The Best Tank Installation in North Carolina
We graded 9 companies on seven things customers actually report: satisfaction, reliability, workmanship, value, momentum, track record and how owners handle complaints.
From 8,123 Google reviews of 24 top-rated tank installation nationwide; 9 of them in North Carolina. Updated November 1, 2026.
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Best tank installation in North Carolina for a/c system maintenance
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Delcor Inc. Heating Cooling PlumbingHow Job match is calculatedBuilt only from reviews Google tagged “A/C system maintenance”:Stars on this job 55%5.00★Number of such jobs 25%46Overall Experts Score 20%73Job match= 93Stars 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.93
NuBlue Electric, Plumbing and AirHow Job match is calculatedBuilt only from reviews Google tagged “A/C system maintenance”:Stars on this job 55%5.00★Number of such jobs 25%15Overall Experts Score 20%80Job match= 85Stars 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.85Job match = this company’s ★ on reviews Google tagged “A/C system maintenance” (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 a/c system maintenance
NuBlue Electric, Plumbing and AirThis was the first time using this Company and we were very pleased with both the Tech’s Ryan and Wade both were very nice, friendly and professional and answered all our questions. They were on time within their time slot and called before they came. They came out to just do a Service call and found an issue and…
Delcor Inc. Heating Cooling Plumb…Water heater flush and air conditioner and heater maintenance yearly service. Very pleased.
NuBlue Electric, Plumbing and AirHe was very professional & gave a thorough & detailed evaluation... Then fixed the leak..
Delcor Inc. Heating Cooling Plumb…When our AC wasn’t working, we called and got a same-day service appointment. Victor arrived early, was thorough in his assessment, and located the issue quickly. Luckily for us, it was a fast and affordable fix and he had the necessary tools with him. He also showed us how to keep up the maintenance for it to…
NuBlue Electric, Plumbing and AirRyan was super nice and informative. He was able to make sure our AC was running in peak condition during this extreme heat
Delcor Inc. Heating Cooling Plumb…Victor helped us tremendously! Went above and beyond telling us about our unit and recommendations for what to do. Answered our call right away and came on time. Nothing better than getting great help when the air conditioning goes out in summer.
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 tank installation).
| # | 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 |  Roto-Rooter Plumbing & Water CleanupGreenville, NC | A 94How 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%95+65.8Reliability 31%93+28.6Experts Score= 94Not enough data for value, 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–––– | 4.91 | — |
| 2 |  Bennie A Moore Septic Tank ServicesGreenville, NC | 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%96+52.4Reliability 24%94+22.8Value 14%100+14.1Replies to reviews 7%48+3.4Craft & service penalty99−0.1Experts Score= 93Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAAC | 4.93 | $472 |
| 3 |  Plumbs Up Plumbing - Greenville, NCGreenville, NC | A 90How 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%92+22.3Value 14%100+14.1Replies to reviews 7%68+4.8Craft & service penalty87−1.3Experts Score= 90Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAAB | 4.88 | $429 |
| 4 | NuBlue Electric, Plumbing and AirGreenville, NC | A 80How 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%83+45.3Reliability 24%77+18.7Value 14%90+12.7Replies to reviews 7%51+3.6Craft & service penalty94−0.6Experts Score= 80Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | ABAAAC | 4.83 | $556 |
| 5 |  Roger's Septic Tank ServicesGreenville, NC | 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%74+40.4Reliability 24%73+17.7Value 14%73+10.3Replies to reviews 7%82+5.8Craft & service penalty98−0.2Experts Score= 74Grade B: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | BBABAA | 4.52 | $414 |
| 6 |  Mr. Rooter Plumbing of GreenvilleGreenville, NC | B 73How 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%81+44.2Reliability 24%91+22.1Value 14%47+6.6Replies to reviews 7%13+0.9Momentum penalty97−0.3Experts Score= 73Grade B: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AA–CAF | 4.81 | $542 |
| 7 | Delcor Inc. Heating Cooling PlumbingGreenville, NC | B 73How 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%75+40.9Reliability 24%60+14.5Value 14%100+14.1Replies to reviews 7%72+5.1Craft & service penalty81−1.9Experts Score= 73Grade B: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | BBAAAB | 4.70 | $274 |
| 8 |  Mr. Rooter Plumbing of Pitt CountyGreenville, NC | B 71How 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%75+40.9Reliability 24%72+17.5Value 14%85+12Replies to reviews 7%26+1.8Craft & service penalty84−1.6Experts Score= 71Grade B: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | BBAAAD | 4.70 | $529 |
| 9 |  Accurate PlumbingGreenville, NC | C 55How 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%67+36.5Reliability 24%56+13.6Value 14%89+12.6Replies to reviews 7%10+0.7Craft & service penalty17−8.3Experts Score= 55Grade C: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | BCFAAF | 4.53 | — |
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”. |
|---|---|---|---|---|
| Plumbing pipe repair | $295 | $453 | $755 | 96% |
| Drain cleaning | $276 | $366 | $493 | 94% |
| Plumbing leak detection | $172 | $394 | $888 | 98% |
| Toilet repair | $227 | $322 | $585 | 95% |
| Water heater installation | $1.2k | $1.9k | $2.5k | 97% |
| Plumbing leak repair | $209 | $393 | $680 | 96% |
| Outdoor plumbing system repair | $479 | $1.1k | $1.9k | 98% |
| Faucet installation | $352 | $548 | $1.8k | 98% |
| Faucet repair | $228 | $325 | $858 | 96% |
| Sewer repair | $503 | $932 | $1.9k | 94% |
| HVAC system maintenance | $78 | $228 | $420 | 95% |
| Water heater repair | $402 | $478 | $591 | 94% |
Tank Installation in North Carolina at a glance
How the 9 tank installation we rated in North Carolina compare, and what customers praise most.
Experts Score grades
A = score 80+, F = below 20.
- Grade A444%
- Grade B444%
- Grade C111%
- Grade D00%
- Grade F00%
Google ratings
Average stars per company.
- 4.90★ and up222%
- 4.80–4.89★333%
- 4.60–4.79★222%
- Below 4.60★222%
What customers praise
Share of Google review highlights.
- Quality1,73520%
- Professionalism2,11624%
- Responsiveness1,89422%
- Punctuality1,77120%
- Value1,26814%
Was the price fair?
All price verdicts left with reviews.
- Great price34527%
- Reasonable76359%
- Overpriced615%
- Not sure1189%
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.