The Best Post Construction Cleaning in Connecticut
We graded 10 companies on seven things customers actually report: satisfaction, reliability, workmanship, value, momentum, track record and how owners handle complaints.
From 7,849 Google reviews of 40 top-rated post construction cleaning nationwide; 10 of them in Connecticut. Updated November 1, 2026.
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Best post construction cleaning in Connecticut for office & workplace cleaning
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Clean My Space CTHow Job match is calculatedBuilt only from reviews Google tagged “Office & workplace cleaning”:Stars on this job 55%5.00★Number of such jobs 25%4Overall Experts Score 20%97Job match= 94Stars 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.94
Merry Maids of PlainvilleHow Job match is calculatedBuilt only from reviews Google tagged “Office & workplace cleaning”:Stars on this job 55%5.00★Number of such jobs 25%3Overall Experts Score 20%72Job match= 85Stars 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.85Job match = this company’s ★ on reviews Google tagged “Office & workplace cleaning” (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 office & workplace cleaning
Clean My Space CTWonderful cleaning and they are open to feedback. It is a pleasure to work with them.
Merry Maids of PlainvilleWe are very pleased with Merry Maids. They do a great job cleaning our home! Imani is the best!
Merry Maids of PlainvilleWe have been using Merry Maids for awhile now and they always do a great job! Hardly ever need to contact, and when we have the problem was resolved immediately. Highly recommend
Clean My Space CTHalyna was wonderful & did a fantastic job of cleaning my apartment. On time, Dusted & cleaned everything! I would highly recommend them & I will use them again. Great service
Clean My Space CTLilian and Amanda were great! They cleaned a very big office fairly quickly without compromising the quality of the cleaning. Everything was super clean and smelled so good as they were working their way through the office! They arrived on time and ready to work, definitely appreciate all their hard work! Would use again and recommend to others!
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 post construction cleaning).
| # | 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 |  Nanda's Cleaning ServicesNew Britain, CT | 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 69%99+68.5Reliability 31%98+30.2Experts Score= 99Not 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––A– | 5.00 | — |
| 2 |  Full Cleaning LLCNew Britain, CT | A 98How 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%98+25.6Value 15%100+15.2Craft & service penalty99−0.1Experts Score= 98Not 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– | 4.99 | $149 |
| 3 | Clean My Space CTMeriden, CT | 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 55%97+52.9Reliability 24%98+23.8Value 14%100+14.1Replies to reviews 7%100+7.1Craft & service penalty95−0.5Experts Score= 97Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAAA | 4.96 | $250 |
| 4 |  J & G Cleaning and MaintenanceNew Britain, CT | 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%96+56.3Reliability 26%93+24.3Value 15%100+15.2Experts 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 | — |
| 5 |  Jani-King | Commercial Cleaning & Janitorial Services in HartfordNew Britain, CT | 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 64%92+58.4Reliability 28%99+28Replies to reviews 8%100+8.2Experts Score= 95Not enough data for value; 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 | 4.90 | — |
| 6 |  Clean My Space CT of West HartfordNew Britain, CT | 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 59%97+56.9Reliability 26%98+25.6Value 15%79+12Experts Score= 94Not 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–BA– | 4.97 | $183 |
| 7 |  BNF Construction LLCNew Britain, CT | 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%95+51.8Reliability 24%93+22.5Value 14%100+14.1Replies to reviews 7%61+4.3Experts Score= 93Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AA–AAB | 4.96 | $13k |
| 8 |  Valentim Cleaning ServicesNew Britain, CT | A 87How 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%88+51.7Reliability 26%78+20.3Value 15%100+15.2Craft & service penalty99−0.1Experts Score= 87Not 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. | ABAAA– | 4.90 | — |
| 9 |  A1 Home ImprovementNew Britain, CT | A 86How 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%90+49.1Reliability 24%85+20.6Value 14%100+14.1Replies to reviews 7%40+2.8Craft & service penalty97−0.3Experts Score= 86Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAAC | 4.91 | $18k |
| 10 | Merry Maids of PlainvilleNew Britain, CT | B 72How 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%86+46.9Reliability 24%81+19.6Value 14%60+8.5Replies to reviews 7%24+1.7Craft & service penalty60−4Momentum penalty97−0.3Experts Score= 72Grade B: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AABBAD | 4.80 | $193 |
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”. |
|---|---|---|---|---|
| Standard cleaning | $164 | $189 | $247 | 99% |
| Deep clean | $245 | $306 | $421 | 98% |
| General housekeeping | $164 | $209 | $285 | 99% |
| Moving-related cleaning | $221 | $277 | $340 | 98% |
| Power/pressure washing | $251 | $516 | $838 | 98% |
| Roof installation | $13k | $18k | $28k | 100% |
| Interior & exterior window cleaning | $183 | $250 | $373 | 100% |
| Office & workplace cleaning | $114 | $139 | $191 | 97% |
| HVAC duct & vent cleaning | $131 | $164 | $222 | 100% |
| Roof repair | $10k | $14k | $17k | 100% |
| Home maintenance & repairs | $164 | $250 | $705 | 100% |
| General construction | $365 | $614 | $1.1k | 100% |
Post Construction Cleaning in Connecticut at a glance
How the 10 post construction cleaning we rated in Connecticut 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 up990%
- 4.80–4.89★110%
- 4.60–4.79★00%
- Below 4.60★00%
What customers praise
Share of Google review highlights.
- Quality1,24922%
- Professionalism1,28023%
- Responsiveness1,07619%
- Punctuality1,08419%
- Value92717%
Was the price fair?
All price verdicts left with reviews.
- Great price48135%
- Reasonable84161%
- Overpriced191%
- Not sure473%
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.