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ContractorsRanked

Best General Contractors in Stony Brook, NY (2026)

953 general contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Stony Brook: Kentstruction, CR Score 89/100; 5.0★ from 69 Google reviews; open 24/7.

  2. 3

    Best for emergencies (open 24/7): Power Group Construction Inc, posts 24/7 hours; ranked #3 of 953.

  3. 12

    Most-reviewed: Gappsi, Inc., 500 Google reviews at 4.8★, the most of 953 ranked; ranked #12.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

953 Stony Brook general contractors are ranked here by CR Score, from 8 published factors. 109 are open 24/7, 532 open Saturdays and 211 open Sundays, based on posted hours. The median Google rating is 5.0★ across 953 rated businesses.

Most of this list also appears on the General contractors in Brentwood ranking. See General contractors in Brentwood

Top 10 general contractors in Stony Brook at a glance

Top 10 general contractors in Stony Brook at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Kentstruction895.0★ (69)Medford, 10 mi away24/7Overall
2Dynoflip Construction895.0★ (160)Hauppauge, 8 mi awaySat · Sun—
3Power Group Construction Inc885.0★ (80)Deer Park, 15 mi away24/7Emergencies
4David’s Home Improvements885.0★ (21)Centereach, 4 mi away24/7—
5Asphalt D general contracting874.9★ (43)Bayport, 13 mi away24/7—
6Raymundo Construction Corp875.0★ (40)West Hills, 14 mi away24/7—
7Diamond Ridge Builders & Restoration864.9★ (49)Deer Park, 16 mi away24/7—
8RC Contracting865.0★ (65)Huntington, 16 mi away24/7—
9Diverse Repairs Inc865.0★ (83)Glen Cove, 25 mi away24/7—
10Wickman Construction864.4★ (25)Selden, 6 mi away24/7—

The 953 best general contractors in Stony Brook, ranked

Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.

Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

  1. Ranked #1 in Stony Brook

    #1 Kentstruction

    Based in Medford, 10 mi away

    89/100CR Score

    Ranked #1 because of its Google rating and availability: 5.0★ from 69 Google reviews, open 24/7.

    • 5.0★ from 69 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    18 Robinson Ave, Medford, NY 11763
    View profile for Kentstruction(631) 654-0233

  2. #2 Dynoflip Construction

    Based in Hauppauge, 8 mi away

    89/100CR Score

    Ranked #2 because of its Google rating and trade focus: 5.0★ from 160 Google reviews, listed on Google as “Construction company”.

    • 5.0★ from 160 Google reviews
    Hours
    Mon–Sat 6 AM–6 PM · Sun 6 AM–6:30 PM
    Address
    619 Townline Rd, Hauppauge, NY 11788
    View profile for Dynoflip Construction(631) 672-5441

  8. #8 RC Contracting

    Based in Huntington, 16 mi away

    86/100CR Score

    Ranked #8 because of its Google rating and availability: 5.0★ from 65 Google reviews, open 24/7.

    • 5.0★ from 65 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    183 Railroad St, Huntington, NY 11743
    View profile for RC Contracting(516) 522-9302

  12. #12 Gappsi, Inc.

    Based in Smithtown, 8 mi away

    86/100CR Score

    Ranked #12 because of its Google rating and review volume: 4.8★ from 500 Google reviews, the most Google reviews on this list (500).

    • 4.8★ from 500 Google reviews
    Hours
    Mon–Sat 9 AM–4 PM · Sun closed
    Address
    1015 W Jericho Turnpike, Smithtown, NY 11787
    View profile for Gappsi, Inc.(631) 543-1177

  13. #13 Lee Home Improvement

    Based in South Farmingdale, 21 mi away

    85/100CR Score

    Ranked #13 because of its Google rating and trade focus: 5.0★ from 170 Google reviews, listed on Google as “General contractor”.

    • 5.0★ from 170 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    34 Paula Dr, South Farmingdale, NY 11735
    View profile for Lee Home Improvement(516) 984-9862

  15. #15 DJT Development

    Based in Holtsville, 9 mi away

    85/100CR Score

    Ranked #15 because of its Google rating and availability: 4.5★ from 17 Google reviews, open 24/7.

    • 4.5★ from 17 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    194 Morris Ave Suite 50, Holtsville, NY 11742
    View profile for DJT Development(631) 627-3673

  18. #18 New Horizon Homes Inc

    Based in Port Jefferson Station, 5 mi away

    85/100CR Score

    Ranked #18 because of its Google rating and trade focus: 4.9★ from 115 Google reviews, listed on Google as “General contractor”.

    • 4.9★ from 115 Google reviews
    Hours
    Mon–Sat 7 AM–6 PM · Sun closed
    Address
    1430 Hallock Ave, Port Jefferson Station, NY 11776
    View profile for New Horizon Homes Inc(516) 224-7041

How much do general contractors cost in Stony Brook?

Typical prices in USD, adjusted for New York with a published regional index. Each row names its basis and month.

How much do general contractors cost in Stony Brook?
JobLowTypicalHighBasisChecked
Kitchen remodel$16,000$29,600$45,640Per project: typical range of customer-reported remodels (about $75 to $250 per sq ft). US national range × 1.10 Middle Atlantic factor (2025 Cost vs. Value Report)October 2026
Bathroom remodel$7,670$14,020$20,380Per bathroom: typical range of customer-reported remodels. US national range × 1.15 Middle Atlantic factor (2025 Cost vs. Value Report)October 2026

How we ranked Stony Brook general contractors

We scored 953 Stony Brook general contractors on 8 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. Unknown factors are left out of the score, 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.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed fromIn Stony Brook data
Reputation35%Bayesian-adjusted Google star ratingMeasured
Credentials15%Active state license 0.6, bond 0.2, workers’ comp 0.2Not yet collected
Review volume10%log10(reviews + 1) against the list maximumMeasured
Recency10%Share of reviews from the last 12 monthsNot yet collected
Availability10%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%Google main category 1.0, business name 0.7, additional category 0.5Measured
Proximity5%1.0 when based in the city, falling to 0 at the trade’s radiusMeasured
Completeness5%Website, photos, description, hours, claimed profile (0.2 each)Measured

General contractors in Stony Brook: frequently asked questions

Who is the best general contractor in Stony Brook?

By CR Score, the highest-ranked general contractor in Stony Brook, NY is Kentstruction with a CR Score of 89/100. It has 5.0★ from 69 Google reviews. It is open 24/7. Dynoflip Construction (#2) and Power Group Construction Inc (#3) follow. We ranked 953 general contractors on 8 factors, last updated October 22, 2026.

How many general contractors are there in Stony Brook?

ContractorsRanked ranks 953 general contractors serving Stony Brook, NY. Counts are as of October 2026.

Which general contractors in Stony Brook are open 24/7?

109 ranked general contractors in Stony Brook post 24/7 hours. The highest-ranked are Kentstruction (#1), Power Group Construction Inc (#3) and David’s Home Improvements (#4). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which general contractors in Stony Brook work on weekends?

532 of 953 ranked general contractors post Saturday hours and 211 post Sunday hours. The highest-ranked open Saturdays are Kentstruction (#1), Dynoflip Construction (#2) and Power Group Construction Inc (#3). Posted hours are office hours; crews may book weekend jobs separately.

How much does kitchen remodel cost in Stony Brook?

Kitchen remodel typically costs $16,000 to $45,640, with $29,600 typical (Per project: typical range of customer-reported remodels (about $75 to $250 per sq ft). US national range × 1.10 Middle Atlantic factor (2025 Cost vs. Value Report)). The range is adjusted for New York. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do Stony Brook general contractors have?

The median Google rating among 953 rated general contractors in Stony Brook is 5.0★, with a median of 8 reviews. Gappsi, Inc. has the most, 500 reviews, and ranks #12. We adjust ratings for review count, so a few five-star reviews cannot top the list.

How does ContractorsRanked rank general contractors?

Each general contractor gets a 0–100 CR Score from 8 published factors, led by reputation (35%), credentials (15%), review volume (10%) and recency (10%). Factors we cannot measure are left out, not scored as zero. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.

Do general contractors outside Stony Brook count in this ranking?

Yes, if they are within 25 mi of the Stony Brook city center, our service radius for general contractors. Each listing shows where the business is based and how far away it is. Proximity is 5% of the CR Score, so a nearby business gets a small edge.

Update log for Stony Brook

  1. October 2026: CR Scores recalculated for 953 general contractors serving Stony Brook.
  2. October 2026: 11 duplicate listings merged.

More general contractors and Stony Brook pages

Other trades in Stony Brook