87/100CR 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 Mercerville, NJ (2026)
88 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Mercerville: Randy & Bills Wildlife Control LLC, CR Score 87/100; 5.0★ from 76 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Princeton Air Conditioning, posts 24/7 hours; ranked #2 of 88.
- 4
Most-reviewed: EcoShield Pest Solutions, 4,668 Google reviews at 4.9★, the most of 88 ranked; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
88 Mercerville insulation contractors are ranked here by CR Score, from 8 published factors. 10 are open 24/7, 55 open Saturdays and 18 open Sundays, based on posted hours. The median Google rating is 4.9★ across 88 rated businesses.
Top 10 insulation contractors in Mercerville at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Randy & Bills Wildlife Control LLC | 87 | 5.0★ (76) | Lakewood, 12 mi away | 24/7 | Overall |
| 2 | Princeton Air Conditioning | 85 | 4.7★ (2,172) | Princeton, 5 mi away | 24/7 | Emergencies |
| 3 | ThermoSpray | 85 | 5.0★ (23) | Bayonne, 12 mi away | 24/7 | — |
| 4 | EcoShield Pest Solutions | 84 | 4.9★ (4,668) | Maple Shade, 21 mi away | Sat | Most reviews |
| 5 | Gunner Insulation LLC | 81 | 4.9★ (117) | Levittown, 9 mi away | Sat | — |
| 6 | Green Care Air Ducts and Chimney Services | 81 | 5.0★ (194) | East Brunswick, 18 mi away | 24/7 | — |
| 7 | Brunswick Insulation Pros | 80 | 4.9★ (36) | East Brunswick, 19 mi away | Sat · Sun | — |
| 8 | Mammoth Solutions | 80 | 5.0★ (22) | Horsham, 18 mi away | Sat · Sun | — |
| 9 | ROM Attic Insulation & Roofing Services Co, NJ | 80 | 4.9★ (8) | Trenton, 4 mi away | 24/7 | — |
| 10 | Koala Insulation of Mercer & Middlesex Counties | 79 | 5.0★ (96) | Trenton, 3 mi away | — | — |
The 88 best insulation contractors in Mercerville, 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.
Based in Princeton, 5 mi away
85/100CR ScoreRanked #2 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
#3 ThermoSpray
Based in Bayonne, 12 mi away
85/100CR ScoreRanked #3 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 Maple Shade, 21 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, 9 mi away
81/100CR 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 East Brunswick, 18 mi away
81/100CR ScoreRanked #6 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 East Brunswick, 19 mi away
80/100CR ScoreRanked #7 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
Based in Horsham, 18 mi away
80/100CR ScoreRanked #8 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 Trenton, 4 mi away
80/100CR ScoreRanked #9 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 Trenton, 3 mi away
79/100CR ScoreRanked #10 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 Robertsville, 22 mi away
79/100CR ScoreRanked #11 because of its Google rating and availability: 4.6★ from 1,213 Google reviews, open 24/7.
- 4.6★ from 1,213 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 300 Campus Dr suite J, Robertsville, NJ 07751
Based in Freehold, 19 mi away
79/100CR ScoreRanked #12 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
#13 K.M.N Insulation
Based in Bridgewater, 12 mi away
79/100CR ScoreRanked #13 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
Based in Princeton, 5 mi away
78/100CR ScoreRanked #14 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
Based in Doylestown, 24 mi away
78/100CR ScoreRanked #15 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 Mercerville
78/100CR ScoreRanked #16 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 Somerville, 23 mi away
78/100CR ScoreRanked #17 because of its Google rating and trade focus: 5.0★ from 20 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 20 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat 9 AM–6 PM · Sun 9 AM–5 PM
- Address
- 200 Parcview Pl Apartment 304, Somerville, NJ 08876
Based in Bristol, 13 mi away
78/100CR ScoreRanked #18 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 Crestwood Village, 12 mi away
77/100CR ScoreRanked #19 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
#20 NP ENERGY INC
Based in Cinnaminson, 14 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, 16 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 Highland Park, 23 mi away
76/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 6 Google reviews
- Hours
- Mon–Sun 8 AM–8 PM
- Address
- 70 Lawrence Ave, Highland Park, NJ 08904
Based in Trenton, 3 mi away
76/100CR ScoreRanked #23 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 Freehold, 22 mi away
75/100CR ScoreRanked #24 because of its Google rating and trade focus: 5.0★ from 179 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 179 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 179 South St, Freehold, NJ 07728
Based in Princeton, 4 mi away
75/100CR ScoreRanked #25 because of its Google rating and trade focus: 3.7★ from 3 Google reviews, listed on Google as “Insulation contractor”.
- 3.7★ from 3 Google reviews
- Hours
- Mon–Sat 7 AM–9:30 PM · Sun closed
- Address
- Ewing Township, NJ 08638
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 88 ranked insulation contractors here; the rest are on their profiles.
Also serving Mercerville
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 Mercerville?
National price ranges in USD, not adjusted for Mercerville. 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 Mercerville insulation contractors
We scored 88 Mercerville 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 Mercerville 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 Mercerville: frequently asked questions
Who is the best insulation contractor in Mercerville?
By CR Score, the highest-ranked insulation contractor in Mercerville, NJ is Randy & Bills Wildlife Control LLC with a CR Score of 87/100. It has 5.0★ from 76 Google reviews. It is open 24/7. Princeton Air Conditioning (#2) and ThermoSpray (#3) follow. We ranked 88 insulation contractors on 8 factors, last updated October 22, 2026.
How many insulation contractors are there in Mercerville?
ContractorsRanked ranks 88 insulation contractors serving Mercerville, NJ. 3 of them are based in Mercerville; 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 Mercerville are open 24/7?
10 ranked insulation contractors in Mercerville post 24/7 hours. The highest-ranked are Randy & Bills Wildlife Control LLC (#1), Princeton Air Conditioning (#2) and ThermoSpray (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which insulation contractors in Mercerville work on weekends?
55 of 88 ranked insulation contractors post Saturday hours and 18 post Sunday hours. The highest-ranked open Saturdays are Randy & Bills Wildlife Control LLC (#1), Princeton Air Conditioning (#2) and ThermoSpray (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does attic insulation cost in Mercerville?
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 Mercerville. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Mercerville insulation contractors have?
The median Google rating among 88 rated insulation contractors in Mercerville is 4.9★, with a median of 8 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 Mercerville count in this ranking?
Yes, if they are within 25 mi of the Mercerville 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 Mercerville
- October 2026: CR Scores recalculated for 88 insulation contractors serving Mercerville.
More insulation contractors and Mercerville pages
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