Quantum Solar Designs Reviews

Reviewers most often describe the sales process as knowledgeable and straightforward, with several saying the team took time to explain system sizing and recommendations. A smaller set of reviews reports concerns about underspecified production estimates or expectations that did not fully match the final system discussion.Solar.com's composite of published customer feedback, not a customer quote

Knowledgeable, explanatory sales visits. Several reviewers say the owner or sales staff clearly explained panel counts, system design, and why particular recommendations were made. These reviews describe a consultative experience rather than a high-pressure pitch. Representative review excerpt: "Dwaine, the owner, came to our house and took about an hour to thoroughly explain the entire setup we needed, as well as the reasons behind his recommendations."

Honest guidance around timing and fit. Some reviewers describe the company as candid about whether solar made sense at a given time and say the team was informed about panels and electrical details. Representative review excerpt: "I can't say enough about Quantum's honesty not to go solar during that time."

Expectation gaps in proposal detail. A few reviewers report concerns that estimated production or system assumptions were not spelled out clearly enough, or that the proposed setup did not match their expectations once the project was underway. Representative review excerpt: "Summary: two major failures with a number of smaller ones: (1) did not follow manufacturer recommendations in using radically undersized microinverters; (2) did not disclose any estimated production numbers in..."

Most reviewers describe pricing discussions and financing as clear, with several noting patient explanations of system components and financing terms. One review raises concern about a system-size expectation not being clearly framed, but complaint volume is limited in this category.Solar.com's composite of published customer feedback, not a customer quote

Helpful explanations of pricing details. Reviewers say the team took time to walk through what different parts of the system did and helped them understand the proposal structure. This is described as especially helpful for homeowners who wanted more detail before signing. Representative review excerpt: "I was a total "helicopter homeowner" and they not only took my nosiness in stride they took the opportunity to explain what the different parts did in the scheme of..."

Smooth in-house financing. One reviewer specifically mentions that the financing process felt easy and that staff helped keep the process calm and understandable. Representative review excerpt: "Special thanks to Tracy who kept us calm through the easy in-house financing."

Occasional concern about cost expectations. A small number of reviewers say their understanding of system size or expected coverage was not as clear as they wanted during the pricing conversation. Representative review excerpt: "When I asked about the system, my response was that your system will be more than enough to cover your electric use."

Communication earns frequent praise when the owner or staff are engaged directly, explain the project thoroughly, and follow up on system details. At the same time, this is one of the weaker areas in the review set because several reviewers report unanswered calls and emails, or difficulty getting a response after problems arose.Solar.com's composite of published customer feedback, not a customer quote

Clear, detailed walkthroughs. Positive reviews say the owner or representatives spent time explaining the setup, the reasoning behind recommendations, and how monitoring tools work. These customers describe the communication as thorough and easy to follow. Representative review excerpt: "The follow up meeting included an explanation of the app that allows us to monitor the system."

Direct contact with the owner. Some reviewers say the owner personally came out, explained the project in detail, and helped them feel informed without pressure. Representative review excerpt: "Dwaine, the owner, came to our house and took about an hour to thoroughly explain the entire setup we needed, as well as the reasons behind his recommendations."

Unanswered follow-up requests. Several reviewers report repeated calls and emails going unanswered after installation or when they needed help with damage or other issues. These complaints point to inconsistent responsiveness once the project moved beyond the initial sales phase. Representative review excerpt: "I have called Quantum several times, as well as sent an email detailing the damage and showing proof with photos, and they have completely ignored my requests for a response."

Timeline feedback is mostly positive, with reviewers commonly saying installs happened on schedule or were completed quickly once work began. A couple of reviews mention delays around estimates or rebate-related follow-up, so timing appears generally reliable but not flawless.Solar.com's composite of published customer feedback, not a customer quote

On-time installation work. Reviewers say crews arrived when expected and, in some cases, finished the install in a single day. These comments suggest solid day-of-project scheduling. Representative review excerpt: "Their install team arrived on time and completed the work in one day."

Efficient project execution. Some reviewers describe the process as organized and prompt from the planning stage through installation, with clear next steps along the way. Representative review excerpt: "We were so impressed that we hosted a home show a few months later and our neighbors were also impressed, so much so that so far at least one has..."

Estimate or rebate timing delays. A small number of reviewers report waiting longer than expected for an estimate or for issues tied to a rebate application that needed attention. These comments suggest some projects experienced timing friction outside the install itself. Representative review excerpt: "I have a pending battery rebate application with SCE that requires immediate attention by Quantum because there is a deadline for Quantum to resolve the application issues."

Many reviewers praise the crews for neat, professional installs and for solving difficult layout or repair challenges. Still, a meaningful minority describe roof damage, cleanup issues, or concerns about how the work was performed on site.Solar.com's composite of published customer feedback, not a customer quote

Neat, professional installs. Several reviewers describe the installation as clean and well organized, including hidden wiring and a professional crew. These comments suggest strong attention to finish quality in many projects. Representative review excerpt: "Installation was extremely neat and clean with hidden wiring."

Able to handle complex jobs. Reviewers also note that the team could work through complicated layouts and complete the job quickly. Some say the crew fixed prior installation problems as part of the visit. Representative review excerpt: "The team came out diagnosed the problem, proposed a solution and fixed the previous installer's mistake."

Roof damage and cleanup concerns. A few reviewers report broken tiles, debris left on the roof, or other site-care problems after the installation. These complaints indicate that workmanship and cleanup were not consistent across all jobs. Representative review excerpt: "My roofer determined it was due to poor installation, because they did not remove the tiles as per the contract, but simply stepped on them and broke many of them."

Post-install feedback is generally positive, especially around system output, customer support, and the ability to get a home producing its own electricity. Even so, some reviewers report frustration when trying to use warranty support or get help after installation, so the follow-through experience is not uniform.Solar.com's composite of published customer feedback, not a customer quote

Systems producing as expected. Several reviewers say their systems are working well and that they are pleased to be generating their own electricity. These reviews frame the end result as a major success. Representative review excerpt: "Thank you Quantum Design for getting my home producing its own electricity!"

Helpful support after installation. Some reviewers describe customer support as good and say the company remained responsive enough to address questions or issues after the system was turned on. Representative review excerpt: "They're customer support is very good."

Warranty and repair frustration. A few reviewers say they had trouble getting help with roof or system issues after installation, including concerns about warranty follow-up. These reports point to uneven long-term support when problems surfaced. Representative review excerpt: "Now that we have roof leaks (again!), and I'm trying to get it repaired on the 10 year warranty they gave us, I just found out that they are out..."

Products

Solar

Service area

California. Note: the install counts on this page cover California investor-owned-utility records only.