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Our promises, in writing
A-1’s guarantees: what we promise, every job, no fine print to hunt for
Every promise on this page is already how we work. We just never put them all in one place before. If something doesn’t match what we told you, call us and we’ll fix it.
★ 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
If we fix it, it’s fixed for a year
Every repair A-1 performs is guaranteed for one year, parts and labor, on any brand. If something we fixed fails within that year, call us and we make it right at no charge.
New systems carry a 10-year warranty
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.
You approve the price before we touch anything
You get a flat-rate number before any work starts, not an hourly guess. No upselling once the truck is in the driveway.
We show you what failed before we replace it
We test before we replace anything and show you the actual readings, so you see what failed and why before any part comes out.
Already have a quote? We’ll give you a second opinion free
If another company already quoted you a new system, we’ll give you our own written replacement estimate at no cost. If we think a repair makes more sense, we’ll tell you that instead.
24/7 rings a person, not a call center
After-hours calls ring Mike’s cell, not an answering service. If he’s on another call, text or leave a message and you hear back quickly.
Every review stays up, including the bad ones
We don’t hide or delete critical reviews, and we reply to them. 4.9 stars from 440-plus reviews — judge us on the whole record.
Comfort Club members get a few more
Join the A-1 Comfort Club and some guarantees get stronger: no diagnostic fee on repair calls for Comfort members and up, and Premier members never pay overtime rates on nights or weekends. The membership itself transfers if you sell your home, so the new owner can keep it going. See the Comfort Club plans.
Questions about a guarantee? Call or text 414-595-5175, any hour.
Request service
We call you back during business hours. Every repair is guaranteed for one year, parts and labor, on any brand.
Rather pick a time yourself? Book a tune-up, free estimate or repair visit online, any time of day.
By submitting you agree we may call or text you about your request. No spam, ever.
Where each one applies
- The 1-year repair guarantee covers repairs A-1 performs, on any brand
- The 10-year warranty covers new Lennox and Rheem systems A-1 installs and registers with the manufacturer
- The no-diagnostic-fee and no-overtime perks apply to active Comfort Club members on the matching tier
- Not sure if something’s covered? Call and ask — we’d rather tell you straight than bury it in fine print
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
What happens if a repair fails within the year?
Call us and we’ll make it right at no charge. Every repair we perform is guaranteed for a year, parts and labor, on any brand.
Do guarantees apply no matter who installed my equipment?
The 1-year repair guarantee applies to repairs A-1 performs, on any brand you own. The 10-year install warranty applies to new Lennox or Rheem systems A-1 installs and registers with the manufacturer.
Will I get a surprise bill after the work starts?
No. You approve a flat-rate price before any work begins, and that number doesn’t change once you say yes.
I already have a quote for a new system. Can you look at it?
Yes. We’ll give you our own written replacement estimate for free, and if we think a repair is the smarter move, we’ll tell you that instead.
Are Comfort Club guarantees different from what everyone gets?
Some are member-only: no diagnostic fee on repair calls for Comfort members and up, and no overtime charge on nights and weekends for Premier members. See the Comfort Club plans.
What if I leave a bad review?
It stays up. Every Google review is public, including the critical ones, and we reply to them — judge us by the whole record, not a curated page.
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
“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
“…without trying to up-charge me for other parts. Incredible energy and took the time to explain next steps, reasoning, and terminology.”
Nathan D. · Service call · Google review
5 out of 5 stars
“He explained everything he was doing along the way as we coordinated while out of town.”
Kelly R. · Furnace and AC · 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: