Best solar companies California Countywide Mechanical Systems

Countywide Mechanical Systems Reviews

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

275verified installs in California utility records*
0recent installs, 2025-26 records*
2009first year in county records
5.3/10Solar.com Score · 62 reviews analyzed

Solar.com Installer Score for Countywide Mechanical Systems

One score, computed the same way for every installer. We read the full text of all 62 substantive published Countywide Mechanical Systems review texts across every platform and measure what customers actually report. Not a survey. Not a sample. Never for sale.

Solar.com Installer Score

5.3/10

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

Synthesized from 62 substantive customer review texts (74 published reviews collected).

Google 3.0★ · 38 reviewsYelp 2.7★ · 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.4.8

recency-weighted star ratings across platforms

Sales IntegrityHow clearly and honestly the company explains the system, contract, savings, and incentives before you sign.6.4

10 reviews speak to this · 6 praise · 4 complaints

Price TransparencyHow well the final price, financing terms, and incentive guidance match what customers were led to expect.4.5

17 reviews speak to this · 2 praise · 15 complaints

CommunicationHow reliably the company keeps customers informed and answers questions across sales, installation, and service.4.8

24 reviews speak to this · 7 praise · 17 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.6.3

10 reviews speak to this · 6 praise · 4 complaints

WorkmanshipThe quality, professionalism, neatness, and property care of the physical installation.6.0

17 reviews speak to this · 9 praise · 8 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.5.0

14 reviews speak to this · 8 praise · 6 complaints

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

How does Countywide Mechanical Systems 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 Countywide Mechanical Systems 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 Diego County275020096.3 kW0.0%See county ranking →

% 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.

Countywide Mechanical Systems 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 Integrity6.4/10

Reviewers most often describe the sales process as informed and low-pressure, with several saying proposals were explained clearly and expectations were set well. At the same time, a smaller set of reviews raises concerns about dishonesty, intrusive messaging, or contract-related disappointment.Solar.com's composite of published customer feedback, not a customer quote

Clear, low-pressure sales. Several reviewers say the sales team took time to explain the system and savings without pushing hard, and that the experience felt straightforward. Others note the salesperson was patient and did not overstate what the research would support. Representative review excerpt: "I don't like pressure salespeople, at all, and was happy that he took the time to inform instead of hard sell."

Helpful proposal guidance. Some customers describe the proposal stage as knowledgeable and easy to understand, especially around long-term savings and system design. These reviews suggest the consultative side of the sale was a strength for at least part of the customer base. Representative review excerpt: "Dave was very knowledgeable and explained the long term saving of buying solar now verses later ."

Isolated integrity complaints. A smaller group of reviewers reports concerns about honesty or advises caution when dealing with the company. These complaints indicate that the sales experience was not consistently viewed as trustworthy by all customers. Representative review excerpt: "I despise dishonesty and feel that it has the tendency to spread like wildfire in a company when you have those on your staff whom feel it is OK to..."

Price & financing transparency

Price Transparency4.5/10

This category trends negative, with complaints far outweighing praise. Reviewers most often describe surprise charges, unclear final pricing, and difficulty getting responses when they questioned billing or financing details. A few positive reviews mention favorable pricing or a payment structure tied to system activation.Solar.com's composite of published customer feedback, not a customer quote

Surprise billing concerns. Multiple reviewers say they did not know the full price until the bill arrived or were charged more than expected. Others describe difficulty getting answers after questioning the final amount. Representative review excerpt: "You only know the full price when the bill arrives a day or so later."

Communication around charges. Some reviews connect pricing problems with poor follow-up, including unanswered emails and being passed around when trying to resolve a bill. The recurring theme is that customers wanted more clarity on what they would owe and when. Representative review excerpt: "They overcharged me and it’s impossible to to get them to answer my emails."

Payment timing praised by some. A small number of customers say the payment structure felt favorable, including a deposit upfront and no further payment until the system was online producing energy. Another reviewer says pricing was in line with expectations and the warranty was strong. Representative review excerpt: "Here is why I went with Countywide: Payment: After the $1K deposit you don't pay anything else until the system is online producing energy."

Communication & coordination

Communication4.8/10

Reviewers describe uneven communication, with a substantial number reporting missed calls, slow follow-up, or difficulty getting issues escalated. Positive reviews do mention managers or staff stepping in to resolve problems and coordinate work, but those comments are outweighed by complaints about responsiveness.Solar.com's composite of published customer feedback, not a customer quote

No-response and runaround complaints. Many reviewers say calls or emails went unanswered, or that they were repeatedly passed along without resolution. The pattern suggests that project ownership and customer support were inconsistent for a noticeable share of customers. Representative review excerpt: "Reached out and nobody ever called back."

Escalation sometimes helped. A few customers report that managers did call back and make adjustments after a complaint. These reviews suggest the company could respond constructively in some cases once issues were escalated. Representative review excerpt: "I complained, the manager called me, was very reasonable and made the adjustments."

Coordinated on some projects. Some reviewers say the team managed bids, permits, installation, and activation in an organized way. Those comments point to better coordination on some jobs, even though communication problems remain a recurring concern. Representative review excerpt: "Kevin and his team quickly and efficiently managed all aspects of the bid, permits, installation and flipping the switch with sdge."

Timeline reliability

Timeline Reliability6.3/10

Timeline feedback is somewhat positive overall, with several reviewers saying permits, installation, and activation were completed in a reasonable timeframe. Still, a smaller set reports missed appointments, repeated visits, or jobs that stretched on longer than expected.Solar.com's composite of published customer feedback, not a customer quote

Process finished on schedule for some. Some customers say the permit and installation process took only a few months and moved efficiently through activation. These reviews suggest the company could keep projects moving at a workable pace on at least some jobs. Representative review excerpt: "It took only a few months for the whole process of permits and installation, countywide was very professional and we are very pleased with the results ."

End-to-end coordination praised. A few reviewers describe the team as managing the full process quickly, including the handoff to utility activation. That kind of feedback points to decent scheduling and coordination when the job stayed on track. Representative review excerpt: "Kevin and his team quickly and efficiently managed all aspects of the bid, permits, installation and flipping the switch with sdge."

Delays and repeated visits. Other reviews mention missed appointments, multiple service visits, or jobs that dragged on for months. Those reports show that schedule reliability was not consistent across all projects. Representative review excerpt: "Months of trial and error and missing appointments and a thousand dollars later, the AC was not fixed and they finally told me that it needs replacement and it will..."

Workmanship & site care

Workmanship6.0/10

Workmanship reviews are mixed but lean slightly positive. Several customers describe professional crews and respectful jobsite behavior, while others report property damage, rough conduct, or follow-up issues that were frustrating to resolve.Solar.com's composite of published customer feedback, not a customer quote

Professional crews reported. Some reviewers say the installation crew was professional, respectful of the home, and efficient. These comments suggest the field teams delivered solid workmanship on a number of jobs. Representative review excerpt: "The installation crew led by Steve was professional, respectful of my home and efficient."

Respectful and efficient installation. A few customers specifically praise the crew for being great to work with and completing the installation cleanly. This indicates that site care was a positive part of the experience for some reviewers. Representative review excerpt: "Steve and the rest of the install crew were great too!"

Damage and professionalism concerns. Other reviewers report broken roof tiles, marks on property, or technician behavior they found unprofessional. These complaints show that site care and on-site conduct were not consistently strong. Representative review excerpt: "I have a tile roof & some were broken during the installation."

Long-term support & performance

Long-Term Support5.0/10

Post-install feedback is mixed and leans negative, with praise for responsive service offset by complaints about unresolved issues and repair visits. Reviewers also raise warranty and follow-up concerns, suggesting long-term support was uneven after turn-on.Solar.com's composite of published customer feedback, not a customer quote

Responsive fixes for some systems. Several reviewers say staff quickly resolved issues and provided helpful service after installation. Others note that systems continued working well over time and that the service attitude was strong. Representative review excerpt: "Alex was great, learned a lot as he quickly fixed our issue."

Longer-term reliability praised. A few customers report that their systems were still working well years later and that the warranty terms were favorable. These comments show that some owners had a positive experience after the initial install. Representative review excerpt: "I have been working with these folks for many years and everything they have helped me with is still working and their service is excellent and their attitude is exemplary..."

Warranty and repair frustrations. Other reviewers describe repeated repair visits, difficulty fixing problems, or concerns about warranty support. These reports indicate that post-install service was not always able to resolve issues efficiently. Representative review excerpt: "they, about 6 repairmen came by several days for several hours,all of them coudln't fix the problem the process was an extremely nuisance and a pain to work with."

Bottom line: COUNTYWIDE MECHANICAL SYSTEMS has a mixed review profile on Solar.com, with a 5.3/10 overall score across Google and Yelp. Reviewers are more positive about the initial sales approach and some install timelines than about pricing transparency, communication, and long-term support. The most consistent complaints center on billing clarity, follow-up, and resolving issues after the job is complete.

How this is built: category scores and summaries weigh the company's full published rating record (38 Google reviews averaging 3.0 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 Countywide Mechanical Systems

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.
3
2009
1
'10
11
'11
9
'12
31
'13
41
'14
74
'15
56
'16
37
'17
16
'18

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 Countywide Mechanical Systems

What do customers say in Countywide Mechanical Systems reviews?

We analyzed 62 substantive published customer reviews of Countywide Mechanical Systems in full. The company's Solar.com Installer Score is 5.3/10, 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 Countywide Mechanical Systems installed?

Countywide Mechanical Systems appears as installer of record on 275+ 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 Countywide Mechanical Systems' 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.