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Serving Waukesha · Waukesha County
Furnace, boiler and AC repair in Waukesha, WI
From the radiator-heated homes near downtown to the newer subdivisions on the edges of the city, we service every kind of heating and cooling system Waukesha has, including older hot-water and steam boilers.
★ 4.9 on Google · 440+ reviews | BBB A+ Accredited | Wisconsin-registered HVAC contractor | Veteran-owned | Since 2014
About 30 minutes away
From our shop in South Milwaukee
Same-day in most cases
No-heat and no-cool calls get priority
Flat-rate price first
You approve the number before work starts
24/7 emergency line
Rings Mike’s cell, nights and weekends
What we see in Waukesha homes
Waukesha has a real mix: older homes near downtown from the early 1900s, mid-century ranches across the middle of the city, and newer subdivisions on the edges. Many of the older homes near downtown still heat with hot-water or steam boilers and radiators.
Mid-century ranches are often on their second or third furnace, with ductwork that was never sized for central air. In the newer subdivisions, builder-grade systems from the 1990s and 2000s are now reaching the end of their life.
What we do in Waukesha
Boiler and radiator service, repair and replacement
Furnace repair and replacement, 80% and high-efficiency
Central AC and heat pump repair and replacement
Ductless mini-splits for homes without ductwork
Water heaters, humidifiers and duct cleaning
Water heaters →
Whole-home humidifiers →
Ductwork, airflow and duct cleaning →
How we work in Waukesha
Honest diagnosis with the readings in front of you, and a flat-rate price before any work starts. Boilers and older homes are not a problem for us; new systems are sized with a load calculation, installed clean, permitted through the City of Waukesha when required, and fully tested at startup.
Emergency right now? Call or text 414-595-5175, any hour.
Request service or a free replacement estimate
We call you back during business hours. You get a flat-rate price before any work begins, and repairs are guaranteed for one year, parts and labor.
Rather pick a time yourself? Book a tune-up, free estimate or repair visit online, any time of day.
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Nearby areas we serve
The shop
3206 9th Ave, South Milwaukee, WI 53172
Installs, estimates and non-urgent repairs: Monday to Friday, 7 a.m. to 5 p.m., weekends by appointment. Emergencies: 24/7, any day.
How it works
What happens when you call A-1
1
You call or text, any hour
A person answers 414-595-5175, not a call center. We ask a few quick questions and give you a real arrival window, not a guess.
2
We find the actual problem
We test before we replace anything and show you the readings, so you can see what failed and why.
3
You approve a flat-rate price
You get the price before any work starts, with repair and replacement options in writing when both make sense. No hourly surprises.
4
We fix it, test it and clean up
Most repairs are finished on the first visit. We test the system, clean up after ourselves and explain what we did.
Good to know
Waukesha questions we hear most
Our older Waukesha home has radiators. Do you work on boilers?
Yes, hot-water and steam. We repair circulators, zone valves, vents and controls, and when a boiler is truly done we size the replacement to the radiators in the house.
How fast can you get to Waukesha?
Waukesha is about 30 minutes from our South Milwaukee shop. No-heat and no-cool calls usually get same-day service, and the emergency line is answered 24/7.
Do new furnaces and boilers qualify for rebates?
Qualifying high-efficiency furnaces, boilers and heat pumps usually qualify for a Focus on Energy instant discount, which participating distributors pass through the contractor and off the invoice. We check the current program list for your equipment before you buy.
Reviews
What our customers say
Word-for-word excerpts from Google reviews, names shortened. Overall: 4.9 stars from 440+ reviews.
5 out of 5 stars
“We had our heater break down during Milwaukee’s freezing negative-degree weather and contacted several contractors, but no one could offer same-day service. A-1 responded immediately…”
Melisa F. · No heat, evening call · Google review
5 out of 5 stars
“Called A1 to service my AC unit, Mike was very thorough and walked me through step by step what the issue was.”
Daniel P. · AC service · Google review
5 out of 5 stars
“Mike was great, helpful and efficient. We replaced the AC unit and are happy with the results. The team of installers were great too.”
Alyssa S. · AC replacement · Google review
Read them all on Google
These are a few highlights. Google shows every review, including the critical ones, and we reply to them. Judge us by the whole record.
Ready when you are: