
Serving Lyons, CO and surrounding areas
Approved (Corporate)
Super Service Award Winner
In business since 1978
Free estimates
Emergency services offered
"They have service my furnace and air conditioner for years"


Serving Lyons, CO and surrounding areas
Approved (Corporate)
Super Service Award Winner
In business since 1978
Free estimates
Emergency services offered
"They have service my furnace and air conditioner for years"

Serving Lyons, CO and surrounding areas
Approved
Super Service Award Winner
In business since 2023
Free estimates
Emergency services offered
"Great experience with seasonal maintenance check. They arrived early in appointment window, checked furnace, humidifier, & air conditioning, explained everything clearly. They replaced a filter, examined every part of air conditioning system, made some recommendations, had easy payment system. I will look forward to using them again!"





+67

Serving Lyons, CO and surrounding areas
Approved
In business since 1983
Free estimates
Credit card accepted
"Great service. Here on time. Will use in the future"





Serving Lyons, CO and surrounding areas
Approved
In business since 1976
Free estimates
Emergency services offered
"We had an excellent experience with Controlling Systems from the first phone call to our install. All the professionals were prompt, friendly and hard working. We had a lot of questions throughout the process and they answered every one. The prices seem right in line with the industry and we were overall very happy with their work."




Serving Lyons, CO and surrounding areas
Approved
In business since 2017
Free estimates
Small jobs welcome
"I actually had my furnace and my air conditioner replaced. I found Brandyn, Curtis and Rob all to be very professional and informative. (It was my choice to replace both, no pressure to upsale) Furnace was pushing 30 and air was not far behind. Rob and Curtis answered all my questions and left my house and yard exactly as they found them. I was very pleased to have chosen 1st Action to handle my job. Jan H."



Serving Lyons, CO and surrounding areas
Approved
In business since 2025
Free estimates
Emergency services offered
"Loos & Sons HVAC did a stellar job diagnosing the issue with our system; the technician was incredibly knowledgeable and quickly pinpointed the root cause. We especially appreciated that they took the time to clearly educate us on the problem and walk us through all the available solutions. This commitment to transparent service and customer empowerment makes them our new go-to company, and we highly recommend them."


Serving Lyons, CO and surrounding areas
Approved
In business since 2012
Free estimates
Emergency services offered
"We have been using Plumbing Tree for all of our plumbing, air conditioning, & heating service since we found him 2 years ago. Kieth may not be the cheapest guy in town, but you get what you pay for. He knows what he's doing and makes sure it's actually fixed right. This time, I had him out to talk about a barhroom remodel I want to do, but ask him if he could replace a valve in my kitchen faucet "to make the trip worth his time". They didn't just see the faucet was leaking on top where I saw it but took time to check underneath and found leaking valves that were damaging the cupboard underneath and even a little into the flooring below. No question, the faucet needed replacement and new valves. I love my new faucet!"





+58

Serving Lyons, CO and surrounding areas
Approved (Corporate)
In business since 1947
Free estimates
Emergency services offered
"Nate was amazing! He inspected and worked on my homes air conditioning unit. He was so pleasant, friendly, knowledgeable, and informative... he took the time to explain all the work he did and recommendations on what needs to be done in a way that I could understand. He talked about the different options I had on future upgrades/replacements/repairs and their cost without any pressure on buying them NOW... I am so pleased with this experience and plan on using this company in the very near future for some of Nate's recommendations... In addition, Nate refused taking a tip ! Trustworthy & Honest with EXCELLENT CUSTOMER SERVICE SKILLS!"





+2

Serving Lyons, CO and surrounding areas
Approved
In business since 1999
Free estimates
Emergency services offered
"Installation went okay. Quoted a Bradford White heater. Installed another brand. Not sure of code upgrades were made. The guys performing the work were very polite and worked quickly."





+1

Serving Lyons, CO and surrounding areas
Approved
In business since 2006
Free estimates
Emergency services offered
"I signed up 3 years ago to the Swan Club, which includes yearly inspections of our furnace, ac, and plumbing. Mark recently inspected our air conditioning system. After purchasing an HVAC system from Swan, we joined the Swan Club, which includes yearly inspections. Yesterday our service technician was Mark. He was extremely thorough and professional, and and walked us through the whole system with pictures and comments. He could not have been more helpful. Thanks Mark"





+1
Most professional HVAC technicians require two to three hours to complete an expansion valve replacement. The timeframe depends on your unit's accessibility and whether additional repairs are needed. The process involves recovering refrigerant, removing the old valve, installing the new component, and recharging the system. Scheduling during less busy seasons may result in more convenient appointment times.
Operating your air conditioner with a malfunctioning expansion valve isn't advisable. Continuing to run the system could potentially damage other components, particularly your compressor, which is significantly more expensive to replace. If you notice performance issues like inconsistent cooling or unusual noises, it's best to have your system inspected before continuing regular use.
Expansion valves don't have a standard replacement schedule, as their longevity depends on system usage, maintenance frequency, and environmental factors. Regular professional maintenance helps identify potential valve issues before they cause system failure. Having your HVAC system serviced annually allows technicians to monitor component condition and recommend preventative replacements when necessary.
Refrigerant leaks require prompt professional attention. If your expansion valve is leaking, you'll likely notice reduced cooling performance and possibly hear hissing sounds near the unit. Addressing leaks quickly prevents further system inefficiency and avoids the environmental impact of released refrigerant. Your HVAC technician will need to repair the leak and recharge the system with the proper refrigerant type and amount.
Because many AC issues present similar symptoms, professional diagnosis is recommended. Problems like inadequate cooling, inconsistent temperatures, or strange noises could indicate expansion valve issues, but might also stem from refrigerant leaks, electrical problems, or airflow restrictions. A qualified HVAC technician has the tools and expertise to accurately identify the root cause and recommend appropriate repairs.
From average costs to expert advice, get all the answers you need to get your job done.

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