National Air & Energy

Business Details

31 Years

experience

Emergency

services

Trusted HVAC Solutions in San Diego

National Air & Energy has been a trusted mechanical contracting partner since 1995, delivering comprehensive HVAC solutions to commercial, industrial, and institutional clients across San Diego and surrounding regions. Our family-owned business combines technical expertise with a commitment to safety and customer care, offering end-to-end services from preventative maintenance to complex retrofit projects. With over 100 employees and specialized departments including building automation and controls, we provide tailored mechanical solutions that prioritize efficiency, reliability, and cost-effectiveness. Our 24/7 service team ensures rapid response for emergency repairs, while our preventative maintenance programs and water treatment services help clients maximize equipment longevity.

As the exclusive San Diego representative for Siemens TALON building automation systems, we maintain industry leadership through innovation and technical excellence. Our corporate mission emphasizes treating clients and employees with respect while delivering mechanical solutions that meet evolving facility needs. Through consistent growth and adherence to founder Ron Wells' core values, we continue to build long-term partnerships based on trust and performance-driven results.

Services

HVAC Maintenance Building Automation Retrofit Projects 24/7 Emergency Service Water Treatment Tenant Improvements Mechanical Construction

Details

Year established: 1995

Highlights and features

We offer 24/7 emergency HVAC service with immediate technician dispatch
Our in-house building automation experts specialize in Siemens TALON systems
28 years of experience serving San Diego's commercial and industrial markets
Three-point preventative maintenance program ensures equipment reliability
Exclusive local representation for Siemens TALON building automation products

Website

Update Listing

Services

HVAC Maintenance

Our preventative maintenance programs ensure optimal HVAC performance through scheduled inspections and repairs. Technicians conduct thorough equipment checks, provide detailed service reports, and offer immediate repair proposals. Customizable frequency options range from one-time visits to comprehensive monthly water treatment programs, helping clients prevent breakdowns and extend equipment lifespan while maintaining energy efficiency.

Building Automation

As San Diego's exclusive Siemens TALON representative, we design and implement advanced building automation solutions. Our systems optimize energy usage, improve occupant comfort, and simplify facility management through centralized control interfaces. Services include system modernization, BMS programming, and integration of HVAC, lighting, and security systems to create intelligent building environments that reduce operational costs.

Retrofit Projects

We specialize in complex retrofit solutions that enhance system efficiency while minimizing facility downtime. Our capabilities include cooling tower replacements, chiller modernizations, and control valve upgrades. The team implements energy efficiency retrofits and Title 24 compliance modifications, along with air/water filtration systems and odor control solutions that improve indoor environmental quality for commercial and industrial spaces.

24/7 Emergency Service

Our round-the-clock service team provides immediate response for HVAC emergencies with direct technician access. Multi-site service agreements ensure consistent support across locations, while off-site system monitoring identifies potential issues before failures occur. Emergency repairs include equipment diagnostics, component replacement, and system recommissioning to restore operations with minimal disruption to business activities.

Water Treatment

Professional water treatment programs maintain optimal system efficiency through chemical balance management and equipment monitoring. Technicians perform regular water analyses, adjust treatment levels, and install automated monitoring systems for continuous operation. Services prevent scale buildup, corrosion, and biological fouling in chilled water, condenser water, and domestic water systems, ensuring mechanical components operate at peak performance while extending equipment longevity.

Questions

What HVAC services do you offer for commercial buildings?

We provide full-service HVAC solutions including preventative maintenance, emergency repairs, system retrofits, and building automation for commercial, industrial, and institutional properties.

Do you provide 24/7 emergency HVAC support?

Yes, our service team is available 24 hours a day, 7 days a week for emergency repairs with immediate technician dispatch capabilities.

What areas do you serve?

We primarily serve San Diego County and surrounding Southern California regions for all mechanical contracting needs.

Are you certified to work with specific HVAC systems?

We are the exclusive San Diego representative for Siemens TALON building automation and controls products, with specialized expertise in their integration.

What preventative maintenance options are available?

Our customizable programs include monthly water treatment, equipment inspections, air quality testing, and comprehensive maintenance contracts with detailed service reporting.

Reviews (6)

Write a Review

Jose B.

Nov 28, 2020 Report

Bad experience with the employee. Did terrible work. Left a mess. Will file a complaint with BBB. Rep damaged property

D. J.

Oct 09, 2020 Report

Today while replacing an AC unit at my property in Mission Valley, the tech verbally and physically assaulted me. He jumped my patio wall and attacked me. The police were called and he was arrested. Why this company employees people like this is beyond me. Violent offenders need to fired and locked up. I have contact channel 10 news HGTV to run this story. As I will every news station in this city.

He messed with the wrong tenant here. I have a broke blood vessel in my eye and bruises on my back and shoulders. Not to mention the damaged property by this punk employee. It was all caught with audio

Evan Aguayo

Dec 12, 2019 Report

Very responsive and on time. The quote was much cheaper than the competition, the cord was provided in a timely manner as promised. This was to replace shaft, blowers and bearings on a cooling tower.

Jeff Nash

Nov 17, 2019 Report

I've got a water source heat pump HVAC unit in my small business. Had maintenance, repair and servicing all done previously by "Stay Cool Mechanical Air" who were excellent. National Air and Energy bought "Stay Cool". Then sent a service tech to my business, Joe, who was completely unsatisfactory and an hour and a half late. This was the first visit of a brand new annual service contract. Joe did none of what was promised as part of the servicing agreement and left with the unit still not operating properly. I called to complain, and Mono in their Servicing Department cancelled my contract. I wouldn

Annie Oakley

Sep 18, 2019 Report

I called to replace my old thermostat with a new touch thermostat. I was provided with a time a 2 HOUR window. Brian came in and replaced my new thermostat he was prompt and showed me how to use the new thermostat. I wanted to mention that i also have a maintenance contract which gives me a peace of mind. I dont have to worry that my equipment will fall apart
Maintenance is important to keep the and I have 2 HVAC equipments that get maintenance done. I have a maintenance contract with National Air for over 6 years. They change the belts - filters and make sure the bearings are lubricated. they

Ashley L.

Jul 10, 2019 Report

Low employee wages, breaking labor laws and a place were racism is still alive and thriving. I hope this is a company people take a closer look at before hiring for any job as here in this place you will be laid off for speaking the truth and have a knife pulled out on you from a supervisor.