Best solar companies California South West Builders

South West Builders Reviews

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

2,300verified installs in California utility records*
738recent installs, 2025-26 records*
2012first year in county records
7.2/10Solar.com Score · 21 reviews analyzed

Solar.com Installer Score for South West Builders

One score, computed the same way for every installer. We read the full text of all 21 substantive published South West Builders 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 21 substantive customer review texts (22 published reviews collected).

Google 4.1★ · 22 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.8.8

recency-weighted star ratings across platforms

Sales IntegrityHow clearly and honestly the company explains the system, contract, savings, and incentives before you sign.6.3

3 reviews speak to this · 2 praise · 1 complaints

Price TransparencyHow well the final price, financing terms, and incentive guidance match what customers were led to expect.5.8

6 reviews speak to this · 4 praise · 2 complaints

CommunicationHow reliably the company keeps customers informed and answers questions across sales, installation, and service.6.0

11 reviews speak to this · 8 praise · 3 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.6.8

4 reviews speak to this · 3 praise · 1 complaints

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

9 reviews speak to this · 7 praise · 2 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.7.4

5 reviews speak to this · 3 praise · 2 complaints

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

How does South West Builders 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 South West Builders 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.
Los Angeles County1,55751820125.6 kW29.6%See county ranking →
San Bernardino County2216720176.6 kW31.6%below ranking floor (under 250 installs)
Orange County1615920165.6 kW34.8%below ranking floor (under 250 installs)
Ventura County1391820165.4 kW8.6%below ranking floor (under 250 installs)
Riverside County853720177.5 kW32.9%below ranking floor (under 250 installs)
Alameda County361820194.4 kW36.1%below ranking floor (under 250 installs)
Kern County34720195.9 kW11.8%below ranking floor (under 250 installs)
Santa Clara County31020204.8 kW0.0%below ranking floor (under 250 installs)
Contra Costa County191420205.1 kW57.9%below ranking floor (under 250 installs)
Fresno County17020173.1 kW5.9%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.

South West Builders 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

Sales Integrity6.3/10

Reviewers most often describe the sales experience as helpful and responsive, with reps answering questions and presenting the project in a clear way. There is also a complaint pattern around expectations not matching the final outcome, including a request to cancel a contract after the system did not seem to deliver the expected bill savings.Solar.com's composite of published customer feedback, not a customer quote

Helpful reps and clear Q&A. Some reviewers say the representatives were attentive and answered questions as they came up, which left them feeling comfortable moving forward. Representative review excerpt: "The reps did an amazing job and have answered any questions that came up."

Positive initial sales experience. Several customers describe the proposal and sales interaction as pleasant and straightforward, with a generally favorable impression of the team they dealt with. Representative review excerpt: "Very excited about getting solar installed at our house here in Tarzana very pleased with the representatives and the people we dealt with highly recommended."

Expectation mismatch after signing. One reviewer reports difficulty getting a response after trying to cancel the contract and says the savings they expected did not materialize as hoped. Representative review excerpt: "We have tried to contact them for months now trying to get a response about canceling the contract because honestly our electric bill is still $300+ every month, plus the..."

Price & financing transparency

Price Transparency5.8/10

Feedback on pricing and financing is mixed, with multiple reviewers describing helpful financing options and support in finding terms that worked for them. At the same time, some complaints focus on incentive timing and bills not matching expectations after installation, which leaves transparency concerns in the record.Solar.com's composite of published customer feedback, not a customer quote

Helpful financing options. Several reviewers say the team offered financing choices that made the project more manageable and helped them move ahead with the home improvement work. Representative review excerpt: "I'm a senior citizen , so they actually help me find very good financing terms to take care of this home improvement job."

Flexible terms for customers. Customers also mention being pleased with the range of financing options and the effort to find terms that fit their situation. Representative review excerpt: "They have all types of financing options which helps in this economy, I’m very pleased with everything.."

Complaint about incentive timing and higher bills. A reviewer says incentive timing was described in a way that later did not match the outcome, and another reports that the electric bill rose after installation. Representative review excerpt: "They told him he would get a $25k refund on his taxes so that he could put that back into his payments for the solars and it was all a..."

Communication & coordination

Communication6.0/10

Most reviewers describe the company as responsive and easy to work with, with several noting good customer service and a smooth overall process. The main complaints point to poor scheduling discipline and confusing follow-up, including repeated calls about inspections that had not been arranged.Solar.com's composite of published customer feedback, not a customer quote

Responsive, one-stop coordination. Some reviewers describe the company as a convenient one-stop shop and say the people they dealt with were helpful throughout the process. Representative review excerpt: "They’re basically in one stop shop and the people that I dealt with."

Strong service experience. Others say customer service was excellent and that they felt supported as the project moved forward. Representative review excerpt: "The company came out to install solar panels and the customer service was incredible and the job was completed on time with no issues."

Scheduling and follow-up problems. A complaint pattern in the reviews describes confusing or excessive outreach, including repeated calls about an inspection that had not been scheduled. Representative review excerpt: "On one particularly frustrating day while I was at work, they called me over 15 times back-to-back to say inspectors were at my house — despite never scheduling the visit..."

Timeline reliability

Timeline Reliability6.8/10

Timeline feedback leans positive, with several reviewers saying the work finished on time or without major issues. The main watch-out is an installation-related complaint that suggests timing and execution can create disruption when the job is not managed carefully.Solar.com's composite of published customer feedback, not a customer quote

Completed on time. Some customers say the project was completed on schedule and that they did not run into major problems during the process. Representative review excerpt: "The company came out to install solar panels and the customer service was incredible and the job was completed on time with no issues."

Generally smooth scheduling. Other reviewers describe the process as straightforward and say it moved along without notable delays. Representative review excerpt: "We were really excited to join a long list of homeowners that have decided to use energy efficient products and in this day and age, especially with the way, the..."

Disruptive installation-day issue. One reviewer reports serious disruption during installation, describing roof drilling and debris inside the home. Representative review excerpt: "During the installation of panels on my new home, their team drilled 20+ holes through my roof, which resulted in dust and debris falling directly into my living room and..."

Workmanship & site care

Workmanship6.8/10

Workmanship reviews are mostly positive, with customers praising efficient crews, cleanup, and roof work that met expectations. A smaller set of complaints describes damage concerns and heavy-handed roof penetration, so site care is an important caution area.Solar.com's composite of published customer feedback, not a customer quote

Efficient crew and cleanup. Some reviewers say the crew worked efficiently and cleaned up after the job was done. Representative review excerpt: "His crew was efficient and cleaned up after the job was done."

Roof work praised by customers. Other customers report satisfaction with roof-related work and describe the finished result positively. Representative review excerpt: "We are so pleased with our new roof Tom did a great job."

Damage and debris concerns. A complaint pattern in the reviews describes damage to the home during installation, including holes in the roof and debris inside the living space. Representative review excerpt: "They destroyed my house, drilled holes in the front, holes in my roof …."

Long-term support & performance

Long-Term Support7.4/10

Post-install feedback is generally favorable, with several reviewers saying the system is working well and that they are pleased with the result after installation. Even so, a small number of complaints mention systems not producing as expected and higher-than-expected electric bills, so long-term performance remains an area to monitor.Solar.com's composite of published customer feedback, not a customer quote

Systems reported working well. Some reviewers say their solar and battery setup is working great and that the installation experience was smooth. Representative review excerpt: "we sign for solar panels and batteries- product is working great, installation was smooth no issues."

Satisfied after installation. Other customers describe being very pleased with the panels after the project was completed. Representative review excerpt: "My mother and I are extremely pleased so far with the solar panels if I could rate Southwest solar I would give them an a+ 10 out of 10 so..."

Performance concerns after turn-on. A few reviewers report that the system did not generate the expected output or that the electric bill remained higher than expected after installation. Representative review excerpt: "They already did an energy audit and found that the system is just not working and has never generated what we need for our home."

Bottom line: Solar.com’s review corpus for SOUTH WEST BUILDERS is mixed-to-positive overall, with a headline score of 7.2/10. Reviewers most often praise the responsiveness of the team, the installation experience, and some post-install results, while the main cautions involve pricing expectations, communication follow-through, and a smaller set of installation or performance complaints.

How this is built: category scores and summaries weigh the company's full published rating record (22 Google reviews averaging 4.1 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 South West Builders

Company background from published business information and licensing records.

Also files CPUC records as: South West Solar, Southwest Solar.

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
2012
11
'16
102
'17
77
'18
109
'19
130
'20
139
'21
305
'22
316
'23
439
'24
456
'25
290
'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 South West Builders

What do customers say in South West Builders reviews?

We analyzed 21 substantive published customer reviews of South West Builders 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 South West Builders installed?

South West Builders appears as installer of record on 2,300+ 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 South West Builders' 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.