296 concrete contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Cos Cob: Sunun Masonry LLC, CR Score 65/100; 5.0★ from 114 Google reviews; open 7 days a week.
Best for emergencies (open 24/7): Concrete Cutting Co, posts 24/7 hours; ranked #2 of 296.
Most-reviewed: Long Island Blacktop and Mason Inc, 108 Google reviews at 4.9★, the most of 296 ranked after Sunun Masonry LLC; ranked #13.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
296 Cos Cob concrete contractors are ranked here by CR Score, from ten published factors. 59 are open 24/7, 214 open Saturdays and 134 open Sundays, based on posted hours. The median Google rating is 4.9★ across 296 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Sunun Masonry LLC | 65 | 5.0★ (114) | Stamford, 3 mi away | Sat · Sun · Evenings | Overall |
| 2 | Concrete Cutting Co | 64 | 4.8★ (70) | Port Chester, 4 mi away | 24/7 | Emergencies |
| 3 | Moretti Landscaping & Masonry | 64 | 5.0★ (89) | Greenburgh, 10 mi away | 24/7 | — |
| 4 | Concrete Scan USA | 61 | 5.0★ (70) | Manhattan, 19 mi away | 24/7 | — |
| 5 | RR Paving and Masonry | 60 | 5.0★ (40) | Greenwich, 10 mi away | Sat · Sun · Evenings | — |
| 6 | Luigi Cotumaccio Masonry Contracting | 60 | 5.0★ (77) | Jamaica, 24 mi away | 24/7 | — |
| 7 | Brickstone Construction & Renovation Inc | 60 | 4.6★ (79) | Hicksville, 18 mi away | 24/7 | — |
| 8 | Eden Sidewalk Contractors NYC | 60 | 4.8★ (102) | Harrison, 18 mi away | Sat · Sun · Evenings | — |
| 9 | Concrete Stamping - SMJ | 60 | 5.0★ (16) | White Plains, 9 mi away | 24/7 | — |
| 10 | Grand NJ Construction | 60 | 5.0★ (67) | Cliffside Park, 25 mi away | 24/7 | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Ranked #1 because of its Google rating and trade focus: 5.0★ from 114 Google reviews, listed on Google as “Concrete contractor”.
Based in Port Chester, 4 mi away
Ranked #2 because of its Google rating and trade focus: 4.8★ from 70 Google reviews, listed on Google as “Concrete contractor”.
Based in Greenburgh, 10 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 89 Google reviews, listed on Google as “Concrete contractor”.
Based in Manhattan, 19 mi away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 70 Google reviews, listed on Google as “Concrete contractor”.
Based in Greenwich, 10 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 40 Google reviews, listed on Google as “Concrete contractor”.
Based in Jamaica, 24 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 77 Google reviews, listed on Google as “Concrete contractor”.
Based in Hicksville, 18 mi away
Ranked #7 because of its Google rating and trade focus: 4.6★ from 79 Google reviews, listed on Google as “Concrete contractor”.
Based in Harrison, 18 mi away
Ranked #8 because of its Google rating and trade focus: 4.8★ from 102 Google reviews, listed on Google as “Concrete contractor”.
Based in White Plains, 9 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 16 Google reviews, listed on Google as “Concrete contractor”.
Based in Cliffside Park, 25 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 67 Google reviews, listed on Google as “Concrete contractor”.
Based in New Rochelle, 18 mi away
Ranked #11 because of its Google rating and trade focus: 4.9★ from 76 Google reviews, listed on Google as “Concrete contractor”.
Based in Manhattan, 20 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 72 Google reviews, listed on Google as “Concrete contractor”.
Based in Huntington Station, 16 mi away
Ranked #13 because of its Google rating and trade focus: 4.9★ from 108 Google reviews, listed on Google as “Concrete contractor”.
Based in Englewood, 18 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 30 Google reviews, listed on Google as “Concrete contractor”.
Based in Harrison, 17 mi away
Ranked #15 because of its Google rating and trade focus: 4.8★ from 33 Google reviews, listed on Google as “Concrete contractor”.
Based in Greenburgh, 9 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 45 Google reviews, listed on Google as “Concrete contractor”.
Based in Mahopac, 9 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 21 Google reviews, listed on Google as “Concrete contractor”.
Based in Dix Hills, 22 mi away
Ranked #18 because of its Google rating and trade focus: 4.9★ from 79 Google reviews, listed on Google as “Concrete contractor”.
Based in Edgewater, 19 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 28 Google reviews, listed on Google as “Concrete contractor”.
Based in Port Chester, 4 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 15 Google reviews, listed on Google as “Concrete contractor”.
Based in Norwalk, 9 mi away
Ranked #21 because of its Google rating and trade focus: 4.6★ from 18 Google reviews, listed on Google as “Concrete contractor”.
Based in Larchmont, 11 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 55 Google reviews, listed on Google as “Concrete contractor”.
Based in Harrison, 17 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 27 Google reviews, listed on Google as “Concrete contractor”.
Based in Hunts Point, 18 mi away
Ranked #24 because of its Google rating and trade focus: 4.9★ from 32 Google reviews, listed on Google as “Concrete contractor”.
Based in Stamford, 5 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 17 Google reviews, listed on Google as “Concrete contractor”.
National price ranges in USD, not adjusted for Cos Cob. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Concrete driveway | $2,700 | $6,400 | $14,500 | Per driveway: typical range of customer-reported projects (about $8 to $20 per sq ft). US national range | October 2026 |
We scored 296 Cos Cob concrete contractors on ten factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, not counted as zero. Scores last refreshed October 22, 2026.
Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.
| Factor | Weight | Computed from | In Cos Cob data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Credentials | 15% | Active state license, bond and workers’ comp on file | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list | Measured |
| Recency | 5% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically | Measured |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are | Measured |