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Next Door Home Upgrades

Solar Companies in Simi Valley, California
Ranked #1 in Simi Valley | Grade A
5.00 (87 reviews)

Next Door Home Upgrades

Local residential solar installer providing design, installation, and utility interconnection for rooftop systems and battery backups. Known for steady communication and clean workmanship Serving homeowners across Simi Valley, California.

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Why Homeowners Choose This Business

Local Simi Valley, California team known for clear communication, attention to detail on aesthetics, and efficient installation. Homeowners note smooth coordination through city inspections and utility steps.

Service Area

Based in Simi Valley, California and working across nearby Ventura County and northwest Los Angeles County neighborhoods.

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  • Verified listing details
  • Service information
  • Customer review signals
  • Photo gallery
  • Public contact information
  • Published local profile

How This Business Compares

A quick local comparison based on review strength, business detail, and local service fit.
  • Holds a strong position among local competitors.
  • Performs at or above the local average rating.
  • Shows review activity that is competitive for this local market.
  • Shows strong customer satisfaction signals based on review quality and volume.

Services Covered

  Establishment
  Point Of Interest
  Roofing Contractor
  Residential Solar Installation
  Battery Backup Systems
  Installations
  Solar Panel Design
  Solar Interconnection
  Rooftop solar
  Solar monitoring setup
  Solar Aesthetic Upgrades
  Solar And Roofing Coordination
  Home Energy Storage
  Solar Permit Handling
  Grid-tied solar
  Time-of-Use Optimization

Residential solar design and installation, battery backup systems, solar-plus-roof coordination, system monitoring setup, panel layout optimization, permitting and utility interconnection, and post-install checkups.

Reviews

Customer Reviews

Marisol G
We’ve been enjoying home solar power with Nextdoor Home Upgrades for one year now, and the experience has been fantastic from start to finish. The initial setup was easy and affordable, and we’ve seen consistently low electricity bills ever…
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We’ve been enjoying home solar power with Nextdoor Home Upgrades for one year now, and the experience has been fantastic from start to finish. The initial setup was easy and affordable, and we’ve seen consistently low electricity bills ever since. One of the highlights was when our neighborhood lost power—our backup solar power kicked in right away, preventing any issues with our refrigerator.

A special shout-out to Josh, who has been professional, knowledgeable, and trustworthy throughout the process. He followed up with us after a year to ensure our system was performing as promised, and even made an adjustment to help us save even more money. We’re very happy with both the product and the service from Nextdoor Home Upgrades!
Gal Andres
We had such a great experience with Next Door Solar! We initially spoke with Sam, who was friendly, knowledgeable and straight up with us about costs, financing, solar plans and next steps. Finding someone honest and trustworthy was huge! O…
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We had such a great experience with Next Door Solar! We initially spoke with Sam, who was friendly, knowledgeable and straight up with us about costs, financing, solar plans and next steps. Finding someone honest and trustworthy was huge! Our experience through the solar process was pretty seamless too. The next door solar crew was professional and got their work done quickly, efficiently and left no mess behind. The biggest variable was city inspections, but those all went smoothly and the next door solar team kept us in the loop each step of the way. I highly recommend working with them! If you want honest, professional, high quality work and service - look no further.
Cora Wyent
I had an amazing experience going solar with Next Door. Josh was easy to communicate with via text from start to finish, and answered all of my questions thoroughly. The workmanship on the install and the attention to detail was excellent –…
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I had an amazing experience going solar with Next Door. Josh was easy to communicate with via text from start to finish, and answered all of my questions thoroughly. The workmanship on the install and the attention to detail was excellent – they installed some black trim below the street-facing solar panels that makes the install look finished, and they even asked for my house paint to paint the conduit so that it matched perfectly. This is a local company that doesn't subcontract out their work, unlike some of the larger installers, and it is well worth the slightly higher price (though their price was still very reasonable relative to other quotes we got). I would recommend this company without hesitation!
Triona McGill
Next Door Home Upgrades is the dream team of solar. They made the solar process a breeze with constant communication and clear expectations. Johnny at NDHU is friendly, knowledgeable and trustworthy with your solar needs. He sized our sys…
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Next Door Home Upgrades is the dream team of solar. They made the solar process a breeze with constant communication and clear expectations. Johnny at NDHU is friendly, knowledgeable and trustworthy with your solar needs. He sized our system perfectly with 20 panels and two Tesla PW3 batteries and plenty of room to grow if our demands increase. After researching solar and seeing the horror stories about Tesla installation taking forever and customer service nonexistence, Johnny was able to provide the local installation and top tier customer service while still installing the Tesla equipment we wanted. The whole process took less than 2 months (closer to one month) from start to finish and the install team at NDHU was fantastic. Started process on 8/19/25, installed on 9/11/25, city approval 9/15/25, pending SCE PTO. We had 3 quotes (Tesla, NDHU, other) which all were similar in cost, but NDHU is the way to go with their top-notch customer service and knowledgeable electrician/installers. If I had to do it all over again, I would not have changed a thing. If you want solar done the right way the first time, Next-Door Home Upgrades is where to go.
Jimmy N
“ I dare you to compare” with other Solar companies! Anyone can sell Solar systems , but is it the right system for your needs. Next Door Solar and Johnny Rhee provided the expertise and a custom system that was required for my main house…
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“ I dare you to compare” with other Solar companies! Anyone can sell Solar systems , but is it the right system for your needs. Next Door Solar and Johnny Rhee provided the expertise and a custom system that was required for my main house and ADU at a competitive price. Expert installers provided a clean and professional installation. Constant communication with me and the power company made the install seamless! Great Job!
Thank you!!

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Special Offers

Free Estimate

This business may offer free estimates for some services.

Frequently Asked Questions

They install grid-tied residential solar systems and offer solar-plus-battery setups for backup power. Projects are tailored to roof space, energy goals, and budget, with attention to aesthetics and layout.

Most timelines include design, permitting, installation, inspection, and utility interconnection. Reviews suggest installation itself is efficient, while city and utility steps can add time depending on local processing.

Yes, battery storage is available for backup and time-of-use management. Customers have reported seamless operation during outages once batteries are integrated and activated.

Yes, they manage permitting, inspections, and interconnection paperwork as part of the project. Customers frequently mention clear updates during these stages.

Installations are planned with curb appeal in mind, including tidy conduit runs and aligned arrays. Reviews note attention to finishing details to help systems blend with the home.
 Verified Listing

Opening Hours

  • Monday 9:00 AM – 5:00 PM
  • Tuesday 9:00 AM – 5:00 PM
  • Wednesday 9:00 AM – 5:00 PM
  • Thursday 9:00 AM – 5:00 PM
  • Friday 9:00 AM – 5:00 PM
  • Saturday Closed
  • Sunday Closed

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Business Details

Business Rating
5.00 (87 reviews) Featured BusinessPro Listing
Address
4180 Guardian St Ste 113, Simi Valley, CA 93063
Business Type
Roofing Contractor
Website
https://nextdoorsolar.com/
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