Best solar companies California D W Plumbing

D W Plumbing Reviews

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

18verified installs in California utility records*
7recent installs, 2025-26 records*
2021first year in county records
7.7/10Solar.com Score · 23 reviews analyzed

Solar.com Installer Score for D W Plumbing

One score, computed the same way for every installer. We read the full text of all 23 substantive published D W Plumbing review texts across every platform and measure what customers actually report. Not a survey. Not a sample. Never for sale.

Solar.com Installer Score

7.7/10

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

Synthesized from 23 substantive customer review texts (36 published reviews collected).

Google 4.8★ · 36 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.10.0

recency-weighted star ratings across platforms

Price TransparencyHow well the final price, financing terms, and incentive guidance match what customers were led to expect.6.7

1 reviews speak to this · 1 praise · 0 complaints

WorkmanshipThe quality, professionalism, neatness, and property care of the physical installation.7.0

1 reviews speak to this · 1 praise · 0 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.6.5

1 reviews speak to this · 1 praise · 0 complaints

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

How does D W Plumbing 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 D W Plumbing 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.
Tehama County18720214.6 kW11.1%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.

D W Plumbing reviews: what customers say

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

Sales & proposal integrity

No review evidence was surfaced for this category, so there is not enough information to characterize how D W PLUMBING handles sales conversations, proposal details, or expectation-setting. The available review set does not provide enough signal to identify a pattern either way.Solar.com's composite of published customer feedback, not a customer quote

No evidence surfaced. The review corpus provided no substantive mentions of sales pressure, proposal clarity, savings claims, or contract expectations.

Insufficient signal. Because there were no evidence reviews in this category, the available review data does not support a positive or negative conclusion.

Price & financing transparency

Price Transparency6.7/10

The limited review evidence points to generally favorable pricing perceptions, with one reviewer describing the company as attentive on a financially modest job and saying they would have been overcharged elsewhere. There is not enough evidence here to establish a broader pattern around financing, deposits, refunds, or surprise costs.Solar.com's composite of published customer feedback, not a customer quote

Fair-value perception. One reviewer described the company as prioritizing a job that may not have been especially lucrative, and implied the pricing felt favorable relative to what they expected elsewhere. Representative review excerpt: "They prioritized getting to me for something that arguably was not worth their time financially and many places would have overcharged me for."

Limited sample. Only one evidence review was available for pricing and financing, so the data does not show a wider pattern on payment terms or rebate timing.

Communication & coordination

No substantive review evidence was surfaced for communication or project coordination. The available corpus does not provide enough information to assess responsiveness, updates, handoffs, or customer support.Solar.com's composite of published customer feedback, not a customer quote

No evidence surfaced. The provided reviews did not include usable detail about communication habits, scheduling follow-through, or project ownership.

Not enough data to judge. With no evidence reviews in this category, it is not possible to infer a reliable pattern from the available corpus.

Timeline reliability

No substantive review evidence was surfaced for scheduling, permits, inspections, or utility activation. The review set does not give enough detail to determine whether timelines were consistently reliable.Solar.com's composite of published customer feedback, not a customer quote

No timing evidence. The available review corpus did not include concrete mentions of schedule adherence, no-shows, or activation delays.

Insufficient detail. With no evidence reviews in this category, there is no review-based pattern to summarize.

Workmanship & site care

Workmanship7.0/10

The available review evidence is limited but favorable on installation quality and crew professionalism. There is not enough review volume in this category to establish recurring concerns about cleanup, damage, or inspection-related fixes.Solar.com's composite of published customer feedback, not a customer quote

Positive installation impression. One reviewer offered a favorable account tied to the crew involved, reflecting a positive impression of the work done on site. Representative review excerpt: "Derek and Derek, father and son not to be confused with the brothers Daryl and Daryl."

Limited complaint signal. The provided evidence does not surface recurring complaints about workmanship or site care, though the sample is very small.

Long-term support & performance

Long-Term Support6.5/10

The long-term support signal is modestly positive, with one reviewer describing a favorable experience that suggests the company followed through after the job was needed. Still, the evidence base is thin, so the corpus does not show a broad pattern for monitoring, warranty support, repairs, or post-install service.Solar.com's composite of published customer feedback, not a customer quote

Helpful follow-through. One reviewer described the company as prioritizing their need and viewed that responsiveness positively in the context of post-install or service support. Representative review excerpt: "They prioritized getting to me for something that arguably was not worth their time financially and many places would have overcharged me for."

Small evidence base. Only one evidence review was available for long-term support and performance, so the corpus does not establish a wider service pattern.

Bottom line: D W PLUMBING’s review profile is based on a small evidence set, with the strongest signals coming from pricing perception, workmanship, and post-install support. The overall Solar.com Installer Score is 7.7/10, but several categories have no substantive review evidence, so those areas cannot be evaluated confidently from the available corpus alone.

How this is built: category scores and summaries weigh the company's full published rating record (36 Google reviews averaging 4.8 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 D W Plumbing

Company background from published business information and licensing records.

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.
2
2021
4
'22
4
'23
1
'24
8
'25
1
'26

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 D W Plumbing

What do customers say in D W Plumbing reviews?

We analyzed 23 substantive published customer reviews of D W Plumbing in full. The company's Solar.com Installer Score is 7.7/10, 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 D W Plumbing installed?

D W Plumbing appears as installer of record on 18+ 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 D W Plumbing'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.