The Best Outdoor Lighting Installers in Diamond Bar, CA
We graded 3 companies on seven things customers actually report: satisfaction, reliability, workmanship, value, momentum, track record and how owners handle complaints.
From 11,098 Google reviews of 68 top-rated outdoor lighting installers nationwide; 3 of them in Diamond Bar, CA. Updated November 2, 2026.
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Best outdoor lighting installers in Diamond Bar for electric car charger installation
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The Recessed Lighting Company™How Job match is calculatedBuilt only from reviews Google tagged “Electric car charger installation”:Stars on this job 55%5.00★Number of such jobs 25%7Overall Experts Score 20%96Job match= 95Stars are pulled toward the category average (4.90★) when a company has few tagged jobs, so 3 perfect reviews don’t beat 80 great ones. 4.3★ scores 0, 5.0★ scores full. Volume is compared with the busiest company for this job.95Job match = this company’s ★ on reviews Google tagged “Electric car charger installation” (shrunk toward the category average when there are few), how many such jobs it has done, and its overall Experts Score.
What customers said about electric car charger installation
The Recessed Lighting Company™Wow! These guys are keepers! I got their name from Tesla to install my car charger, but I learned that’s one of the many areas of expertise! Andrew came and gave me a quote and Victor did the work and I couldn’t ask for anything more! They even moved one of my timers to Make room for the charger! They were on…
The Recessed Lighting Company™Great prices and excellent work. Their quote process is very fast, easy, and hassle free. Their electricians have done little bits of extra work that is slightly outside the original scope when I asked. Great all around company, I dont bother getting multiple quotes anymore
The Recessed Lighting Company™Recessed Lighting installed a Tesla Wall Connector in my home. They are experienced with these units, were very professional and responsive. They did a great job cleaning up after the job. Highly recommended!
The Recessed Lighting Company™Thank you very much! Maurice is an excellent electrician and very dedicated to his job. From the time he started working to the end, I didn't even see a scrap in my garage. I'll give him a 5-star No 10-star. And I'll recommend it to my Friend. Thank you David Tran
The Recessed Lighting Company™This team is absolutely fantastic! I can't say enough good things about them. They installed our recessed lighting Phillips Hue smart lightbulbs, our smart thermostat, and our Tesla wall connector. We were impressed with the way they handled all of the projects. The quality of their work is top notch, they…
The Recessed Lighting Company™Very professional Nicely put Tesla charger in my garage No hole, no mess No wonder they are one of certified electricians on Tesla web site Now I don’t need to search around Tesla charging station . So happy
Overall ratings
Experts Score 0–100Experts Score (0–100)Absolute quality first: recency-weighted star average (≈54%), share of 1–2★ reviews (≈24%), customers’ price verdicts (≈14%), owner replies to critical reviews (≈7%); minus up to 10 points each for complaints flagged in Google review highlights and for a real slide in recent ratings. Hover a company’s score on its page for the full breakdown. and a letter grade per factor (A = top 20% of outdoor lighting installers).
| # | Company | ScoreExperts Score (0–100)Absolute quality first: recency-weighted star average (≈54%), share of 1–2★ reviews (≈24%), customers’ price verdicts (≈14%), owner replies to critical reviews (≈7%); minus up to 10 points each for complaints flagged in Google review highlights and for a real slide in recent ratings. Hover a company’s score on its page for the full breakdown. | FactorsFactor grades, in orderSatisfaction (54%): Recency-weighted star average (2-year half-life), shrunk toward the category mean by review volume; the company’s own lifetime average as the prior; absolute: 4.0★ = 0, 5★ = 100.Reliability (24%): How rarely jobs go badly: share of 1–2★ reviews — 60% the last 24 months (or the 20 newest if fewer), 40% all-time; 0% = 100, 15%+ = 0; the category percentile can only raise it.Craft & service (0%): Google review highlights: Quality, Professionalism, Responsiveness, Punctuality — how rarely reviewers flag them as a negative, per review since highlights began; 0% = 100, 5%+ = 0. Subtracted from the score (up to −10), never averaged in — clean highlights are the norm, not a bonus.Value (14%): Customers’ own price verdicts (Great / Reasonable vs Overpriced) and Value highlights; 65% absolute (all “reasonable” ≈ 80, “great” = 100), the category percentile can only raise it.Momentum (0%): Penalises only a real slide: last-12-month average below lifetime (−0.5★ = 0). Still 4.8★+ over the last year, or steady/improving = 100. Subtracted from the score (up to −10), never averaged in.Replies to reviews (7%): How often the owner publicly replies to reviews under 5★ (1–4★). Needs 3+ such reviews, otherwise not counted; 65% absolute (80%+ replied = 100), the category percentile can only raise it.One letter per factor score: A = 80+, B = 60–79, C = 40–59, D = 20–39, F = below 20. | ★Google star rating as shown on Google Maps. | Typical billMedian bill customers of this company reported in their reviews (needs 3+ priced reviews). |
|---|---|---|---|---|---|
| 1 | The Recessed Lighting Company™Diamond Bar, CA | A 96How the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 59%98+57.5Reliability 26%97+25.3Value 15%100+15.2Craft & service penalty83−1.7Experts Score= 96Not enough data for replies to reviews; its weight is shared by the others.Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAA– | 4.97 | — |
| 2 |  Innovative Light Designs | Landscape & Outdoor Lighting Orange CountyDiamond Bar, CA | B 77How the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 69%80+55.4Reliability 31%76+23.4Craft & service penalty98−0.2Momentum penalty82−1.8Experts Score= 77Not enough data for value, replies to reviews; its weight is shared by the others.Grade B: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | ABA–A– | 4.84 | — |
| 3 |  EverLightsDiamond Bar, CA | B 63How the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 64%74+47Reliability 28%59+16.7Replies to reviews 8%55+4.5Momentum penalty44−5.6Experts Score= 63Not enough data for value; its weight is shared by the others.Grade B: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | BC––CC | 4.76 | — |
What jobs cost
What customers paid, from the price Google asks reviewers to report.
| Job | Low25th percentile: 1 in 4 customers paid less than this. | TypicalMedian of the bill customers reported in their Google review (Google asks reviewers for a price range; we use the middle of each range). | High75th percentile: 1 in 4 customers paid more than this. | FairOf customers who rated the price, the share who chose “Great price” or “Reasonable” rather than “Overpriced”. |
|---|---|---|---|---|
| Light fixture installation | $64 | $238 | $591 | 100% |
| Electrical outlet & switch repair | $93 | $248 | $351 | 100% |
| Electrical outlet & switch installation | $135 | $278 | $415 | 100% |
| Electrical outlet & switch relocation | $135 | $412 | $913 | 96% |
| Electrical wiring installation | $293 | $667 | $1.3k | 99% |
| Electrical panel replacement or upgrading | $1.3k | $2.4k | $4.7k | 100% |
| Installation | $109 | $351 | $888 | 98% |
| Fan installation | $130 | $423 | $556 | 97% |
| Electrical panel repair | $135 | $295 | $529 | 100% |
| HVAC system maintenance | $26 | $78 | $228 | 98% |
| Electric car charger installation | $351 | $808 | $1.3k | 100% |
| HVAC system repair | $78 | $490 | $758 | 100% |
Outdoor Lighting Installers in Diamond Bar, CA at a glance
How the 3 outdoor lighting installers we rated in Diamond Bar, CA compare, and what customers praise most.
Experts Score grades
A = score 80+, F = below 20.
- Grade A133%
- Grade B267%
- Grade C00%
- Grade D00%
- Grade F00%
Google ratings
Average stars per company.
- 4.90★ and up133%
- 4.80–4.89★133%
- 4.60–4.79★133%
- Below 4.60★00%
What customers praise
Share of Google review highlights.
- Quality1,41422%
- Professionalism1,53923%
- Responsiveness1,34120%
- Punctuality1,24619%
- Value1,02716%
Was the price fair?
All price verdicts left with reviews.
- Great price27530%
- Reasonable56962%
- Overpriced212%
- Not sure495%
Price verdicts by year
Share calling it great / reasonable / overpriced.
How we grade
Satisfaction (54%) — Recency-weighted star average (2-year half-life), shrunk toward the category mean by review volume; the company’s own lifetime average as the prior; absolute: 4.0★ = 0, 5★ = 100.
Reliability (24%) — How rarely jobs go badly: share of 1–2★ reviews — 60% the last 24 months (or the 20 newest if fewer), 40% all-time; 0% = 100, 15%+ = 0; the category percentile can only raise it.
Craft & service (penalty, up to −10) — Google review highlights: Quality, Professionalism, Responsiveness, Punctuality — how rarely reviewers flag them as a negative, per review since highlights began; 0% = 100, 5%+ = 0. Subtracted from the score (up to −10), never averaged in — clean highlights are the norm, not a bonus.
Value (14%) — Customers’ own price verdicts (Great / Reasonable vs Overpriced) and Value highlights; 65% absolute (all “reasonable” ≈ 80, “great” = 100), the category percentile can only raise it.
Momentum (penalty, up to −10) — Penalises only a real slide: last-12-month average below lifetime (−0.5★ = 0). Still 4.8★+ over the last year, or steady/improving = 100. Subtracted from the score (up to −10), never averaged in.
Replies to reviews (7%) — How often the owner publicly replies to reviews under 5★ (1–4★). Needs 3+ such reviews, otherwise not counted; 65% absolute (80%+ replied = 100), the category percentile can only raise it.