Best solar companies California Lewis Mechanical

Lewis Mechanical Reviews

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

11verified installs in California utility records*
0recent installs, 2025-26 records*
2016first year in county records
7.9/10Solar.com Score · 653 reviews analyzed

Solar.com Installer Score for Lewis Mechanical

One score, computed the same way for every installer. We read the full text of all 653 substantive published Lewis Mechanical review texts across every platform and measure what customers actually report. Not a survey. Not a sample. Never for sale.

Solar.com Installer Score

7.9/10

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

Synthesized from 653 substantive customer review texts (892 published reviews collected).

Google 4.9★ · 892 reviews

Updated September 23, 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.9.8

recency-weighted star ratings across platforms

Sales IntegrityHow clearly and honestly the company explains the system, contract, savings, and incentives before you sign.7.3

90 reviews speak to this · 90 praise · 0 complaints

Price TransparencyHow well the final price, financing terms, and incentive guidance match what customers were led to expect.6.6

50 reviews speak to this · 40 praise · 9 complaints

CommunicationHow reliably the company keeps customers informed and answers questions across sales, installation, and service.7.1

115 reviews speak to this · 108 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.6.9

47 reviews speak to this · 45 praise · 1 complaints

WorkmanshipThe quality, professionalism, neatness, and property care of the physical installation.7.6

217 reviews speak to this · 212 praise · 5 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.7.1

79 reviews speak to this · 73 praise · 6 complaints

#82 of 1,089 scored in California by Solar.com Installer Score

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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 Lewis Mechanical 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.
El Dorado County11020166.7 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.

Lewis Mechanical 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 Integrity7.3/10

Reviewers consistently describe clear proposals, straightforward explanations, and little to no sales pressure. The category is strongly positive, with no recorded complaint evidence in the sampled reviews.Solar.com's composite of published customer feedback, not a customer quote

Clear explanations. Reviewers say the sales process was easy to understand because the team took time to explain the work and answer questions thoroughly. Representative review excerpt: "He took the time to explain everything clearly, and I truly appreciated his honest and straightforward approach."

No-pressure approach. Reviews also describe a low-pressure experience, with customers saying they did not feel pushed while reviewing the proposal and options. Representative review excerpt: "He explained everything clearly and thoroughly, with zero pressure, which made the process so much easier."

Customized estimates. Some reviewers say the estimates appeared tailored to the home’s specific conditions rather than feeling generic. Representative review excerpt: "Also, his analysis of our house's peculiar characteristics , to include electrical, asbestos issues (if any), ductwork, gave us confidence that Lewis Air individualized their estimates, and didn't provide cookie..."

Price & financing transparency

Price Transparency6.6/10

Reviewers are split here: many describe reasonable pricing and no hidden fees, while a smaller set report concerns about high costs, unclear billing, or charges tied to service follow-up. The feedback points to mostly positive pricing experiences, but with enough complaints to keep transparency only moderately rated.Solar.com's composite of published customer feedback, not a customer quote

Reasonable quotes. Reviewers describe a recurring pattern in this area. Representative review excerpt: "Their quote was very reasonable with no hidden fees, and the quality of their work exceeded my expectations."

Helpful pricing context. Some customers note the team was responsive and that the price appeared about average or fair for the work performed. Representative review excerpt: "Phillip was responsive and helpful and the price seemed about average for the work."

Cost and billing complaints. A smaller group reports concerns about high total cost, charges for work they believed should have been covered, or limited detail on work orders and billing. Reviews also mention incentive timing and deposits in the broader pricing conversation, but the main complaint pattern is about charge clarity and expectations. Representative review excerpt: "However, I was a bit disappointed to be charged to fix something related to the install, which is still under warranty."

Communication & coordination

Communication7.1/10

Most reviews describe responsive staff, helpful coordination, and technicians who kept customers informed during service. A few complaints mention missed follow-up, limited responsiveness, or scheduling friction, but they are a small minority of the sampled feedback.Solar.com's composite of published customer feedback, not a customer quote

Kept customers informed. Reviewers often say staff were polite, responsive, and kept them updated during the visit or repair process. Representative review excerpt: "Had my service today and Reign was great - very polite, cheerful and kept me informed along the way."

Helpful project ownership. Some customers describe the team stepping in to coordinate difficult or repeat issues and keep the work moving forward. Representative review excerpt: "Moreover, most recently just over 2 years after installation, in the middle of a heat wave, our downstairs unit connectivity went down, and Kelly deftly balanced Lewis Air's extremely busy..."

Follow-up gaps. A smaller set of reviews mentions weak responsiveness or imperfect follow-up, including issues with online forms or general communication speed. Representative review excerpt: "Unfortunately they are not responsive!"

Timeline reliability

Timeline Reliability6.9/10

Reviewers generally report timely arrivals, quick scheduling, and work completed when promised. A small number mention wide arrival windows or permit follow-up that still needed attention, so timeline performance is mostly positive but not fully consistent.Solar.com's composite of published customer feedback, not a customer quote

On-time service. Many reviewers say the team showed up on time and completed installation or service within the promised window. Representative review excerpt: "Showed up on time for the estimate and install."

Prompt scheduling. Some reviews note that appointments were available quickly and work was finished in a day as expected. Representative review excerpt: "We were happy we could get an appointment for the installation right away, and the cost was reasonable."

Window and permit follow-up. A few customers mention broad arrival windows or pending permit follow-up that required another check-in. Representative review excerpt: "I am still waiting to see about permitting so I’ll have to follow up with them on that, but otherwise no complaints."

Workmanship & site care

Workmanship7.6/10

This category trends strongly positive. Reviewers frequently describe professional crews, careful installation, and good cleanup, while a small number report damage, unresolved issues, or workmanship concerns that needed follow-up.Solar.com's composite of published customer feedback, not a customer quote

Professional installation. Reviewers often praise the crew’s professionalism and say the work was done well and on schedule. Representative review excerpt: "We were happy we could get an appointment for the installation right away, and the cost was reasonable."

Cleanup and courtesy. Several customers mention polite technicians who left the site clean and handled the visit carefully. Representative review excerpt: "Frank showed up on time and did a great job and One above and beyond with cleanup."

Damage or rework concerns. A small number of reviews describe damage, incomplete fixes, or installation-related issues that required later attention. Representative review excerpt: "The base board around my return register was damaged and the filter box lid was glued shut."

Long-term support & performance

Long-Term Support7.1/10

Most reviewers describe solid post-install support, including effective repairs, warranty-related part replacement, and reasonable response times. There are still a few complaints about service delays, unresolved damage, or charges tied to work that customers expected to be covered.Solar.com's composite of published customer feedback, not a customer quote

Effective repairs. Reviewers say technicians were able to identify problems and get systems running again, sometimes during urgent heat-wave conditions. Representative review excerpt: "I called Lewis Air who installed my unit and they were out in a reasonable amount of time and did the repair."

Warranty support. Some customers specifically mention warranty-related part replacement or repair work being handled after diagnosis. Representative review excerpt: "Sal was quick to identify a computer board issue and required manufacture warranty to replace parts."

Post-install service friction. A smaller set of reviews reports difficulty getting service scheduled quickly or concerns about follow-up on issues after installation. Representative review excerpt: "We are in the middle of a heat wave, and I couldn't get anyone to come service my system."

Bottom line: LEWIS MECHANICAL’s review profile is generally positive, with especially strong marks for workmanship, sales clarity, and communication. The main softer spots are price transparency and timeline consistency, where some reviewers report billing or follow-up concerns. Overall, complaints are present but appear to be a minority within a large review set.

How this is built: category scores and summaries weigh the company's full published rating record (892 Google reviews averaging 4.9 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 Lewis Mechanical

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.
1
2016
5
'18
3
'19
2
'20

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 Lewis Mechanical

What do customers say in Lewis Mechanical reviews?

We analyzed 653 substantive published customer reviews of Lewis Mechanical in full. The company's Solar.com Installer Score is 7.9/10, 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 Lewis Mechanical installed?

Lewis Mechanical appears as installer of record on 11+ 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 Lewis Mechanical'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.