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Wi-Fi / Smart Thermostats

Upgrading to a Wi-Fi or smart thermostat is one of the easiest ways to boost comfort, improve energy efficiency, and take control of your home’s HVAC system. At Althoff Home Services, we help homeowners in Crystal Lake and the surrounding Chicago suburbs choose and install the ideal thermostat for their needs. Our customers appreciate the way we combine modern technology with trusted service values.

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

Whether you want remote access, learning features, or zoning capabilities, we’ll help you find the right thermostat and ensure it’s installed correctly for optimal performance.

Proudly serving the Crystal Lake area for over 60 years! 

How to Know It’s Time to Upgrade Your Old Thermostat

Many homeowners overlook the impact an outdated thermostat can have on their comfort and energy bills. If your current thermostat is non-digital, lacks programming options, or requires constant manual adjustments, it’s probably time for an upgrade. At Althoff Home Services, we help Crystal Lake homeowners modernize their HVAC controls with Wi-Fi and smart thermostats that offer greater convenience, accuracy, and efficiency.

Older thermostats often result in uneven temperatures, frequent system cycling, and wasted energy. They simply can’t match the precision or flexibility of today’s digital solutions. If you find yourself constantly fiddling with the settings or forgetting to adjust the temperature when you leave home, a new thermostat can make a big difference. Upgrading your thermostat is a small investment that pays off with better comfort control and reduced energy usage, all without replacing your entire HVAC system.

The Difference a Wi-Fi Thermostat Can Make

A Wi-Fi thermostat gives you the power to control your home’s heating and cooling from anywhere using your smartphone, tablet, or voice assistant. At Althoff Home Services, we install high-quality Wi-Fi thermostats that connect seamlessly to your existing HVAC system, giving you the flexibility to manage comfort settings remotely or on a schedule that fits your lifestyle.

Wi-Fi thermostats allow you to adjust temperatures on the go, set up daily or weekly programs, and receive real-time alerts about system performance. This level of control helps reduce energy waste and can lead to noticeable savings on your utility bills. They also offer an intuitive interface that makes it easy to track usage and fine-tune your preferences. Whether you’re on vacation or just headed home from work, a Wi-Fi thermostat helps ensure your home is always at the perfect temperature.

What’s So “Smart” About a Smart Thermostat?

Smart thermostats take everything great about Wi-Fi control and elevate it with intelligent features that learn your habits and adapt automatically. At Althoff Home Services, we recommend smart thermostats to homeowners who want effortless comfort and energy savings without constant adjustment. These systems use motion sensors, scheduling algorithms, and even local weather data to optimize your home’s climate based on your lifestyle.

Many smart thermostats can also integrate with home automation systems, voice control devices like Alexa or Google Assistant, and energy-saving programs from utility providers. Over time, they learn when you’re home, when you’re away, and what temperatures you prefer, adjusting accordingly to keep you comfortable and efficient. With professional installation and setup from Althoff Home Services, your smart thermostat becomes a powerful tool that improves comfort, saves money, and brings your HVAC system into the modern age.

What Are Other Homeowners Saying?

Excellent
Althoff Home Services4.8
Based on 1096 reviews
Bob Rozycki
2 days 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
Gary Downing
3 days ago
I had a plumbing issue. I called and they had sent Mat out in a few hours and he fixed it was thorough and explained the cost to me and what he was doing. I would recommend this place to anyone needing plumbing service.
Karen Pieroni
4 days ago
I've never had such good service as Althoff brings. Exceeds my expectations every visit.
Donna Borman
7 days ago
We have been using Althoff Home Services for ALL of our plumbing, HVAC and electrical needs for many years now (after 2 bad experiences with another company). Althoff is a family owned & operated company and it shows in their professionalism, kind and courteous approach and the steps they take to make sure we feel like our job is their only priority. Their pricing is fair, work is thorough and absolute top-quality! Highly recommend!
Ginda Owens
2 weeks ago
Seasonal maintenance on boiler and hydroponic heating system was done, and water heater was checked and flushed. Excellent service. Thank you Brian!
Stash Stanton
2 weeks ago
On time arrival for a new Trane furnace installation. Technicians were polite, friendly and did an expedient professional installation. Cleaned up before they left. I was impressed as expected with Althoff Ind. installers. Thank you for a job well done!
Lyn Cablk
1 month 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
1 month 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
1 month ago
AC tune-up - very thorough.
Ouzelfalls
1 month 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
1 month 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
1 month 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
1 month 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
1 month 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.
Mark Paszkiet
2 months ago
HVAC check-up
Jackie Dugger
2 months 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
2 months 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
3 months ago
Very good explanation of what needs more immediate attention if anything, or what could wait.
Becki Parsons
3 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.
3 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
3 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
3 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!!!
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