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Ductless · cold-climate heat pumps · multi-zone
Ductless mini-splits and heat pumps in Milwaukee
For the bungalow with no ducts, the 85-degree attic bedroom, the addition the furnace was never sized for, or the upper flat: cold-climate heat pumps that heat efficiently below zero and cool all summer.
★ 4.9 on Google · 440+ reviews | BBB A+ Accredited | Wisconsin-registered HVAC contractor | Veteran-owned | Since 2014
Flat-rate price first
You approve the number before work starts
24/7 emergency line
Rings Mike’s cell, nights and weekends
Free replacement estimates
Written proposal with options, same day
Lennox & Rheem dealer
Every brand serviced and repaired
Where a mini-split is the right answer
A ductless system puts a quiet indoor unit in the rooms that need it and an outdoor heat pump on the wall or a pad, connected by a small line set. No ductwork, no lost closet space, no drafty window units. It is the best fit for boiler-heated homes that want air conditioning, finished attics and basements, additions, sunrooms, garages and workshops, and duplex flats that need their own control.
- Single-zone systems for one room, multi-zone systems for a whole house
- Wall, ceiling-cassette and floor-mount indoor units to suit the room
- Cold-climate models rated to keep heating well below zero, with gas backup where it makes sense
- We size and install systems from leading manufacturers including Lennox, Rheem and Mitsubishi Electric, and service every brand
Installed clean, sized right
The difference between a mini-split you love and one you regret is the install: the right capacity for the room, line sets routed and covered neatly, condensate drained properly, electrical done to code and the system commissioned with the manufacturer’s procedure, not just plugged in. We do it that way and we photograph the work.
- Free in-home estimate with a written, zone-by-zone proposal
- Permit and inspection included; line-set covers so it looks finished, not bolted on
- Focus on Energy instant discounts on qualifying heat pumps; we check your exact model before you buy
- 0% APR for 18 months through Marine Credit Union on qualifying installs, on approved credit, no down payment, 18 equal monthly payments
Mini-split repair and cleaning
We repair every brand: sensors, boards, fan motors, refrigerant leaks and communication faults. A deep cleaning of the indoor coil and blower wheel every couple of years keeps the unit quiet, efficient and free of the musty smell that dirty mini-splits develop.
Recent ductless jobs
Photos from our own jobs, not stock images.
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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What it costs
- Service call (diagnosis): $99 weekdays 7 a.m. to 5 p.m.; $179 nights, weekends and holidays
- Repairs: flat-rate, approved before work starts, guaranteed 1 year parts and labor
- Deep cleaning: ask for current pricing
- Installation estimate: free, in writing
- New system: 0% APR for 18 months on qualifying installs through Marine Credit Union, no down payment, 18 equal monthly payments; rebates on qualifying heat pumps
- Milwaukee-area average, single-zone ductless: $3,200 to $7,500 installed (price guide)
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.
Specials, financing and rebates
Comfort you can afford, all year.
Everyday offers with no expiration date. Mention the one you want when you book; details are on the Specials page.
$89
Precision Tune-Up
Furnace or AC. A full safety and efficiency check before the season hits, with a written report of what we found. Book it online.
$500 off
A new furnace or AC install
Lennox and Rheem high-efficiency systems, installed to code and permitted when required, with our 10-year parts and labor warranty on installs registered with the manufacturer.
$1,000 off
Furnace + AC bundle
Replace both at once and save $1,000 instantly on a qualifying high-efficiency furnace and air conditioner package.
0% APR for 18 months
Through Marine Credit Union on qualifying installs, on approved credit; no down payment, 18 equal monthly payments. Wells Fargo and our in-house plan are also available.
Already have a replacement quote? Get a free second opinion.
We will give you our own written replacement estimate, free. If we think a repair makes more sense than a new system, we will tell you.
Never think about a tune-up again: join the A-1 Comfort Club.
A yearly maintenance visit for each system and priority on no-heat and no-cool days, plus 15% to 20% off repairs on the higher plans. From $150 a year for one system.
Why Milwaukee calls A-1
Big-company standards. Local-shop accountability.
Flat-rate pricing, quoted first
You approve the number before a tool comes off the truck. No hourly surprises, no upselling.
24/7, and no call center
After-hours calls ring Mike’s cell, not a call center. If he is on another call, text or leave a message and you hear back quickly.
Authorized Lennox and Rheem dealer
Factory-backed equipment and warranties, and we service every brand you already own: Carrier, Trane, Goodman, York, Bosch, Mitsubishi and more.
Repairs guaranteed 1 year, installs 10
Every repair is guaranteed for one year, parts and labor. New Lennox and Rheem installs registered with the manufacturer carry a 10-year parts and labor warranty, with limited lifetime heat exchanger coverage on select models.
State-registered, veteran-owned
Wisconsin Registered HVAC Contractor #1304500, BBB A+ accredited, NATE-certified technicians, and a crew of eight with 115+ years in the trade. One shop in South Milwaukee since 2014.
4.9 stars from 440+ neighbors
Every review is public, including the critical ones, and we reply to them. Judge us by the whole record.
Good to know
Frequently asked questions
Do heat pumps really work in Milwaukee winters?
Modern cold-climate heat pumps keep producing heat well below zero, though their output drops as the temperature falls. In most Milwaukee homes we design them to carry the house most of the winter with the existing furnace or boiler as backup on the coldest nights, which is the most economical setup.
How many zones do I need?
One indoor unit per space you want to control separately. A single-zone system handles one room; a multi-zone outdoor unit can run two to five indoor heads. We walk the house with you and size each zone by its load, not by guesswork.
What rebates are available for a mini-split or heat pump?
For customers of participating Wisconsin utilities, Focus on Energy offers instant discounts on heat pumps that meet its efficiency tiers: participating distributors pay them and the contractor passes them through, so the discount comes off the invoice. We check whether your exact mini-split model is on its qualified list. Income-qualified households may also qualify for the state’s IRA Home Energy Rebates, but most of those must go through an IRA Registered Contractor, so ask any contractor, us included, before you sign. Amounts change; we check what applies to your equipment before you buy.
Can a mini-split replace my furnace entirely?
Sometimes, with a cold-climate system sized for the whole load and electric or gas backup. More often the best value is a hybrid: the heat pump does most of the work and the furnace covers the deep-freeze nights. We will show you both options.
How much does a ductless mini-split cost in Milwaukee?
A single-zone ductless system typically runs $3,200 to $7,500 installed in the Milwaukee area, and a whole-house cold-climate heat pump $7,500 to $14,500, according to 2026 Milwaukee figures from HVAC Project Cost, a cost-estimate website. Multi-zone systems cost more. Those are area averages, not our quotes, and rebates can lower the net cost. Sources are in our Milwaukee HVAC price guide.
Are your repairs guaranteed?
Yes. Every repair is guaranteed for one year, parts and labor. If something we fixed fails within that year, call us and we make it right at no charge.
Reviews
What install customers say
Word-for-word excerpts from Google reviews, names shortened. Overall: 4.9 stars from 440+ reviews.
5 out of 5 stars
“From the quote to the install, everything was smooth, fast, and professional. Mike got me an incredible deal on top-of-the-line equipment, had a three-person crew out in no time, and the whole installation was done before I knew it.”
Sara M. · Installation · Google review
5 out of 5 stars
“Respectful of property. Installation in a timely manner. The units themselves are super quiet. Extremely happy with this purchase. Great part and labor warranty.”
Jeffery T. · Installation · Google review
5 out of 5 stars
“They were quick, professional, and paid great attention to detail throughout the entire process. My AC and heater were replaced efficiently, and everything was done with care and quality workmanship.”
Michaela M. · Furnace and 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: