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Demo King

Demo King is here to facilitate you with all your residential solar needs. We can provide home solar installation and maintenance to all your needs, we have it all. Either you want on-grid that are connected to the grid and offset your home’s electricity usage, grid-connected photovoltaic solar structures with battery storage to light your residence during a power outage, or off-grid solar processes that work independently of the grid and provide continuous electricity to your household.
It’s easy to find a solar installer who’ll do the job for you, but how can you tell if they’re right for your needs? Here’s the thing: most residential solar Systems Installation Services do what they do because they are in it for the money. They will be happy to sell you a system that works well enough and saves you money, but without a lot of attention to detail or quality control. They also won’t go out of their way to make sure that your system is installed correctly, which can lead to problems down the line.
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We assist Home Owners in getting their desired solar panels system to be installed on their roofs or ground-mounted solar arrays to lower their energy cost. We also provide the solution to Homeowners who have drastic experiences back in the day with the solar industry, by upgrading and repairing their existing solar system, getting it fixed, and preparing to work for them
Year Established
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Reasons Why You Should Work With Us
  1. Transparency

  2. Integrity

  3. Honesty

We deal with the Home Owners directly. You just need to provide the essential information, in order to get our Professional Consultants, provide you an efficient & effective solution for your home. As we are NABCEP certified Installer, Our Team consisting of Master Electricians & Journey men are readily available to assist out installation crew through the United States of America & they will install them at your property in a professional & timely manner 1. We provide free site inspection before installing solar. 2. Right after the Site assessment, we start processing the Designs, Permits & Interconnection approval for your project. 3. We have expert professionals for solar installation. 4. After installation, we assure your safety through the last phase of inspection & PTO

Services Offered

  • Installation
  • Financing
  • Architecture
  • Energy Auditing
  • Construction
  • Roofing
  • Electrical Contracting
  • General Contracting
  • Solar Repair & Maintenance
  • Community Solar

Our marketing staff at Demo King is committed to informing people about the advantages of adopting solar. Our solar Energy Consultants are highly professional & experienced when it comes to providing customers with cost-effective solar solutions for their residences. Our team of project managers commit themselves to overseeing the whole installation procedure from beginning to end. Our field specialists, Electricians & Technicians are trained to install solar panels in residential settings. Even after the installation, our customer support team is active 24/7 to assist the customers concerns & problem at any point.

Workmanship Warranty

25 Years


License# : 410521000418


General liability,

Worker Comp,

Commercial Auto


AC Coupling PV system
DC Coupling PV system

Industry Certifications

  • The American Solar Energy Society
  • Better Business Bureau
  • North American Board of Certified Energy Practitioners
  • Solar Washington
  • Solar Installers of Washington

What Customers Are Saying

33 reviews
Average Rating 33 review(s)
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Efficient Solar System

Demo King stand by their work. They resolved all the troubles I was facing after installing solar panels at my house. I admire their work for ensuring optimal performance of my system.

Posted by troyklinger3 on Aug 25, 2023
Choosing demo king was the best choice

When everything was finally approved, permits acquired and delivered, installation went really faster than I expected. Fred was very informative & a nice person.

Posted by Eric Adams on Aug 17, 2023
Solar work

I am impressed with their professionalism, on installation day electrician was at my site 10 minutes prior to schedule time, they are quite dedicated. Excellent job Solar pros...

Posted by mfaizanahmads12 on Aug 14, 2023
Proactive Installers

I have talked to couple of people about solar. I received the best advice by these guys during the initial sizing phase, from where I decided to choose Demoking as my solar panel installer. My installation has completed last week & I am quite glad with the decision.

Posted by zshanq28 on Aug 09, 2023
Good job solar pros

Sales guy at Demo king presented me everything upfront before I could make my final call to go solar. It felt so good to see things going exactly the same way I was presented at first place. His name was Scott and good job buddy.

Posted by mariuswood on Aug 06, 2023
Top Noch Contractors

Excellent job, professional solar installation team.

Posted by mikerjw47 on Aug 02, 2023



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