26 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Riverhead: Suburban Exterminating, CR Score 86/100; 4.8★ from 148 Google reviews; open Saturdays until 4 PM.
Best for emergencies (open 24/7): Eli Construction Services Inc, posts 24/7 hours; ranked #4 of 26.
Most-reviewed: Healthy Basement Systems, 601 Google reviews at 4.8★, the most of 26 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
26 Riverhead insulation contractors are ranked here by CR Score, from 8 published factors. 2 are open 24/7, 15 open Saturdays and 4 open Sundays, based on posted hours. The median Google rating is 4.9★ across 26 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Suburban Exterminating | 86 | 4.8★ (148) | Riverhead | Sat | Overall |
| 2 | JP McHale Pest Management | 84 | 4.9★ (219) | Hampton Bays, 11 mi away | Sat | — |
| 3 | Healthy Basement Systems | 84 | 4.8★ (601) | Medford, 17 mi away | Sat · Evenings | Most reviews |
| 4 | Eli Construction Services Inc | 84 | 5.0★ (5) | Calverton, 9 mi away | 24/7 | Emergencies |
| 5 | PatchItUP of Suffolk County - For Every Type of Drywall Damage | 80 | 4.9★ (252) | Babylon, 1 mi away | Sat | — |
| 6 | Thermathec | 79 | 4.2★ (10) | Shirley, 13 mi away | Sat · Sun · Evenings | — |
| 7 | Ivy Insulation | 79 | 5.0★ (48) | Patchogue, 22 mi away | Sat · Evenings | — |
| 8 | Smart Energy Savers LLC | 78 | 4.6★ (11) | Woodbridge, 22 mi away | Sat · Sun · Evenings | — |
| 9 | Paramount Insulation | 78 | 5.0★ (21) | Centereach, 19 mi away | Sat · Evenings | — |
| 10 | Daddy Spray Foam Insulation Corporation | 77 | 5.0★ (18) | Medford, 17 mi away | Sat | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and trade focus: 4.8★ from 148 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Hampton Bays, 11 mi away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 219 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Medford, 17 mi away
Ranked #3 because of its Google rating and review volume: 4.8★ from 601 Google reviews, the most Google reviews on this list (601).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Calverton, 9 mi away
Ranked #4 because of its Google rating and availability: 5.0★ from 5 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Babylon, 1 mi away
Ranked #5 because of its Google rating and review volume: 4.9★ from 252 Google reviews, 252 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Shirley, 13 mi away
Ranked #6 because of its Google rating and trade focus: 4.2★ from 10 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Patchogue, 22 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 48 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Woodbridge, 22 mi away
Ranked #8 because of its Google rating and trade focus: 4.6★ from 11 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Centereach, 19 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 21 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Medford, 17 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 18 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Coram, 18 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 83 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Holbrook, 24 mi away
Ranked #12 because of its Google rating and trade focus: 4.7★ from 387 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Boyle Heights, 22 mi away
Ranked #13 because of its Google rating and availability: 4.9★ from 60 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Calverton, 7 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Middle Island, 16 mi away
Ranked #15 because of its Google rating and trade focus: 4.1★ from 9 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Riverhead
Ranked #16 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bohemia, 25 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Insulation contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Springs, 1 mi away
Ranked #18 because of its Google rating and availability: 3.7★ from 6 Google reviews, open 7 days a week.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Shirley, 13 mi away
Ranked #19 because of its Google rating and review volume: 4.7★ from 35 Google reviews, 35 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Center Moriches, 10 mi away
Ranked #20 because of its Google rating and trade focus: 4.3★ from 6 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Riverhead
Ranked #21 because of its Google rating and review volume: 4.5★ from 52 Google reviews, 52 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bensonhurst, 22 mi away
Ranked #22 because of its Google rating and trade focus: 4.6★ from 13 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Central Islip, 16 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 12 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Holbrook, 24 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bayport, 17 mi away
Ranked #25 because of its Google rating and trade focus: 4.3★ from 7 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
#1 to #25 are shown in full above. Here are #26 to #26, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Zavza Seal LLC | 68 | 5.0★ (11) | 11 mi |
20 more insulation contractors within 25 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| Buena Vista Insulation | 5.0★ (1) | 18 mi |
| Delfino Insulation Co Inc | 5.0★ (2) | 23 mi |
| Energy Saving Solutions NY | 1.0★ (1) | 14 mi |
| Energy Saving Solutions NY | 13 mi | |
| Exterior insulation & finish system. corp | 13 mi | |
| GFES drywall, sprayfoam and insulation | 13 mi | |
| Hailey Insulation Corp | 5.0★ (1) | 13 mi |
| Hailey Insulation Corporation | 5.0★ (1) | 23 mi |
| INSULATION PROS NYC | 5.0★ (1) | 19 mi |
| Island Spray Foam Systems | 13 mi | |
| J&G Contractor, Inc. | 5.0★ (1) | 17 mi |
| Kaskade Home | 1.0★ (1) | 13 mi |
| LI Craftsmanship Inc | 5.0★ (1) | 24 mi |
| NY Insulation | 10 mi | |
| Personal Touch Improvements, Inc. | 1 mi | |
| R.W. Mulligan | 3.8★ (14) | In Riverhead |
| Spray Kings Insulation | 5.0★ (1) | 10 mi |
| T & T Insulation LLC | 5.0★ (1) | 13 mi |
| T & T Insulation LLC | 14 mi | |
| Zavza Seal LLC | 13 mi |
National price ranges in USD, not adjusted for Riverhead. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Attic insulation | $1,700 | $2,100 | $2,500 | Per attic: typical range of customer-reported jobs (about $1 to $3 per sq ft). US national range | October 2026 |
We scored 26 Riverhead insulation 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.
| Factor | Weight | Computed from | In Riverhead data |
|---|---|---|---|
| Reputation | 35% | Bayesian-adjusted Google star rating | Measured |
| Credentials | 15% | Active state license 0.6, bond 0.2, workers’ comp 0.2 | Not yet collected |
| Review volume | 10% | log10(reviews + 1) against the list maximum | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 10% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | Google main category 1.0, business name 0.7, additional category 0.5 | Measured |
| Proximity | 5% | 1.0 when based in the city, falling to 0 at the trade’s radius | Measured |
| Completeness | 5% | Website, photos, description, hours, claimed profile (0.2 each) | Measured |