Heating

Schedule This Important Heating Service Today! Here’s Why

Your furnace has a big, important job at your house. It keeps your home and family comfortably warm all winter long. But...

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Indoor Air Quality

Why You Should Choose a Whole-House Air Purifier

When you think about air quality, you might think about the mold and pollen levels outside. You can’t do much to improve...

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Air Conditioning

The Refrigerant Misconception You Don’t Want to Believe

Most air conditioners use refrigerant to cool your home. With temperatures dropping, you may not be thinking much about your AC’s cooling function, but it’s still important, even in fall and winter. Some homeowners think they know what refrigerant is and how it works. Others know that their AC has refrigerant, but don’t know its function inside the AC unit.  Cooling your home is only possible because of refrigerant in your HVAC unit. Your AC unit functions differently when you...

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Electrical

Is It Time to Upgrade Your Electrical Panel? 

Your electrical panel plays a big part in how efficient your home is when it comes to energy use. Some people also...

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Air Conditioning

AC Repair needs to Be Aware Of

Fall is around the corner and your AC will get some much-needed rest from the stress of cooling your house through the...

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Announcement

Althoff Voted “Best of the Fox” for 2022—A Clean Sweep

We have great news: Althoff Residential has been voted 2022 Best in House & Home Services for HVAC, Plumbing AND Electrical in McHenry County in the Northwest Herald Readers’ Choice Awards. This was a clean sweep of every category we were eligible for.  Although we aren’t surprised at receiving this honor—we work hard every day to provide the best service possible to all our customers—we are immensely grateful to all of you who voted for us. We wouldn’t be here...

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Air Conditioning

Sounds You Don’t Want Your AC Making

One day our AC units may be high-tech enough to alert you of problems early on. We already have smart thermostats that help you plan ahead and with programmable settings so it’s definitely possible. But until then, we have to identify signs that something is wrong with an AC unit.  When you pay attention to warning sounds from your AC, you can stay ahead of AC repairs in Crystal Lake, IL. By knowing what to listen for, and taking proactive...

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Plumbing

Signs You May Have a Plumbing Leak

Leaks are probably pretty high on your list of things you don’t want to have happen. While some household problems have easy...

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Air Conditioning

Easy Ways to Save Money on Your AC

On a muggy summer day, air conditioning in Crystal Lake, IL is invaluable for keeping your home at a comfortable temperature. However,...

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What Are Other Homeowners Saying?

Excellent
Althoff Home Services4.8
Based on 1074 reviews
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
5 days ago
Super responsive, communicative, informative, friendly, competitive and got the job done well. Highly recommended.
Renee Lucas
5 days ago
Great experience the air-conditioning was fixed quickly and Brian did a great job
L
6 days 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
1 week ago
Very efficiently did the maintenance. Couldn’t have asked for more. Very satisfied as usual.
Richard Elke
1 week ago
Scott was very professional. He explained all of our options and costs. He inspected our sub pump.
Renee Diak-Witek
2 weeks ago
Very friendly and knowledgeable about anything I needed to know.
Steve Kolasa
2 weeks ago
Quality service and work !!! Clean and very informative about our AC and Furnace !!! Alex did a fantastic job !!!!
Catherine A
2 weeks ago
Scott was prompt, very pleasant and did a great job!
Gwen
3 weeks 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
3 weeks 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
3 weeks ago
Scott White is fantastic
Jim Andrulis
3 weeks 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.
Cathy Wilkins
4 weeks ago
We had our A/C inspection today. Nick A on the Althoff Home Services A/C team arrived and checked everything inside and out. Nick was very courteous, polite, friendly and thorough. We were very pleased with his professionalism. This service is included in our annual membership. The office staff and technicians at Althoff Home Services are the reason we have had them servicing our homes since 2002.
Greg M.
4 weeks 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.
April Strong
4 weeks ago
He's friendly and efficient. The perfect combination!
Gary Newland
1 month ago
I appreciate the attention and professionalism. Thank you!
Mandy Bone
1 month 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.
Had difficult bulbs to replace and find they did it a short period of time and the installation was flawless
David Schaak
2 months ago
Very good and informative worker. You could tell that he enjoyed the work.
Melissa Mikos
2 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.
Ouzelfalls
2 months 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.
Chris Warren
2 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!
John Ruder
2 months ago
Always a pleasant experience when Todd comes for the annual inspection of the ROZ Valve. Polite, good conversation, explains what’s being done.
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