HVAC reviews in Milton, Washington

Dmitry is honest, kind, professional and explained our options. He was extremely up front about the cost of everything and sized our units correctly for our square footage.

Alex and Oleg were efficient, professional, and took away all trash and debris. Their installation looks clean, precise, and quality.

We highly recommend Leo's!

Dmitriy and his associate came out, thoroughly explained our options (we've never purchased a heating system before) and were very patient as we learned all about heat pumps, gas furnaces and how they work in tandem with each other. Leo's was the only company that offered us an on-the-spot estimate, which was really impressive.

We ordered an air conditioner installation from Leo’s Heating and Cooling – and we’re very satisfied! The installer Alex did everything professionally, neatly, and quickly. He explained how to use it and gave helpful maintenance tips. Very friendly and clearly a true professional. Thank you to the company for the excellent service — we’ll definitely recommend you to friends and family!

Very professional and did a great job! exceptional service. I was especially impressed when a fuse blew on my furnace three days after the initial service. Gunner promptly showed up to repair the at no charge, demonstrating outstanding commitment and service. The fuse that blew was not associated with the furnace service! WOW!!!!!

I recently used Leo’s Heating and Cooling for a service call, and I couldn’t be more pleased with the experience. From start to finish, their team was professional, punctual, and extremely knowledgeable.

Alex was responsive, honest, and took the time to explain the issue in a way that was easy to understand. The repair was completed quickly and at a fair price—no hidden fees or unnecessary upselling, just solid, trustworthy service.

It’s rare these days to find a company that combines great workmanship with excellent customer service, but Leo’s Heating and Cooling does exactly that. Whether you need a quick fix or a full installation, I highly recommend giving them a call.

Alex and his team replaced my old furnace and did an outstanding job. The installation was clean and organized, and they took the time to explain how everything works. The new system runs great and the house heats up faster than ever. Highly recommend

Let me begin by saying Dmitry did an exceptional job installing a heat pump with a dual-fuel setup in my home. From the very first meeting, he impressed me by showing up in person and providing a clear, itemized quote—something that’s surprisingly rare in this field.

This wasn’t a simple project. My house, built in the 1980s, brought several unexpected challenges. Dmitry not only anticipated potential issues but also handled each one with confidence and expertise. His depth of knowledge and professionalism really stood out throughout the process.

Initially, the equipment didn’t work right out of the box—but this is where Dmitry truly shined. He was extremely responsive after the installation, going above and beyond to troubleshoot the issue. He even worked directly with Mitsubishi support to make sure everything functioned perfectly.

While that level of service is impressive on its own, what truly sets Dmitry apart is what he achieved with my smart thermostat. I was repeatedly told by others that I’d need to replace it and use Mitsubishi’s own model, but Dmitry found a way to get my existing thermostat working—without losing the variable-speed functionality of the system. That level of care and problem-solving is rare.

As I write this, I’m a very satisfied customer. The system is running flawlessly, and the quality of work speaks volumes. Honestly, I’m surprised Leo’s Heating and Cooling did not have a google listing and I am happy to be the first to post a review.

If you're looking for HVAC work done right the first time by someone who cares about the details and stands behind their work, I wholeheartedly recommend Dmitry and Leo’s Heating and Cooling.

Dima at Leo’s Heating and Cooling LLC was great to work with. He was professional, knowledgeable, and took the time to explain everything clearly. He showed up on time, worked efficiently, and didn’t try to upsell anything. Highly recommend Dima if you need reliable HVAC service.

I recently had Leo's Heating and Cooling install a split air conditioning system in my master bedroom, and I could not be happier with the entire experience. My main contact was Dmitriy and from the very beginning, he and his team were professional, punctual, and extremely knowledgeable. He took the time to explain different options, answered all my questions patiently, and made sure I was comfortable with the plan before starting the work.

The installation itself was smooth, efficient, and completed exactly within the promised timeline. The technicians Alex and Mark were respectful of my home, kept everything clean, and showed great attention to detail in their work. After installation, they walked me through how to use the system, offered helpful maintenance tips, and ensured everything was working perfectly before leaving.

The new system has been performing wonderfully. I also really appreciated the fair pricing and the fact that there were no hidden costs—just honest and transparent service.

Overall, Leo's Heating and Cooling exceeded my expectations in every way. If you’re looking for reliable, skilled, and customer-focused professionals for heating or cooling needs, I would highly recommend them without hesitation.

Excellent service! Oleh did a clean and efficient job installing our new system. Highly recommend.

I’ve used Dimitry and Alex’s service twice, and both times they did an amazing job. They clearly explain the issue in advance and walk you through what kind of repair is needed, so there are no surprises. Everything is very transparent, professional, and well organized. A great team you can truly trust—highly recommended!

From the start of when my heater went out, Leo's Heating And Cooling responded instantly. Dmitriy showed up with so much knowledge and compassion that I choose them for the job. Within 2 days Alex, Daniel and Oleg showed up to do the installing of my new heat pumb. Alex went over and above the work it took to get my home warmed up again. I appreciate so much all the extra effect it took to finish my job. I would highly recommend Leo's Heating And Cooling.

I had an excellent experience with Leo’s Heating and Cooling! From start to finish, the team was professional, punctual, and very knowledgeable. They quickly diagnosed the issue with my system, explained everything in a way that was easy to understand, and provided a fair and honest estimate.

The technicians worked efficiently, kept everything clean, and made sure the job was done right the first time. What really stood out was their customer service—they truly care about their clients and go the extra mile to make sure you’re comfortable and satisfied.

I would highly recommend Leo’s Heating and Cooling to anyone looking for reliable, trustworthy, and high-quality service.

Leos repaired my furnace and did an outstanding job! He was on time, professional, and explained everything clearly. The repair was quick and my system is running perfectly now. I really appreciate his honesty and quality workmanship. Highly recommend Leos for anyone needing reliable HVAC service!

Alex did an amazing job installing a ductless mini-split in my rental home. The installation was clean, professional, and completed efficiently. Thanks to his work, my tenants can now enjoy reliable, energy-efficient heating and air conditioning year-round. Highly recommend!

Our initial connection with Leo’s Heating and Cooling came from a simple inspection of our HVAC system on a house we were putting on the market. Dmitriy was so good with his communication and quick fixes to that system that we hired him to install a heat pump at our new house. Dmitriy and Alex have been highly professional, communicative and responsive.

Daniel did a great job servicing our furnace. It’s a 20 year old system that is and the end of its life and Daniel was very knowledgeable about options for repairs and replacement. He seems eager to help and clearly very experienced.

I recently had Leo’s Heating and Cooling install a new Mitsubishi heat pump in my home, and I couldn’t be happier with the experience. Dmitrii, Alex, Mark, and Oleg did an outstanding job from start to finish. They were professional, efficient, and detail-oriented, making sure everything was installed perfectly and working smoothly.

The team was courteous and respectful of my home, leaving everything clean and tidy after the installation. They also took the time to explain the system and answer all my questions, which I really appreciated.

If you’re looking for reliable, knowledgeable, and hardworking professionals, I highly recommend Leo’s Heating and Cooling. Fantastic service and top-quality work!

Had a great experience with Leo’s heating and cooling. Dimitri took time to go through the different options and pricing and guided me on the best option. Mark and Daniel did an awesome job and ensured i was well informed on each major step and all my questions were addressed during and after installation. Overall i was satisfied with the service.

Fantastic service

Timely, polite and very efficient.

Leo’s will be our Heating service in the future.

Diane (Admin) and Gunnar (Service and Sales) were great.

Immediate response upon initial call.
Gunnar was no pressure in sale (we had a furnace replacement) and he is very knowledgeable and friendly.

The Installation crew (Alex and crew) were great as well!

Our furnace ignitor failed on Friday and we now have a new furnace installed on Tuesday morning! Wow!

Thanks guys.

Leo’s Heating and Cooling was outstanding from start to finish. They were incredibly prompt, personable, and professional, which immediately put me at ease. What really stood out was the level of education they provided throughout the process. Everything was explained in a way that was clear and easy to understand, without feeling rushed or overly technical.

They took the time to work with me to make sure we identified the right part quickly, which made a huge difference in how efficiently everything was resolved. That attention to detail and willingness to collaborate is what truly sets them apart. Exceptional service all around and I would absolutely recommend them to anyone looking for a reliable and knowledgeable HVAC company.