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Avatar for Allied Electric LLC
Allied Electric LLC
4.9(
49
)

Serving Congress, AZ and surrounding areas

Approved

In business since 2019

Emergency services offered

Warranties offered

"Allied Electric installed some Patio heaters for me, which also required upgrades to my electric panel. The entire process went smoothly and quickly - about a week from first engagement to job completion, and that included local permitting (which Allied managed) around the holiday weekend. Everyone I interacted with was friendly and knowledgeable, from Amber in the office, to Marioâ s inspection and quote, to Luisâ and Codyâ s installation. We are really enjoying being able to use our patio in the wintertime- Many thanks to the friendly Proâ s at Allied Electric!"
Backyard lounge
Backyard lounge
Backyard lounge
Backyard lounge
Backyard lounge

+7

Response time1 day
Response rate100%
117 neighbors recently requested a quote
Avatar for Arizona All Cleaners
Arizona All Cleaners
4.8(
202
)

Serving Congress, AZ and surrounding areas

Approved

In business since 2017

Free estimates

Warranties offered

"Very conscientious. Provides additional services other vent cleaners do not. Sanitize, clean coils on unit, cleaned bath vents and even my ceiling fan blades. Quick and efficient."
CLEAN DRYER VENT
CLEAN AIR HANDLER CIOL
BIG VACUUM
REGISTER WASHED, DRYING
OUR STAFF

+14

Response time10 hrs
Recommended by97%of homeowners
Avatar for Advanced Cleaning Technologies A-Z, LLC
Advanced Cleaning Technologies A-Z, LLC
4.6(
525
)

Serving Congress, AZ and surrounding areas

Approved

Super Service Award Winner

In business since 2007

Free estimates

Emergency services offered

"Brian, the owner of the company was fantastic and friendly. We had him clean out two dryer vents and he even came out on a Saturday with a short notice. Would absolutely recommend him! Lastly, he pulled out a lot from each vent. Definitely feel safer knowing that my dryer will work properly and that nothing can catch fire. Thank you, Brian!"
Response time3 hrs
Response rate92%
12 neighbors recently requested a quote
Dillon Eason
New to Angi

Serving Congress, AZ and surrounding areas

Approved

I’m a Phoenix-based audio/visual professional with years of hands-on experience in equipment installation, troubleshooting, and live event production. My background includes working as an A/V Technician for Encore Global, where I set up and operated microphones, speakers, projectors, large displays, and complete event systems for clients of all sizes. I specialize in clean installs, efficient problem-solving, and making sure every system works exactly as it should.\n\nCustomer service is at the core of my work. Whether I’m in someone’s home or at a large venue, I prioritize clear communication, safety, and attention to detail. CPR and First Aid certified, dependable, and responsive — I treat every project with professionalism and care.

Avatar for AC Medic Heating and Air, LLC
AC Medic Heating and Air, LLC
4.9(
58
)

Serving Congress, AZ and surrounding areas

In business since 2015

Free estimates

Emergency services offered

"The entire HVAC replacement process was easy with AC Medic Heating and Air. Bob, the owner is honest and Cory and Chris did a great job and clean up. I feel great about my purchase from AC Medic!"
Side view of new Trane!
Roof top unit
Installs
Installs
Installs

+9

Response time12 hrs
Recommended by98%of homeowners
Avatar for Trusted Heating & Cooling LLC
Trusted Heating & Cooling LLC
4.5(
109
)

Serving Congress, AZ and surrounding areas

In business since 2009

Emergency services offered

Credit card accepted

"We were very pleased with the Richard and Ben's work.  They were extremely professional and responded to all our questions and gave us some additional advise which regard to the vents and potential solutions which we ultimately implemented solving our leakage issues.  I also visited the company's site and researched other references prior to hiring Trusted.  In every case nothing but high marks were given and after our service I can see why.  Trusted will be my go-to HVAC contractor from now on.  Extremely professional.
"
Recommended by88%of homeowners
Avatar for Alltech Solutions, Inc.
Alltech Solutions, Inc.
4.3(
199
)

Serving Congress, AZ and surrounding areas

In business since 2014

Free estimates

Emergency services offered

"These guys beat the competition's prices by a mile and everyone was fantastic! I have absolutely no complaints and will definitely be recommending them to everyone I know that need HVAC help!"
AC Install
projects
projects
projects
projects

+14

Response time11 hrs
Response rate97%
Recommended by92%of homeowners
Avatar for North Alabama Technical Services
North Alabama Technical Services
4.9(
124
)

Serving Congress, AZ and surrounding areas

In business since 2010

Emergency services offered

Credit card accepted

"Great service. Jim is friendly, very knowledgable and professional. Arrived on schedule and took care of us in short order. Jim knows his stuff and we will definitely use his services again if the need arises. Reasonable priced and highly recommended.
"
2014 Super Service Award Winner!
Additional Photos
Recommended by97%of homeowners
Showing 1-10 of 38
Heating and Air Conditioning questions, answered by experts

Deciding whether to replace just the AC coil or the entire system depends on the age of your unit and the overall cost. Replacing a coil is less expensive than a full system replacement, but it can still be a pricey repair. If your HVAC system is relatively new and still under warranty, or if the replacement cost is significantly lower than a new system, replacing the coil can be a worthwhile investment that restores efficiency and extends the unit's life. However, for older systems (nearing the end of their 10-15 year lifespan) or those with extensive damage, it is often more cost-effective to replace the entire AC unit. Mismatched coils in an older system can lead to inefficiency and future breakdowns, so a full replacement ensures optimal performance and avoids further costly repairs.

Yes, having mismatched evaporator and condenser coils in your AC system can lead to serious issues. For instance, it can result in higher monthly energy costs as the system runs longer to compensate for the mismatch. This mismatch can also put extra stress on the system, compromising its efficiency and longevity. 

Along with that, mismatched coils can lead to higher temperatures and humidity levels in the home. What’s more, using coils of different sizes may violate the manufacturer's warranty, as they are designed to work synergistically, and any mismatch could lead to repairs and system failure.

A few drips here and there should not be cause for concern, but if your unit is leaking a large amount of water, then it’s advised that you stop using it until the problem is identified and a solution is determined. The more you use it during a leak, the more issues it will cause.

If there’s a freon leak in your home’s AC unit, it will cause the system to work overtime to cool the house. That issue will result in higher energy bills and it will take much longer for cool air to disperse throughout the home. If your system has a freon leak during the summer, it can make hot days miserable. That’s why it’s important to hire an HVAC professional to resolve a freon leak as quickly as possible.

Here’s how AC professionals will clean your AC coils:

  1. Unplug the AC unit or turn off the breaker to the unit in your circuit breaker box.

  2. Remove the faceplate.

  3. Spray a vacuum hose attachment or compressed air can to remove debris, dust, dirt, and grime.

  4. Use a soft-bristled fin comb to remove stubborn caked-on debris.

  5. Use the vacuum hose to suck up any extra debris.

  6. Take a coil-safe cleaning solution and spray it onto the coils. Try to choose a no-rinse solution.

  7. Let the solution sit for at least 15 minutes.

  8. Gently wipe away loosened grime and debris with a microfiber cloth.

  9. Reattach the faceplate, plug in your AC system, or turn the breaker back on.

The Congress, AZ homeowners’ guide to heating and air conditioning services

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