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TRUSTED BY SIMI VALLEY, CA HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon560
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Simi Valley

Avatar for AC Dave Heating & Air
AC Dave Heating & Air
4.9(
93
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - Install+47 more

Serving Simi Valley, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Free estimates

Emergency services offered

"We noticed a foul smell coming from one of the vents in our HVAC system. We turned the system off and called AC Dave. Dave sent Justin and James to troubleshoot the problem. They quickly found a tear in one of our ducts--and the remains of a dead rodent. They cut open the duct, cleaned it and resealed it. We had heat again, about an hour after they arrived. Very fast and competent service."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+6

Response time7 hrs
Response rate100%
7 neighbors recently requested a quote
Efficiency Air, Inc.
4.8(
321
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallHeat Pump - Install or Replace

Serving Simi Valley, CA and surrounding areas

Approved

Super Service Award Winner

In business since 1985

Free estimates

Credit card accepted

"Worked with Tim - was looking for new HVAC system. He was honest and provided the best price for what you got (literally thousands of dollars cheaper from other options I was finding). Was very communicative and easy to work with. He made sure to educate you on the ins-and-outs of HVAC systems, and did not try to upsell you like other companies might do. He and Efficiency Air definitely got me as a new continued client."
A/C Condensers
A/C Condensers
A/C Condensers
A/C Condensers
Canoga Park, Goodman A/C

+50

Response time7 hrs
74 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Belle Air Services
Belle Air Services
4.7(
70
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallCentral A/C - Service or Repair+21 more

Serving Simi Valley, CA and surrounding areas

Approved

In business since 2018

Free estimates

Warranties offered

"I highly recommend Belle Air Services! From the first moment I called to get a quote, to the moment they finished the job, I could not have asked for better customer service, top notch work, and competitive pricing. They communicated with me all throughout the process, made sure I understood everything that would be done, were on time, protected my home and were clean. They even worked very well with my HOA (who is very tough!). And to top it off, they didn't try to up-sell me as other HVAC contractors have in the past. So pleased that I have found this HVAC company!!"
VRV - Multizone Comfort
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+9

Response time1 day
Response rate100%
3 neighbors recently requested a quote
Avatar for RR Electric Heating & Air
RR Electric Heating & Air
4.7(
63
)
Central A/C - InstallCentral A/C - Service or RepairCentral Air Cleaner - Repair or Service+9 more

Serving Simi Valley, CA and surrounding areas

Approved

In business since 1994

Warranties offered

Credit card accepted

"Had a new HVAC unit installed at my rental home. Was walked through the bid process and the work was done very quickly. Appreciate the customer service I received. Everyone was professional and answered my quetions."
Air ducts
Outdoor Condenser
Response time30 mins
Response rate100%
2 neighbors recently requested a quote
Avatar for Help-Me HVAC LLC
Help-Me HVAC LLC
5.0(
27
)
Electric Furnace / Forced Air Heating System - RepairCentral A/C - Service or RepairGas Furnace / Forced Air Heating System - Repair+2 more

Serving Simi Valley, CA and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"Haroon was amazing, showed up in less than an hour on a Saturday, immediately found the issue in my HVAC system and explained it, had the part needed and gave me some pointers for the future. He was quick, professional, and very reasonably priced. Will definitely hire him again if the need arises."
My jobs
My jobs
My jobs
1 neighbors recently requested a quote
Avatar for Highland Air LLC
Highland Air LLC
4.9(
111
)
Central A/C - Service or RepairGas Furnace / Forced Air Heating System - RepairGas Furnace / Forced Air Heating System - Repair - For Business+4 more

Serving Simi Valley, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Emergency services offered

"Highland Air did a great job servicing my furnace and HVAC systems. Shai showed up on time, figured out the issue quickly, and really knows his stuff. Everything was handled smoothly, and I appreciated how efficient and straightforward he was. Definitely recommend him if you need reliable HVAC work."
Condenser
Indoor unit
Before
During
After

+95

Response time4 hrs
Response rate89%
9 neighbors recently requested a quote
Avatar for Just Be Cool Supply, LLC
Just Be Cool Supply, LLC
4.9(
43
)
Central A/C - Service or RepairAir Ducts & Vents - CleanCentral Air Cleaner - Repair or Service+6 more

Serving Simi Valley, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Emergency services offered

"Joel responded right away and got to our property shortly after. He clearly explained what was going on with our HVAC heater, along with pictures of the problem, and went and got parts and completed the job all in time for us to have heat into during the cold night. Great job!"
New installation
New installation
HVAC installation
New Ac
New Ac

+11

Response time6 hrs
Response rate97%
7 neighbors recently requested a quote
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Heating and Air Conditioning questions, answered by experts

Water buildup in your HVAC system is a cause for alarm. If water accumulates in your ductwork, it can drastically lower your home's air quality and create safety hazards. These risks include mold growth, damage to your HVAC system, and attracting pests that are seeking water into your ducts. Proper insulation and sealing of ducts can prevent this, and regular inspection and maintenance can address water damage problems before they become too severe.

Fixing a leak in an AC unit costs $200 to $1,600, depending on the type of leak and any related damage. But depending on the age and condition of your AC, it might make more sense to replace the AC unit instead of repairing it. If your AC is only a few years old and relatively problem-free, then repairing it is the right call. But if it’s nearing a decade old and has other issues, consider replacing it.

While an air conditioner can temporarily run with a dirty filter, it is not recommended as it will not work efficiently. A dirty filter forces the system to work harder to circulate cool air, leading to reduced airflow, increased wear and tear, and higher energy bills. This added strain can cause the air conditioner to overheat or fail prematurely. Furthermore, a clogged filter may allow dust and dirt to accumulate in your ductwork, negatively impacting air quality. It is more cost-effective to clean or replace filters regularly than to pay higher utility bills and risk needing to replace the entire AC unit.

The best time of year to purchase or replace an HVAC system, including components like an air conditioner or furnace, is during the off-season—spring and fall. During these periods, HVAC professionals are less busy than in summer and winter, when extreme temperatures create urgent demand. Shopping during the off-season can lead to savings of 10% to 15% on an AC unit and allows you more time to find the best deal and other cost-saving incentives. Typically, air conditioning units go on sale in the fall after demand drops, while furnace prices tend to decrease in the spring.

The size window AC you need depends on the BTU and the size of the room you’re cooling. For a room with 8-foot ceilings, look for about 20 BTU per square foot of the room. For example, a 12-by-12-foot room should have an air conditioner with 2,880 BTU. You can buy something slightly more powerful, but don’t overshoot the BTU for a small room, or you’ll waste energy and have higher bills.

The Simi Valley, CA 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.