Home - Indoor Air Quality - Humidifiers and Dehumidifiers

Humidifiers and Dehumidifiers

Maintaining the right indoor humidity level is essential for comfort, health, and protecting your home. At Althoff Home Services, we install and service whole-home humidifiers and dehumidifiers for homeowners in Crystal Lake and the surrounding Chicago suburbs. Whether your home feels too dry in winter or too muggy in summer, we offer targeted solutions that integrate with your existing HVAC system to restore balance and improve air quality.

  • Family owned since 1961
  • We provide quotes before performing service
  • 100% satisfaction guarantee

Our expert technicians will help you choose the right equipment for your needs and ensure proper installation for long-term performance. With the right humidity control system, you’ll enjoy better sleep, fewer allergy symptoms, and a more comfortable home year-round. Trust Althoff Home Services to bring balance back to your indoor air.

Proudly serving the Crystal Lake area for over 60 years! 

The Negative Effects of High Humidity in a Home

At Althoff Home Services, we often help homeowners in Crystal Lake and the surrounding Chicago suburbs tackle the discomfort and damage caused by high indoor humidity. When excess moisture builds up in your home, it can lead to more than just a sticky, uncomfortable feeling. High humidity encourages the growth of mold and mildew, damages wood furnishings, and creates an ideal environment for dust mites and allergens.

If your windows are fogging, your home feels musty, or you notice signs of mold, it’s time to take action. A professionally installed whole-house dehumidifier removes excess moisture from the air, helping your HVAC system run more efficiently while improving overall air quality. At Althoff Home Services, we offer customized dehumidification solutions that integrate with your central HVAC system, protecting both your comfort and your investment. Don’t let humidity compromise your home, trust us to restore balance.

Dry Air in Your Home Is a Problem Too

While high humidity is a concern during warmer months, low humidity can be just as problematic during winter. Dry air pulls moisture from your skin, furniture, and even your home’s structure. It can lead to dry sinuses, cracked lips, irritated skin, and respiratory discomfort, especially when heating systems are running nonstop.

Static electricity, warped wood floors, and creaky furniture are all signs that your indoor air might be too dry. At Althoff Home Services, we install whole-home humidifiers that work in tandem with your HVAC system to add just the right amount of moisture to the air. These systems improve health, preserve your home’s materials, and make your environment feel more comfortable.

Our team listens to your concerns and assesses your indoor air before recommending a solution. With years of experience serving Crystal Lake and nearby suburbs, we know how to help you achieve ideal humidity levels year-round.

Whole-House Humidification & Dehumidification Is the Answer

You don’t have to settle for seasonal discomfort or rely on ineffective portable units. Whole-house humidifiers and dehumidifiers are the most efficient and reliable way to control your indoor air’s moisture content. Installed directly into your HVAC system, these units treat every room of your home automatically and quietly.

Althoff Home Services provides expert installation, maintenance, and repair for humidity control systems. We’re family owned since 1961, and we provide quotes before performing service, no surprises. Every job is backed by our 100% satisfaction guarantee.

If you’re ready to take control of your home’s humidity, let Althoff Home Services help. Schedule a consultation with our team and enjoy cleaner, healthier, and more comfortable air all year long.

What Are Other Homeowners Saying?

Excellent
Althoff Home Services4.8
Based on 1092 reviews
Lyn Cablk
2 weeks ago
Altoff's service is always excellent. We've never been disappointed and our history with them goes back 28 years, ever since we moved to this community!
tiffany foreman
2 weeks ago
Mark was friendly, professional and thorough. He did a great job fixing and cleaning my AC unit. He took time to look everything over and made recommendations for services in the future. I appreciated his advice and attention to detail. I would definitely recommend him!
John Cadwell
2 weeks ago
AC tune-up - very thorough.
Ouzelfalls
2 weeks ago
I recently switched to Altoff Services to do my annual A/C and Heater maintenance. They came this week to do the A/C. they did a thorough job in testing my A/C's cooling efficiency. they tested refrigerant levels.They removed the outside unit's shroud and thoroughly cleaned the unit. This was the first time anyone did that. I was very happy with the work they did.
Lois
2 weeks ago
I was out of the state when my son texted about the water leak in the basement. Althoff responded promptly and resolved the issue. So happy with the service they provide!
Laura Frayn
3 weeks ago
My A/C stopped working due to an unusual problem. Edwin used excellent analytical skills to find the solution. He was professional, thorough, and an excellent communicator. I highly recommend Edwin and Althoff
Greg Vachon
3 weeks ago
We had new a/c compressor and attic fan unit installed in the spring. Team was efficient and did a great job. Completed just as stated. Electricity bill went from above average for neighbors to below average according to ComEd report. It has been a lot of savings (plus house is cool - old one wasn't working well). Technicians have been wonderful in ensuring working just right (Ryan Staral, thanks! ... Brian Pulaski, thanks!). The staff calling us for our maintenance check (free with install) were so polite and accommodating. Really stellar service!
Mark Palmer
3 weeks ago
Jon at Althoff was a lifesaver. Had a leak that several other companies were unable to fix. Jon had a great attitude and resolved my problem quickly. I will be using Althoff in the future.
Bob Rozycki
3 weeks ago
Yesterday we had our furnace, air conditioning unit, air filter system and whole house humidifier replaced. Alex Florita and Wiktor Kruzel were the two technicians who removed the old equipment and installed the new products. To say the installation was flawless, incredibly clean and perfectly done would be a gross understatement. These craftsmen did a fantastic job, were very careful in our home and answered all of our questions completely. We , as usual with Althoff, were totally satisfied. Today, Jesse Hernandez from Althoff came to us to replace our water heater. He was incredible. He was friendly, professional, and went way beyond my expectations. He answered every one of our questions, provided us with advice on how to best use the equipment and did an outstanding installation of our new tankless water heater. We have been customers of Althoff Home Services for over thirty years Over that time we have worked with many technicians and staff members to address our needs. I can say, without reservation, that all of these people met or exceeded our expectations. Jesse, Alex and Wiktor FAR exceeded those expectations. Jesse is an incredible technician. And what a truly nice person. Totally outstanding in every way. Bob and Sharon Rozycki
Mark Paszkiet
3 weeks ago
HVAC check-up
Jackie Dugger
3 weeks ago
Erik was quick, kind, and clean. Excellent service as part of my regular AC maintenance plan.
Althoff just finished the second job at our home this year. They do everything at the highest possible level. Great workmanship with great attitudes. Would recommend!!
Janet
1 month ago
Brian was our tech at my dad's place. He did an HVAC checkup. My 99 yr old dad wanted to go to the basement with Brian so she could see what Brian recommended. He took the time to explain everything to dad, which I thought was so nice, given the fact it took dad awhile to get down the stairs! Great service.
Randy Malin
2 months ago
Jim our tech was amazing Explained everything so we understood everything he was doing Very professional and knowledgeable! Thank you Jim
Jim Marks
2 months ago
Very good explanation of what needs more immediate attention if anything, or what could wait.
Becki Parsons
2 months ago
Todd was very nice and knew what he was talking about. Suggested things we can do. He was very pleasant to talk to and we would love to request him every time we to service our home. 5 stars and more!!!!
Steve S.
2 months ago
Would highly recommend Althoff for your electrical needs. Our tech. Scott was friendly, efficient and professional. He explained exactly what he was doing and the need for safety repairs to our electrical panel. Great job!!
Susan Richardson
2 months ago
I had a very nice young man for my technician. He checked and cleaned everything and told me all was well. Of course that made me happy. The technician was here to clean and check my heating system for the winter
Fred Ichinose
2 months ago
Super responsive, communicative, informative, friendly, competitive and got the job done well. Highly recommended.
L
3 months ago
We are so pleased with the work Victor and Braden did-- professional, friendly, fast, and with great explanations. We could not be happier with their work, as we always are with your company's work. The Daikin unit is working perfectly, keeping our open concept kitchen, family room, music room, and dining room a uniform, warm temperature. THANKS!!!
Mike Weber
3 months ago
Very efficiently did the maintenance. Couldn’t have asked for more. Very satisfied as usual.
Richard Elke
3 months ago
Scott was very professional. He explained all of our options and costs. He inspected our sub pump.
Renee Diak-Witek
3 months ago
Very friendly and knowledgeable about anything I needed to know.
Catherine A
3 months ago
Scott was prompt, very pleasant and did a great job!
Gwen
3 months ago
Extremely pleased with this company and the employees I dealt with so far.
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