### Humidity in Los Angeles Homes
Los Angeles has a reputation as a dry city — and while the inland Valley communities are genuinely dry, coastal neighborhoods from Santa Monica to Culver City to Brentwood can have surprisingly high indoor humidity, particularly during the "May Gray" and "June Gloom" marine layer season when overnight temperatures drive moisture into homes. Homes near the ocean, homes with older construction and minimal vapor barriers, and homes where occupants bring in significant moisture all benefit from dedicated dehumidification that standard AC cannot fully provide.
Overview
### Why Your AC Doesn't Solve Humidity
Your air conditioner does dehumidify as a secondary function of cooling — the evaporator coil is cold enough to condense moisture from room air. But AC dehumidification only occurs when the system is running in cooling mode. On cool, cloudy coastal LA days when the temperature is 65–68°F, the AC doesn't run — but indoor humidity can still be 65–75% RH. A whole-home dehumidifier operates independently of the AC, targeting humidity control regardless of temperature.
### Whole-Home vs. Portable Dehumidifiers
A whole-home dehumidifier installs in the HVAC system (typically in the return duct or alongside the air handler) and treats the entire home simultaneously. Unlike portable dehumidifiers, it drains automatically through a condensate line, operates silently relative to portable units, and handles the full cubic footage of your home rather than one room. We install Aprilaire, Honeywell, and Santa Fe whole-home dehumidifiers.
### Health and Structural Benefits
Maintaining indoor relative humidity between 45–55% inhibits mold growth (mold requires 60%+ RH to establish), reduces dust mite populations (dust mites require 70%+ RH to thrive), prevents condensation damage on windows and exterior walls, and improves comfort at any given temperature.
Our Service Benefits
Humidity control independent of AC
Operates when the AC doesn't — during cool, cloudy coastal LA days when humidity is high but temperature doesn't call for cooling.
Whole-home coverage
Treats the entire home simultaneously, including bedrooms, through the existing duct system.
Automatic operation and drainage
Set the target humidity level and the system maintains it automatically, draining through a condensate line with no manual emptying.
Mold and dust mite prevention
Maintaining RH below 55% inhibits mold and dust mite populations — meaningful health benefit for sensitive household members.
Whole-House Dehumidifier Cost in Los Angeles
Pricing ranges for common whole-house dehumidifier services. Your actual cost depends on equipment, complexity, and home configuration. We provide an exact written estimate before any work begins.
Dehumidifier installation
$1,200–$3,500
Dehumidifier service
$125–$250
Service calls start at $125. Prices include parts and labor unless noted. Financing available on equipment installations. Learn about financing →
What Los Angeles Homeowners Say
“Called LC because our CO detector went off. Their technician found the issue and explained it clearly, provided a replacement estimate. No scare tactics.”
P
Patricia N.Pasadena, CA
“Got a 3-zone system for our craftsman home. Each room has its own temperature control and the electric bill is actually lower.”
A
Amy S.Los Feliz, CA
“Our AC stopped working during a heat wave and LC had a technician here within two hours. Fair price, no upsell. Will use again.”
M
Maria R.Sherman Oaks, CA
Book Whole-House Dehumidifier today.
Get a fast, accurate estimate from our certified local technicians right now.
We measure your home's current indoor humidity profile and assess the installation location options in your HVAC system.
02
Equipment sizing
We size the dehumidifier based on your home's square footage, construction type, and measured humidity load.
03
Installation
We install the dehumidifier in the return duct or alongside the air handler with automatic condensate drainage.
04
Setup and verification
We set the target humidity level, verify drainage operation, and confirm the system is maintaining target RH.
Customer Reviews
300+ verified reviews
5.0
Google Reviews196 reviews on Google
SM
Sharon Meoded
Los Angeles, CA
“Lior and his team installed an AC unit in my room that doesn’t have central AC and it works amazing! They were so professional and cleaned up fully after themselves. He kept me in the loop the entire process and when he came out prior to installing showed me step by step what they would be doing! Highly recommend ! Super professional”
Google Review
PW
Patricia Williams
Los Angeles, CA
“LC Heating and Air is a reliable, affordable solution for all your central air and heating needs. I am an out of town landlord and it can be difficult to find the assistance I need. LC Heating and Air took care of my tenants issues quickly and explained all issues before making necessary repairs. I will def use them again if need be!”
Google Review
NE
Naomi Eagleson
Los Angeles, CA
“I hired LC Heating & AC to replace the drain pumps in our Mitsubishi Mini Splits and clean the condenser and was pleased with the service. Leo was responsive, thorough, and professional. I chose this company based on the glowing reviews I read online and wasn't disappointed. My husband and I look forward to using our AC this summer!”
Google Review
OI
Osher Itzhaki
Los Angeles, CA
“Amazing service!! I called LC heating and air and was fortunate enough to have scheduled them for a same day appointment . Leo arrived on time and was super friendly, polite and fixed my ax in no time . The price was fair and he explained what further steps I shouted take to keep my ac unit running for more years Thank you LC!!!”
Google Review
JS
Justin Shapiro
West Hollywood, CA
“Great experience!!’ Leo came to my house in West Hollywood at 9pm !! I had an emergency, my ac stopped working out of no where i called LC heating and air from the phone call with the office to the time the tech came the service was just amazing. Leo came and had my ac running in no time. Thank you so much !! Highly recommended”
Google Review
GH
Greg Haroutunian
Los Angeles, CA
“Sunday morning discovered AC in the unit is not working, called everywhere, no one wanted to come the same day. LC Heating came the same day, fixed the problem which apparently wasn't easy to figure out. Very professional, calm and confident, pleasant to work with. Leo was the lead guy. Great experience, highly recommend it!”
Google Review
AV
Adam Valdies
Los Angeles, CA
“Leo and his team were amazing! I am so glad we called them to handle our AC/Heating issue. The problem was not clear at first and required substantial troubleshooting but Leo was extremely communicative and very professional throughout! He figured out the problem and we cannot thank him enough! Highly recommend!”
Google Review
LO
Leeyam Ohayon
Los Angeles, CA
“I called LC Heating & Air when my heating unit stopped working. He came quickly and fixed the problem fast. The technician was very kind and experienced. He explained the problem to me and gave me maintenance tips for the future. I definitely recommend LC Heating and Air if you're in need of these services.”
Google Review
AY
ariel. yona.
Los Angeles, CA
“Amazingly service me heater broke down and I was looking for a local company in my neighborhood. I found LC heating and air I can’t express in words how pleased I was with this company the owner Leo came out was very professional friendly and fixed my heater in no time !!! Highly recommended”
Google Review
KB
kevin benoit
Los Angeles, CA
“I cannot recommend this company more. They came, assess my issue and then ordered the right parts from the company and made an amazing install and transform my AC unit into a smart controlled AC unit which no Other HVAC company was able to do, or wanted to take the time that it took to do it”
Google Review
TY
Todd Yasuda
Los Angeles, CA
“Asher (LC Heating & Air) is the best, he kept me informed throughout the whole process. Everything he told me is exactly how things were done. I couldn’t have asked for a better person to work with. If you want to work with a reliable person and company, I would highly recommend him.”
Google Review
CK
claudia kleinschmidt
Los Angeles, CA
“Our AC was broken and had been dripping for a couple days. Once we called LC heating and air they sent out Asher to fix it immediately. He checked out the AC and fixed the problem on the spot. He was super professional and informative. Highly recommend Asher and the company!”
Google Review
DF
D Fan
Los Angeles, CA
“Leo is the absolute best! Had an emergency call and he came out right away in the early evening. Showed me how my units work and what the problem was. A few minutes later, it was fixed and working again! I cannot recommend this guy more highly. Call him and you'll be happy!”
Google Review
JM
Jamie Morgan
Los Angeles, CA
“LC Heating and AC is the best! I couldn’t recommend enough. It was a 100/10 experience. Helped me get to the bottom of repairing my AC that was very complicated and messed up by someone else. They are very professional and kind on top be being super knowledgeable.”
Google Review
DA
dan amiel
Los Angeles, CA
“Great service my heater stopped working out of the blue and we just had a new born I called lc heating and air they were the only ones that answered they came out and a hour my heater was up and running I couldn’t thank them enough . Highly recommended”
Google Review
YG
Yane G.
Los Angeles, CA
“Very helpful and very respectful. I called for a repair and was answered immediately, they were great in explaining what was going wrong and how they would fix it i was glad with there work and would definitely be calling them for any future repairs.”
Google Review
LA
Leetal Adelle Cohen
Los Angeles, CA
“We reached out to Leo and had a new HVAC system installed by him and his crew. Very happy with the results! Very professional, knowledgeable and patient. The whole process was very smooth, quick and clean. System works perfectly. Highly recommend”
Google Review
AM
Agam Mashiah
Los Angeles, CA
“I called lc heating to fix my heater in my house . We decided to replace the heater throughout the whole out process the customer service was great they were very communicative, professional and were very clean . Thank you again for the great job”
Google Review
CR
Charles Raffini
Los Angeles, CA
“HVAC system was leaking in the attic. Leo took my call late at night and came immediately. He stopped the leak and came back to make sure the system was working properly. Very responsive, good work and great value. Highly recommend them.”
Google Review
YY
yoav yerushalmi
Los Angeles, CA
“Scheduled an appointment very quickly for our HVAC unit that was having trouble cooling. Were very meticulous and clean. Helped idenitfy the issue and did a great job explaining what needs to be done and doing it. Highly recommended...”
Google Review
SM
Sharon Meoded
Los Angeles, CA
“Lior and his team installed an AC unit in my room that doesn’t have central AC and it works amazing! They were so professional and cleaned up fully after themselves. He kept me in the loop the entire process and when he came out prior to installing showed me step by step what they would be doing! Highly recommend ! Super professional”
Google Review
PW
Patricia Williams
Los Angeles, CA
“LC Heating and Air is a reliable, affordable solution for all your central air and heating needs. I am an out of town landlord and it can be difficult to find the assistance I need. LC Heating and Air took care of my tenants issues quickly and explained all issues before making necessary repairs. I will def use them again if need be!”
Google Review
NE
Naomi Eagleson
Los Angeles, CA
“I hired LC Heating & AC to replace the drain pumps in our Mitsubishi Mini Splits and clean the condenser and was pleased with the service. Leo was responsive, thorough, and professional. I chose this company based on the glowing reviews I read online and wasn't disappointed. My husband and I look forward to using our AC this summer!”
Google Review
OI
Osher Itzhaki
Los Angeles, CA
“Amazing service!! I called LC heating and air and was fortunate enough to have scheduled them for a same day appointment . Leo arrived on time and was super friendly, polite and fixed my ax in no time . The price was fair and he explained what further steps I shouted take to keep my ac unit running for more years Thank you LC!!!”
Google Review
JS
Justin Shapiro
West Hollywood, CA
“Great experience!!’ Leo came to my house in West Hollywood at 9pm !! I had an emergency, my ac stopped working out of no where i called LC heating and air from the phone call with the office to the time the tech came the service was just amazing. Leo came and had my ac running in no time. Thank you so much !! Highly recommended”
Google Review
GH
Greg Haroutunian
Los Angeles, CA
“Sunday morning discovered AC in the unit is not working, called everywhere, no one wanted to come the same day. LC Heating came the same day, fixed the problem which apparently wasn't easy to figure out. Very professional, calm and confident, pleasant to work with. Leo was the lead guy. Great experience, highly recommend it!”
Google Review
AV
Adam Valdies
Los Angeles, CA
“Leo and his team were amazing! I am so glad we called them to handle our AC/Heating issue. The problem was not clear at first and required substantial troubleshooting but Leo was extremely communicative and very professional throughout! He figured out the problem and we cannot thank him enough! Highly recommend!”
Google Review
LO
Leeyam Ohayon
Los Angeles, CA
“I called LC Heating & Air when my heating unit stopped working. He came quickly and fixed the problem fast. The technician was very kind and experienced. He explained the problem to me and gave me maintenance tips for the future. I definitely recommend LC Heating and Air if you're in need of these services.”
Google Review
AY
ariel. yona.
Los Angeles, CA
“Amazingly service me heater broke down and I was looking for a local company in my neighborhood. I found LC heating and air I can’t express in words how pleased I was with this company the owner Leo came out was very professional friendly and fixed my heater in no time !!! Highly recommended”
Google Review
KB
kevin benoit
Los Angeles, CA
“I cannot recommend this company more. They came, assess my issue and then ordered the right parts from the company and made an amazing install and transform my AC unit into a smart controlled AC unit which no Other HVAC company was able to do, or wanted to take the time that it took to do it”
Google Review
TY
Todd Yasuda
Los Angeles, CA
“Asher (LC Heating & Air) is the best, he kept me informed throughout the whole process. Everything he told me is exactly how things were done. I couldn’t have asked for a better person to work with. If you want to work with a reliable person and company, I would highly recommend him.”
Google Review
CK
claudia kleinschmidt
Los Angeles, CA
“Our AC was broken and had been dripping for a couple days. Once we called LC heating and air they sent out Asher to fix it immediately. He checked out the AC and fixed the problem on the spot. He was super professional and informative. Highly recommend Asher and the company!”
Google Review
DF
D Fan
Los Angeles, CA
“Leo is the absolute best! Had an emergency call and he came out right away in the early evening. Showed me how my units work and what the problem was. A few minutes later, it was fixed and working again! I cannot recommend this guy more highly. Call him and you'll be happy!”
Google Review
JM
Jamie Morgan
Los Angeles, CA
“LC Heating and AC is the best! I couldn’t recommend enough. It was a 100/10 experience. Helped me get to the bottom of repairing my AC that was very complicated and messed up by someone else. They are very professional and kind on top be being super knowledgeable.”
Google Review
DA
dan amiel
Los Angeles, CA
“Great service my heater stopped working out of the blue and we just had a new born I called lc heating and air they were the only ones that answered they came out and a hour my heater was up and running I couldn’t thank them enough . Highly recommended”
Google Review
YG
Yane G.
Los Angeles, CA
“Very helpful and very respectful. I called for a repair and was answered immediately, they were great in explaining what was going wrong and how they would fix it i was glad with there work and would definitely be calling them for any future repairs.”
Google Review
LA
Leetal Adelle Cohen
Los Angeles, CA
“We reached out to Leo and had a new HVAC system installed by him and his crew. Very happy with the results! Very professional, knowledgeable and patient. The whole process was very smooth, quick and clean. System works perfectly. Highly recommend”
Google Review
AM
Agam Mashiah
Los Angeles, CA
“I called lc heating to fix my heater in my house . We decided to replace the heater throughout the whole out process the customer service was great they were very communicative, professional and were very clean . Thank you again for the great job”
Google Review
CR
Charles Raffini
Los Angeles, CA
“HVAC system was leaking in the attic. Leo took my call late at night and came immediately. He stopped the leak and came back to make sure the system was working properly. Very responsive, good work and great value. Highly recommend them.”
Google Review
YY
yoav yerushalmi
Los Angeles, CA
“Scheduled an appointment very quickly for our HVAC unit that was having trouble cooling. Were very meticulous and clean. Helped idenitfy the issue and did a great job explaining what needs to be done and doing it. Highly recommended...”
Common questions about whole-house dehumidifier in Los Angeles
Does Los Angeles really need dehumidification?
In many parts of LA, no — the inland Valley communities are dry enough that dehumidification isn't needed. But coastal neighborhoods (Santa Monica, Venice, Culver City, Brentwood, Pacific Palisades) experience regular high-humidity periods during the marine layer season. Homes with slab foundations and limited ventilation, and homes with high occupancy, can develop humidity problems even in areas not typically considered humid.
What is the ideal indoor humidity level?
ASHRAE recommends maintaining indoor relative humidity between 30–60%, with 45–55% being the comfort sweet spot. Below 30% RH, static electricity and respiratory dryness become issues. Above 60% RH, mold and dust mite conditions are favorable. A whole-home dehumidifier is set to maintain your target RH — typically 50% for most LA homes.
How much does a whole-home dehumidifier cost in Los Angeles?
Whole-home dehumidifier installation runs $1,200–$2,500 depending on the unit capacity (measured in pints per day), installation location, and condensate drain routing. Aprilaire and Santa Fe units for a typical single-family home are in the $1,400–$2,000 installed range. We provide a written estimate after assessing your home.
Can a whole-home dehumidifier be added to any HVAC system?
Yes, in most cases. Whole-home dehumidifiers install in the return duct or alongside the air handler and don't require integration with the HVAC control system (though some models offer integration for better coordination). The main requirement is a suitable installation location and a path for condensate drainage.
Does a whole-home dehumidifier use a lot of electricity?
Less than you might expect relative to the portable alternatives. A properly sized whole-home unit running a few hours per day during humid periods uses 3–7 kWh per day. Compare this to running multiple portable dehumidifiers throughout the home. At LA electricity rates, the cost is typically $15–$35 per month during high-humidity periods.
How often does a whole-home dehumidifier need maintenance?
Annual filter cleaning or replacement, and an annual inspection of the condensate drainage system. Some units have replaceable filter media; others have washable filters. We include dehumidifier inspection in our annual maintenance visits for homes that have them.
My AC already dehumidifies. Why do I need a separate unit?
Your AC dehumidifies only when it's running in cooling mode. On cool, overcast coastal LA days — common from May through July — your AC doesn't run, but indoor humidity can be 65–75% RH. A dedicated dehumidifier operates independently of cooling demand, maintaining target humidity year-round regardless of temperature. It fills the gap your AC can't address.
What brands of whole-home dehumidifiers do you install?
We install Aprilaire, Honeywell, and Santa Fe whole-home dehumidifiers. These are the leading residential brands offering reliable performance, good warranty support, and available replacement filters throughout the product lifespan. We recommend specific models based on your home's square footage and measured humidity load.
Verified Reviews
What customers say about whole-house dehumidifier
Verified reviews from Los Angeles homeowners who used our whole-house dehumidifier service.
“LC installed a whole-house dehumidifier in our South Pasadena home. We had issues with condensation and mildew smell every summer. The unit has eliminated the problem and our air feels completely different inside.”
V
Victoria L.
South Pasadena, CA · Jun 2025
“Our AC stopped working during a heat wave and LC had a technician here within two hours. He diagnosed a bad capacitor, had the part on his truck, and fixed it on the spot. Fair price, no upsell. Will use again.”
M
Maria R.
Sherman Oaks, CA · Aug 2025
“LC replaced our entire HVAC system — new Carrier condenser, furnace, and coil. Leo walked us through every option without pressure. The install team was professional and clean. System runs perfectly and our electricity bill dropped about 30%.”