
Serving Livermore, 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 Livermore, 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 Livermore, 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 Livermore, 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
Serving Livermore, CO and surrounding areas
Approved
In business since 2025
Free estimates
Offers commercial services
"Good and great quality work fixed system in a timely manner 100% recommended"


Serving Livermore, CO and surrounding areas
Approved
In business since 2023
Free estimates
Warranties offered
Northern Mechanical is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customer's interests, and make their concerns the basis of our business.

Serving Livermore, CO and surrounding areas
In business since 2016
Free estimates
Emergency services offered
"I highly recommend this company. Ruben was very easy to work with, professional, friendly, efficient and effective. I am very satisfied with my experience. Highlights- -Responded immediately (on the weekend) -Personalized his service to our needs. We live in a very old home that required work beyond simply slapping in a new furnace. He took the extra steps to ensure they whole job was done correctly, not the bare minimum. -Took the time to answer all of our questions and helped us deal with a tedious warranty situation regarding the old furnace. Several other companies flat out refused to address our warranty problems. -Cleaned up after himself, was careful not to track in dirt/mud. -Was respectful and honest in all of our interactions. He gave us the best guarantees for continued maintenance, and I believe he will follow through. -Provided the lowest of all bids. This company is doing what a lot of companies in more rural locations do not- provide competitive, high quality service. Because options are limited and there is enough demand, many companies do not have to go the extra mile to compete for customers. Elite Comfort did, and I appreciate it that effort enough to take the time to write a lengthy review."





+18

Serving Livermore, CO and surrounding areas
In business since 1934
Free estimates
Emergency services offered
"I recently got estimates from a half-dozen HVAC companies for the installation of a full ducted heat-pump system into a home that did not have it - a retrofit. Fort Collins Heating and Air Conditioning called me back within minutes of my submitting a quote request, and they came out the same morning - impressive. The guy who came out was dressed professionally and was notably friendly. However, his proposal was the only one that required two outdoor units and quite a bit of exterior hoses and wiring, which I had said I wanted to minimize. Pricing was also a problem; the estimate was, by far, the highest I received. I continued to like the estimator throughout the process, but the truth is that the quote was not competitive. This was the *Cadillac* of the companies, I spoke to: the cost of a permit was included, they guarantee in writing that you will pay only the estimated price, no matter what, and they have a final, separate quality inspection that nobody else does (or at least mentions). There is no doubt in my mind that these guys do a good job, and if that is all you care about, by all means, give them a shot."





+15
Serving Livermore, CO and surrounding areas
In business since 2000
Free estimates
Credit card accepted
"The attention to details and the professionalism was more than exceeded. I would definitely use LC Contracting again and highly recommend them."

Serving Livermore, CO and surrounding areas
In business since 2015
Free estimates
Emergency services offered
"Well we really appreciate the workmanship of the company and amazing customer service very respectful,knowledgeable and efficient"


Serving Livermore, CO and surrounding areas
In business since 2021
Free estimates
Emergency services offered
"I received excellent service from pro heating and AC. The price was excellent. The way the team presented themselves was very professional. These guys really care about their customers. Everybody needs to hire these guys. The air conditioning that they installed works very good, and I could not be happier."


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.
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