Mark’s Mini Splits
HVAC contractor in Seattle, WA.
In Mark’s Mini Splits’ own words
Mark's Mini Splits is Seattle's trusted ductless heat pump specialist, delivering efficient, reliable heating and cooling for homes, cabins, ADUs, additions, and any space without existing ductwork. We handle new construction and remodel installations from start to finish, with careful sizing, placement, and clean workmanship on every job, whether it's a single wall-mounted unit or a full multi-zone system. Straightforward pricing, honest recommendations, and quality work you can count on. Serving Seattle and the surrounding area. Call today to schedule your ductless heat pump installation or get a free quote.
- Trade
- HVAC contractor
- Business address
- 4527 Rainier Ave S, Seattle, WA 98118
- Telephone
- (206) 752-2869
- Website
- marksminisplits.com
- Hours
-
- MondayOpen 24 Hours
- TuesdayOpen 24 Hours
- WednesdayOpen 24 Hours
- ThursdayOpen 24 Hours
- FridayOpen 24 Hours
- SaturdayOpen 24 Hours
- SundayClosed
From the business's Google listing, checked Oct 2026
- Register
- WA register
Recorded as supplied and as found in public sources. This register makes no credential or quality claim about any business; check license status with the state board.
Google Reviews
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Mark and his team were really great. They were professional, knowledgeable, and incredibly persistent in getting my system back up and running. The team stayed late to make sure the job was completed and went above and beyond to track down the specialized parts needed for a unique set of problems, even sourcing parts from around the country. Their dedication, communication, and willingness to do whatever it took to solve the issue really stood out. I truly appreciate the extra effort and would highly recommend this team to anyone needing heating system repairs.
Nick R.
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I can’t recommend this company highly enough. From the first call they were knowledgeable, communicative, and genuinely personable. They got me scheduled last minute and made sure a technician came out as soon as possible, which I really appreciated. Mark was fantastic to work with, and Julio, the technician, was excellent — he answered every question and concern I had patiently and thoroughly, and did a wonderful job on the unit. The work was quick, the invoice came through promptly, and the whole experience was smooth from start to finish. If you have a mini-split, these are the people to call first. Truly impressed.
Cameron C.
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Mark is a very nice and honest guy, I found him on Google and requested a quote from his website for installing 5 split units in my house and I immediately get contacted, and he dropped by the same day to give us an estimate. His pricing is competitive (below average) vs other companies but the efficiency of work he provided was beyond good. He worked longer hours trying to finish installing all the units in my house so i can have the working AC asap... he's very easygoing and flexible to work with. I'd love to work with him for any other AC related projects like maintainance ect.
Stephy Z.
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Mark and Julio did and excellent job installing a Mitsubishi Mini Split System at my home. High quality craftsmanship and attention to detail at a great price.
Matt S.
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Today Daniel and Julio came to our house to install a mini split. They were kind and friendly, they did a very good job.
Billur B.
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Mark and his team were exceptional. I am so impressed and happy with the quality of their work and the care and attention they put into the details. I truly couldn’t be happier with the install of mini splits in my home and would highly recommend them to everyone. Mark talked me through all my questions, was competitively priced, and provided outstanding service. His entire team was great to work with and made me feel comfortable and supported the entire way. Thank you!
Priscilla U.
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Great communication and collaboration and organized and responsive!
Patrick W.
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great fast and professional
Aaron C.
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From the beginning, Mark was professional, responsive, attentive, and genuinely kind. He took the time to answer my questions, explain things clearly, and made me feel supported through the entire process. One thing that especially stood out to me was his flexibility and patience. He had already started the mini split installation when I realized I needed to pause the project because I wasn’t fully sure about a few things on our end. Even though it created a major inconvenience and required rescheduling, Mark was incredibly understanding and gracious about it. That level of professionalism and kindness meant a lot to me. Mark really listened to what I needed, worked with me instead of against me, and consistently showed up with honesty and professionalism. He’s also just enjoyable to work with, personable, respectful, and clearly someone who cares about his clients and his work. I’m very grateful I found him and would absolutely recommend him to anyone looking for mini split installation.
Beza G.
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We had a great experience with Marks Mini Splits, they did an evaluation, quick detailed quote, installed 2 separate units in 1 day. Their team is courteous and fast. Very good work. They can get any brand and reasonable pricing. We’re very happy.
Oceanicas 1.
About Mark’s Mini Splits
Ductless heat pump installation in Seattle
Mark’s Mini Splits focuses on ductless heat pump work for homes, cabins, accessory dwelling units, additions, and spaces without existing ducts. The company handles installations for new construction and remodels, from a single wall-mounted unit to multi-zone equipment.
Mark’s Mini Splits offers ducted mini-splits and heat-pump installation. It also names air conditioning, repair, maintenance, and tune-ups, along with built-in air filtration for indoor air quality.
Equipment and system work
The company says its installation work includes equipment sizing and placement, with the job carried through installation. The company works with Mitsubishi and Daikin, and it services LG ductless units in residential and light-commercial settings.
Mark’s Mini Splits is a certified Mitsubishi Diamond Dealer. The business says it works in Seattle and surrounding areas.
Rating, reviews, and hours
Reviewers most often mention communication, responsiveness, clear answers to questions, detailed estimates, installation craftsmanship, and work completed quickly; several also mention repair work, scheduling flexibility, and pricing.
The business is open 24 hours Monday through Saturday and closed Sunday. Seattle’s 1991-2020 NOAA normals show a 51.3°F mean temperature, a 59.3°F average high, and a 43.2°F average low. Per the American Community Survey in 2024, electricity heats 61.1% of Seattle housing units.
The company’s stated work ranges from a one-unit installation to larger multi-zone ductless systems.
Services, brands and warranty details come from the company's own website. Ratings, hours and reviews come from Google. Town figures come from the US Census and NOAA.
More HVAC contractors in Seattle
About Seattle
| Population | 784,777 (2025) |
|---|---|
| County | King County |
| Average yearly snowfall | 24.7 inches |
| Heating degree days | 5,181 |
| Most common heating fuel | Electricity |
Sources: U.S. Census Bureau. NOAA U.S. Climate Normals 1991-2020.