The Best Auto Repair Shops in New Hampshire
We graded 10 companies on seven things customers actually report: satisfaction, reliability, workmanship, value, momentum, track record and how owners handle complaints.
From 99,088 Google reviews of 218 top-rated auto repair shops nationwide; 10 of them in New Hampshire. Updated November 1, 2026.
Find the right company for your job
Pick the job — we re-rank companies by how customers rated that exact job.
Best auto repair shops in New Hampshire for vehicle inspection
Clear ✕
Precision ImportsHow Job match is calculatedBuilt only from reviews Google tagged “Vehicle Inspection”:Stars on this job 55%4.98★Number of such jobs 25%41Overall Experts Score 20%93Job match= 95Stars are pulled toward the category average (4.84★) 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.95
South Elm AutomotiveHow Job match is calculatedBuilt only from reviews Google tagged “Vehicle Inspection”:Stars on this job 55%4.89★Number of such jobs 25%28Overall Experts Score 20%95Job match= 87Stars are pulled toward the category average (4.84★) 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.87
Best Union Auto RepairHow Job match is calculatedBuilt only from reviews Google tagged “Vehicle Inspection”:Stars on this job 55%5.00★Number of such jobs 25%5Overall Experts Score 20%85Job match= 76Stars are pulled toward the category average (4.84★) 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.76
Redman's Muffler & AutomotiveHow Job match is calculatedBuilt only from reviews Google tagged “Vehicle Inspection”:Stars on this job 55%5.00★Number of such jobs 25%3Overall Experts Score 20%89Job match= 73Stars are pulled toward the category average (4.84★) 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.73Job match = this company’s ★ on reviews Google tagged “Vehicle Inspection” (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 vehicle inspection
Precision ImportsTook my 2005 Porsche Boxster S to Precision Imports as I was tired of the nonchalant attitude of Porsche Nashua. Excellent customer support. Professional technicians. I've made the switch.
Redman's Muffler & Automotive5/5 Stars — Saved my day! I can't say enough good things about the whole team at Redman's! After having my car inspected there less than a week ago, I had an urgent noise pop up near my front wheel while driving nearby. Rob squeezed me into the shop immediately, and the front desk associates were so polite,…
South Elm AutomotiveGreat independent repair shop! I use them for European and domestic maintenance and repairs, always prompt and professional. Great work at fair prices with OEM parts. Highly recommend
Precision ImportsI was in the process of buying a vehicle remotely from out of state, and needed a reliable pre-purchase inspection. Precision Imports was extremely flexible and able to accommodate the dealership in bringing the vehicle in for inspection. They were exceptionally thorough and identified several issues that I would…
Precision ImportsHave worked with Precision since 2003 servicing and upgrading a wide range of cars: Aston Martin, Lotus, Porsche, Mercedes, Audi, BMW, Mazda, GMC, etc. Excellent technical skills, customer service. Trustworthy and accountable. Highly recommend.
South Elm AutomotiveBest garage in town! Been going there for years. Very VERY trustworthy. Kevin treats everyone like they’re family.
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 auto repair shops).
| # | 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 |  DECI AUTOMOTIVEManchester, NH | A 99How 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%99+58.1Reliability 26%98+25.6Value 15%100+15.2Experts Score= 99Not 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. | AA–AA– | 5.00 | — |
| 2 |  Ruben's Rubber Tire ShopManchester, NH | A 97How 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%97+56.9Reliability 26%95+24.8Value 15%100+15.2Experts Score= 97Not 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. | AA–AA– | 4.97 | — |
| 3 |  E-Z Automotive ServicesManchester, NH | A 97How 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%97+56.9Reliability 26%96+25Value 15%100+15.2Experts Score= 97Not 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. | AA–AA– | 4.98 | — |
| 4 | South Elm AutomotiveManchester, NH | A 95How 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 55%97+52.9Reliability 24%99+24Value 14%100+14.1Replies to reviews 7%57+4Experts Score= 95Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAAC | 4.96 | — |
| 5 | Precision ImportsManchester, NH | A 93How 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 55%92+50.2Reliability 24%90+21.8Value 14%100+14.1Replies to reviews 7%100+7.1Craft & service penalty97−0.3Experts Score= 93Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAAA | 4.89 | — |
| 6 | Redman's Muffler & AutomotiveManchester, NH | A 89How 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 55%95+51.8Reliability 24%92+22.3Value 14%100+14.1Replies to reviews 7%17+1.2Experts Score= 89Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAAF | 4.89 | — |
| 7 |  P & N Automotive ServicesManchester, NH | A 89How 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 55%93+50.7Reliability 24%92+22.3Value 14%100+14.1Replies to reviews 7%30+2.1Craft & service penalty99−0.1Experts Score= 89Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAAD | 4.89 | — |
| 8 | Russell Auto Inc.Manchester, NH | A 88How 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 55%94+51.3Reliability 24%94+22.8Value 14%87+12.3Replies to reviews 7%22+1.6Experts Score= 88Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAAD | 4.88 | — |
| 9 | Best Union Auto RepairManchester, NH | A 85How 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 55%91+49.6Reliability 24%85+20.6Value 14%100+14.1Replies to reviews 7%16+1.1Experts Score= 85Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AA–AAF | 4.89 | — |
| 10 |  Tire WarehouseManchester, NH | B 74How 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 55%73+39.8Reliability 24%62+15Value 14%100+14.1Replies to reviews 7%100+7.1Momentum penalty76−2.4Experts Score= 74Grade B: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | BB–ABA | 4.79 | — |
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”. |
|---|
Auto Repair Shops in New Hampshire at a glance
How the 10 auto repair shops we rated in New Hampshire compare, and what customers praise most.
Experts Score grades
A = score 80+, F = below 20.
- Grade A990%
- Grade B110%
- Grade C00%
- Grade D00%
- Grade F00%
Google ratings
Average stars per company.
- 4.90★ and up440%
- 4.80–4.89★550%
- 4.60–4.79★110%
- Below 4.60★00%
What customers praise
Share of Google review highlights.
- Quality5,94526%
- Professionalism6,68730%
- Responsiveness70%
- Punctuality4,88122%
- Value4,99822%
Was the price fair?
All price verdicts left with reviews.
- Great price5,42845%
- Reasonable6,11550%
- Overpriced2622%
- Not sure3453%
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.