Expert Air Conditioning Services in Crystal Lake, Hillside & Beyond
Since 1961, Althoff Home Services has set the standard for residential cooling in the Northwest and Western Suburbs. Whether addressing an urgent repair or installing a high-efficiency system, our NATE-certified technicians provide thoughtfully engineered solutions built for lasting comfort.
We provide quotes before
performing service
Family owned since
1961
Proudly serving the Crystal
Lake area for over 60 years!
100% satisfaction
guarantee
Air Conditioning Services
When your comfort is compromised, you need a team you can rely on. Althoff Home Services is available around the clock to restore cooling and peace of mind – no matter when an issue arises. Our experienced technicians respond promptly and arrive prepared to address urgent concerns with care and professionalism
Air Conditioning Installation & Replacement
Expert installations for efficient, reliable cooling and lasting comfort.
Air Conditioning Repair
When your air conditioner stops working, you deserve more than a quick fix – you deserve service you can truly rely on.
Air Conditioning Maintenance
Preventative air conditioning maintenance and regular tune-ups for your system.
Emergency Air Conditioning
No guesswork, no surprises–just honest, expert service when you need it most.
Ductless Systems
Energy-efficient, flexible way to heat and cool individual rooms or entire homes.
Central Air Conditioners
One of the most efficient and effective ways to cool your entire home.
Heat Pumps
Heat pumps provide heating and cooling in one system, offering an efficient, eco-friendly solution for simpler home comfort.
Wifi / Smart Thermostats
From smart features to zoning control, we’ll help you choose the right thermostat and install it for optimal performance.
Unico High-Velocity HVAC Systems
Chicago’s historic homes get comfort without compromise with Unico.
Precision AC Installation & Replacement
A new air conditioning system is only as effective as its installation. At Althoff Home Services, we take the time to properly size your system using detailed load calculations that consider your home’s layout, insulation, and window placement. This helps ensure consistent comfort, improved efficiency, and dependable performance.
Any Problem? We’re Here to Help!
We Specialize In:
Central Air Systems
High-efficiency cooling for homes with existing ductwork.
Ductless Mini-Splits
Flexible comfort solutions for additions, renovations, or older homes.
Heat Pumps
Efficient, all-in-one heating and cooling for year-round comfort.
Preventive Maintenance & The White Glove Club
Routine maintenance helps keep your air conditioning system operating efficiently and reliably. Our comprehensive cooling tune-ups are designed to identify potential concerns early, support system performance, and help extend the life of your equipment.
Questions? Contact Us Today!
Join the White Glove Club for:
Included Preventive Maintenance
Prescheduled visits to support system performance.
Enhanced Value & Protection
Equipment credits & warranty-backed repairs.
Priority Care & Scheduling
Preferred appointment availability when service is needed.
Exclusive Member Savings
Preferred pricing and rewards toward future services.
Other Althoff Home Services
When your home’s critical systems fail, you need more than a quick fix. You need a partner who understands the complex engineering of your home. At Althoff Home Services, we provide expert heating, cooling, plumbing, and electrical solutions tailored specifically for homeowners in Crystal Lake, Hillside, and the surrounding areas.
Serving Chicago's Suburbs
We proudly serve homeowners throughout the following areas, delivering
reliable, high-quality service wherever you need us.
Let’s get your project
started today!
We offer whole-home solutions, not just quick fixes.
