Humidifier Installation & Repair in Gwinnett County

Breathe Easier. Protect Your Home. Stay Comfortable Year-Round.

Dry indoor air can cause cracked skin, sinus irritation, static electricity, and damage to wood floors and furniture. Henson Heating Air and Plumbing installs and repairs whole-home humidifiers throughout Gwinnett County, including Loganville, Lawrenceville, Duluth, Conyers, Covington, Lithonia, Stone Mountain, Decatur, and Oxford. Keep your home's humidity balanced all year long.

Whole-House Humidifier Installation & Repair | Improve Indoor Air Quality

Better Air. Better Health. Better Comfort.

During Georgia's dry winter months, indoor air humidity can drop to dangerous levels—often below 30%, when experts recommend 40-60% for optimal comfort and health. Low humidity causes dry skin, respiratory irritation, static electricity, and even damage to wood furniture and flooring. A whole-house humidifier solves this problem by adding moisture to your home's air automatically.

Henson Mechanical installs and repairs whole-house humidifiers throughout Georgia. We work with premium brands (Aprilaire, Generalaire, Honeywell) and ensure your humidifier operates efficiently to maintain healthy humidity levels year-round.

Why Humidity Matters:

Health Impact: Low humidity (below 30%) irritates mucous membranes, worsens respiratory issues, increases cold/flu susceptibility, and causes dry skin and lips. Conversely, too-high humidity (above 60%) promotes mold growth and dust mites.

Optimal humidity is 40-60%. This range:

  • Reduces cold and flu transmission
  • Relieves dry skin and respiratory irritation
  • Minimizes static electricity shocks
  • Improves sleep quality
  • Protects wooden furniture and flooring from cracking
  • Reduces dust circulation

Home Protection: Low humidity causes wood to shrink and crack—damaging furniture, flooring, trim, and musical instruments. High humidity promotes mold, mildew, and dust mites. Balanced humidity protects your home's structure and contents.

Comfort: The same temperature feels more comfortable at optimal humidity. 68°F at 50% humidity feels warmer than 68°F at 20% humidity. Proper humidity lets you feel comfortable at lower temperatures, saving energy.

Why Portable Humidifiers Fall Short:

Those small humidifiers you buy at stores have significant limitations:

  • Only humidify one room (not your whole home)
  • Require constant water refilling
  • Require frequent cleaning (mold/mildew risk if not maintained)
  • Expensive to operate continuously
  • Don't integrate with your HVAC system
  • Some emit visible mist that damages electronics
  • Noise and aesthetic issues

A whole-house humidifier integrates with your furnace, automatically maintaining humidity throughout your entire home.

How Whole-House Humidifiers Work:

A whole-house humidifier mounts on your furnace ductwork and uses water vapor to add moisture to your heating system's airflow:

  1. Water supply line connects to the humidifier from your main water line
  2. A humidifier pad (evaporative media) saturates with water
  3. Your furnace's blower pulls air through the wet pad
  4. Water evaporates, adding moisture to the heated air
  5. Humidified air circulates throughout your home via ductwork
  6. A humidistat (humidity control) monitors humidity and triggers the humidifier to add moisture when needed

Modern humidifiers are automatic—they maintain your set humidity without manual intervention.

Types of Whole-House Humidifiers:

Bypass/Evaporative Humidifiers:

  • Most common and affordable ($400-$800 installed)
  • Use ductwork bypass to direct air through humidifier pad
  • Operate only when furnace is running
  • Best for consistent, moderate humidity needs

Fan-Powered (Drum) Humidifiers:

  • Can operate independently of furnace
  • More expensive ($600-$1,200 installed)
  • Better for climates with more variable humidity
  • Ideal if you use air conditioning (AC doesn't dehumidify like furnace humidifies)

Steam Humidifiers:

  • Generate steam by heating water
  • Most effective for very dry climates
  • Most expensive ($1,200-$2,000 installed)
  • Use more energy than evaporative types
  • Less common in Georgia's moderate climate

Installation Process:

  1. Home Assessment: We evaluate your home's humidity needs based on home size, insulation, and current humidity levels
  2. System Sizing: We calculate the correct humidifier capacity (GPD - gallons per day) for your HVAC system
  3. Water Supply Planning: We locate your furnace and plan water line connections (typically tapping into existing water supply)
  4. Installation:
    • Mount humidifier on furnace ductwork
    • Connect water supply line
    • Install drain line for excess water
    • Integrate humidistat with HVAC controls
    • Test operation and adjust settings
  5. Training: We explain operation, maintenance, and seasonal adjustments

Humidifier Maintenance:

Annual maintenance extends humidifier life and ensures optimal operation:

  • Replace humidifier pad (typically yearly)
  • Inspect water lines for leaks
  • Clean humidifier housing
  • Verify humidistat calibration
  • Flush mineral deposits from lines

Neglected humidifiers develop mineral buildup, mold, or water leaks—costing more in repairs than simple maintenance.

Seasonal Use in Georgia:

Georgia's humidity varies seasonally:

  • Winter (Nov-March): Indoor air becomes very dry. Humidifier is essential
  • Spring/Fall: Natural outdoor humidity increases; humidifier may run part-time
  • Summer: Air conditioning naturally dehumidifies; humidifier stays off

We help you set seasonal humidity targets to keep your home comfortable year-round.

Humidifier Repair Issues:

Water Leaks: Failed seals or cracked water lines cause leaks. We repair or replace failed components.

Not Adding Humidity: Clogged pads, mineral buildup, or failed humidifier pad prevent moisture addition. Pad replacement usually fixes this.

Humidistat Not Working: False humidity readings or failed controls prevent humidifier activation. We test and repair/replace.

Mold/Mildew Smell: Neglected humidifiers develop mold in the pad or lines. We clean and may recommend pad replacement.

Water in Ductwork: Improperly sized or installed humidifiers can cause water damage to ducts. We fix drainage and adjust operation.

Humidifier Services We Provide

Whole-home humidifier installation, Bypass and fan-powered humidifier options, Humidifier repair and troubleshooting, Humidistat calibration and replacement, Evaporator pad and filter replacement, Annual humidifier maintenance, Indoor humidity testing and consultation, Integration with existing Daikin and Carrier HVAC systems

FREE In-Home Estimates | Starting at $4,500 Installed | Most Installs Completed in Half a Day | Brands: Daikin & Carrier | Financing Available

Benefits of Proper Home Humidity:

  • Health: 40-60% humidity reduces cold/flu transmission and respiratory irritation
  • Comfort: Proper humidity makes your home feel warmer at lower temperatures (energy savings)
  • Energy Savings: Comfortable at 68°F with 50% humidity vs. 72°F with 20% humidity saves 8-15% on heating
  • Home Protection: Prevents wood damage, reduces mold/mildew risk
  • Sleep Quality: Proper humidity improves sleep quality
  • Skin Health: Reduces dry skin, eczema flare-ups

Humidifier Pricing

Clear Pricing. No Hidden Fees.

Whole-Home Humidifier Installation: From $499 — Includes professional installation of a bypass or fan-powered humidifier integrated with your existing HVAC system.


Humidifier Repair: From $89 — Diagnosis and repair of humidifier issues including leaks, low output, faulty humidistats, and clogged water lines.


Annual Humidifier Maintenance: $69 — Includes evaporator pad replacement, water panel cleaning, humidistat calibration, and full system inspection.


All pricing is provided upfront before any work begins. Financing options are available for installations.

Evaluate Indoor Air Quality

We test your home's humidity levels and assess your HVAC system to determine the best humidifier solution for your space and comfort needs.

Install & Connect

We install your whole-home humidifier directly into your HVAC system and connect it to your water supply. Everything is done professionally and cleanly — no mess, no hassle.

Test & Calibrate

Once installed, we calibrate the humidistat to your ideal humidity level and test the system to confirm proper operation. We'll walk you through how to use and maintain your new humidifier.

ype of Humidifier

Bypass humidifiers use your HVAC blower to push air through a water panel, making them a cost-effective option. Fan-powered humidifiers have their own fan and can produce more moisture output, which is ideal for larger homes. The type you choose affects both performance and price.

Home Size

Larger homes require humidifiers with higher moisture output capacity. The square footage of your home and the number of levels will determine the size and type of humidifier needed for effective whole-home coverage.

Existing HVAC Integration

Whole-home humidifiers connect directly to your existing HVAC ductwork and water supply. If your system requires modifications or additional plumbing work for the water line, this may add to the installation cost.

Water Supply Connection

Humidifiers need a dedicated water supply line. If one is already nearby, installation is straightforward. If new plumbing is required to route water to your HVAC system, this will add to the project scope and cost. Henson handles both HVAC and plumbing, so we can manage the entire installation in-house.

Ready to Get Comfortable? Let's Talk.

Serving Loganville, Lawrenceville, Duluth, Conyers, Covington, Lithonia, Stone Mountain, Decatur, Oxford, and all of Gwinnett County. Available 24/7.

FAQ for Humidifier Repair and Maintenance

Q How much does a whole-house humidifier cost?

A

Installation typically runs $400-$1,200 depending on type and complexity. Bypass models are most affordable; steam humidifiers most expensive.

Q Do I need a humidifier in Georgia?

A

Yes, during winter months (Nov-March) when indoor humidity drops significantly. Even Georgia's relatively humid climate has dry winters indoors.

Q How much does it cost to maintain a humidifier?

A

Annual maintenance (pad replacement, cleaning) costs $50-$150. Very affordable for the benefits provided.

Q Can I use a portable humidifier instead of a whole-house unit?

A

Portable humidifiers only humidity one room and are inconvenient. Whole-house units provide consistent, automatic humidity throughout your home.

Q Will a humidifier increase my energy bill?

A

Minimally. The energy used to add humidity is offset by being able to lower your heating temperature (proper humidity feels warmer). Net energy impact is negligible or slightly positive.

Q What humidity level should I maintain?

A

40-60% is ideal. In winter, many homes maintain 30-40% because higher levels can cause condensation on windows. We help you find the right balance.