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

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

Serving Rockville, 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
Additional Photos
Additional Photos
Additional Photos

+8

Response time8 hrs
Response rate100%
11 neighbors recently requested a quote
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 Rockville, MD and surrounding areas

Approved

In business since 1936

Free estimates

Emergency services offered

"McCrea replaced a 20 year old HVAC system with a new Trane 4-ton XL16i condenser, XV80 furnace and new coils. The salesman, Mark, was very responsive to my request for quote changes or additional items, including financing options. He was very knowledgeable and patient through the entire process as I worked with other companies for competing quotes. As a result of Mark’s recommendations and excellent pricing, I added on a new Aprilaire 1210 filter box (including replacing a portion of the return duct work/box) and an Aprilaire 600M whole house humidifier. I was able to schedule install four days after signing the contract. The installers, Charles and Christian, arrived on time and removed the old and installed the new in about 7 hours. They provided an overview of system operation and cleaned up so well, you couldn’t tell that a significant installation had occurred. I would recommend McCrea, especially Mark, Charles, and Christian to anyone...they were professional and did an excellent job. My home is so much more comfortable with a system that will be better on the summer and winter utility bills."
Additional Photos
Trane Unit
Additional Photos
25 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for JDL HVAC & Plumbing Services
JDL HVAC & Plumbing Services
4.5(
951
)
Central Humidifier - Install or Replace

Serving Rockville, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Emergency services offered

"Joe was the first to call shortly after I submitted my request for service. He had the tech out that morning who confirmed what I thought was the issue - the AC needed replacement. Since both the furnace & AC were original, I asked for an estimate to replace both. Joe's estimate was very fair given I had an estimate earlier in the year for just the AC. Because I am in a condo, choices were limited on both the AC unit and the furnance (because of size and space limitations). But Joe found a good combination of products and the install team came out on a SUNDAY! The job was not an easy one and I appreciated the team's tenacity in completing the installation. So far, everything is working well. One thing to be aware of: while the company offers an interest free payment plan, that plan is based on a higher cost (essentially I took it to mean the interest was built into the payoff period) so I chose to go with the original estimate."
NEW INSTALL
CLEANING COILS
CLEANING COILS
 CLEANING COILS
 CLEANING COILS

+118

Response time5 hrs
224 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Petro Home Services
Petro Home Services
4.4(
1,600
)
Central Humidifier - Install or Replace

Serving Rockville, MD and surrounding areas

Approved (Corporate)

In business since 1903

Emergency services offered

Warranties offered

"It was a superb experience. From the visit by Bruce the sales representative to the installation day to the follow-up from Petro, every single person we interacted with was helpful and professional. When Bruce arrived to do the assessment, we spent time going over the heating needs in the house. After a thorough inspection and measurement of the house, we sat down. He showed me a few options, all of which were going to provide good service. I ordered a unit at the end of that meeting. The installation day was just terrific- the entire work crew that showed up were everything I would hope to find: Upbeat, informative, hard-working, focused. The job was finished before end of day as promised. The heater room is now immaculate, with new piping and a new heater. It was like watching a pit crew at a NASCAR race. Everyone had their tasks, they moved carefully but quickly. The materials were all laid out in order, etc. Just a totally professional approach to their work. The crew boss answered any questions I had. The follow-up for a normal inspection of the furnace chimney was scheduled the day after the installation. I’ve gotten calls to insure we are satisfied with the work. Satisfied barely covers it- I am pleased to write this kind of review. Without hesitation I will recommend Petro to friends and family throughout the Philly area. Peter A. Elkins Park"
Additional Photos
Additional Photos
Additional Photos
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 Rockville, 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!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+7

Response time8 hrs
14 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Pohlman Plumbing Inc
Pohlman Plumbing Inc
4.4(
42
)
Central Humidifier - Install or Replace

Serving Rockville, MD and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"Very professional technician team. Had confusion regarding the size of toilet ordered and what was received. It had rain day prior and techs did not wear foot covering or masks."
Finished Shower
Finished Shower
Panoramic View
Vanity
Mid-replacement

+10

Response time8 hrs
Response rate97%
Recommended by86%of homeowners
Avatar for John C Flood LP.
John C Flood LP.
4.4(
62
)
Central Humidifier - Install or Replace

Serving Rockville, MD and surrounding areas

Approved

Super Service Award Winner

In business since 1920

Free estimates

Warranties offered

"J C Flood technician did a good job to carefully check out the issue we had with our heating system and humidifier and took steps to prevent it from happening again. Thanks!"
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
42 neighbors recently requested a quote
Recommended by49%of homeowners
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FAQs for central humidifier installation and replacement projects in Rockville, 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 Rockville, 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.