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

Avatar for Hecomo
Hecomo
5.0(
11
)
Central Humidifier - Install or Replace

Serving Gaithersburg, MD and surrounding areas

Approved

Credit card accepted

Customers say: True professional

"From not having a water supply for my whole home bypass humidifier, to having a repaired, new water supply line and instant winter comfort. All in less than two hours. Thanks Edmond and team for getting me taken care of right after I arrived home from work. Wealth of knowledge, too, about HVACs warranties, and other good general advice for first-time homeowners like myself! Glad to have signed-up tonight as a member - eligible for discounts tonight and future maintenance services. Highly recommend!"
Heating & A/C Project
Heating & A/C Project
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+8

Response time8 hrs
Response rate100%
8 neighbors recently requested a quote
Avatar for BlueStar Air Mechanical Inc.
BlueStar Air Mechanical Inc.
4.9(
32
)
Central Humidifier - Install or Replace

Serving Gaithersburg, MD and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"I contacted Bluestar Air Mechanical for a second opinion after an appointment with Air One. I have a Carrier HVAC system, and the Air One technician recommended a complete system replacement, claiming the blower was bad, the furnace control board needed replacing, and that there were other issues. Since replacing the HVAC is a big investment, I wanted to get a second opinion. It was only after comparing the service from Bluestar that I realized Air One may have been pushing for a new system sale or lacked the expertise to properly diagnose and repair the actual problems. Isaac, the technician from Bluestar, spent about an hour thoroughly diagnosing and fixing the issues. He found burnt wiring in the furnace and discovered that the wrong capacitor had been incorrectly installed in the AC. Isaac replaced the burnt wiring in the furnace and the capacitor in the AC. After these repairs, my Carrier system was back up and running—without the need for a costly replacement. Bluestar, and Isaac in particular, demonstrated professionalism, expertise, and honesty. They focused on resolving the actual issues instead of pushing for an unnecessary system replacement. I highly recommend Bluestar for their reliable service and Isaac’s thorough and knowledgeable work."
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+13

Response time3 hrs
Response rate100%
6 neighbors recently requested a quote
Avatar for Petro Home Services
Petro Home Services
4.4(
1,786
)
Central Humidifier - Install or Replace

Serving Gaithersburg, MD and surrounding areas

Approved (Corporate)

In business since 1903

Emergency services offered

Warranties offered

"It went very well. They did a good job. The cost was over $400. I don't know whether or not that's too high or not. I seldom have plumbers in so I can't say the cost was high, although I was surprised it was $400, but that could be the going rate. He seemed very agreeable and very happy. I needed something and he was happy to get it. He was very knowledgeable and helpful in that regard. As for the quality of their service, so far so good. Everything went okay. It stopped leaking."
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Response time6 days
Response rate100%
18 neighbors recently requested a quote
Avatar for Buric Heating and Air Conditioning
Buric Heating and Air Conditioning
4.7(
20
)
Central Humidifier - Install or Replace

Serving Gaithersburg, MD and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"Everything went great. My AC died and it was close to 20 years old so I wanted the whole unit replaced. I have 4 young kids so no AC in the summer was not a pleasant option. The owner came out on site the day we called and was able to have the new unit installed the next day. I have dealt with many HVAC companies in the past as an Insurance Adjuster. These guys exceeded my expectations and were very reasonable on price. I highly recommend using Buric Heating and Air Conditioning!"
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+7

Response time8 hrs
15 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for HVAC Superior Solutions Inc
HVAC Superior Solutions Inc
5.0(
6
)
Central Humidifier - Install or Replace

Serving Gaithersburg, MD and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

FULL HVAC REPAIR AND REPLACEMENT- ALL HVAC MAKES AND MODELS OF EQUIPMENT. Professional HVAC technicians in the DC-MD-V area. Knowledge, Tools and Skills at your service. HVAC Superior knows how much you and your family depends on your A/C and Heat service system, so we make sure it continuously provide an excellent performance.

7 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Horizon Services, LLC (MD)
Horizon Services, LLC (MD)
3.8(
1,465
)
Central Humidifier - Install or Replace

Serving Gaithersburg, MD and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"I shopped around and received quotes from this company and 3 others for installation of a new HVAC for my condo. Horizon had a fair price and the customer service and installation was worth it. The technicians and consultants were all professional and got the job done in a timely manner. Would hire again and highly recommend to others. Thank you Shawn, Michael, James, and Butch!"
Horizon Services Heating and Cooling
Horizon Services Heating and Cooling
Horizon Services Heating and Cooling
Horizon Services Heating and Cooling
Horizon Services Heating and Cooling

+27

12 neighbors recently requested a quote
Recommended by89%of homeowners
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FAQs for central humidifier installation and replacement projects in Gaithersburg, MD

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 Gaithersburg, MD 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.