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LANZ FURNACE & FIREPLACE

Heating, Cooling & Fireplace Services in Monroe, WI Since 1887

Trusted heating, cooling, and fireplace services from a team that treats you like family—right here in Monroe, WI and beyond.

Kevin H.

Scott W.

Corn K.

Dennis M.

Denise E.

Jaine W.

Scott G.

Michael D.

Mary L.

Robert C.

Kim M.

Julie W.

Alexa A.

Paul G.

Heather F.

Courtney M.

Paula D.

Trevor W.

Alyssa M.

Scott P.

Don H.

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Heating

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Cooling

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FURNACEs

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FIREPLACES

Serving Monroe Homes For Over a Century

Monroe families have trusted Lanz Furnace & Fireplace for HVAC services since 1887 — furnace repair, air conditioning, and fireplace installation, all from a team that still lives and works right here in Monroe, WI. We're one of Wisconsin's longest-running heating and cooling companies, and we're still family-owned.

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HVAC Services in Monroe, WI

Furnace repair, AC service, maintenance plans, and full system installations — we work on all brands and handle everything from a single repair call to a whole-home HVAC upgrade. Indoor air quality services also available.

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HVAC PRODUCTS

Looking for dependable HVAC systems? As a Lennox Premier Dealer, we offer some of the best high-efficiency units on the market.



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FIREPLACES

Bring comfort and charm into your space with gas, wood, or electric fireplaces. We’ll help you find the perfect fit and handle the install with care.



Monroe's Lennox Premier Dealer — Recognized for 100 Years of Service

As one of Wisconsin's older continuously operating HVAC companies, this recognition means the world to us. It celebrates our long-standing commitment to quality, craftsmanship, and taking care of our Monroe and Green County neighbors the right way - the way we've done since 1887. A huge thank‑you to our customers for trusting our family with your home comfort. And thank you to Lennox for recognizing our dedication to exceptional service and installation. Here's to many more years of keeping our community comfortable and warm!

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What Monroe Homeowners Can Count On

We don't cut corners, and we don't treat customers like numbers. Every call gets a straight answer, every job gets done right, and we're available 365 days a year when something goes wrong — because heating and cooling failures don't wait for business hours.

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Family-owned and operating in Monroe continuously since 1887
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Emergency HVAC service available every day of the year, all brands
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Free estimates on new Lennox system installations; financing available
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Clean, professional installs — no mess left behind
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Current owners David and Carissa Kammerer are Monroe residents

Save on Comfort

Up to $2,000 in Rebates

Upgrade to the Lennox® Ultimate Comfort System and save big—or qualified buyers can enjoy no payments and no interest for 12 months. Let’s help you get the best system for your home and budget.