Rated 5-Stars on Google and Yelp out of 150+ Reviews
Stunning, Efficient Roofing & Solar Services For Danville Residents
Tucked away from the hustle and bustle of Oakland and San Francisco, Danville is a wonderful little town that somehow managed to avoid the influx of tourism that California experiences nearby. That being said, Danville has so much to offer those living in and around the area.
Sure, that may sound like a given, but most people never think about their roof until a problem starts to show itself. If you’re interested in adding solar to your home or business, ensuring a durable roof is the first step. Lucky for you, we’re experts in roofing, solar, and energy management services.
- Home
- California
- Danville, CA
For businesses in Danville, our commercial solar services address the diverse energy needs across various sectors. Whether you manage a retail establishment, a tech company, or an office space, we offer flexible solar solutions that drive significant cost savings while supporting your sustainability goals. Our thorough approach includes detailed site assessments, bespoke system designs, and professional installations, all focused on maximizing your energy efficiency and reducing operational costs. With Simmitri Inc., you can rely on receiving reliable, effective, and eco-friendly solar energy systems tailored to your business’s unique requirements.
Our Services For Danville Home & Business Owners
Get Comprehensive Solutions Custom-Tailored For Your Home
We’ve been the go-to choice for solar, roofing, and energy management services in the Danville area for over 30 years (read more about Our History). We have carefully chosen the products we wish to offer to ensure they work flawlessly together like a well-oiled machine. While you may not need all the services we offer, we will indeed have something for everyone.
Posted on Andrea GoldsmithTrustindex verifies that the original source of the review is Google. Simmitri installed our Enphase solar panels and later our battery system. They did a terrific job. Our system runs well after three years. They were good to work with. Their office helped us with the California document submission. We are pleased!Posted on David MartinezTrustindex verifies that the original source of the review is Google. After interviewing 3 solar companies I selected Simmiti for my dolar installation. The planning and submissions to PGE and SCCounty Building were done in a timely manner. The installation crew was superb. The inspector was highly impressed with the installation. Ana, my PM, stayed on all parties to get the final steps of approvals. I highly recommend Simmitri for your solar project. 9/12/2025 I just recently added 6 panels to my system (added e-car) and Pamela at Simmitri handled my project. Communication throughout the project was excellent and the crew, once again were FANTASTIC! Simmitri is a pleasure to work with.Posted on Denise TsangTrustindex verifies that the original source of the review is Google. We can say that installing and working with Simmitri was a seamless experience. They did exactly as they say they would. The staff is amazing to work with, especially the Project Manager Pamela Rodriguez and the Sales Manager Lonnie Cory. The installation crew was fast, clean and friendly. All in all, a great experience working with them from the beginning... and continuing. We are so happy with our new system!Posted on Ben BartyzelTrustindex verifies that the original source of the review is Google. Simmitri Inc. roofers did an excellent roof replacement for me, they were on time and on budget. I highly recommend this firm.Posted on Jerry SuarezTrustindex verifies that the original source of the review is Google. Our project began in 2020 with the construction of our new home. When we were ready for our Solar installation, Jonathan walked us through every step of the way. The installation crew were fast, competent, and thorough. We couldn't have asked for a better experience!!Posted on Lanard CTrustindex verifies that the original source of the review is Google. Great company....solar appointment was the best I have seen and very informative ...no pressure and very polite approach focusing on my interests and needs. System was installed and it was a great experience...Posted on Dylan NunnTrustindex verifies that the original source of the review is Google. Great experience!Posted on Steve McShaneTrustindex verifies that the original source of the review is Google. Wow! The service and attention to detail that Jonathan and his team provides is astounding. We had a complicated project with a complicated team and every question was answered in a timely fashion. Every one of the reviews I read is spot on. Thank you, Simmitri.Posted on Igor GorinTrustindex verifies that the original source of the review is Google. UPDATE: Shortly after posting this review I got contacted by Nick from Simmitri, he was courteous, apologized for the issue I had encountered, confirmed my eligibility for complimentary cleaning and offered few available times. I scheduled for the first available option, Simmitri guys called ahead when they were on the way to give me heads up, showed up on-time, cleaned the panels without any issues. Nick demonstrated that Simmitri cares about their customers and are willing to stand by them and do what's right. Based on this experience I updated my review and rating. -------------------------------------------------- Maybe I'm one of a few edge cases here, but I had really negative experience working with Simmitri. It started Ok during the sales. BTW Simmitri was not the least expensive option by any means. In fact they were closer to be the most expensive out of the several bids and quotes I had received. Sales guy promised me that I will pay more, but will get the install faster and all the work will be done by their own expert team - which he said was officially approved by the company as part of the transaction sign off. That's the end of good. Right away I got a terrible PM assigned to me, no status updates, misleading, confused...all my dates (which BTW were specified in the agreement) were missed, I had to personally reach out and coordinate with city planning to issue permit because Simmiti was not actively following up and were causing delays... once I had everything ready and they had scheduled an actual install date, no one had showed up (even though I sent emails and requested confirmation a week prior to the install date and was told all was Ok). I had to speak with the owner/CEO to get a new install who refuted that I had an install date set in the agreement - meaning he never even looked at it. I had to send him my copy and point to the date there... to which he said "it should have never been there, I need to talk to Sales to make sure it gets fixed"... anyways, as a result I had 3+ month delay from the date stated in the contract and missed the entire summer - which is peak months of generation last year and this had pushed my payback time on this investment by two years. The install crew that came to do the installation was a 3rd party sub-contracted by Simmitri. BTW they were good and did a good job (I think as I'm not an expert, but the system works). After working with the leadership through numerous escalations I finally got the system installed. I was told that in additional to $500 credit for all of the issues I had, I would get few cleaning and maintenance credits, never happened. Called in earlier to get a cleaning scheduled and was told I don't have any complementary cleanings... I would not recommend them.Posted on John PostovitTrustindex verifies that the original source of the review is Google. The people at Simmitri were very helpful in getting the solar system through the hoops to approval with PG&E. Highly recommended.
Residential & Commercial Solar in Danville
If you’re an environmentally conscious person, want to reduce your reliance on the main power grid, or simply want to reduce operating costs — our solar energy systems are for you. We have been installing our revolutionary solar panel systems for Danville residents since 2009 and have become the longest-running solar and roofing company in the area.
Our efforts towards optimizing a home or business’s “green level” don’t start and end with solar panels. We implement a long list of energy-saving devices, technologies, and best practices to reduce the carbon footprint wherever possible.
30-Year
Solar Panel Warranty
30-Year
Solar Panel Warranty
$0 Down
Solar Financing
25-Year
Inverter Warranty
Residential & Commercial Roofing in Danville
Way back before we were Simmitri Solar, we used only to offer roofing services and quickly earned the Triple Excellence Award from GAF for our impeccable installations. Soon after, we were inducted into the GAF President’s Club and ranked as Master Elite Roofers.
We still offer those same exceptional roofing services today for Danville home and business owners while using industry-leading products every step of the way.
Our GAF Lifetime Roofing System offers enhanced curb appeal, energy efficiency, custom-designed gutters and gutter guards, and much more. Your Danville home or business will be a money-saving machine with our many energy-saving features to choose from.
30-Year
Non-Pro-Rated Warranty
22
High-Quality Material Choices
365 Days
Unmatched Customer Support
100+
5-Stars Reviews on Google & Yelp
Solar Battery Storage in Danville
Once your roof is deemed suitable for solar, it’s time to figure out how to store all the energy you draw from the sun. Our state-of-the-art battery storage system utilizes ethically-mined lithium iron phosphate batteries, the safest batteries available for Danville residents.
Reliable power when you need it most — that’s the Simmitri guarantee.
Maximize Your Savings From Solar
Reduce Peak Hour Charges
Become Independent Of The Grid
EV Smart Charging Installation in Danville
Our state-of-the-art EV Smart Charging units can be completely monitored and controlled via mobile device with brilliant software that includes fail-safe measures, energy usage control, and much more. Home and business owners can benefit from having one or more EV Smart Charging units. From a business standpoint, giving customers a place to charge their cars while shopping, for example, will encourage them to spend more time in your establishment.
Start Avoiding Peak Pricing
Easy & Maintenance-Free
Mobile App Available
Smart Home Solutions for Danville
After a comprehensive assessment of your Danville home, our team will begin designing and custom-building products to meet your needs. Our Smart Home Solutions entail every trick, tip, and service under our umbrella of talents aimed toward improving a home’s energy efficiency.
Energy Efficiency
Peak Building Performance
Battery Storage
Reduce Demand & Back-Up Power
EV Charging
Power Your Car Or Fleet With The Sun
Commercial Energy Management for Danville
Don’t let power outages and increased rates stop you from running a successful business — get ahead of the problem now and reap the benefits for many years to come. By understanding your business’s personal needs and intricacies, we can devise a foolproof plan for a greener tomorrow while monitoring the day-to-day details.
Why Simmitri
Why Danville Residents Choose Simmitri
There are many reasons to choose Simmitri for your solar and roofing needs — here are the top six!
Personalized Customer Experience
At Simmitri, we treat every customer that walks through our door like family — not just another paycheck. We’ll happily listen to your needs during every phase of your renovation project to ensure maximum satisfaction.
Learn more about our Personalized Customer Experience…
Modern, Cutting Edge Products
Learn more about our Modern, Cutting Edge Products…
Custom, Detailed Workmanship
Learn more about our Custom, Detailed Workmanship…
Seasoned, Professional Service
Learn more about our Seasoned, Professional Service…
Core-Value/Mission-Driven
Learn more about how we are Mission Driven…
Active Community Involvement
Learn more about our Active Community Involvement…
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Simmitri Is Here To Make Your Transition To Solar As Smooth As Possible
Serving Danville, CA
If it’s finally time to replace the roof over your home or business, don’t wait! As the first line of defense, your roof plays a vital part in maintaining the structural integrity of the entire building. Our financing options make it quick and simple for anyone to start their next solar or roofing project.
Are you ready to get the ball rolling? Connect by calling (408) 779-3333, using our Online Solar Estimate tool, or our Contact Us form to jump-start the process.