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O & W Heating and Cooling LLC

4.9 ★★★★★ · 236 Google reviews · 24 photos
Furnace repair service · Milwaukee, WI

O & W Heating and Cooling LLC at a glance

Customers frequently cite punctual arrival, clear communication, and detailed explanations of HVAC and water heater repairs as key positives, often noting that technicians avoided unnecessary upsells. However, lower-rated reviews describe instances of missed appointments, unreturned calls, and aggressive sales tactics that pressured customers into expensive replacements rather than simple fixes.

  • Google rating: 4.9 out of 5 from 236 reviews (96% five-star).
  • Reviews on this page: 236 Google reviews (209 with written comments, 3 with photos).
  • Owner responses: the business replied to 100% of reviews.
  • Most recent review: October 17, 2026.
  • Service: Plumber serving Milwaukee, Wisconsin.

Data from Google, last updated October 25, 2026.

Photos

Customer reviews

4.9
★★★★★
236 reviews on Google
5★226
4★1
3★1
2★1
1★7

Reviews from Google, shown as published (original wording, unedited).

German Carrillo3 reviews
★★★★★

Very good 5 stars ⭐️⭐️⭐️⭐️⭐️ good prices the best 👍

  • Price assessment: Great price
  • Price: $200–400
  • Services: Install thermostat
Response from the owner · a week ago

Thank you for your feedback! We’re glad that we’ve met your expectations. We hope you stay safe and warm this winter. O&W Heating and Cooling

Review from Google · view on Google
Jason QuintanaLocal Guide · 34 reviews
★★★★★

Highly recommend O&W heating and Cooling! Omir is absolutely fantastic! Prompt, friendly, extremely knowledgeable and professional. Schedule him for routine maintenance before he books up, this guy doesn’t miss anything.Thanks Omir!

  • Price assessment: Reasonable price
  • Services: HVAC system repair, HVAC system maintenance, A/C system maintenance
Response from the owner · 2 weeks ago

Thank you, Jason for taking the time to write a review and let us know how we are doing. We greatly appreciate it. It’s wonderful to work with great customers and to have you part of our family of customers for our furnace, maintenance and AC maintenance. Please have a safe and happy holidays for you and your family. Thanks

Review from Google · view on Google
Tessia Dodds4 reviews
★★★★★

I was fit into the schedule and was able to get my sensor on my water heater replaced. Fast talker but he gave me so much information. A bit expensive but I guess you get what you pay for!

Response from the owner · 4 weeks ago

Thank you for taking the time to share your feedback. We’re glad that we were able to accommodate your schedule and complete your water heater repair promptly. We appreciate your business and value your feedback regarding the service and the cost. We hope you stay warm and safe this winter. Thank you, O&W Heating and Cooling

Review from Google · view on Google
Max WilkosLocal Guide · 40 reviews
★★★★★

Had a leaking central unit in my basement; it quickly went outside my comfort zone, so I’m glad I called when I did. Phenomenal service and education from Omer. He had a perfect mix of getting down to business and doing his work, and making sure I understood the ins-and-outs as he went along. He was very upfront about the state of my system, which definitely needed some TLC, and he was able to clearly demonstrate how and why. I could tell my AC unit was working better before he even left, and I’m genuinely breathing better after. Definitely using these guys again, and I appreciated the guidance in terms of what I should do to maintain my system between visits.

Response from the owner · 4 weeks ago

Thank you, Max greatly appreciate you taking the time for the review. Hope to work with you in the future.

Review from Google · view on Google
Jaz RodriguezLocal Guide · 111 reviews
★★★★★

I had such a great experience! I reached out with questions about the old radiators in my home because we’re currently having new flooring installed. He was extremely kind, knowledgeable, and most importantly honest. Instead of trying to sell me something I didn’t need, he explained what I had, what my best option was, and actually recommended leaving everything alone and working around it. I really appreciate a business that takes the time to help someone and gives honest advice even when there’s no money involved. That says a lot about the type of person and business you’re dealing with. I will definitely keep O & W Heating and Cooling in mind when I need HVAC work in the future. Thank you so much for your kindness and honesty! Highly recommend! 🙏❤️

Response from the owner · a month ago

Thank you for your feedback! We truly appreciate customers like you who values our expertise. Our customers satisfaction is our top priority. You can rest assure that you will be taken care of with our company. Looking forward to servicing your home again in the future. We hope you stay and warm this coming fall and winter. O&W Heating and Cooling

Review from Google · view on Google
Fran Aring1 review
★★★★★

I couldn't get the company who installed my tankless water heater to service the unit. I called O and W and Omer came the next day. The unit had a defective gasket and was leaking. Omer got us a new unit under warrenty from the manufacturer, not just a repair part. The install went great and he fixed some issues from the prior installer. I would hire him again hands down and plan to have him do the annual maintenance on the unit.

  • Price assessment: Reasonable price
  • Price: $2,000+
  • Services: Water heater installation
Response from the owner · a month ago

Thank you Fran, We are glad you loved the Rinnai tankless water heater service and replacement. We hope you loved the new proper installed Rinnai unit. We are here if you need any future service or maintenance. Thank you again and stay warm. Thanks, O & W Heating and Cooling LLC

Review from Google · view on Google
Brad Roeglin2 reviews
★★★★★

We had a new gas shut off valve for our stove installed.The installer was very personable and did the work quickly and at a reasonable price.

  • Price assessment: Reasonable price
  • Price: $200–400
Response from the owner · a month ago

Greatly appreciate you taking the time to let us know you loved the level of service. We hope to work with you again regarding any future HVAC, gas leak or water heater repair or replacement. Thank you, O & W Heating and Cooling LLC

Review from Google · view on Google
Alyssa RLocal Guide · 230 reviews
★★★★★

Had our AC unit fixed and cleaned. Omer also pointed out some other issues around our house and offered solutions. Omer took the time to educate me on caring for the HVAC. The company that installed my HVAC 7 years ago did not teach me anything about it so I had been mistreating it for years unknowingly.

Response from the owner · 2 months ago

Thank you Alyssa for taking the time to let us know how much you loved the Air conditioner repair and maintenance. We love the feed back from our customers. Have a great rest of your Summer. Thanks, O & W Heating and Cooling.

Review from Google · view on Google
Ein Weil1 review
★★★★★

We had our water heater replaced in July, and Omer did a great job! He was friendly, knowledgeable, and took the time to explain everything along the way. He also pointed out a few other issues that we had no idea about and even offered to fix them right then and there, which we really appreciated. It's hard to find someone who's both honest and thorough, and Omer definitely was. The whole experience was smooth from start to finish, and we'll absolutely be calling him again for any future HVAC needs. Highly recommend!

  • Price assessment: Reasonable price
  • Price: $2,000+
  • Services: Water heater installation
Response from the owner · 2 months ago

Greatly appreciate the Feed back Ein, happy to hear you love the level of service we did regarding the water heater replacement. Hope to continue working with you for all your HVAC and water heater needs. Have a great weekend and enjoy the rest of the summer. Thank you, O & W Heating and Cooling

Review from Google · view on Google
Francés Gonzalez6 reviews
★★★★★

El mejor gracia

Response from the owner · 3 months ago

Thank you for your feedback! We’re glad that we’ve met your expectations. We look forward to working with you in the future. We hope you stay safe and cool this summer. O&W Heating and Cooling

Review from Google · view on Google

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