62/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.9★ from 146 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 146 Google reviews
- Hours
- Mon–Sun 8 AM–6 PM
- Address
- 54 Washington Ave, Dover, NJ 07801
Best Insulation Contractors in Sparta, NJ (2026)
34 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Sparta: DoctorEnergySmart, CR Score 62/100; 4.9★ from 146 Google reviews; open 7 days a week.
- 15
Best for emergencies (open 24/7): Spray Foam Elizabeth NJ, posts 24/7 hours; ranked #15 of 34.
- 7
Most-reviewed: Ace Handyman Services Bernards, 334 Google reviews at 5.0★, the most of 34 ranked; ranked #7.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
34 Sparta insulation contractors are ranked here by CR Score, from ten published factors. 2 are open 24/7, 24 open Saturdays and 7 open Sundays, based on posted hours. The median Google rating is 4.8★ across 34 rated businesses.
Top 10 insulation contractors in Sparta at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | DoctorEnergySmart | 62 | 4.9★ (146) | Dover, 12 mi away | Sat · Sun | Overall |
| 2 | Thermal Shield Insulation | 59 | 4.9★ (106) | East Hanover, 20 mi away | Sat · Sun · Evenings | — |
| 3 | Serene Property Services LLC | 58 | 4.9★ (48) | West Milford, 10 mi away | Sat | — |
| 4 | XPERT CHIMNEY SWEEP | 57 | 5.0★ (15) | Budd Lake, 10 mi away | Sat · Sun · Evenings | — |
| 5 | Divine Energy Solutions, Inc. | 57 | 4.8★ (91) | Dover, 11 mi away | — | — |
| 6 | Home Insulation Experts Mine Hill | 56 | 4.7★ (15) | Budd Lake, 12 mi away | Sat · Sun · Evenings | — |
| 7 | Ace Handyman Services Bernards | 55 | 5.0★ (334) | Bernardsville, 24 mi away | Sat · Sun | Most reviews |
| 8 | Turning Your Home Green | 53 | 4.9★ (15) | East Hanover, 21 mi away | Sat | — |
| 9 | Western Pest Services | 53 | 4.5★ (8) | Morris Plains, 15 mi away | Sat | — |
| 10 | New Jersey Siding & Windows, Inc. | 53 | 4.8★ (164) | Randolph, 15 mi away | Sat | — |
The 34 best insulation contractors in Sparta, ranked
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.
Based in East Hanover, 20 mi away
59/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.9★ from 106 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 106 Google reviews
- Hours
- Mon–Sun 6 AM–10 PM
- Address
- 45 US-46 Suite 604, Pine Brook, NJ 07058
Based in West Milford, 10 mi away
58/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.9★ from 48 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 48 Google reviews
- Hours
- Mon–Fri 8:30 AM–6 PM · Sat 9 AM–5 PM · Sun closed
Based in Budd Lake, 10 mi away
57/100CR ScoreRanked #4 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–Sun 8 AM–8 PM
- Address
- 11 Kings Pkwy, Ledgewood, NJ 07852
Based in Dover, 11 mi away
57/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.8★ from 91 Google reviews, listed on Google as “Insulation contractor”.
- 4.8★ from 91 Google reviews
- Hours
- Mon–Fri 8:30 AM–4:30 PM · Sat–Sun closed
- Address
- 200 Richards Ave, Dover, NJ 07801
Based in Budd Lake, 12 mi away
56/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.7★ from 15 Google reviews, listed on Google as “Insulation contractor”.
- 4.7★ from 15 Google reviews
- Hours
- Mon–Sun 7:30 AM–8 PM
Based in Bernardsville, 24 mi away
55/100CR ScoreRanked #7 because of its Google rating and review volume: 5.0★ from 334 Google reviews, the most in Sparta.
- 5.0★ from 334 Google reviews
- Hours
- Mon–Sun 8 AM–5 PM
- Address
- 233 Mt Airy Rd #100, Basking Ridge, NJ 07920
Based in East Hanover, 21 mi away
53/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.9★ from 15 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 15 Google reviews
- Hours
- Mon–Sat 7 AM–5 PM · Sun closed
- Address
- 2 Merry Ln, East Hanover, NJ 07936
Based in Morris Plains, 15 mi away
53/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.5★ from 8 Google reviews, listed on Google as “Insulation contractor”.
- 4.5★ from 8 Google reviews
- Hours
- Mon–Fri 7:30 AM–6 PM · Sat 8 AM–2 PM · Sun closed
Based in Randolph, 15 mi away
53/100CR ScoreRanked #10 because of its Google rating and review volume: 4.8★ from 164 Google reviews.
- 4.8★ from 164 Google reviews
- Hours
- Mon–Fri 9 AM–5 PM · Sat 9 AM–1 PM · Sun closed
- Address
- 1248 Sussex Turnpike A1, Randolph, NJ 07869
Based in Hopatcong, 12 mi away
52/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.8★ from 4 Google reviews, listed on Google as “Insulation contractor”.
- 4.8★ from 4 Google reviews
- Hours
- Mon–Sat 7 AM–9:30 PM · Sun closed
- Address
- 79 Cedar Lake E, Denville, NJ 07834
Based in Hopatcong, 9 mi away
51/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.9★ from 17 Google reviews, listed on Google as “Painting”.
- 4.9★ from 17 Google reviews
- Hours
- Mon–Fri 7 AM–9:30 PM · Sat–Sun closed
- Address
- 7 Colonial Rd, Rockaway Township, NJ 07866
Based in Bedminster, 24 mi away
51/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.8★ from 8 Google reviews, listed on Google as “Insulation contractor”.
- 4.8★ from 8 Google reviews
- Hours
- Mon–Sat 7 AM–9:30 PM · Sun closed
- Address
- 49 US-202, Far Hills, NJ 07931
#14 Dyer Insulations
Based in Rockaway, 11 mi away
51/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.8★ from 4 Google reviews, listed on Google as “Insulation contractor”.
- 4.8★ from 4 Google reviews
- Hours
- Mon–Fri 9 AM–5 PM · Sat–Sun closed
- Address
- 70 Cobb St, Rockaway, NJ 07866
Based in Clark, 25 mi away
50/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 7 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Boonton, 15 mi away
50/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 13 Google reviews, listed on Google as “Electrician”.
- 5.0★ from 13 Google reviews
- Hours
- Mon–Sat 7 AM–9:30 PM · Sun closed
- Address
- 272 Myrtle Ave, Boonton, NJ 07005
Based in East Hanover, 20 mi away
50/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.5★ from 12 Google reviews, listed on Google as “Insulation contractor”.
- 4.5★ from 12 Google reviews
- Hours
- Mon–Fri 7:30 AM–5 PM · Sat–Sun closed
- Address
- 1 Chapin Rd suite 5, Pine Brook, NJ 07058
Based in Budd Lake, 9 mi away
50/100CR ScoreRanked #18 because of its Google rating and availability: 5.0★ from 4 Google reviews, open 24/7.
- 5.0★ from 4 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 20 Ridge Rd, Stanhope, NJ 07874
Based in Dover, 11 mi away
50/100CR ScoreRanked #19 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Contractor”.
- 5.0★ from 6 Google reviews
- Hours
- Mon–Sat 7 AM–9:30 PM · Sun closed
- Address
- Dover, NJ 07801
Based in Dover, 13 mi away
50/100CR ScoreRanked #20 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “Contractor”.
- 5.0★ from 8 Google reviews
- Hours
- Mon–Sat 7 AM–9:30 PM · Sun closed
- Address
- 9 Kennedy Dr, Denville, NJ 07834
Based in Livingston, 22 mi away
50/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 8 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat–Sun closed
- Address
- 104 Dorsa Ave Unit A, Livingston, NJ 07039
Based in Newton, 6 mi away
50/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.8★ from 13 Google reviews, listed on Google as “Roofing contractor”.
- 4.8★ from 13 Google reviews
- Hours
- Mon–Fri 8:30 AM–5 PM · Sat 8:30 AM–1 PM · Sun closed
- Address
- 9 Ashford St, Newton, NJ 07860
Based in Verona, 24 mi away
49/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 3 Google reviews
- Hours
- Mon–Sat 7 AM–9:30 PM · Sun closed
- Address
- 84 Lynwood Rd, Verona, NJ 07044
Based in Livingston, 24 mi away
49/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.7★ from 3 Google reviews, listed on Google as “Insulation contractor”.
- 4.7★ from 3 Google reviews
- Hours
- Mon–Sat 7 AM–9:30 PM · Sun closed
- Address
- 49 Havenwood Dr, Livingston, NJ 07039
Based in Bloomingdale, 22 mi away
49/100CR ScoreRanked #25 because of its Google rating and review volume: 5.0★ from 20 Google reviews.
- 5.0★ from 20 Google reviews
- Hours
- Mon–Sun 8 AM–6 PM
All 34 insulation contractors
#1 to #25 are shown in full above. Here are #26 to #34, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Attic Insulation Pros | 48 | 5.0★ (6) | 24 mi |
| 27 | Acorn Home Improvements, Inc. | 48 | 4.6★ (73) | 19 mi |
| 28 | Eastern Contractor Services | 47 | 4.4★ (44) | 15 mi |
| 29 | DIA Attic Insulation & Roofing Services Inc, NJ | 47 | 4.6★ (9) | 25 mi |
| 30 | MSY - Attic Insulation & Roofing Services Co, NJ 07865 | 47 | 4.7★ (7) | 24 mi |
| 31 | MAV'S Attic Insulation & Roofing Services Chatham Township, NJ | 46 | 4.1★ (9) | 25 mi |
| 32 | TCB Attic-Solution & Roofing Service | 45 | 4.7★ (10) | 22 mi |
| 33 | Trim Brush Co | 44 | 4.8★ (4) | 20 mi |
| 34 | Garage Force of North East New Jersey | 41 | 5.0★ (3) | 23 mi |
Also serving Sparta
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 |
|---|---|---|
| AllJersey Spray Foam LLC | 5.0★ (1) | 8 mi |
| Armor Drywall | 5.0★ (15) | In Sparta |
| E&M Insulation-Drywall | In Sparta | |
| Eco Energy Options | 5.0★ (1) | In Sparta |
| Exclusive Attic Insulation & Roofing Services Inc, NJ | 5.0★ (1) | 16 mi |
| EZ Renovations LLC | In Sparta | |
| Home Energy Matters, Inc. | 3.0★ (2) | 19 mi |
| Homeland Remodeling Group | 5.0★ (42) | In Sparta |
| J Silver Design Build LLC | 1.0★ (1) | 21 mi |
| JB Insulation & Drywall | 5.0★ (2) | 20 mi |
| JLS Construction | 5.0★ (1) | 11 mi |
| North Attic-Solution & Insulation's & Roofing Service Riverdale, NJ | 4.5★ (2) | 18 mi |
| R. Poust Heating & Cooling Inc | 4.8★ (2,964) | In Sparta |
| Ribba Wood Working | 5.0★ (2) | 18 mi |
| Roger’s Attic Insulation Co | 1.0★ (1) | 21 mi |
| Spray Foam Genie New Jersey | 12 mi | |
| Steurer & Sons Constr LLC | 5.0★ (1) | 15 mi |
| The Home Insulators of Mahwah | 5.0★ (2) | 24 mi |
| The Home Insulators of Montvale | 5.0★ (1) | 20 mi |
| Weather Seal Insulation | 3.0★ (1) | 11 mi |
How much do insulation contractors cost in Sparta?
National price ranges in USD, not adjusted for Sparta. 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 Sparta insulation contractors
We scored 34 Sparta insulation 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 Sparta 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 |
Insulation contractors in Sparta: frequently asked questions
Who is the best insulation contractor in Sparta?
By CR Score, the highest-ranked insulation contractor in Sparta, NJ is DoctorEnergySmart with a CR Score of 62/100. It has 4.9★ from 146 Google reviews. It is open 7 days a week. Thermal Shield Insulation (#2) and Serene Property Services LLC (#3) follow. We ranked 34 insulation contractors on ten factors, last updated October 22, 2026.
How many insulation contractors are there in Sparta?
ContractorsRanked ranks 34 insulation contractors serving Sparta, NJ. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.
Which insulation contractors in Sparta are open 24/7?
2 ranked insulation contractors in Sparta post 24/7 hours. The highest-ranked are Spray Foam Elizabeth NJ (#15) and Green Life Lawn Services LLC (#18). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which insulation contractors in Sparta work on weekends?
24 of 34 ranked insulation contractors post Saturday hours and 7 post Sunday hours. The highest-ranked open Saturdays are DoctorEnergySmart (#1), Thermal Shield Insulation (#2) and Serene Property Services LLC (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does attic insulation cost in Sparta?
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 Sparta. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Sparta insulation contractors have?
The median Google rating among 34 rated insulation contractors in Sparta is 4.8★, with a median of 10 reviews. Ace Handyman Services Bernards has the most, 334 reviews, and ranks #7. 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 ten published factors, led by reputation (25%), credentials (15%), review volume (10%) and trade focus (10%). A business with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.
Do insulation contractors outside Sparta count in this ranking?
Yes, if they are within 25 mi of the Sparta 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 Sparta
- October 2026: CR Scores recalculated for 34 insulation contractors serving Sparta.
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