About Us
Since 1961, Althoff Home Services has proudly served the Crystal Lake community as a trusted, family-owned HVAC company. Founded by Jim Althoff, our legacy is built on integrity, technical expertise, and a passion for helping homeowners feel comfortable where they live.
What began as a small, local operation has grown into a full-service home solutions provider offering HVAC, plumbing, electrical, and more. We stand behind every job with a 100% satisfaction guarantee and a team of licensed, NATE-certified professionals who are committed to delivering real solutions, not just temporary fixes. At Althoff Home Services, you’re not just a customer—you’re family.
Backed by more than 60 years of doing things right. Hand it off to Althoff!
Our Mission statement: "To prevent and reduce household disruptions through the pursuit of intentional service by exceptional people."

Honor Our Commitments – We lead with integrity, owning our responsibilities and ensuring every task is fully completed and communicated.
Genuine "Want to Help" Attitude – We step in without being asked, always looking for ways to support customers and teammates.
Exceed Expectations – We aim higher than simply getting the job done by creating exceptional, lasting impressions that reflect our dedication to excellence.
Be Resourceful – We tackle challenges head-on, staying persistent even when solutions aren’t obvious..
Own the Outcome – We take complete responsibility for our work, recognizing that quality is a choice.
Lead Yourself – By taking responsibility for your actions, growth, and goals, you create the habits and mindset needed for long-term success.
Positive Mental Attitude – A positive outlook turns setbacks into opportunities and inspires others through solution-focused thinking and gratitude.
Embrace Change – By welcoming change, we evolve personally and professionally, unlocking our true potential.
Balance – We support healthy habits and open dialogue so team members can thrive in work and life.
Attract, Develop, and Retain the Best People – We hire individuals who reflect our values and invest in their growth with ongoing training, recognition, and a supportive work environment.
Remain Curious – Lifelong learning drives innovation. We challenge ourselves to explore new ideas and continuously evolve.
Consider the Repercussions – We make thoughtful, strategic decisions by weighing outcomes, collaborating, and adjusting when needed.
Responsibility – Through accountability and leadership by example, we maintain a culture of safety and excellence.
Have Fun and Celebrate the Wins – We bring energy and enjoyment to our work, recognizing and celebrating achievements to foster connection and creativity.
Treat Each Other With Respect and Dignity – We approach all communication with empathy and professionalism, using honest dialogue to strengthen trust and collaboration.
Community Involvement – We actively support and engage with our community—because our customers are also our neighbors, friends, and family.
At Althoff Home Services, our mission is to deliver more than just expert home services—we deliver confidence, comfort, and peace of mind. Every time we arrive at your home, it’s a promise fulfilled: to show up with integrity, to solve problems completely, and to leave things better than we found them. We don’t settle for "good enough." We pursue excellence with every service call, every repair, every installation. We’re proud to be the team you can trust when it matters most—because your home deserves more than a quick fix. It deserves a partner who owns the outcome and gets it right.
With Althoff, Good Enough Isn’t Good Enough. We work hard to wow our customers and get things done the right way, every time.

We work where we live, and our customers are not only our clients, but our neighbors, friends and family. Community involvement fosters connection, purpose, and growth. By actively participating in and contributing to our community, we build meaningful relationships, create positive changes, and gain a deeper understanding of the world we live in. It strengthens our collaborations, empathy, and sense of belonging, both personally and professionally. Engaging with our community not only enhances the lives of our customers, but also enriches our own team’s lives, fostering a culture of support, shared success, and lasting impact.




