Analyzing 5,890,1035.9M ReviewsFor 16,26616.3K Experts

Experts Reviews · Company report
SG SMOG CHECK CENTER logoHow 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%34+21.6Reliability 28%2+0.6Replies to reviews 8%100+8.2Craft & service penalty91−0.9Momentum penalty0−10Experts Score= 20Not enough data for value; its weight is shared by the others.Grade D: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.20SCORE

SG SMOG CHECK CENTER

Vallejo, CA · Grade DLetter from the Experts Score: A = 80+, B = 60–79, C = 40–59, D = 20–39, F = under 20. · #35Position by Experts Score among all companies we track in this category. of 35 well inspectors · 4.6★ from 253 Google reviews

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Report card

Percentile vs other well inspectors (100 = best)Each factor is scored 0–100 on absolute terms (star average, share of 1–2★ reviews, price verdicts…); standing within the category can only raise it, never lower it.. Strongest: replies to reviews and craft & service; weakest: momentum.

SatisfactionSatisfaction · 54% of the scoreRecency-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.SG SMOG CHECK CENTER is better than 34% of well inspectors.D
34
ReliabilityReliability · 24% of the scoreHow 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.SG SMOG CHECK CENTER is better than 2% of well inspectors.F
2
Craft & serviceCraft & service · 0% of the scoreGoogle 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.SG SMOG CHECK CENTER is better than 91% of well inspectors.A
91
ValueValue · 14% of the scoreCustomers’ own price verdicts (Great / Reasonable vs Overpriced) and Value highlights; 65% absolute (all “reasonable” ≈ 80, “great” = 100), the category percentile can only raise it.SG SMOG CHECK CENTER is better than —% of well inspectors.–
—
MomentumMomentum · 0% of the scorePenalises 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.SG SMOG CHECK CENTER is better than 0% of well inspectors.F
0
Replies to reviewsReplies to reviews · 7% of the scoreHow 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.SG SMOG CHECK CENTER is better than 100% of well inspectors.A
100

Reviews for your job

Customers hired SG SMOG CHECK CENTER for 2 kinds of job.

SG SMOG CHECK CENTER for emissions testing

Clear ✕
Jobs reviewedHow many Google reviews are tagged with this job.2
★ on this jobAverage stars on the reviews where the customer tagged this exact job (Google’s “Services” field).5.00
Usually paidThe price range customers picked most often for this job.—

All 2 Google reviews tagged “Emissions testing”

MitchellLocal Guide · 12 reviewsTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 2 years ago★★★★★

Been using them for years now. Matter of fact, i have one i'll be taking for a smig check, today.

Emissions testingRegistration renewalSmog certification
Star5 reviewsTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 3 years ago★★★★★

My go to place for smog! I always take my vehicles in to SG Smog! I’ve been to both the Vallejo and Fairfield locations. It very conveniently located by the DMV. Customer service is always great. They are very helpful and friendly. Price is very affordable compared to other local smog shops. I highly recommend SG Smog!

Emissions testingSmog certification

Price

Not enough reviews with a price yet.

Price verdictsGoogle asks reviewers whether the price was great, reasonable or overpriced; these are their answers.

Great price 0%Reasonable 0%Overpriced 0%Not sure 0%

Jobs customers hired them for

JobReviewsCategory typical
Smog certification8—
Emissions testing2—

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