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Ductless Systems

Ductless systems offer an energy-efficient, flexible solution for heating and cooling individual rooms or entire homes, without the need for ductwork. At Althoff Home Services, we install and service ductless mini-split systems for homeowners in Crystal Lake and the surrounding Chicago suburbs. These systems are perfect for home additions, finished basements, older homes, or any space where traditional ducted systems aren’t practical.

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

Ductless heating and cooling systems provide personalized comfort with zoned temperature control, quiet operation, and impressive energy efficiency. Whether you’re replacing inefficient window units or supplementing your current HVAC system, we’ll help you find the perfect ductless solution for your space. At Althoff Home Services, we combine expert guidance, top-tier products, and outstanding service to ensure year-round comfort, no ducts required.

Proudly serving the Crystal Lake area for over 60 years!

Ductless Heating and Cooling Explained

Ductless systems, also known as ductless mini split heat pumps, are a modern solution for homeowners who want efficient comfort without the need for traditional ductwork. At Althoff Home Services, we install and service ductless systems that provide both heating and cooling through a compact, versatile design. These systems consist of one or more indoor air-handling units connected to an outdoor condenser by a small conduit, making them perfect for homes where ductwork is impractical or unavailable.

Ductless systems are ideal for room additions, garages, basements, older homes, and any space where zoned temperature control is preferred. Because they don’t require ducts, installation is faster and less invasive than traditional HVAC systems. With quiet operation and easy-to-use remote or smart controls, ductless heating and cooling offers unmatched convenience and comfort. If you’re looking for a flexible, energy-efficient solution, ductless may be the perfect fit for your home.

The Benefits of Ductless Mini Split Heat Pumps

Ductless mini split systems offer several advantages over traditional heating and cooling methods. At Althoff Home Services, we often recommend ductless systems to Crystal Lake homeowners who want better control over their indoor comfort and energy use. One of the biggest benefits is zoned heating and cooling, you can independently control the temperature in different areas of your home, which reduces energy waste and keeps everyone comfortable.

These systems are also highly energy-efficient. Since there are no ducts to leak air, ductless units deliver more of the conditioned air they produce. This efficiency often translates into lower utility bills. In addition, ductless mini splits improve indoor air quality with built-in filtration and dehumidification. They operate quietly, are sleek in design, and require minimal maintenance. Whether you want to supplement your central system or replace outdated window units, ductless systems offer a smarter, more sustainable solution.

We Offer Full Ductless Services

At Althoff Home Services, we provide complete ductless services, from system selection and professional installation to repair and maintenance. We’ll start by evaluating your home’s layout and heating and cooling needs to recommend the best ductless system for your space. Our experienced technicians handle every step of the installation process with precision and care, ensuring optimal performance from day one.

Already have a ductless system? We also offer repairs and seasonal maintenance to keep your equipment running smoothly year-round. Our team is trained to work on all major brands and models, and we stand by our work with a 100% satisfaction guarantee. Whether you’re exploring ductless technology for the first time or need expert service on an existing system, Crystal Lake homeowners trust Althoff Home Services for dependable solutions and outstanding support.

What Are Other Homeowners Saying?

Excellent
Althoff Home Services4.8
Based on 1086 reviews
Jackie Dugger
1 day 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
3 weeks 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
4 weeks ago
Jim our tech was amazing Explained everything so we understood everything he was doing Very professional and knowledgeable! Thank you Jim
Jim Marks
1 month ago
Very good explanation of what needs more immediate attention if anything, or what could wait.
Becki Parsons
1 month 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 Slater
1 month 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
2 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
2 months ago
Very efficiently did the maintenance. Couldn’t have asked for more. Very satisfied as usual.
Richard Elke
2 months ago
Scott was very professional. He explained all of our options and costs. He inspected our sub pump.
Renee Diak-Witek
2 months ago
Very friendly and knowledgeable about anything I needed to know.
Catherine A
2 months ago
Scott was prompt, very pleasant and did a great job!
Gwen
2 months ago
Extremely pleased with this company and the employees I dealt with so far.
excellent service - professional and friendly. Andres was the best!
Daniel Bochneak
2 months ago
Regular interval preventive maintenance check-ups performed by a Althoff's HVAC professional assures that our HVAC system is safe and functioning with the level of efficiency necessary to maintain our household comfort and safety. We have used Althoff Home Services for several years and have always been extremely satisfied with their services. Our Althoff technician Scott is a trusted expert in his profession. We appreciate his diligence and attention to detail that has meaningfully contributed to our home's comfort & safety.
Jason Schumaker
2 months ago
Scott White is fantastic
Jim Andrulis
2 months ago
Althoff repairman advised me of a problem with my a/c. He gave me some options for repair and the cost estimates. They even sent another man to offer quotes for a whole system replacement. i appreciated the options with no pressure.
Greg M.
2 months ago
Thorough check and clean of Furnace and Humidifier. The contact with the office and the work performed by Justin were both done in a professional manner. Thank you.
Mandy Bone
3 months ago
Althoff has helped us with our boiler system as well as our AC unit. They have repaired old units we had and even installed new ones when we needed. Everyone we worked with was kind, professional, and knowledgeable about the products.
William Merriman
3 months ago
Craig is very thorough with his work. Also very friendly and trustworthy. I would prefer he be the person you always send for the seasonal check ups.
David Schaak
3 months ago
Very good and informative worker. You could tell that he enjoyed the work.
Melissa Mikos
3 months ago
Matthew was such a pleasure to work with. He explained everything in layperson terms. Which I appreciated because I was extremely stressed out from the whole issue at hand. He gave me several different options to deal with the water damage and diagnose the source of the problem. of the leak. In conclusion, I would and will go to Altoff for all my future plumbing needs.
Chris Warren
3 months ago
We use Althoff Home Services for almost all of our HVAC, Plumbing, and Electrical needs. Pros: - It is easy to schedule an appointment with them. If you are a member of their White Glove Club, you get priority scheduling. - They spend time explaining the work they perform and any recommendations they have. - Their pricing is transparent. Everything is quoted and sent via email, so you know what you are paying every time they come to your house. - Their employees do not work on commission, so there are no high-pressure sales tactics unlike some of their competitors. Cons: - Some of their services are a little expensive. I would hire a handyman to do things like re-seat a toilet or replace a faucet in lieu of hiring of one of their professional plumbers. - They charge to come out to your house to give pricing estimates, but will deduct this from your bill should you choose to use them. I highly recommend Althoff’s and their team of professional staff!
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