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HVAC Contractor
Chehalis, WA and the Surrounding Area
Free Estimates Within 24 Hours
Two-Year Mitsubishi Warranty
Over 30 Years of Experience
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Complete HVAC Solutions For Maximum Comfort and Convenience
Advanced Energy Systems delivers full-service heating and air conditioning throughout Lewis County, backed by more than 30 years in the industry. Our family-owned business services all makes and models, guaranteeing that every installation, repair, and maintenance job meets strict industry standards.
Our business is proud to be a member of the Sheet Metal Workers Local Union 66 of Western Washington, reflecting our commitment to skilled craftsmanship. Our team maintains continuing education to advance their expertise through ongoing training for Mitsubishi and other manufacturers.
We stand behind our work with strong warranties and customer protections, including a two-year warranty as Mitsubishi Preferred Diamond Contractors. We honor all manufacturer warranties and work directly with insurance providers to make repairs to your system as smoothly as possible. We will also match other HVAC contractors' written estimates.
We recognize that comfortable indoor environments are crucial, which is why we immediately respond to emergency requests. We will also provide free estimates in a timely manner. Need HVAC service?
Contact us for a professional
HVAC contractor in Chehalis, WA!

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Why Choose Us
In Business With Over 30 Years of Experience
Very Responsive
We Serve All HVAC Makes and Models
Comprehensive Warranties Available
We Match Written Estimates
We Work With Insurance Companies

AC Services

Commercial HVAC

Heating Services
Here's what our satisfied customers are saying...
At Advanced Energy Systems, we take pride in providing exceptional AC, heating, and commercial HVAC services to our customers. We would be grateful if you could share your thoughts about our business with others. Your feedback helps us improve and helps others make informed decisions. Please take a moment to leave a review of Advanced Energy Systems and let others know what you think.
Frequently Asked Questions
What services does an HVAC contractor provide?
An HVAC contractor handles the installation, repair, and maintenance of heating, ventilation, and air conditioning systems. This includes furnaces, air conditioners, heat pumps, and ductwork. They also help improve indoor air quality and system efficiency. Working with an HVAC contractor in Chehalis, WA allows homeowners to keep their systems running reliably throughout the year. Whether you need a quick repair or a full system upgrade, a professional contractor can recommend solutions that match your home's size, comfort needs, and energy goals.
How often should HVAC systems be serviced?
Most HVAC systems should be serviced at least once a year, though twice a year is often recommended for optimal performance. Spring is ideal for air conditioning maintenance, while fall is best for heating systems. Regular service helps prevent breakdowns, improves efficiency, and extends the life of your equipment. A professional technician can clean components, check refrigerant levels, and inspect for wear. Staying consistent with maintenance helps ensure your system performs well during peak seasons when you need it most.
What are the signs my HVAC system needs repair?
Common signs include unusual noises, uneven temperatures, weak airflow, higher energy bills, or frequent cycling on and off. You may also notice strange odors or humidity issues inside your home. These symptoms often indicate underlying problems that should be addressed quickly. An HVAC contractor in Chehalis, WA can diagnose the issue and recommend the appropriate repair. Ignoring these warning signs can lead to more serious damage, so early attention can help reduce costs and prevent system failure.
How long do HVAC systems typically last?
The lifespan of an HVAC system depends on the type of equipment, how often it is used, and how well it is maintained. On average, air conditioners last 10 to 15 years, while furnaces may last 15 to 20 years. Heat pumps typically fall within a similar range. Regular maintenance plays a key role in extending system life. If your system is nearing the end of its lifespan, upgrading to a newer model can improve efficiency and overall comfort in your home.
Can a new HVAC system lower my energy bills?
Yes, installing a new HVAC system can significantly reduce energy costs, especially if your current system is outdated or inefficient. Modern systems are designed to use less energy while delivering better performance. Features such as programmable thermostats and variable-speed motors help optimize usage. An HVAC contractor in Chehalis, WA can assess your home and recommend energy-efficient options that match your needs. Over time, the savings on utility bills can help offset the initial investment.
What size HVAC system do I need for my home?
The correct system size depends on factors such as square footage, insulation, window placement, and local climate. A system that is too large or too small can lead to inefficiency and discomfort. Proper sizing requires a professional load calculation. An HVAC contractor in Chehalis, WA can evaluate your home and determine the right system for consistent heating and cooling. This ensures better performance, lower energy use, and improved indoor comfort throughout the year.
Why is indoor air quality important?
Indoor air quality affects comfort, health, and overall well-being. Poor air quality can lead to allergies, respiratory issues, and unpleasant odors. Dust, pollen, mold, and other pollutants can build up inside the home over time. HVAC systems play a major role in filtering and circulating air. Adding air purifiers, humidifiers, or upgraded filters can improve air quality. Regular maintenance also helps keep the system clean and functioning properly, reducing airborne contaminants.
What should I do if my HVAC system stops working?
If your HVAC system stops working, first check your thermostat settings, circuit breaker, and air filter. Sometimes simple issues can cause system shutdowns. If the problem continues, it is best to contact a professional technician. Attempting complex repairs without proper knowledge can cause further damage. A licensed contractor can quickly identify the issue and restore operation. Prompt service helps prevent discomfort and protects your system from additional strain or failure.
When should I consider replacing my HVAC system?
You should consider replacement if your system requires frequent repairs, struggles to maintain consistent temperatures, or causes rising energy bills. Older systems may also lack efficiency compared to newer models. If repairs become more expensive than the value of the system, replacement is often the better choice. A professional contractor can evaluate your current system and help you decide whether repair or replacement is the most practical option based on your needs and budget.
How can I improve the efficiency of my current HVAC system?
Improving HVAC efficiency starts with regular maintenance, including changing air filters, cleaning components, and scheduling professional inspections. Sealing ductwork, upgrading insulation, and using a programmable thermostat can also make a noticeable difference. Small adjustments, like keeping vents unobstructed and maintaining consistent temperature settings, can help reduce strain on the system. An HVAC contractor in Chehalis, WA can evaluate your system and recommend targeted improvements. These steps can lower energy usage, extend equipment life, and create a more comfortable indoor environment throughout the year.


