Luminalt
San Francisco's leading locally owned solar and energy storage installer since 2004
22+
Years in Business
83
Customer Reviews
50 mi
Service Area
11-50
Employees
SurgePV Score
About Luminalt
Luminalt is a locally owned solar and energy storage installation company founded in San Francisco in 2004 by wife and husband team Jeanine and Noel Cotter. Headquartered at 10 Carolina Street in the Potrero Hill neighborhood, Luminalt has installed more solar in San Francisco than any other company. The company provides residential, commercial, and community solar installations across the San Francisco Bay Area.
Luminalt is a SunPower Certified Dealer, installing industry-leading SunPower solar panels alongside Tesla Powerwall battery storage systems. The company holds CSLB license number 845219 and specializes in the complex rooftop installations common in San Francisco’s dense urban environment, including Victorian and Edwardian homes with challenging roof configurations.
On Yelp, Luminalt holds a rating with 83 reviews, and on Angi the company is rated 5.0 out of 5. Customers consistently praise the company’s communication, attention to detail, and expertise with San Francisco’s unique permitting and interconnection requirements. Luminalt operates Monday through Friday from 8am to 5:30pm.
Service Area
Luminalt serves the following areas within a 50-mile radius:
Contact Information
Are you Luminalt?
Claim your profile and try SurgePV — the solar design platform that cuts project time by 60%.
Services Offered
Certifications & Accreditations
Partner Manufacturers
Panels
Inverters
Batteries
Warranty Coverage
25 years
25 years
10 years
What to Expect: Solar Installation Process
Initial Consultation
Free site survey and system design
Quote & Design
Detailed proposal with costs and savings
Installation
Panels, inverter, and wiring (1-3 days)
Inspection
City inspection and utility interconnection approval
Go Live
Utility grants PTO, system goes live
Customer Reviews
4.2
83 reviews
Sarah W.
Luminalt installed solar on our Victorian in the Sunset district. They navigated the complex roof angles perfectly and the system is performing great.
Michael K.
Truly remarkable local company that is efficient, communicative and detail oriented. They handled all the permitting and PG&E coordination.
Laura B.
Good experience overall. The installation was professional and the team was knowledgeable about SF-specific permitting requirements.
Frequently Asked Questions About Luminalt
What services does Luminalt offer?
Luminalt offers Solar Installation, Battery Storage, Maintenance, Monitoring.
Is Luminalt NABCEP certified?
Luminalt holds the following certifications: CSLB Licensed, SunPower Certified Dealer. Contact them directly for the latest accreditation details.
What areas does Luminalt serve?
Luminalt serves San Francisco, Oakland, Berkeley, Daly City, San Mateo, Marin County. They are based in San Francisco with a service radius of 80 km.
What warranty does Luminalt offer?
Luminalt offers 25-year panel warranty, 25-year inverter warranty, and 10-year installation/workmanship warranty.
How are Luminalt's customer reviews?
Luminalt has a 4.2/5 rating based on 83 customer reviews. They are well-regarded by their customers.
How long has Luminalt been in business?
Luminalt was founded in 2004 and has been in business for 22 years. They are one of the more experienced solar installers in their area.
Similar Installers in San Francisco
Get a Free Solar Quote from Luminalt
Fill in your details and we'll connect you with Luminalt.
Quote request sent!
Luminalt will be in touch within 1-2 business days.
Is this your business?
Claim this profile to manage your listing, respond to reviews, and receive leads.
Claim Your Profile