HVAC Services in Greater Seattle | Heat Pumps & Cooling

Heating & Cooling

Furnaces — explore repair or replacement when heat becomes uneven, the system cycles frequently, or reliability declines.
Air Conditioning — plan cooling around your home's layout, existing ducts, and warm-weather comfort needs.
Heat Pumps & Mini-Splits — compare ducted whole-home systems with ductless options for homes without ducts, additions, and individual rooms.
Dual-Fuel Options — discuss whether combining a heat pump with an existing furnace fits your home, energy costs, and cold-weather needs.

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Maintenance & Repair

System Problems — tell us about weak airflow, unusual sounds, inconsistent temperatures, or a system that will not start. Call to confirm appointment availability.
Seasonal Care — plan maintenance around your equipment's requirements, operating hours, and heating and cooling seasons.
Repair or Replace? — weigh the diagnosis, equipment age, repair cost, and expected performance before choosing a next step. Coverage depends on the written warranty.

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Indoor Air Quality

Filtration — choose filters compatible with your system and its airflow, with attention to dust, pet dander, and seasonal smoke.
Ventilation — discuss fresh-air needs and whether an energy recovery ventilator suits your home.
Moisture & Humidity — identify comfort concerns and consider ventilation or humidity-control options alongside the underlying moisture source.
Practical Guidance — review filter care and system operation. Filtration supplements, but does not replace, source control and public-health guidance.

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Smart Home & Efficiency

Smart Controls — select a thermostat compatible with your equipment and discuss schedules, zoning, and straightforward daily operation.
Ductwork & Airflow — consider leaks, restricted returns, and room-to-room temperature differences when planning an upgrade.
System Planning — account for heating and cooling loads, electrical requirements, equipment placement, and the condition of existing ducts.

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Plan Your Upgrade

Project Budget — compare equipment, installation, ductwork, electrical work, and expected operating costs. Ask about current payment options and written terms.
Ongoing Care — understand filter changes, seasonal maintenance, and the written equipment and labor warranty before making your decision.
Rebates & Incentives — check current utility programs before purchase. Eligibility depends on your address, equipment, existing heat source, and program rules; no rebate is guaranteed.

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what our clients say

Feedback from Mogovolt customers.

These reviews include Mogovolt electrical projects and are not exclusively HVAC reviews.

    
 
 
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   Michael T 
 
 
 
 Trustindex verifies that the original source of the review is Google. They, listened to our needs, educated us about the latest technology and delivered!
  
 
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   Peter S 
 
 
 
 Trustindex verifies that the original source of the review is Google. Crew was very considerate
  
 
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   Kay W 
 
 
 
 Trustindex verifies that the original source of the review is Google. Daniel and Adrian came out to check on what I was convinced was a wiring issue with a light fixture. On the way into my house, Daniel noticed that my porch gate was wonky, and he stopped and fixed it in 5 minutes. This gate hasn't hung or shut correctly since it was built. It's perfect now.
This tells me the MogoVolt guys know systems and mechanics. You can connect two wires but knowing how to set everything up correctly is valuable.
The light fixture "issue" turned out to be dead lightbulbs (LED Edison bulbs, which I was previously unfamiliar with). I laughed at myself but they were very kind and didn't disparage my lack of knowledge.
I will definitely hire Daniel and Adrian and MogoVolt team when I need an electrician.
  
 
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   Brandon J 
 
 
 
 Trustindex verifies that the original source of the review is Google. Panel upgrade went well
  
 
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   Aaron G 
 
 
 
 Trustindex verifies that the original source of the review is Google. Mogovolt recently completed a whole-home electrical rewire and 200-amp panel replacement for us. Dealing with the knob and tube wiring in a 1940s home was a big concern for us, but they were professional and easy to work with from the start.

What stood out most was their adaptability. We are planning several phased renovations over the next few years, and the team was highly responsive to that approach They made adjustments to the scope of work mid-project to ensure the circuits they ran now would perfectly align with our future plans, saving us rework down the line. Even the city inspector was complimenting the neatness and quality of their work during the final sign-off. A reliable, professional crew that does solid work. Will definitely be hiring them again for our next projects.
  
 
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   John G 
 
 
 
 Trustindex verifies that the original source of the review is Google. Mogovolts team (Adrian and Arnell) showed up right on time and got right to work replacing our electrical panel (the old panel was 35 years old and out of spaces for additional electrical connections). Adrian and Arnell are detail oriented and always willing to answer my questions. The finished product looks & works great and power to home is restored. The panel replacement also included a ChargePoint electric car plug in, free of charge. For anyone looking for an experienced, responsive (when I called someone always answered quickly, emails and texts promptly sent to ensure work date confirmation, etc) & supportive electrician, I would recommend you call MogoVolts. They’re clearly ahead of the pack with fair pricing and complete customer support.
  
 
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   Lucas S 
 
 
 
 Trustindex verifies that the original source of the review is Google. I cannot recommend Mogovolt highly enough. Their work is top tier and the people are even better.

My wife and I hired them for a full knob and tube rewire and installation of an EV charger. Their pricing was competitive, and they provided the most thorough and honest assessment of any group we spoke with.

This was a large project, but Adrian and Antonel showed up every day, worked hard, communicated exceptionally well and kept us informed throughout the process. Adrian suggested several upgrades including recessed lighting, a low voltage TV box, and additional lighting, that were well worth it! Pricing for additions was transparent and we never felt pressured to say yes.

They also kept the house remarkably clean each day. Since we were living in the home during the project, it was important to feel comfortable with the team, and we absolutely did. I genuinely miss seeing Adrian and Antonel each day! They were a pleasure to work with. Daniel even followed up afterward to ensure everything met our expectations.

I've already recommended Mogovolt to friends and family, and will happily reach out to them for future electrical work.
  
 
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   Tess R 
 
 
 
 Trustindex verifies that the original source of the review is Google. Benjamin did a fantastic job! He was efficient, polite, and enthusiastic. He had good suggestions and clearly wanted to make sure we were happy with his work. I really appreciate how easy it was to get an appointment for a quote and then to get the work done, and the pricing seemed fair.  I highly recommend this company!
  
 
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   Lana T 
 
 
 
 Trustindex verifies that the original source of the review is Google. As a regular partner with Mogovolt at Built Square, I can’t recommend them enough.

They understand our vision and execute every detail flawlessly, always completing work on time and being readily available for any questions. Their reliability and professionalism make them an invaluable part of our projects. If you need a trustworthy electrical service, Mogovolt is the way to go!
  
 
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   John P 
 
 
 
 Trustindex verifies that the original source of the review is Google. Daniel, Beni and the team were great to work with.  They were able to assess our needs and completed the work promptly within our time frame.