Top-rated air conditioning pros.

Get matched with top air conditioning pros in Portland, CT

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Air conditioning pros in Portland

Avatar for Advanced Mechanical Services LLC
Advanced Mechanical Services LLC
4.8(
19
)

Serving Portland, CT and surrounding areas

Approved

In business since 2001

Free estimates

Emergency services offered

"So many choices when your looking for a company to service your heating and air conditioning needs. When we reached out on social media for suggestions for a reputable and reliable company so many people highly recommended Advanced Mechanical Services that we wondered if it was for real. Well now you can count us among the believers. From the moment Deena took our phone call till Rob and Ian arrived at our home and completed the work on-site, these incredibly talented and professional people did their job on time, as promised, with courtesy and knowledge and quickly identified and fixed both our heating and air conditioning issues that three other companies that we paid big money to in the past could not figure out. Their reasonable bill for quality work was another surprise. And they were COVID compliant and respectful with masks AND gloves which made us feel comfortable (as senior citizens) having them come into our home to do work."
Response time1 day
9 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for MULL BROTHERS INC
MULL BROTHERS INC
4.7(
118
)

Serving Portland, CT and surrounding areas

Approved

In business since 1945

Free estimates

Emergency services offered

"I called first thing in the morning on June 30th, as I had been without hot water since the previous Friday night. (Good thing it wasn't winter!) They not only came out within an hour, they secured a new unit and installed it the same day! That included emptying the old unit, removing it and installing the new one. The job was done by mid-afternoon.
They gave me a quote over the phone, and billed me the same amount. I was very pleased.
Last summer they installed a new central air unit for me, did a great job then as well. I just hope the furnace isn't going to go next! But if it does, I will know who to call.
"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Response time2 days
5 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Omni Mechanical Services, LLC
Omni Mechanical Services, LLC
4.3(
15
)

Serving Portland, CT and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Excellent. Very good people. Everything they said about the unit was absolutely true. Very clean install. The estimate of the dollars was right."
Response time2 days
5 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Parker Mechanical Heating and Cooling
Parker Mechanical Heating and Cooling
4.7(
15
)

Serving Portland, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"Jeremy, the owner of Parker Home Services quickly - within hours - returned our request for service. He showed up early for the quote appointment. There was no BS. His quote was thorough and accurate. Jeremy removed and replaced the central AC units in a day and a half. His attention to detail is superb. Once the job was done, he brought me over to make sure that the AC worked as intended. While checking vents we noticed that some were not supplying air. Jeremy went back up in the attic and located three supply ducts that had been removed (by previous workers) from their registers and he reinstalled them. He also found a separate supply duct that had a board laying across it, constricting air flow. All of this was above and beyond what the initial job called for and shows that Jeremy takes great pride in his workmanship and making sure his customer is satisfied. We will have them back. Thank you PHS!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+30

Response time3 days
18 neighbors recently requested a quote
Recommended by71%of homeowners
Avatar for The Builders & Cleaners
The Builders & Cleaners
4.9(
119
)

Serving Portland, CT and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"i desperately needed gutter cleaning the day before a major storm. I spoke with Dave initially and he worked with me to make it possible and sent out his crew by the afternoon to my house. His crew was so professional and worked very hard to make sure that all the work was done for me and they cleaned up and got rid of all the mess. This company could not have been nicer and helpful. I highly recommend them and am thankful that I found their business."
Dust out from the ductwork
Dust out from the ductwork
Clean vent
Clean vent
Dust in the return

+1800

Response time1 day
Response rate92%
Recommended by88%of homeowners
Avatar for Cromwell Energy, Inc.
Cromwell Energy, Inc.
4.4(
8
)

Serving Portland, CT and surrounding areas

Approved

In business since 1985

Free estimates

Emergency services offered

"Weâ ve been quite pleased with our furnace and air conditioning unit. We required a service call this week. We were treated courteously and promptly. Eric was our service provide and he was very thorough and efficient. He did the job quickly and explained the project to me in easy to understand terms for this non mechanically minded person.ð"
New boiler install
Response time2 days
Recommended by100%of homeowners
Avatar for HARP Home Services, LLC
HARP Home Services, LLC
3.6(
102
)

Serving Portland, CT and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"Friendly, professional and knowledgeable. Provided prompt and reliable service, installing new furnace, ac condenser and thermostat."
Multiple Solutions For Your Home
Available When You Need Us
Cleaner Than We Found It
Only The Best Technicians
Professional Maintenance

+29

Response time4 hrs
148 neighbors recently requested a quote
Recommended by74%of homeowners
...
Showing 1-10 of 187

FAQs for air conditioning projects in Portland, CT

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.

The Portland, CT homeowners’ guide to air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.