patched at the visible point. Water heater replacement includes the venting, the connections and disposal of the old unit.
What's IncludedGet Free Estimate- Leak detection and repair
- Drain and sewer cleaning
- Water heater installation
- Repiping and valve replacement
- Fixture installation
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Homes with outdated panels and businesses adding equipment load both need more electrical capacity they can rely on. A licensed electrician in New Jersey handles the permit, the work and the inspection as one single process. Breakers that trip repeatedly point to a load or wiring problem, not a faulty breaker. Panel upgrades are sized for the equipment you run today and the load you plan next.
What's IncludedGet Free Estimate- Electrical panel upgrades
- Rewiring and code corrections
- Lighting installation
- Outlet and switch replacement
- Dedicated circuit installation
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Offices, retail spaces, restaurants and warehouses all lose revenue the moment climate control stops working correctly. Rooftop unit repair and scheduled commercial HVAC maintenance in New Jersey keep equipment ahead of failure. Service is scheduled around your operating hours, including nights, weekends and holidays. Filters, belts, coils and controls are all checked on every visit.
What's IncludedGet Free Estimate- Rooftop unit service
- Split system installation
- Building control systems
- Filter, belt and coil maintenance
- Night and weekend scheduling
Frequently Asked Questions
Do you charge for estimates?
No. Estimates are free and there's no obligation. We'll look at the system, tell you what's actually failing and put the scope and price in writing. If a repair doesn't make financial sense, we'll say that instead of pushing a replacement.
How fast can you get here?
Call and you'll reach someone right away, day or night. Emergency calls move to the front of the schedule, so a technician is dispatched as soon as one is free. You'll get a realistic arrival time, not an all day window.
Are you licensed and insured?
Yes, on both. Every technician who shows up at your property works under the company license and insurance. If a contractor won't confirm that in writing before starting work, that's a reason to keep looking, whoever you end up hiring.
Do you handle both residential and commercial work?
Both. Same technicians, same licensing, same response times. Commercial jobs get scheduled around your operating hours, including nights and weekends, since shutting down a kitchen or a sales floor during business hours costs more than the repair itself.
Can one company really cover HVAC, plumbing and electrical?
That's what a mechanical contractor does. Instead of three companies, three schedules and three invoices, you call one number. It also means nobody points at the other trade when something doesn't line up between systems.
My furnace is blowing cold air. What's wrong?
Usually it's the igniter, the flame sensor or a thermostat that isn't calling for heat correctly. Sometimes it's a safety limit shutting the unit down for a real reason. We'll find which one before quoting, so you aren't paying for guesses.
How long should a furnace last?
Fifteen to twenty years with regular service, less if it has never been maintained. Once repairs start stacking up and the unit is past that range, we'll give you both numbers, repair and replace, and let you decide.
Why is my AC running but not cooling?
Low refrigerant from a leak is the most common cause, followed by a failed capacitor or a dirty coil choking airflow. Adding refrigerant without fixing the leak just delays the same call, so we find the leak first.
How often should air conditioning be serviced?
Once a year, before summer. A tune up catches weak capacitors, low refrigerant and dirty coils while they're still cheap to fix. Most mid summer emergency calls we run are systems that skipped that spring visit.
My walk in cooler isn't holding temperature. What now?
Call right away, then check the door seal and make sure nothing is blocking the evaporator. Those two account for a lot of calls. If it's the compressor or condenser, we run emergency service 24/7.
Do you service restaurant refrigeration after hours?
Yes, 24/7. Coolers don't fail on a convenient schedule and every hour of downtime is product you can't sell. Restaurants, markets and delis get priority, because health code doesn't care what time the compressor quit.
Still have questions? Call
Ready to Get Started in New Jersey?
Tell us which system needs attention and where the property is located. You receive a free written estimate with no obligation. Emergency calls are answered 24/7.