Heating Services in Monroe, WI
Furnace Repair & Heating Services for Monroe and Green County
When winter hits in Monroe, you need a heating company you can reach — and one that actually shows up. Lanz Furnace & Fireplace has provided furnace repair, furnace maintenance, and full heating system installations across Green County since 1887. We work on all makes and models, and we offer 365-day emergency heating service with no after-hours runaround.

We serve homeowners in Monroe, Monticello, New Glarus, Brodhead, and throughout Green County — including Albany, Argyle, Blanchardville, Browntown, and South Wayne.
Your Local Heating Experts Since 1887
If you've been searching for furnace repair in Monroe, WI, a heating company in Green County, or a trusted HVAC maintenance provider near you, you've found the right place. We've been answering those calls — and keeping furnaces running through Wisconsin winters — for over 135 years.
No Heat? We're Available 365 Days a Year.
A furnace failure in January doesn't wait for Monday morning. Lanz Furnace & Fireplace provides emergency heating service every day of the year — including weekends and holidays — for all furnace brands and models, not just the ones we sell. If your heat goes out, call us.
Our Heating Services
Furnace Repair in Monroe, WI
Is your furnace blowing cold air, making strange noises, or not turning on at all? Our technicians assess the problem quickly, walk you through your options honestly, and repair all furnace makes and models. We'll tell you upfront whether a repair makes sense — or whether replacement is the smarter call.
Common signs you may need repair:
- Uneven heating across rooms
- Higher-than-usual energy bills
- Furnace cycling on and off too often
- No heat or weak airflow
- Unusual smells or noises
Furnace Maintenance & Tune-Ups
A furnace tune-up once a year is one of the most cost-effective things a Monroe homeowner can do before winter sets in. Our maintenance visits include a full inspection, cleaning, and performance check — catching small issues before they strand you without heat. Regular furnace maintenance also keeps your system running at peak efficiency, which shows up on your monthly energy bill.
Benefits of routine furnace maintenance:
- Improved efficiency and airflow
- Fewer unexpected breakdowns
- Longer furnace lifespan
- Better indoor air quality
- Peace of mind all winter long
Furnace Installation & Replacement
If your furnace is 15 or more years old, constantly breaking down, or struggling to heat your home evenly, it may be time to replace it rather than repair it. We'll give you an honest assessment and a free estimate on a new Lennox heating system — high-efficiency units built for Wisconsin winters, with financing available for qualified customers.
We’ll help you choose a system that’s:
- Sized right for your home
- Energy-efficient and reliable
- Eligible for rebates or promotions
- Backed by expert installation and support
Hydronic Heating Systems for Monroe Homes
Hydronic heating uses hot water circulated through pipes or radiant floor systems to heat your home — delivering even, consistent warmth without the forced air drafts that come with traditional furnace systems. It's a strong option for new construction, additions, or homeowners who want a quieter, more comfortable heating alternative.

Lanz Furnace & Fireplace installs and services hydronic heating systems for homes throughout Green County. If you're considering hydronic heat as part of a new build or renovation, contact us to discuss whether it's the right fit for your project.
Schedule Heating Service in Monroe, WI
Whether you need a furnace repaired, tuned up, or replaced, our team is ready. Lanz Furnace & Fireplace has been the heating company Green County homeowners call first since 1887 — and we'd like to earn that from you too.
