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La Mesa
(855) 502-6363
★★★★★ 5.0 — 2,500+ Google Reviews
Expert Solar Installation in La Mesa, CA
Harness warm hillside sunshine and start saving with Option One Solar — East County's trusted solar installer since 1970. La Mesa's hillside neighborhoods and south-facing rooftops are naturally positioned for solar — and with fewer fog days than the coast and strong sunshine, the production numbers here speak for themselves. Residential and commercial solar, battery storage, and full EPC services from a licensed local team.
54+ Years
Experience
2,500+
Installs
5-stars
Rated
Our Services
Complete Solar Services for La Mesa Homes & Businesses
Every service you need to go solar in La Mesa — design, installation, storage, and ongoing support.
Residential Solar Installation
From single-family homes to multi-unit properties, we design and install solar systems tailored to each La Mesa home. Take advantage of 271+ annual sunny days and start reducing your monthly SDG&E costs significantly.
Commercial Solar Solutions
Our licensed team delivers scalable solar for La Mesa businesses — full EPC from design to commissioning. We help commercial clients reduce overhead, achieve sustainability targets, and maximize the federal Investment Tax Credit.
Solar Battery Storage
Pair your solar system with a Tesla Powerwall or commercial-grade BESS for energy independence. In La Mesa's warm inland valley climate with more sunshine than the coast, battery backup isn't a luxury — it's the smartest upgrade you can add to a solar installation.
System Monitoring & Maintenance
Real-time monitoring keeps you informed about your system's performance 24/7. Our local East San Diego County team handles maintenance and repairs quickly, so your investment stays at peak output year after year.
Solar Consulting & Design
Our engineers perform a thorough analysis of your La Mesa property — roof condition, orientation, shading, and local SDG&E rate structure — to design a system that delivers the best possible return on your investment.
Full EPC Services
We handle everything from structural engineering to City of La Mesa building permits and SDG&E interconnection agreements. Our EPC capability means a single point of accountability from contract signing to system activation.
Free Consultation
Start Saving — Free La Mesa Solar Estimate
No pressure, no guesswork. We start with your La Mesa property and SDG&E bills, and finish with a transparent proposal showing exactly how much you'll save and how quickly your system pays for itself.
Detailed property and shading assessment
Custom system design with production estimates
Transparent pricing with financing options
Federal tax credit and incentive guidance
No obligation — no pressure
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(855) 502-6363
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Our Community
Rooted in East San Diego County, Serving La Mesa
Option One Solar has been serving Southern California communities like La Mesa since 1970. While our headquarters is in Apple Valley, our crews, project managers, and service technicians work throughout East San Diego County every day — and we treat every La Mesa customer like a neighbor. When you work with us, you're not getting a call center; you're getting a dedicated team that knows your area. La Mesa's hillside position and south-facing terrain create naturally favorable solar panel orientations across many of its neighborhoods. That's why we take the time to design every system specifically for local conditions — sun angles, utility rate structures, and City of La Mesa permitting requirements — rather than applying a one-size-fits-all approach. From a single residential rooftop to a multi-acre commercial installation, our licensed C-10 and C-46 team has the credentials and capacity to deliver. Every project comes backed by our 25-year warranty and ongoing local support.
How It Works
Our Simple Solar Process in La Mesa
Going solar in La Mesa doesn't have to be complicated. Here's exactly how our process works, from first call to first kilowatt.
Free Site Assessment & Energy Review
We start by reviewing your La Mesa property and SDG&E energy bills together. Our team evaluates your roof condition, orientation, and any shading from nearby structures, then combines that with your actual monthly usage — so every recommendation we make is grounded in real data for your specific situation.
Custom System Design for La Mesa
Using your site data and East County's above-average hillside sunshine hours, our engineers design a system sized and positioned specifically for your property. We model annual production estimates, calculate your payback period, and present a fully transparent proposal with no surprises and no pressure.
Permits, Installation & SDG&E Interconnection
Our licensed C-10 and C-46 crews handle every detail — pulling permits with City of La Mesa, scheduling inspections, installing your system to code, and filing your SDG&E interconnection agreement. You stay informed at every milestone without managing any of it yourself.
System Activation & Ongoing Local Support
Once SDG&E approves your interconnection, we commission your system and walk you through monitoring your production in real time. Our team remains your local resource for any questions, maintenance, or service needs for the full life of your installation, backed by a 25-year warranty.
Why Choose Us
The Option One Solar Difference in La Mesa
From credentials to customer service, here's what makes Option One Solar the right choice for La Mesa.
Established in 1970
Over 54 years serving Southern California — including La Mesa — gives us an unmatched track record and depth of knowledge that newer contractors simply cannot match.
Dual Contractor License
Our C-10 electrical and C-46 solar contractor licenses ensure every La Mesa project meets California's highest standards for safety, engineering, and code compliance.
Lifetime Local Support
Our 25-year warranty isn't just a document — it's a promise backed by a team that has been operating in East San Diego County for over half a century and isn't going anywhere.
Deep Local Knowledge
We know La Mesa's neighborhoods, City of La Mesa building department, and SDG&E's interconnection process. That knowledge translates to fewer delays and smoother projects for our customers.
2,500+ Five-Star Reviews
Our reputation across Southern California is built on thousands of satisfied customers. La Mesa homeowners join a community of solar owners who trust Option One Solar to deliver.
Every Budget Covered
From zero-down solar loans to lease programs, we structure financing to maximize your La Mesa savings immediately. Our team walks you through every option with full transparency.
FAQ
Solar Installation FAQ for La Mesa Homeowners
Honest answers to the most common solar questions we hear from La Mesa customers.
Service Areas
Also Serving Nearby Communities
In addition to Apple Valley, Option One Solar proudly serves homes and businesses throughout the High Desert and Inland Empire.
Get Started
Ready to go Solar in La Mesa?
Take the first step toward energy independence. Whether you are protecting your home from rising SCE rates or powering your business with clean energy, our La Mesa team is ready to help.