88/100CR Score
Ranked #1 because of its Google rating and availability: 5.0★ from 76 Google reviews, open 24/7.
- 5.0★ from 76 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Best Insulation Contractors in Trenton, NJ (2026)
89 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Trenton: Randy & Bills Wildlife Control LLC, CR Score 88/100; 5.0★ from 76 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): ThermoSpray, posts 24/7 hours; ranked #2 of 89.
- 4
Most-reviewed: EcoShield Pest Solutions, 4,668 Google reviews at 4.9★, the most of 89 ranked; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
89 Trenton insulation contractors are ranked here by CR Score, from 8 published factors. 12 are open 24/7, 58 open Saturdays and 19 open Sundays, based on posted hours. The median Google rating is 4.9★ across 89 rated businesses.
Top 10 insulation contractors in Trenton at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Randy & Bills Wildlife Control LLC | 88 | 5.0★ (76) | Lakewood, 10 mi away | 24/7 | Overall |
| 2 | ThermoSpray | 85 | 5.0★ (23) | Bayonne, 10 mi away | 24/7 | Emergencies |
| 3 | Princeton Air Conditioning | 85 | 4.7★ (2,172) | Princeton, 8 mi away | 24/7 | — |
| 4 | EcoShield Pest Solutions | 84 | 4.9★ (4,668) | Maple Shade, 18 mi away | Sat | Most reviews |
| 5 | Gunner Insulation LLC | 82 | 4.9★ (117) | Levittown, 6 mi away | Sat | — |
| 6 | ROM Attic Insulation & Roofing Services Co, NJ | 81 | 4.9★ (8) | Trenton | 24/7 | — |
| 7 | Mammoth Solutions | 81 | 5.0★ (22) | Horsham, 14 mi away | Sat · Sun | — |
| 8 | Green Care Air Ducts and Chimney Services | 80 | 5.0★ (194) | East Brunswick, 21 mi away | 24/7 | — |
| 9 | Koala Insulation of Mercer & Middlesex Counties | 80 | 5.0★ (96) | Trenton | — | — |
| 10 | Pujols Roofing & Siding LLC | 80 | 5.0★ (60) | Trenton | Sat · Sun · Evenings | — |
The 89 best insulation contractors in Trenton, 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.
#2 ThermoSpray
Based in Bayonne, 10 mi away
85/100CR ScoreRanked #2 because of its Google rating and availability: 5.0★ from 23 Google reviews, open 24/7.
- 5.0★ from 23 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Princeton, 8 mi away
85/100CR ScoreRanked #3 because of its Google rating and availability: 4.7★ from 2,172 Google reviews, open 24/7.
- 4.7★ from 2,172 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 39 Everett Dr #4, Princeton Junction, NJ 08550
Based in Maple Shade, 18 mi away
84/100CR ScoreRanked #4 because of its Google rating and review volume: 4.9★ from 4,668 Google reviews, the most Google reviews on this list (4,668).
- 4.9★ from 4,668 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat 9 AM–1 PM · Sun closed
- Address
- 100 Pike Rd Bldg B Unit 2, Mt Laurel Township, NJ 08054
Based in Levittown, 6 mi away
82/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.9★ from 117 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 117 Google reviews
- Hours
- Mon–Sat 7 AM–3 PM · Sun closed
- Address
- 8595 Old Bristol Pike, Tullytown, PA 19007
Based in Trenton
81/100CR ScoreRanked #6 because of its Google rating and availability: 4.9★ from 8 Google reviews, open 24/7.
- 4.9★ from 8 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1008 Lalor St, Trenton, NJ 08610
Based in Horsham, 14 mi away
81/100CR ScoreRanked #7 because of its Google rating and trade focus: 5.0★ from 22 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 22 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat–Sun 10 AM–4 PM
- Address
- 1615 Loretta Ave, Feasterville-Trevose, PA 19053
Based in East Brunswick, 21 mi away
80/100CR ScoreRanked #8 because of its Google rating and availability: 5.0★ from 194 Google reviews, open 24/7.
- 5.0★ from 194 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 87 Clay St, North Brunswick Township, NJ 08902
Based in Trenton
80/100CR ScoreRanked #9 because of its Google rating and trade focus: 5.0★ from 96 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 96 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 314 Cortland St, Trenton, NJ 08638
Based in Trenton
80/100CR ScoreRanked #10 because of its Google rating and availability: 5.0★ from 60 Google reviews, open 7 days a week.
- 5.0★ from 60 Google reviews
- Hours
- Mon–Sat 8 AM–8:30 PM · Sun 11 AM–5 PM
Based in East Brunswick, 22 mi away
79/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.9★ from 36 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 36 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat 9 AM–6 PM · Sun 9 AM–5 PM
- Address
- 12 Civic Center Dr Apt 8, East Brunswick, NJ 08816
#12 K.M.N Insulation
Based in Bridgewater, 10 mi away
79/100CR ScoreRanked #12 because of its Google rating and trade focus: 5.0★ from 29 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 29 Google reviews
- Hours
- Mon–Fri 7 AM–7 PM · Sat 7 AM–5 PM · Sun closed
#13 Proper Roofing
Based in Camden, 22 mi away
79/100CR ScoreRanked #13 because of its Google rating and availability: 5.0★ from 140 Google reviews, open 24/7.
- 5.0★ from 140 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Doylestown, 21 mi away
79/100CR ScoreRanked #14 because of its Google rating and availability: 4.9★ from 182 Google reviews, open 24/7.
- 4.9★ from 182 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 52 E Oakland Ave Suite 3A, Doylestown, PA 18901
Based in Bristol, 10 mi away
79/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.7★ from 44 Google reviews, listed on Google as “Insulation contractor”.
- 4.7★ from 44 Google reviews
- Hours
- Mon 7 AM–6:30 PM · Tue–Fri 7 AM–6 PM · Sat 8 AM–12 PM · Sun closed
- Address
- 1 Prospect St, Bristol, PA 19007
Based in Freehold, 22 mi away
78/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 17 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 17 Google reviews
- Hours
- Mon–Sun 8 AM–6 PM
Based in Crestwood Village, 10 mi away
78/100CR ScoreRanked #17 because of its Google rating and trade focus: 5.0★ from 15 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 15 Google reviews
- Hours
- Mon–Fri 8 AM–8 PM · Sat 9 AM–5 PM · Sun closed
Based in Mercerville, 1 mi away
78/100CR ScoreRanked #18 because of its Google rating and availability: 4.5★ from 169 Google reviews, open 7 days a week.
- 4.5★ from 169 Google reviews
- Hours
- Mon–Thu 7 AM–7 PM · Fri 7 AM–5 PM · Sat 8 AM–5 PM · Sun 12 PM–5 PM
- Address
- 1035 William St, Hamilton Township, NJ 08610
Based in Princeton, 7 mi away
78/100CR ScoreRanked #19 because of its Google rating and review volume: 5.0★ from 334 Google reviews, 334 Google reviews.
- 5.0★ from 334 Google reviews
- Hours
- Mon–Fri 7 AM–6 PM · Sat 9 AM–4:30 PM · Sun closed
- Address
- 3490 US-1 suite 107, Princeton, NJ 08540
#20 NP ENERGY INC
Based in Cinnaminson, 12 mi away
77/100CR ScoreRanked #20 because of its Google rating and trade focus: 5.0★ from 113 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 113 Google reviews
- Hours
- Mon–Fri 7:30 AM–6 PM · Sat–Sun closed
Based in Mount Holly, 14 mi away
77/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 148 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 148 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat–Sun closed
- Address
- 116 Burrs Rd Suite 116A, Westampton Township, NJ 08060
Based in Trenton
77/100CR ScoreRanked #22 because of its Google rating and review volume: 4.9★ from 97 Google reviews, 97 Google reviews.
- 4.9★ from 97 Google reviews
- Hours
- Mon–Sat 7 AM–7 PM · Sun closed
- Address
- 630 Pennsylvania Ave, Trenton, NJ 08638
Based in Ashland, 24 mi away
77/100CR ScoreRanked #23 because of its Google rating and review volume: 4.8★ from 1,092 Google reviews, 1,092 Google reviews.
- 4.8★ from 1,092 Google reviews
- Hours
- Mon–Sun 8 AM–9 PM
- Address
- 2050 Springdale Rd #500, Cherry Hill Township, NJ 08003
Based in Philadelphia, 23 mi away
76/100CR ScoreRanked #24 because of its Google rating and availability: 4.5★ from 11 Google reviews, open 24/7.
- 4.5★ from 11 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2200 Wakeling St, Philadelphia, PA 19137
Based in Atco, 25 mi away
76/100CR ScoreRanked #25 because of its Google rating and availability: 4.9★ from 51 Google reviews, open 24/7.
- 4.9★ from 51 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 747 Stokes Rd, Medford, NJ 08055
Insulation contractors ranked #26 to #50
#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 89 ranked insulation contractors here; the rest are on their profiles.
Also serving Trenton
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.
How much do insulation contractors cost in Trenton?
National price ranges in USD, not adjusted for Trenton. 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 |
How we ranked Trenton insulation contractors
We scored 89 Trenton 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 Trenton 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 |
Insulation contractors in Trenton: frequently asked questions
Who is the best insulation contractor in Trenton?
By CR Score, the highest-ranked insulation contractor in Trenton, NJ is Randy & Bills Wildlife Control LLC with a CR Score of 88/100. It has 5.0★ from 76 Google reviews. It is open 24/7. ThermoSpray (#2) and Princeton Air Conditioning (#3) follow. We ranked 89 insulation contractors on 8 factors, last updated October 22, 2026.
How many insulation contractors are there in Trenton?
ContractorsRanked ranks 89 insulation contractors serving Trenton, NJ. 5 of them are based in Trenton; the rest serve it from nearby towns. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.
Which insulation contractors in Trenton are open 24/7?
12 ranked insulation contractors in Trenton post 24/7 hours. The highest-ranked are Randy & Bills Wildlife Control LLC (#1), ThermoSpray (#2) and Princeton Air Conditioning (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which insulation contractors in Trenton work on weekends?
58 of 89 ranked insulation contractors post Saturday hours and 19 post Sunday hours. The highest-ranked open Saturdays are Randy & Bills Wildlife Control LLC (#1), ThermoSpray (#2) and Princeton Air Conditioning (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does attic insulation cost in Trenton?
Attic insulation typically costs $1,700 to $2,500, with $2,100 typical (Per attic: typical range of customer-reported jobs (about $1 to $3 per sq ft). US national range). This is a national range, not adjusted for Trenton. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Trenton insulation contractors have?
The median Google rating among 89 rated insulation contractors in Trenton is 4.9★, with a median of 12 reviews. EcoShield Pest Solutions has the most, 4,668 reviews, and ranks #4. We adjust ratings for review count, so a few five-star reviews cannot top the list.
How does ContractorsRanked rank insulation contractors?
Each insulation 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 insulation contractors outside Trenton count in this ranking?
Yes, if they are within 25 mi of the Trenton city center, our service radius for insulation 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 Trenton
- October 2026: CR Scores recalculated for 89 insulation contractors serving Trenton.
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Other trades in Trenton
- Roofers in Trenton1991 ranked
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- Handymen in Trenton148 ranked
- Kitchen remodelers in Trenton607 ranked
- Bathroom remodelers in Trenton610 ranked
- Flooring contractors in Trenton492 ranked
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- Concrete contractors in Trenton283 ranked
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- Window installers in Trenton649 ranked
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