AC Repair in Greater Milwaukee Area
Fast AC repair with trusted service. Over the Moon fixes cooling issues quickly and backs work with a free second opinion and a 100% satisfaction promise. Serving the Greater Milwaukee Area, including Milwaukee, Waukesha, and Wauwatosa. Licensed HVAC team with a 4.7 rating from 1,354 reviews. Get ahead of the first summer heat wave and book now for priority scheduling.
How our prices compare.
What can you expect to pay?
How customers feel about the bill, in their words.
Post-job survey · verified customers
Why Choose Us
Licensed HVAC pros
Wisconsin HVAC License #1453339
White-glove care
Floor protectors, shoe covers, and home-safe practices
Free second opinions
On major HVAC repairs for clear, confident choices
Background-checked techs
Background-checked, drug-tested, and thoroughly trained
Trusted by neighbors
4.7 rating from 1,354 reviews
What Our Customers Say
professionalism
“He explained everything and had our unit working in no time.”
speed
“Amazing job getting our AC back up and running just in time for the hot weather.”
quality
“Prompt, professional, and highly skilled repairs for our rental property.”
Your AC can run but not cool due to a dirty air filter, low refrigerant, or a frozen evaporator coil. Thermostat malfunctions, electrical issues, or mechanical wear can also cut cooling. In Waukesha and Milwaukee homes, our techs find the root cause and often fix it on the spot since we carry parts on our truck. Regular tune-ups (like our $99 AC Tune-Up; call for details) help prevent these problems.
Quick checks:
- Set thermostat to Cool and lower the setpoint.
- Replace a dirty filter.
- Clear debris from the outdoor unit; shut off the system if coils are iced.
Updated: 2025-12-24
Need help in Eagle, WI? Call (262) 297-3186 or book online.
"He had our unit working in no time." — Steve G.
AC running but not cooling properly is usually caused by a dirty air filter or low refrigerant that blocks heat transfer. The most common first culprit is a clogged filter that chokes airflow and can let the indoor coil freeze. Our technicians can also find thermostat issues, electrical faults, or mechanical wear that keep the system running without delivering cold air, and we carry parts on our trucks to fix most issues on the spot after you approve the work. We solve these problems every week for homeowners in and around Wales with clear diagnostics and upfront communication.
Try these quick checks before you call:
- Replace a dirty air filter and make sure all vents are open.
- Confirm the thermostat is set to Cool and a temperature below room temp.
- Look for ice on refrigerant lines; if you see frost, turn the AC off to thaw.
- Check the breaker; if it trips again, stop using the unit and schedule service. A short, safe shutdown prevents compressor damage and speeds an accurate repair.
Updated: 2026-06-30
Need help in Wales, WI? Call (262) 297-3186 or book online.
If your AC blows warm air on and off, start with simple checks, then schedule a diagnostic if it persists. This often ties to airflow, thermostat, electrical, or refrigerant issues Over the Moon repairs daily.
- Set thermostat to Cool, 68–75°F, fan Auto.
- Replace a dirty filter and clear supply/return vents.
- Check the breaker and outdoor unit disconnect.
- If coils are iced, turn system Off 30–60 minutes, then run Fan.
We repair all brands, carry parts on our trucks, and provide upfront pricing. Common fixes include clogged drain lines, frozen coils, or low refrigerant. Service available in Waukesha and Milwaukee.
Updated: 2025-12-24
Need help in Waukesha, WI? Call (262) 297-3186 or book online.
"They are professional, honest and truly great people." — Steve G.
The most common AC repair issue homeowners face is a dirty or clogged air filter that restricts airflow and overworks the system. When filters go unchanged, dust loads up, the blower struggles, and efficiency drops, which can snowball into bigger problems if ignored. Start by replacing the filter and making sure the return grilles aren’t blocked; if cooling doesn’t recover, a technician should check for related issues like airflow imbalances or refrigerant problems. Our team frequently sees this during summer calls in Menomonee Falls homes. A small change in static pressure from a plugged filter can make an otherwise healthy AC look “broken.”
Watch for clear signs you should call:
- Weak airflow at vents or rooms that never quite cool
- Much longer run times and rising energy bills
- Ice forming on the refrigerant line or coil
- AC shutting off and back on frequently
Turn the AC off if you see ice on the lines to prevent compressor damage.
Updated: 2026-06-09
Need help in Menomonee Falls, WI? Call (262) 297-3186 or book online. "He explained everything about the HVAC system and he had our unit working in no time." — Steve G.
AC repair for a typical home unit is confirmed after an in-home diagnostic because pricing varies by the part, labor, and system condition. We offer a free diagnostic with any repair, so you see and approve the price before work starts. Our team regularly serves the Elm Grove area and stocks common parts to finish many fixes in one visit. If a major component fails or breakdowns repeat, we’ll review repair versus replacement and provide a free second opinion on major HVAC repairs.
Common cost drivers include:
- Refrigerant leak find-and-fix before any recharge.
- Failed capacitors, contactors, or blower motors.
- Thermostat or control board faults.
- Clogged drain lines or frozen coils.
A seasonal $99 AC Tune-Up helps prevent surprise repairs and keeps costs predictable.
Updated: 2026-09-01
Need help in Elm Grove, WI? Call (262) 297-3186 or book online. They are professional, honest and truly great people. — Steve G.
Compressor replacement cost varies by system and is confirmed after an on-site diagnosis. We provide upfront, honest pricing once we inspect your unit. Factors include AC make/model and tonnage, refrigerant type, warranty coverage, and access to the outdoor unit. Our technicians can repair any brand. We carry parts on our trucks to fix most issues the same day. You get a free diagnostic with any repair and a free second opinion on major repairs. Service available in Waukesha and Milwaukee.
Updated: 2025-12-24
Need help in Eagle, WI? Call (262) 297-3186 or book online.
"They are professional, honest and truly great people." — Steve G.
Still have questions?
Have questions or need service? Contact our team today to discuss your needs, request a quote, or schedule an appointment.
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