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Top-Rated Central humidifier installers and replacers in Alexandria - Updated Nov 2026

Avatar for Polar Bear Air Conditioning And Heating Inc
Polar Bear Air Conditioning And Heating Inc
4.4(
237
)
Central Humidifier - Install or Replace

Serving Alexandria, VA and surrounding areas

Approved

In business since 2001

Free estimates

Warranties offered

"I called on a Friday and it was done by Wednesday. The price was significantly below others. And I know they are great: they replaced my furnace (boiler) 10 years ago. Super nice people - I highly recommend!"
Response time1 day
9 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for ARS of Virginia
ARS of Virginia
4.4(
280
)
Central Humidifier - Install or Replace

Serving Alexandria, VA and surrounding areas

Approved (Corporate)

In business since 1950

Free estimates

Emergency services offered

"Great company to work with. Estimate was done quickly and the install was scheduled within a few days. The furnace and humidifier was replaced. Very happy with the results. thanks ARS team. -gac"
Install of a new A/C system.
345 neighbors recently requested a quote
Recommended by78%of homeowners
Avatar for McCrea Heating & Air Conditioning Services of VA
McCrea Heating & Air Conditioning Services of VA
4.6(
373
)
Central Humidifier - Install or Replace

Serving Alexandria, VA and surrounding areas

Approved

In business since 1936

Free estimates

Emergency services offered

"Aside from installing a new Carrier gas furnace, they installed a state-of-the-art thermostat. The comfort specialist, Chris B., was very responsive and helpful in helping me decide what to buy, as well as providing help after installation. The two installers, Chris M. and Justin B. were very personable and very neat during removal and installation of the furnaces. Overall, very satisfied. Very commendable job."
Additional Photos
Trane Unit
Additional Photos
25 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for OHA HVAC, Plumbing, Chimney & Fireplaces
OHA HVAC, Plumbing, Chimney & Fireplaces
4.9(
27
)
Central Humidifier - Install or Replace

Serving Alexandria, VA and surrounding areas

Approved

Super Service Award Winner

In business since 1995

Free estimates

Emergency services offered

"Matt, Paul and Jonathan arrived on time ready to work. They explained what they were going to do and started by insuring our house would be protected from removal of the old system. Everything that Fred Ouellette explained during the estimate visit a month earlier was right on. after the installation they took the time to explain the new thermostat until we were comfortable with operating it. After they left, I took one more look around the house and noticed they forgot to put putty around the opening of the house were the pipes and wire entered. i thought no big deal i'll just get some and do it myself, about an hour later, Matt rang the doorbell and said he saw the putty in the truck when he got back to the office and on his way home from a long days work stopped by to finish the job. Honest hard working people."
AC Maintenance / Tune-Up
AC Maintenance / Tune-Up
AC Maintenance / Tune-Up
AC Maintenance / Tune-Up
AC Maintenance / Tune-Up

+3

Response time1 day
Response rate100%
8 neighbors recently requested a quote
Avatar for TC HVAC Services, LLC
TC HVAC Services, LLC
5.0(
20
)
Central Humidifier - Install or Replace

Serving Alexandria, VA and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"September 2019, my water heater broke and TC HVAC Services replaced it with a new water heater. And they also fixed my AC and fridge. Recently, in October 2019, TC HVAC Services installed a new humidifier in my home. Mr. Thea Chea, the specialist was professional, honest, and he answered all of my questions. The repairs and installation were completed in a timely manner. And costs were reasonable and fair. I would definitely use TC HVAC Services again and I have recommended TC HVAC Services to my family and friends. Thank you, Mr. Chea and TC HVAC Services LLC."
fully installation entire house duct with system
old outdoor
old outdoor
main trunk line the same house
old indoor

+99

Response time3 hrs
Recommended by100%of homeowners
Avatar for JDL HVAC & Plumbing Services
JDL HVAC & Plumbing Services
4.5(
120
)
Central Humidifier - Install or Replace

Serving Alexandria, VA and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"JDL replaced a defective propane furnace and did an excellent job. The new one is installed better than the original. JDL scheduled an inspection by the county inspector also said they did an excellent job. They were efficient, timely and friendly."
Navien Tankless 2023
Navien Tankless 2023
Navien Tankless 2023
Navien Tankless 2023
18 SEER Infinity Heat Pump

+73

Response time8 hrs
Response rate100%
15 neighbors recently requested a quote
Avatar for John C Flood LP.
John C Flood LP.
4.4(
63
)
Central Humidifier - Install or Replace

Serving Alexandria, VA and surrounding areas

Approved

Super Service Award Winner

In business since 1920

Free estimates

Warranties offered

"I hired JC Flood to fix my hot water heater. They popped over for a quick appointment and our hot water heater worked for a few days before dying again. JC Flood explained the hot water needed to be replaced. They were excellent about including proposals for replacement units. Very much appreciated!"
Tech Education
John C. Flood - Going to Work
John C. Flood - Teamwork
John C. Flood - Busy Morning
John C. Flood - Work Underway

+28

Response time2 hrs
48 neighbors recently requested a quote
Recommended by48%of homeowners
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Showing 1-10 of 238
FAQs for central humidifier installation and replacement projects in Alexandria, VA

A crawl space dehumidifier is a worthwhile investment, particularly in humid climates or if you've noticed musty odors, mold growth, or wood deterioration. Though costs range from $3,000 to $9,200, this investment helps prevent structural damage that could require far more expensive repairs later. Beyond structural protection, a properly dehumidified crawl space contributes to better overall indoor air quality and may reduce allergens throughout your home. Consider having a professional assessment to determine if your specific situation warrants this investment.

Addressing crawl space moisture effectively often requires a combination of solutions. A complete approach includes encapsulation plus dehumidifier installation. For minor moisture issues, a basic dehumidifier starting at $1,500 may suffice, while severe problems in larger spaces could require systems costing up to $14,000. The most effective moisture control strategy depends on your specific conditions, making a professional assessment valuable for determining the most cost-effective approach for your situation.

For a crawl space measuring 1,500 square feet, you'll need a dehumidifier with a daily capacity of 30 to 50 pints, with unit costs ranging from $150 to $600. Your local climate and existing moisture levels may necessitate adjusting this capacity—homes in particularly humid regions might benefit from higher-capacity units. Professional installers can measure your specific humidity conditions and recommend equipment that is appropriately sized, balancing initial cost with operating efficiency for your unique situation.

Crawl space dehumidifiers add $300 to $500 to your annual electricity expenses when operating continuously. Energy-efficient models reduce this consumption by roughly 15 to 30% compared to standard units. Most contemporary dehumidifiers feature humidity sensors that automatically cycle operation based on current conditions, helping manage energy usage. Proper crawl space encapsulation significantly improves efficiency by creating a controlled environment that requires less dehumidifier runtime, thereby reducing ongoing electricity costs.

The Alexandria, VA homeowners’ guide to central humidifier installations and replacements

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