On New Installations Contact AC & Heating Company

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

The Best Choice for Heating & Air Conditioning Service in Glendora & the San Gabriel Valley

NES Mechanical provides high-quality, affordable heating and air conditioning services in Glendora, Azusa, Covina, West Covina, La Puente, Baldwin Park, and surrounding cities. Our family-owned and -operated business has served the local community for more than 34 years and cultivated a reputation for exceptional service. As a result, we've become one of the preferred HVAC companies in the San Gabriel Valley for heating and air conditioning repairs, tune-up/maintenance, sales, installation, and replacement; ductwork installation, repair, and replacement; and whole-home air filtration systems. As a testament to our reliable workmanship, fair prices, and honest business practices, we have thousands of satisfied residential and commercial clients and a large base of loyal customers who always call us first for all their heating and cooling needs.

Experienced, NATE-Certified HVAC Technicians

At NES Mechanical, we are dedicated to your indoor comfort, which is why we have made it a priority to have highly qualified staff, superior HVAC products, and an unwavering commitment to complete customer satisfaction. Our heating and air conditioning service technicians have an average of 10+ years of industry experience and are all certified by North American Technician Excellence (NATE). NATE-certified HVAC technicians have proven their expertise in heating and air conditioning repair and service, furnace and AC installation, and/or commercial HVAC. This means that you can rely on our technicians to be thoroughly knowledgeable in the best practices for repairing, maintaining, and installing heating and air conditioning systems.

Call Today for Heating & Air Conditioning Repairs, Sales, Installation or Maintenance in Glendora, Covina, Azusa, Baldwin Park, La Puente & Other Nearby Cities in the San Gabriel Valley

Call NES Mechanical today for the San Gabriel Valley's best value in heating and air conditioning service. We offer free on-site or in-home consultations with a technician for all new installations. Our experienced technicians are experts in customizing heating and air conditioning systems for maximum comfort and optimal energy efficiency. They can design a solution for your specific needs, and provide options to fit nearly any budget. Additionally, they can make you aware of current tax rebates and incentives and review the financing options available through Carrier and the HERO program. We also offer reliable heating and air conditioning repair and maintenance services for all major brands at fair and competitive prices. NES Mechanical is a fully licensed and insured heating and air conditioning contractor centrally located in the San Gabriel Valley.

100% Satisfaction
Carrier HVAC Dealer IHACI Member NATE Certified HVAC Technician Hero Registered Contractor


" 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 . . .

Read More

Service Area Map

San Gabriel Valley HVAC Services
Contact Us
New Equipment Gallery
  • Infinity Series Air Conditioner
  • Infinity 16 Air Conditioner
  • Performance Series Air Conditioners
  • Performance 17Air Conditioners
  • Comfort Series Air Conditioners
  • Performance Series Heat Pumps
  • Infinity ICS Gas Furnace
  • Performance Boost 90 Gas Furnace
  • Infinity 80 Gas Furnace
  •  Performance Boost 80 Gas Furnace
  • Performance 80 Gas Furnace with Comfort Heat Technology
  • Comfort 80 Gas Furnace
  • Carrier Infinity 98 Furnace
  • Air Filtration Products
  • Ultra Slim Edge Thermostats
  • Carrier's Edge Thermostats
  • Infinity Comfort Control
View All
Visa MasterCard American Express Discover
  • Alhambra, CA
  • Altadena, CA
  • Arcadia, CA
  • Azusa, California
  • Baldwin Park, CA
  • City of Industry, CA
  • Covina, California
  • Duarte, California
  • El Monte, CA
  • Glendora, CA
  • La Canada Flintridge, CA
  • La Puente, CA
  • La Verne, CA
  • Monrovia, CA
  • Montebello, CA
  • Monterey Park, CA
  • Pasadena, CA
  • Rosemead, CA
  • San Gabriel, CA
  • San Marino, CA
  • Sierra Madre, CA
  • South El Monte, CA
  • South Pasadena, CA
  • Temple City, CA
  • West Covina, CA