Sales & proposal integrity
Sales Integrity8.0/10
Reviewers most often describe the sales process as clear, knowledgeable, and grounded in technical detail. A small number of complaints suggest occasional disconnects between what was represented and what customers later experienced.Solar.com's composite of published customer feedback, not a customer quote
Clear system guidance. Many reviewers say the team explained system options and design needs in a straightforward way, helping them understand equipment choices and project scope. Representative review excerpt: "From the start, Andrew Smith was able to talk me through the system I would need and was able to present the system in an extremely clear manner."
Technical confidence. Customers frequently praise the company for technical expertise and for making complex solar decisions feel manageable during the proposal stage. Representative review excerpt: "If you want a solar contractor with deep technical expertise, unmatched integrity, and true dedication to customer satisfaction, I highly recommend Cinnamon Energy Systems."
Occasional expectation gap. A few reviewers report that sales representations did not fully match later installation realities, especially around roof type or project fit. Representative review excerpt: "My one reservation is that their sales person explicitly represented that Cinnamon was experienced with installing panels on a metal roof before and would have no issues doing it here."
Price & financing transparency
Price Transparency7.0/10
Most reviewers who mention pricing describe the quotes and overall value positively, including battery-backed packages and reasonable estimates. The complaint pattern centers on a handful of experiences involving backup-related issues, order confusion, or dissatisfaction with how costs and expectations played out after signing.Solar.com's composite of published customer feedback, not a customer quote
Reasonable quote discussions. Several reviewers say they received pricing information that felt clear and fair, with quotes that matched the needs discussed for their homes or properties. Representative review excerpt: "Cinnamon came out and listened to what I needed and gave me a quote, which I found very reasonable, including a battery backup."
Helpful product-value explanation. Customers also report that staff took time to explain equipment options and help them understand the value of different system configurations. Representative review excerpt: "Jessica is an amazing subject matter expert in the solar industry and really helped us understand what was needed at our residence and commercial properties to reduce our carbon footprint..."
Post-sale cost concerns. A smaller set of reviewers describe frustration tied to backup equipment, monitoring, or order handling after the project was underway. Representative review excerpt: "New company came out, confirmed that we needed a new inverter but when they tried to order it they were denied because Cinnamon Energy "
Communication & coordination
Communication8.4/10
Communication is one of the company’s stronger themes, with many reviewers describing frequent updates, helpful follow-through, and organized handoffs across the project. Complaints are less common but include slow callbacks, voicemail-only contact, and a few reports of projects stalling or seeming overlooked.Solar.com's composite of published customer feedback, not a customer quote
Responsive project follow-up. Reviewers often describe timely email responses and helpful follow-up from project staff, which made coordination feel smoother. Representative review excerpt: "Marcus was also very patient, professional, and his follow up and response to emails was timely and always helpful."
Clear multi-step coordination. Many customers say they received steady updates from multiple team members and appreciated transparent communication from start through post-installation. Representative review excerpt: "We especially appreciated the transparent communication throughout the project and the post-installation follow-up to ensure everything was running smoothly."
Slow or missed callbacks. A few reviewers report difficulty reaching the company by phone or feeling like their project needed extra prompting to keep moving. Representative review excerpt: "At 4 months, I followed up and as best I could tell, my project had just been forgotten and made me wonder if I would have ever been contacted if..."
Timeline reliability
Timeline Reliability8.2/10
Most reviewers describe the company as organized around permits, inspections, and utility coordination, with several saying the process was handled smoothly. Still, a noticeable minority mention scheduling delays, permit complications, or slower-than-expected responses when issues came up.Solar.com's composite of published customer feedback, not a customer quote
Smooth process management. Many reviewers say the team walked them through permitting and final inspection in a way that felt organized and low-stress. Representative review excerpt: "They walked us through every step of the process — from site evaluation and system design to permits and final inspection — making it easy and stress-free."
Flexible scheduling support. Customers also report that the company handled rescheduling and troubleshooting quickly when coordination with utility work or site issues changed. Representative review excerpt: "Despite being abroad, she immediately answered my text, rescheduled the PG&E install, and sent Jonathan back out to perform detailed troubleshooting on the equipment to ensure a seamless setup."
Permit and response delays. Some reviewers describe longer waits tied to permits, PTO, or issue resolution, including cases where follow-up took much longer than expected. Representative review excerpt: "Just be aware that the permit process and getting PTO can cause significant scheduling delays."
Workmanship & site care
Workmanship8.8/10
Installation quality is generally described positively, with reviewers praising careful crews, clean work, and strong on-site professionalism. A few complaints mention wiring issues, roof-related damage, or questions about how certain roof types were handled, but those reports are uncommon relative to the praise.Solar.com's composite of published customer feedback, not a customer quote
Professional, clean crews. Many reviewers say the installation crews were courteous, efficient, and respectful of the property during the work. Representative review excerpt: "Installation was completed on schedule, and the crew was courteous, clean, and efficient."
Careful execution. Several customers note that the crew knew what they were doing and that the work was handled with attention to detail. Representative review excerpt: "Each crew knew what they were doing and were able to explain what the crew who would follow them would be doing the next day."
A few site-quality concerns. A small number of reviewers report issues such as wiring problems or roof-related follow-up after installation. Representative review excerpt: "Some turnover on the team and some knock on work (roof leak cased by install) but they made good on all of it."
Long-term support & performance
Long-Term Support8.7/10
Post-installation feedback is mostly positive, with many reviewers saying their systems are performing well and that follow-up support was solid. The main complaints involve performance interruptions or slower service responses when something failed after turn-on.Solar.com's composite of published customer feedback, not a customer quote
Strong system performance. Many reviewers say their systems are producing as expected and that the overall performance has been strong after activation. Representative review excerpt: "I’m so pleased with how my system is performing."
Good follow-up after issues. Some customers report that the company stayed involved after commissioning and helped address post-installation questions or troubleshooting. Representative review excerpt: "Exceptional, Best-in-Class Experience with Cinnamon Energy Systems: I chose Cinnamon Energy Systems (CES) based on their weekly podcast The Energy Show, their excellent reputation, and my positive history with Barry..."
Service delays after failure. A few reviewers describe frustration when equipment or inverter issues took a long time to get resolved after the system was already running. Representative review excerpt: "However, when the inverter failed during the highest production months of the year, it took them over 2 months to respond."
How this is built: category scores and summaries weigh the company's full published rating record (110 Google reviews averaging 4.8 stars), the most recent and most relevant review texts, and recurring feedback themes verified acrossGoogle and Yelp. Ratings and review excerpts from published review sources. Refreshed as new feedback is published. No installer can pay to change it.