Best solar companies California Barth Roofing Company

Barth Roofing Company Reviews

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

15verified installs in California utility records*
0recent installs, 2025-26 records*
2016first year in county records
7.2/10Solar.com Score · 31 reviews analyzed

Solar.com Installer Score for Barth Roofing Company

One score, computed the same way for every installer. We read the full text of all 31 substantive published Barth Roofing Company review texts across every platform and measure what customers actually report. Not a survey. Not a sample. Never for sale.

Solar.com Installer Score

7.2/10

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

Synthesized from 31 substantive customer review texts (35 published reviews collected).

Google 3.9★ · 35 reviews

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

Read what customers actually say ↓
Review star recordRecency-weighted star ratings across platforms, converted to a 0-10 signal before it is blended into the headline Solar.com Score.9.0

recency-weighted star ratings across platforms

Sales IntegrityHow clearly and honestly the company explains the system, contract, savings, and incentives before you sign.6.8

5 reviews speak to this · 3 praise · 1 complaints

Price TransparencyHow well the final price, financing terms, and incentive guidance match what customers were led to expect.6.5

7 reviews speak to this · 5 praise · 2 complaints

CommunicationHow reliably the company keeps customers informed and answers questions across sales, installation, and service.5.8

14 reviews speak to this · 7 praise · 7 complaints

Timeline ReliabilityHow well the company manages the path from contract through permits, installation, inspection, and turn-on — without the customer having to chase it.6.4

6 reviews speak to this · 3 praise · 2 complaints

WorkmanshipThe quality, professionalism, neatness, and property care of the physical installation.6.8

13 reviews speak to this · 9 praise · 4 complaints

Long-Term SupportHow well the system performs after turn-on, how the company handles monitoring, warranty claims, and service calls — and its staying power to honor them.6.3

1 reviews speak to this · 0 praise · 1 complaints

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

How does Barth Roofing Company 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 Barth Roofing Company 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.

CountyVerified installsRecent 2025-26Active sinceMedian system% leasedCounty rankingLink to the county ranking page. This company's rank on this page is its Solar.com Installer Score rank, shown above.
San Joaquin County15020166.7 kW0.0%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.

Barth Roofing Company reviews: what customers say

An independent synthesis of published customer feedback, updated September 23, 2026. Green marks praise, amber mixed experiences, red complaints.

Sales & proposal integrity

Sales Integrity6.8/10

Reviewers most often describe the sales experience as clear and straightforward, with several saying they received prompt quotes and explanations of options. There is also a smaller complaint pattern around damage during the job, so this area reads as generally positive but not spotless.Solar.com's composite of published customer feedback, not a customer quote

Clear explanations and quotes. Reviewers say the team explained options well and provided quotes quickly, which helped set expectations early in the process. Representative review excerpt: "Keven took the time to explain all of my options clearly, and answered every question I had and provided a fair quote."

Fast proposal turnaround. Some reviewers report receiving a quote within a couple of days, suggesting an efficient initial sales process. Representative review excerpt: "Got a quote in 2 days."

One-off damage concern. A minority of reviews describe property damage during the visit or work, which affects how some customers viewed the overall proposal-to-job experience. Representative review excerpt: "In addition to this, They punctured a hole on the side of my house with their ladder and damaged my patio by them walking on it."

Price & financing transparency

Price Transparency6.5/10

A smaller set of complaints mentions wasted time or costs tied to the process, so the category is positive overall but still has some transparency concerns.Solar.com's composite of published customer feedback, not a customer quote

Fair and Pricing pricing. Reviewers describe a recurring pattern in this area. Representative review excerpt: "Great price was offered after he showed me photos of the problem areas."

Reasonable compared with other quotes. Reviewers also say they received a cost that felt reasonable after comparing multiple estimates. Representative review excerpt: "I got a lot of quotes and they were the most reasonable as well!"

Cost concerns in a complaint case. One reviewer describes ending the process after money had already been spent, indicating that at least some customers experienced dissatisfaction with the financial side of the job. Representative review excerpt: "Unfortunately need to pull out of this sunk cost situation, eat all the time and money wasted ($1k) with him and find someone else."

Communication & coordination

Communication5.8/10

Communication is one of the weaker areas in the review set. Positive comments mention responsiveness and professionalism, but an equally visible set of complaints describes missed follow-through, long gaps without updates, and no-shows.Solar.com's composite of published customer feedback, not a customer quote

Responsive and professional for some customers. Supportive reviews say the team was responsive, professional, and easy to work with from the first call onward. Representative review excerpt: "From the very first call, their team was professional, responsive, and easy to work with."

Quick replies and helpful follow-up. Some reviewers say they received prompt responses and good coordination during the project, including staying within budget. Representative review excerpt: "Quick response, professional approach, fast turnaround and good people to work with."

Poor follow-through reported. Other reviewers describe long stretches without updates, missed appointments, or difficulty getting someone to come out, which suggests inconsistent coordination. Representative review excerpt: "Nice guy but extremely poor communicator and follow through going MIA for long stretches- he did my initial roof inspection 1-28-26 and still to this day of this posting has..."

Timeline reliability

Timeline Reliability6.4/10

Timing feedback is mixed but leans workable. Some reviewers say installation and turnaround were on schedule, while others mention weather delays or no-shows that stretched the project timeline.Solar.com's composite of published customer feedback, not a customer quote

On-time installation for some jobs. Reviewers say the crew arrived when expected and completed installation on the planned timeline in at least some cases. Representative review excerpt: "Everything they estimated was correct and they were on time with installation."

Fast turnaround reported. A few reviews describe quick response and fast completion, pointing to generally solid scheduling on simpler jobs. Representative review excerpt: "Quick response, professional approach, fast turnaround and good people to work with."

Delays and missed arrivals. Other reviewers report waiting longer than expected or having appointments missed, showing that schedule reliability was not consistent across reviews. Representative review excerpt: "Around 2pm my In-laws called again because no one showed up still, was given the excuse that they went to a different job."

Workmanship & site care

Workmanship6.8/10

Most workmanship feedback is favorable, with reviewers describing meticulous installation, careful crews, and good cleanup. Still, there are complaints about property damage and roof-related mishaps, so site care appears solid overall but not uniformly problem-free.Solar.com's composite of published customer feedback, not a customer quote

Meticulous installation work. Reviewers say the crew handled detailed work carefully, including underlayment installation and daily cleanup of the yard. Representative review excerpt: "It included putting underlayment beneath the tile which was a lot of work and they were very meticulous and at the end of each day, made sure the yard was..."

Professional crew and strong execution. Some customers describe the installation crew as great and note that repairs were handled within budget. Representative review excerpt: "The crew that installed our roof was great."

Property damage concerns. A small number of reviews report damage to a house, patio, or roof area during the visit or work, which affects the site-care picture. Representative review excerpt: "In addition to this, They punctured a hole on the side of my house with their ladder and damaged my patio by them walking on it."

Long-term support & performance

Long-Term Support6.3/10

There is very limited evidence on post-install performance, and the available review is negative. That means there is not enough broad feedback to judge long-term support confidently, but the one substantive report points to follow-through concerns after the initial visit.Solar.com's composite of published customer feedback, not a customer quote

Follow-through concern after inspection. The available review describes poor follow-through after an initial roof inspection, suggesting potential issues with post-visit responsiveness. Representative review excerpt: "Nice guy but extremely poor communicator and follow through going MIA for long stretches- he did my initial roof inspection 1-28-26 and still to this day of this posting has..."

Limited evidence base. This category has only one substantive review in the corpus, so the picture is too thin to make a broad judgment about long-term support. Representative review excerpt: "Nice guy but extremely poor communicator and follow through going MIA for long stretches- he did my initial roof inspection 1-28-26 and still to this day of this posting has..."

Bottom line: BARTH ROOFING COMPANY’s review profile is moderate overall, with a Solar.com installer score of 7.2/10. Reviewers most often praise pricing, installation quality, and some parts of the sales process, while communication and coordination are the most common pain points. The review set also includes complaints about missed appointments, delays, and a few damage-related concerns, so the experience appears mixed rather than uniformly strong.

How this is built: category scores and summaries weigh the company's full published rating record (35 Google reviews averaging 3.9 stars), the most recent and most relevant review texts, and recurring feedback themes verified acrossGoogle. Ratings and review excerpts from published review sources. Refreshed as new feedback is published. No installer can pay to change it.

About Barth Roofing Company

Company background from published business information and licensing records.

Also files CPUC records as: Barth Roofing.

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.
5
2016
4
'17
2
'18
4
'19
6
'20
2
'21
3
'22
1
'23

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 Barth Roofing Company

What do customers say in Barth Roofing Company reviews?

We analyzed 31 substantive published customer reviews of Barth Roofing Company in full. The company's Solar.com Installer Score is 7.2/10, 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 Barth Roofing Company installed?

Barth Roofing Company appears as installer of record on 15+ 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 Barth Roofing Company'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.