Best solar companies California Syntrol Solar

Syntrol Solar Reviews

Based in Roseville, CA. This profile is built from public installation records and published ratings, not paid placement.

1,626verified installs in California utility records*

0recent installs, 2025-26 records*

2012first year in county records

5.5/10Solar.com Score · 22 reviews analyzed

Solar.com Installer Score for Syntrol Solar

One score, computed the same way for every installer. We read the full text of all 22 substantive published Syntrol Solar review texts across every platform and measure what customers actually report. Not a survey. Not a sample. Never for sale.

Solar.com Installer Score

5.5/10

Blends the six category scores (70%) with the recency-weighted star record (30%).

Synthesized from 22 substantive customer review texts (31 published reviews collected).

Google 3.6★ · 27 reviewsYelp 1.8★ · 4 reviews

Updated September 28, 2026 · No installer can pay to change this score · How scores work →

Read what customers actually say ↓

Review star record4.8

recency-weighted star ratings across platforms

Sales Integrity5.8

6 reviews speak to this · 1 praise · 5 complaints

Price Transparency5.8

6 reviews speak to this · 1 praise · 5 complaints

Communication6.0

12 reviews speak to this · 3 praise · 9 complaints

Timeline Reliability6.0

8 reviews speak to this · 1 praise · 7 complaints

Workmanship6.1

8 reviews speak to this · 2 praise · 6 complaints

Long-Term Support5.0

6 reviews speak to this · 1 praise · 5 complaints

#638 of 678 scored in California by Solar.com Installer Score

How does Syntrol Solar compare where you live? Rankings are local; an installer that leads one city can trail in the next. See how they rank in your city →

Why this differs from star ratings: most five-star reviews say “great company” and stop, and star averages reward that. These category scores only count reviews with concrete evidence, weighted by recency and the reviewer’s track record. A company can hold a strong star average while specific categories score lower; that gap is usually where the real story is. Categories with more complaints than praise are the questions worth asking any bidder, not necessarily dealbreakers.

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Where Syntrol Solar builds

County-by-county activity from CPUC records through May 2026.

What this data covers: *Counts on this page, including the totals up top, come from investor-owned-utility interconnection records (SCE, SDG&E, PG&E). Work in municipal-utility territory, such as LADWP or city utilities, and outside California does not appear here, so this company's true totals are higher than shown. Unlike the county rankings, this profile also shows counties below the 250-install ranking floor.

County	Verified installs	Active since	Median system	% leased	County ranking
Sonoma County	170	2013	3.7 kW	78.8%	below ranking floor (under 250 installs)
Solano County	160	2012	4.4 kW	26.8%	below ranking floor (under 250 installs)
San Joaquin County	151	2014	5.4 kW	37.1%	below ranking floor (under 250 installs)
Butte County	151	2014	5.0 kW	26.5%	below ranking floor (under 250 installs)
Fresno County	132	2015	6.6 kW	73.5%	below ranking floor (under 250 installs)
Yolo County	111	2014	4.7 kW	27.1%	below ranking floor (under 250 installs)
Placer County	110	2013	6.3 kW	25.4%	below ranking floor (under 250 installs)
El Dorado County	104	2013	6.6 kW	39.4%	below ranking floor (under 250 installs)
Merced County	78	2016	4.4 kW	6.4%	below ranking floor (under 250 installs)
Contra Costa County	69	2012	4.9 kW	23.2%	below ranking floor (under 250 installs)

% leased counts systems recorded as third party owned (lease or power purchase agreement); the remainder are customer owned. Median system size is the middle system this company installed in that county. Star ratings and review counts are from Google.

Syntrol Solar reviews: what customers say

An independent synthesis of published customer feedback across Google and Yelp, updated September 28, 2026. Green marks praise, amber mixed experiences, red complaints.

Sales & proposal integrity

Sales Integrity5.8/10

Reviewers give a mixed picture of the sales process. One positive review describes a smooth purchase experience, but most of the evidence points to confusion around contract terms, savings explanations, and what was included after signing.Solar.com's composite of published customer feedback, not a customer quote

Contract and savings clarity concerns. Multiple reviewers describe unclear contract handling, confusing rate explanations, and proposal details that did not match their expectations. Representative review excerpt: "They say you are locked into the Unisun rate and they will rebate you the difference between your actual electric bill and the Unisun rate."

Possible added monitoring cost. One reviewer says monitoring was presented as free only under certain conditions and could cost more without them. Representative review excerpt: "Monitoring solar panels by Syntrol or yourself is only free if you have wifi and will cost $200+ extra if you don't."

Positive purchase experience. One reviewer says the purchase process went well and felt like a strong choice. Representative review excerpt: "I recently purchased solar through this company and they were the best choice over the rest of the company's."

Price & financing transparency

Price Transparency5.8/10

Feedback on pricing and financing is mixed, with more complaints than praise. Reviewers describe concerns about rebate timing, loan-related language, deposits or add-on costs, while one review mentions a reasonable quote with no-interest financing.Solar.com's composite of published customer feedback, not a customer quote

Program and rebate timing confusion. Several reviewers say the financing or savings program language was not clear, including how bill differences or rebates would be handled. Representative review excerpt: "They told me I would be signed up for a "Savings start today" program, which pays the difference of your PG&E bill and the new loan amount."

Potential added costs. A reviewer also reports that monitoring could add extra cost if certain conditions were not met. Representative review excerpt: "Monitoring solar panels by Syntrol or yourself is only free if you have wifi and will cost $200+ extra if you don't."

Reasonable quote with financing. One reviewer describes receiving a reasonable quote along with 18 months of no-interest financing. Representative review excerpt: "The very next day, Dan came out and worked us out a very reasonable quote complete with 18 months no interest financing."

Communication & coordination

Communication6.0/10

Communication is one of the more uneven parts of the review record. A few customers report getting good service and smooth coordination, but many others describe difficulty reaching the office, slow follow-up, and inconsistent ownership after installation.Solar.com's composite of published customer feedback, not a customer quote

Hard to reach. Several reviewers report repeated call attempts, hold times, or busy signals when trying to get support. Representative review excerpt: "I have made at least 10 calls to talk to someone in the last 3 weeks and all I get is a busy signal."

Post-install follow-up gaps. One reviewer says it took many attempts to get project information after installation and the response was generic rather than specific. Representative review excerpt: "After dozens of attempts to get my project information after completing the installation, I finally got a package from the coordinator that was generic information about the system."

Some smooth experiences. A few reviewers say they had no problems from sales through install and service. Representative review excerpt: "I see that this company does not have the best reviews online, but I have had no problems from sales to install to now service."

Timeline reliability

Timeline Reliability6.0/10

Reviews suggest timeline performance is inconsistent. Some customers mention helpful temporary support or timely scheduling, but most of the evidence describes delays tied to installation, inspections, or getting a system fully activated.Solar.com's composite of published customer feedback, not a customer quote

Extended delays. Several reviewers describe installation or follow-up work taking much longer than expected, including multi-month delays. Representative review excerpt: "waiting another four months ( April 2017) just to have a drain pipe installed which they left in my backyard without my permission."

Inspection and activation problems. Other reviews mention inspection failures or systems not coming online as expected. Representative review excerpt: "I know it didn't pass inspection at least once, I suspect it failed more times they didn't tell me about because the installation took several months longer than I was..."

Temporary support while waiting. One reviewer says the company delivered a portable AC unit to help until installation could be scheduled. Representative review excerpt: "Chuc delivered a small portable AC unit for us to use until they could schedule the installation."

Workmanship & site care

Workmanship6.1/10

Workmanship reviews lean mixed to negative. A small number of customers describe helpful service visits, but most comments point to installation problems, cleanup concerns, and cases where reviewers felt the job required extra correction.Solar.com's composite of published customer feedback, not a customer quote

Installation quality concerns. Several reviewers describe workmanship issues, including equipment problems, moisture in an equipment box, or work that did not appear to be completed correctly. Representative review excerpt: "Anyways the system fail to light up due to excess moisture (standing water) in the equipment box - an installation problem for sure."

Cleanup and follow-through issues. A reviewer also reports unfinished work left behind and concerns about how the team handled the site. Representative review excerpt: "I know it didn't pass inspection at least once, I suspect it failed more times they didn't tell me about because the installation took several months longer than I was..."

Helpful service visit. One reviewer says service came out to check on a possible roof leak related to a solar install. Representative review excerpt: "Just had service out to look at a potential roof leak from our solar that we had installed last year."

Long-term support & performance

Long-Term Support5.0/10

Post-install support is the weakest-rated category in the review set. One reviewer reports a good overall experience, but most of the feedback describes service difficulty, performance problems, and extra charges tied to monitoring or repairs.Solar.com's composite of published customer feedback, not a customer quote

Service response concerns. Multiple reviewers describe trouble reaching support or getting issues addressed after installation. Representative review excerpt: "I have made at least 10 calls to talk to someone in the last 3 weeks and all I get is a busy signal."

Performance and monitoring issues. Other reviews mention system problems, monitoring limitations, or frustration with how follow-up service was handled. Representative review excerpt: "Monitoring solar panels by Syntrol or yourself is only free if you have wifi and will cost $200+ extra if you don't."

Positive ongoing experience. One reviewer says they have had no problems from sales to installation to service. Representative review excerpt: "I see that this company does not have the best reviews online, but I have had no problems from sales to install to now service."

Bottom line: Solar.com’s review data for SYNTROL SOLAR is mixed, with several categories landing around the middle but recurring complaints about communication, timeline delays, and post-install support. The strongest positive feedback centers on a handful of smooth experiences, while the most consistent concerns involve unclear expectations, delayed follow-through, and service after the system is installed.

How this is built: category scores and summaries weigh the company's full published rating record (27 Google reviews averaging 3.6 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.

About Syntrol Solar

Company background from published business information and licensing records.

Also files CPUC records as: Syntrol Plumbing Heating & Air, Syntrol, Syntrol Plumbing Heating and Air, Syntrol Plumbing Electrical Heating and, Unisun Solar, Syntrol Heating Plumbing and Air, Syntrol Plumbing Electrical Heating/Air.

Products

Solar

Service area

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

Work for this company or see something out of date? Profiles can be claimed and corrected: contact partners@solar.com. Placement on solar.com is never for sale.

Recorded installs by year

Residential interconnections statewide in PG&E, SCE, and SDG&E records through May 2026.

2011

'12

'13

166

'14

564

'15

707

'16

500

'17

'18

'19

Important context: this chart shows investor-owned-utility records only. Companies that shift work toward municipal-utility territory (LADWP and city power departments) or other states will show declining bars here even while building steadily elsewhere, and 2025-26 records also lag real installation dates. Treat this as a partial window, not the company's full trajectory.

FAQ about Syntrol Solar

What do customers say in Syntrol Solar reviews?

We analyzed 22 substantive published customer reviews of Syntrol Solar in full. The company's Solar.com Installer Score is 5.5/10, with category-level detail on this page covering sales integrity, price transparency, communication, timeline reliability, workmanship, and long-term support.

How many solar systems has Syntrol Solar installed?

Syntrol Solar appears as installer of record on 1,626+ residential systems in California investor-owned-utility interconnection records through May 2026. Work in municipal-utility territory or other states does not appear in those public records.

How can I compare Syntrol Solar's pricing?

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How we built this data

Methodology: Counts are residential PV interconnections in investor-owned-utility territory (PG&E, SCE, SDG&E) per CPUC Rule 21 public records through May 2026. Postal and name variants are merged. Municipal utility territory such as LADWP, Glendale, Pasadena, Burbank, Anaheim, and Riverside Public Utilities is not included in those CPUC counts. Counts show recorded installations, not quality ratings. Reported costs are self-reported on owned-system interconnections. No installer can pay for placement.

Who we are: Solar.com is a solar marketplace — we connect homeowners with installers and earn a fee when projects move forward. These rankings and scores are computed from public installation records and published customer reviews. No installer can pay for placement, and no installer — including those we work with — can pay to change a score.