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

Avatar for MSD Heating & Cooling
MSD Heating & Cooling
4.9(
74
)
Central Humidifier - Install or Replace

Serving Central Islip, NY and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"They responded to my home quickly and professionally. The technician was very knowledgeable and candid and saved me unnecessary expenses. They fixed the issue and has our ac back up and running within an hour and made sure everything was clean before they left. Will definitely recommend them."
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+1

2 neighbors recently requested a quote
Recommended by96%of homeowners
Just Rite Heating and Cooling
4.9(
132
)
Central Humidifier - Install or Replace

Serving Central Islip, NY and surrounding areas

Approved

In business since 1995

Free estimates

Credit card accepted

"Eric showed up for the estimate on time and called back a few days later to check in. Eric and his crew replaced my central air today. They showed up on time and got right to work. The install went quick and it looks professional and neat. Will recommend him to anyone needs HVAC."
Response time5 hrs
4 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for All Weather Heating & Cooling
All Weather Heating & Cooling
4.5(
70
)
Central Humidifier - Install or Replace

Serving Central Islip, NY and surrounding areas

Approved

In business since 1969

Free estimates

Emergency services offered

"I had the equipment replaced, a brand new, super high efficiency, fancy, lovely stuff. It's a central air system, and it's Lennox equipment. It's high efficiency. You can get it for less than that, but you're not gonna get the high efficiency quiet and all that kind of stuff. I had received other quotes which were like more money for the same system. I have been using them since 1986. No complaints. They do their thing, and I can't fault them. I have a service contract with them for this."
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+13

Response time3 days
7 neighbors recently requested a quote
Recommended by94%of homeowners
Rizzo Heating & Cooling, Inc.
4.9(
87
)
Central Humidifier - Install or Replace

Serving Central Islip, NY and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"As soon as I went on Angieâ s list they contacted me. He asked for pictures of our hot water heater and all the documentation on it. By the end of the day he sent me a quote for two different models. The night before he came to install the new heater he asked to see it to be sure he would have everything he needed. Mr. Rizzo is an excellent plumber and a pleasure to work with. He covered all the floors I would definitely recommend him. He was a rare find!"
Response time7 hrs
Recommended by100%of homeowners
Avatar for Surefire Mechanical Corporation
Surefire Mechanical Corporation
4.5(
157
)
Central Humidifier - Install or Replace

Serving Central Islip, NY and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"I sent a message to the company in the late evening regarding my broken central AC and Jason was here Tuesday morning to look at it. He tried to repair it but was not able to due to the age of the unit and the damage. We needed a new unit and he was here to put it in first thing Wednesday morning. Took him two hours and our AC was working. He was nice and professional. We felt the price was reasonable. Would use him again and recommend his business."
4 Zone Navien Boiler
1st Floor AC System
Hi Efficient Heat and Hot Water
Snow melt sensor
Manifold

+14

Response time10 mins
Recommended by97%of homeowners
Avatar for Elm Air Conditioning Corp
Elm Air Conditioning Corp
4.4(
82
)
Central Humidifier - Install or Replace

Serving Central Islip, NY and surrounding areas

Approved

In business since 1952

Free estimates

Warranties offered

"The entire experience from the discussions with the company rep Scott O, to the completion of the installation was excellent. The installers were courteous, knowledgeable and efficient. The Mitsubishi unit itself is an excellent product. Cools quickly, quietly, and is multifunctional. The installers Brian and Moses did the job in a courteous, knowledgeable and efficient manner. All stages of the job went smoothly. Functions of the unit and use of the remote were explained thoroughly and a booklet was provided that reinforces the information. Cleanup was excellently done. I am very pleased with the communication with Scot O choosing the product to be installed, getting questions answered as well as with the knowledgeable, courteous and efficient installers. I highly recommend Elm Air Conditioning."
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14 neighbors recently requested a quote
Recommended by77%of homeowners
Avatar for Long Island HVAC
Long Island HVAC
3.8(
6
)
Central Humidifier - Install or Replace

Serving Central Islip, NY and surrounding areas

Approved

In business since 2012

Free estimates

Customers say: Quick response

Long Island HVAC Inc., where service meets integrity. We are the company that treats you right even after the work is completed. Contact us for a free estimate! \n \nWith so many contractor companies to choose from choose the one that was built on the belief system of integrity. We know that one of the most important aspects of your home is the quality and performance of your heating and cooling system. Whether during the hot-humid summer or the bitter-cold winter, making sure that the inside of your home stays at a constant, comfortable temperature is of paramount importance. It is our goal to provide all of our customers with the courteous attention they deserve, any time of the day, every day of the year. Long Island HVAC, Inc. is gearing up for winter. Contact us for a free Heating estimate today! \n

 Fujitsu Ductless heat pump in a classroom
Service call for a system low on refrigerant
Solar powered attic exhaust fan
Recommended by66%of homeowners
Avatar for Central Suffolk Mechanical LLC
Central Suffolk Mechanical LLC
4.8(
22
)
Central Humidifier - Install or Replace

Serving Central Islip, NY and surrounding areas

In business since 2009

Free estimates

Emergency services offered

"I've been using Central Suffolk Mechanical for my AC and heating maintenance for a number of years at 2 houses in Suffering lol County. Work is always performed professionally and timely. Extremely reliable service. Also had a hot water heater and a central AC unit installed, again done professionally and at the time and price promised. I highly recommend Joe and his crew for all HVAC needs."
Recommended by95%of homeowners
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FAQs for central humidifier installation and replacement projects in Central Islip, NY

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 Central Islip, NY 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.