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Proudly Serving Glendora, Azusa, West Covina & The San Gabriel Valley Since 1982

Dedicated to Maximizing Your Indoor Comfort & Energy Efficiency

Family Owned & Operated Affordable Experienced Honest

NES Mechanical Service Agreements -
"The Smart & Economical Choice"

Residential & Commercial HVAC Agreements
  • Licensed & Insured HVAC Contractor
  • Serving All of the San Gabriel Valley
  • Over 34 Years of Experience
  • Expert Preventative Maintenance for All Major HVAC Brands
  • Quality Workmanship, Affordable Rates
  • 10% Discounts & Priority Service for Repairs

Heating & Air Conditioning Maintenance Contracts for Residents & Businesses in Glendora, Azusa, Covina, West Covina, La Puente, Baldwin Park & Surrounding Areas

Heating and cooling systems have a way of breaking down when you need them most: the coldest day of a frigid winter or the hottest day of a sizzling summer heat wave. These are the days when your indoor comfort system must work its hardest and usually for extended periods of time.

By investing in regular HVAC maintenance, you can often reduce the chance of having an untimely breakdown and catch small problems before they become larger and more costly. Heating and air conditioning tune-ups are designed to prepare your system to be used heavily during the hottest and coldest months of the year, usually following months of dormancy. While even the best maintenance won't prevent normal wear and tear, regular tune-ups significantly help ensure optimal performance of your system, provide a more comfortable indoor environment, reduce repairs, and maximize the life expectancy of your system.

By signing up for our Annual Service Agreement, you'll get two performance tune-ups per year. Having your system checked regularly enables us to keep your unit running as efficiently as possible, which saves you money on your utility bill month after month. These regular check-ups also enable us to catch problems such as loose or burnt wires and freon leaks, before they lead to a larger problem, such as motor failure.

14-Point Performance Air Conditioner Tune-Up

  • Clean condenser coil
  • Inspect evaporator coil if accessible
  • Inspect condensate drain
  • Inspect blower motor
  • Inspect filtration system
  • Adjust blower components
  • Lubricate moving parts as required
  • Inspect for refrigerant leaks
  • Test condensate pump
  • Tighten electrical connections
  • Test starting capabilities
  • Measure air temperature differential
  • Monitor refrigerant pressure
  • Measure amperage and voltage

14-Point Performance Furnace Tune-Up

  • Test for carbon monoxide leaks
  • Clean burner assembly
  • Inspect ignition assembly
  • Inspect blower motor
  • Inspect filtration system
  • Adjust blower components
  • Lubricate moving parts as required
  • Test and adjust safety controls
  • Tighten electrical connections
  • Calibrate thermostat
  • Check flue draft
  • Check combustion
  • Inspect vent piping
  • Inspect humidification system

Energy-Saving Coil Cleaning - Dirty coils reduce efficiency and cause your unit to work harder, causing parts to wear out faster and shorten the life expectancy of your equipment. Your unit will cost you more month after month on your utility bill if the coils are not kept clean. Tests performed by the EPA explain that as little as 1/10th of a centimeter of dirt or dust on a coil could reduce efficiency by 21%. Since the average homeowner's heating and cooling bill is $1,500 per year, a 21% loss in efficiency means you could be wasting up to $315 each year.

Priority Service - When you have an emergency, you can rest assured NES Mechanical will be there! Our commitment to Service Agreements customers means you always get priority service.

Discounted Repairs - When a Service Agreement customer needs to have repairs done on their system, we waive the diagnostic fee and provide a 10% discount on parts and labor.

Labor Warranty - We stand behind the quality of our labor services with a written warranty. If you have a problem within 30 days of service, there will be no charge to come back out and diagnose the problem.

Call us today to discuss our residential and commercial service agreement programs in more detail. Annual service agreements reduce the cost of your Performance Tune-Ups, and we offer multi-year service agreements for every greater savings.

Carrier HVAC Dealer IHACI Member NATE Certified HVAC Technician Hero Registered Contractor
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" This is business that really cares about the customer. They were honest, professional, and helpful in every step of the process. We could not repair the old system (more than 30 years old), so they gave us options, and let us choose what was best for us . . .

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