Lumenexx
27 installs · $3.16/W avg
Solar Installers in Walnut, California
3 based in Walnut · 58 within 15 miles
Walnut solar at a glance
- The median installed solar price in Walnut, CA was $2.83 per watt across 74 residential installations in the 12 months to September 2026.
- Half of the residential solar installations in Walnut in the 12 months to September 2026 cost between $2.44 and $3.43 per watt for the solar array.
- Solar quotes submitted to Walnut homeowners through online marketplaces had a median asking price of $2.44 per watt as of September 2026, $0.39 per watt below what Walnut homeowners actually paid.
- AgentSolar lists 3 solar installers based in Walnut, CA and 58 within 15 miles; the most active based in Walnut are Lumenexx, Love Electric and 365 SOLAR.
Solar prices in Walnut in 2026
$2.83/WMedian installed price, Walnut74 quotes, last 12 months
$2.44–$3.43Typical installed range ($/W)middle 50%
$2.44/WMarketplace quote benchmark, Walnutas of September 2026
Installed prices are what homeowners paid for the solar array on residential installations from the last 12 months (cash and loan purchases; leases and PPAs excluded). The marketplace benchmark is the median of quotes installers submitted to homeowners through online solar marketplaces — an asking price, before negotiation. See California pricing in detail →
Solar installers in and around Walnut
The 3 based in Walnut come first, ranked by tracked installations, then rating; the rest are the nearest of the 58 within 15 miles. Every profile shows real pricing, reviews and contact details.
Love Electric
9 installs · $4.60/W avg
365 SOLAR
1 install · $3.32/W avg
Watts Up Electric
8 installs · $2.89/W avg
ABC Solar Incorporated
54 installs · $2.62/W avg
A2Z Home Remodeling
Howe Builders
3 installs · $3.42/W avg
Chandler's Roofing
Gold Star Remodeling Inc
AAA Express Heating & A/C
Energy Service Partners
2,080 installs · $3.42/W avg
PV Guru, Inc.
1 install · $2.33/W avg
PV Solar Solutions
8 installs · $2.47/W avg
Mario Castillo Electric
3 installs · $2.87/W avg
Solar Energy Long Beach LLC
Zimmerman Electric Company
Totalis Energy
Long Beach Solar
Renewable USA
55 installs · $3.12/W avg
SOLAR SOURCE®
106 installs · $3.38/W avg
Masterworks Construction Services, Inc.
Levine Homes Real Estate & Construction
3 installs · $3.66/W avg
Full Circle Solar
14 installs · $2.31/W avg
SCS Engineers
David L Swartzlander
10 installs · $3.56/W avg
How we rank installers in Walnut
Companies headquartered in Walnut are listed first, ordered by the number of installations we have on record for them, then by customer rating. The remaining slots go to the nearest companies within 15 miles, closest first. Paid installer memberships do not affect the order.
The installation records come from public utility and state solar program filings and from quotes homeowners upload to AgentSolar. We match each record to the installer named on it, so a company's count reflects work we can actually attribute to them, not a claim on their website.
Equipment brands Walnut installers carry
- Enphase 6
- Qcells 3
- SMA 2
- Briggs & Stratton 1
- Canadian Solar 1
- EcoFlow OCEAN Pro 1
- Fortress Power 1
- IronRidge 1
- LG Chem 1
- Mission 1
- Panasonic 1
- Q-Cell 1
Solar in Walnut: common questions
- How much does solar cost in Walnut, CA?
- Across 74 residential installations in Walnut from the last 12 months, the median price paid for the solar array was $2.83 per watt, with most between $2.44 and $3.43/W. These are cash and loan purchases; leases and PPAs are excluded. Quotes submitted to Walnut homeowners through online solar marketplaces run a median of $2.44 per watt as of September 2026 — an asking price, before negotiation.
- Who are the most active solar installers in Walnut?
- By installations on record, the most active solar installers based in Walnut are Lumenexx, Love Electric, 365 SOLAR, Watts Up Electric and ABC Solar Incorporated. The order counts installations we can attribute to each company, then customer rating; paid installer memberships do not affect it.
- Who are the best solar installers in Walnut?
- Among installers serving Walnut with at least 10 customer reviews and solar installations on record, the highest rated are SOLAR SOURCE® (5.0 from 110 reviews), 365 SOLAR (5.0 from 17 reviews) and Mario Castillo Electric (4.9 from 525 reviews). Ratings are each company's overall customer rating across all of its work, not solar alone. Paid installer memberships do not affect this list.
Solar across California
The most active solar installers in California, what solar cost statewide, and how to choose a solar installer in California.
Getting solar in Walnut?
Have a quote already? Upload it and see how it stacks up against 74 real Walnut installations — price, equipment and the fine print. No quote yet? We'll request them from vetted installers for you.