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Althoff Home Services

4.8 (1,070 reviews) via Google · checked Jun 25, 2026 Crystal Lake, Illinois

8001 S Illinois Rte 31, Crystal Lake, IL 60014, USA

+1 815-455-7000
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Althoff Home Services is a trusted provider of comprehensive HVAC solutions in Crystal Lake, Illinois. We specialize in delivering energy-efficient options designed to enhance home comfort while reducing utility costs for our clients. Our dedicated team is committed to offering reliable service and expert guidance for all your heating, ventilation, and air conditioning needs. We pride ourselves on our professional approach and our ability to provide effective, long-lasting solutions. For quality HVAC service focused on efficiency and customer satisfaction, residents of Crystal Lake can depend on Althoff Home Services.

Rating

4.8★

1,070 reviews

Right now

Closed

local time

Local market — Crystal Lake

HVAC pros here

18

Have a website

89%

Cooling demand

621

Heating demand

7,027

Cooling/heating demand = annual degree days (NOAA). Electricity = state residential average (EIA).

Business hours

Closed now
Monday
7:00 AM – 5:00 PM
Tuesday
7:00 AM – 5:00 PM
Wednesday
7:00 AM – 5:00 PM
Thursday (today)
7:00 AM – 5:00 PM
Friday
7:00 AM – 5:00 PM

Hours are provided by the business or public sources and shown in the local time zone. Please call to confirm before visiting.

Services Offered

Energy Efficient Solutions in Crystal Lake

Service Area

Crystal Lake, Illinois All of Illinois

Location

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This business also has a 4.8★ rating from 1,070 Google reviews.

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