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Family-owned since 1981

Phones answered live 24/7

Office Mon-Fri 7am-4pm

Indoor Air Quality Services

Whole-Home Dehumidifiers in Peabody, MA and the North Shore

Manage humidity and enhance comfort in your home with our AC dehumidifier services. Contact Spencer Home Services now and ask about our dehumidifiers.

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Phones answered live 24/7Office Mon-Fri 7am-4pm

4.9Google rating

Phones answered live 24/7Office Mon-Fri 7am-4pm

Licensed & insuredMA #11868 · #4610PLC

  • Same-day consultations
  • Financing available
  • Free estimates with installs/replacements only

Signs your home needs a dehumidifier

Spencer’s licensed HVAC technicians have been solving moisture problems for North Shore homeowners for over 45 years. If you notice any of these warning signs, call us for a free estimate.

  • Condensation on windows during warm weatherWhat we check

    Water droplets forming on the inside of windows during summer indicate that indoor humidity levels are too high. This excess moisture promotes mold growth on window frames, sills, and surrounding drywall.

    We measure the humidity in the living area and the basement and check how the cooling system handles moisture.

    • Humidity on each floor
    • AC run time and airflow
    • Window and sill condition
  • Musty or damp smell in your basementWhat we check

    A persistent musty odor in the basement is caused by mold and mildew growth fueled by excessive moisture. This smell often spreads to upper floors through the HVAC system, affecting air quality throughout the entire home.

    We look for where the moisture comes from, because a dehumidifier handles damp air but not water coming in.

    • Basement humidity
    • Signs of water entry
    • Return air drawn from the basement
  • Visible mold growth on walls or ceilingsWhat we check

    Mold on basement walls, bathroom ceilings, or around windows indicates sustained high humidity that exceeds the ability of normal ventilation to control. Professional dehumidification is necessary to bring moisture levels below the threshold that supports mold.

    We check the humidity where the growth is and whether ventilation, the AC or a dehumidifier is the right fix.

    • Humidity at the affected area
    • Bathroom and kitchen ventilation
    • Capacity the space needs
  • Warping or buckling wood floors and trimWhat we check

    Excessive moisture causes hardwood floors to cup, buckle, or develop raised edges, and trim pieces to swell and separate from walls. This damage is especially common in North Shore homes during humid summers.

    We check summer humidity across the house and how a dehumidifier would tie into the duct system.

    • Humidity in finished rooms
    • Duct access for a ducted unit
    • Drain location
  • Allergies or asthma symptoms worsen in summerWhat we check

    Dust mites and mold thrive in high-humidity environments. If family members experience worse allergy or asthma symptoms during summer months, elevated indoor humidity is likely fueling the growth of these biological allergens.

    We check whether the house stays above the 30-50% range in summer and how the system could hold it lower.

    • Summer humidity readings
    • Filter and airflow
    • Humidistat control

What to expect from your dehumidifier service

  1. Contact us

    Tell us where the house feels damp and when, and we set up a visit.

  2. In-home assessment

    We measure humidity, look at the basement and the duct system, and check for water coming in.

  3. Custom recommendation

    We explain whether a ducted or stand-alone unit fits, its capacity, and the price before you approve any work.

  4. Expert installation

    We install the dehumidifier, the drain, the power and the humidistat.

  5. Tested and set

    We run it, confirm it drains, and set the humidity target with you.

What changes the work and the price?

The exact price comes after we see the house. These are the factors that most often change the work.

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  • Ducted or stand-alone

    A ducted unit needs duct connections; a stand-alone unit needs only power and a drain.

  • Capacity

    A larger or damper space needs a unit that removes more water a day.

  • Drain and power

    The distance to a drain or a pump, and to an outlet, changes the work.

  • Where the moisture comes from

    If water is coming in, that has to be dealt with too; a dehumidifier handles damp air only.

Our work is backed by a lifetime workmanship warranty for the typical lifespan of the installation. Terms apply.

See warranty details

Which dehumidifier fits your home

Where the moisture is, and how much there is, decide the type and the capacity.

  • Whole-home ducted dehumidifier

    Connects to the duct system and treats the air the system moves, on every floor it serves. Sized by how many pints of water a day it removes.

    • Drains on its own
    • Controlled by a humidistat

  • Stand-alone basement dehumidifier

    A compact unit for a basement or a space the ducts do not reach, piped to a drain.

    • No duct work needed
    • Continuous drain

  • Service an existing dehumidifier

    When a unit is installed but the house still feels damp, we check it before suggesting a new one.

    • Drain and filter
    • Humidistat setting
    • Capacity for the space

From Spencer's Google reviews

“Excellent service from technician Anthony. What I like about Spencer services is that they come when they say they will and the work is very dependable.”
William S., Google review, August 2026

4.9 Google rating

Read our Google reviews →

Family-owned in Peabody since 1981

Licensed & insured · MA #11868 · #4610PLC

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Mass Save Approved ContractorMass Save Rebate Partner

Frequently asked questions

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  • What is the difference between whole-home and portable dehumidifiers?

    Whole-home dehumidifiers integrate with your HVAC ductwork, treat the entire house automatically, and drain continuously. Portable units only cover one room, require manual emptying, and cannot handle the moisture load of a full home or wet basement.

  • What is the ideal indoor humidity level?

    The EPA recommends maintaining indoor humidity between 30% and 50% year-round. Above 60%, mold and dust mites thrive. Spencer installs humidistats that automatically maintain your target level for optimal comfort and health.

  • How much does a whole-home dehumidifier cost?

    The price depends on whether the unit is ducted or stand-alone, its capacity, and the drain and power work. Estimates for installations and replacements are free. You get the exact price before any work begins.

  • Can a dehumidifier solve my wet basement problem?

    A dehumidifier controls airborne moisture but cannot stop active water intrusion. If water is coming in, that has to be fixed at the source; we tell you what we find and size the dehumidifier for the damp air that remains.

  • What size dehumidifier do I need for a basement?

    Dehumidifiers are rated by how many pints of water they remove in a day. The right size depends on the floor area and how damp the space runs, so we measure before recommending one.

  • Doesn't my air conditioner already dehumidify?

    An air conditioner removes some moisture while it cools, but on mild, humid days it may not run long enough to dry the house, and it does not treat a basement it does not cool. A dehumidifier controls humidity whether or not the AC is running.

  • Do whole-house dehumidifiers work?

    Yes, when the unit is sized for the space and the system moves air through it. A whole-house dehumidifier pulls air from the house, removes moisture, and drains the water away on its own. It does not stop water coming in through a foundation, so we check for that first.

Request dehumidifier service

978-293-5770

Phones answered live 24/7Office Mon-Fri 7am-4pm

Tell us what is happening and how to reach you. A team member will call to discuss the request and confirm availability.

  • 4.9 Google rating
  • Licensed & insured · MA #11868 · #4610PLC
  • Family-owned in Peabody since 1981
  • Same-day service available. Ask when you call.
“They were efficient, courteous, clearly knew what to do and we felt very satisfied.”
Printice R., Google review, August 2026

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