89/100CR Score
Ranked #1 because of its Google rating and availability: 4.9★ from 29 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.9★ from 29 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Best Insulation Contractors in Boulder City, NV (2026)
34 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Boulder City: Cool Guys llc. 24 hr. Heating and Cooling, CR Score 89/100; 4.9★ from 29 Google reviews; open 24/7.
- 4
Best for emergencies (open 24/7): BEST Air Conditioning Plumbing Repair, posts 24/7 hours; ranked #4 of 34.
- 4
Most-reviewed: BEST Air Conditioning Plumbing Repair, 3,165 Google reviews at 4.9★, the most of 34 ranked; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
34 Boulder City insulation contractors are ranked here by CR Score, from 8 published factors. 3 are open 24/7, 17 open Saturdays and 11 open Sundays, based on posted hours. The median Google rating is 4.9★ across 34 rated businesses.
Most of this list also appears on the Insulation contractors in Sunrise Manor ranking. See Insulation contractors in Sunrise Manor
Top 10 insulation contractors in Boulder City at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Cool Guys llc. 24 hr. Heating and Cooling | 89 | 4.9★ (29) | Boulder City | 24/7 | Overall |
| 2 | LV Attic Pros: Attic Insulation Specialist (Locally Owned, Family Operated) | 87 | 5.0★ (52) | Boulder City | Sat · Sun · Evenings | — |
| 3 | Super Service Cooling, Heating & Plumbing | 86 | 4.9★ (994) | Las Vegas, 21 mi away | Sat · Sun · Evenings | — |
| 4 | BEST Air Conditioning Plumbing Repair | 85 | 4.9★ (3,165) | Las Vegas, 17 mi away | 24/7 | Emergencies, Most reviews |
| 5 | Vegas Valley Insulation | 84 | 4.6★ (20) | Boulder City | Sat · Sun · Evenings | — |
| 6 | Attic Insulation Las Vegas | 83 | 5.0★ (30) | Las Vegas, 23 mi away | 24/7 | — |
| 7 | Allergy Air Duct Cleaning Specialists | 81 | 4.9★ (600) | Las Vegas, 24 mi away | Sat | — |
| 8 | Edgar's Services | 81 | 4.7★ (39) | Las Vegas, 16 mi away | Sat · Sun | — |
| 9 | Koala Insulation of Las Vegas | 80 | 4.9★ (133) | Las Vegas, 17 mi away | Sat | — |
| 10 | Henderson Insulation Pros | 80 | 5.0★ (10) | Boulder City | Sat | — |
The 34 best insulation contractors in Boulder City, ranked
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Based in Boulder City
87/100CR ScoreRanked #2 because of its Google rating and trade focus: 5.0★ from 52 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 52 Google reviews
- Hours
- Mon–Sun 7 AM–9 PM
Based in Las Vegas, 21 mi away
86/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.9★ from 994 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.9★ from 994 Google reviews
- Hours
- Mon–Fri 7 AM–9 PM · Sat–Sun 7 AM–7 PM
- Address
- 6625 S Valley View Blvd #304-306, Las Vegas, NV 89118
Based in Las Vegas, 17 mi away
85/100CR ScoreRanked #4 because of its Google rating and review volume: 4.9★ from 3,165 Google reviews, the most Google reviews on this list (3,165).
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.9★ from 3,165 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 6260 Stevenson Way, Las Vegas, NV 89120
Based in Boulder City
84/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.6★ from 20 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.6★ from 20 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
Based in Las Vegas, 23 mi away
83/100CR ScoreRanked #6 because of its Google rating and availability: 5.0★ from 30 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 30 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3111 S Valley View Blvd b113, Las Vegas, NV 89102
Based in Las Vegas, 24 mi away
81/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.9★ from 600 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.9★ from 600 Google reviews
- Hours
- Mon–Fri 6:30 AM–6 PM · Sat 7:30 AM–11 AM · Sun closed
- Address
- 3651 S Lindell Rd #D713, Las Vegas, NV 89103
Based in Las Vegas, 16 mi away
81/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.7★ from 39 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.7★ from 39 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun 9 AM–5 PM
- Address
- 6166 S Sandhill Rd Ste 136, Las Vegas, NV 89120
Based in Las Vegas, 17 mi away
80/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.9★ from 133 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.9★ from 133 Google reviews
- Hours
- Mon–Sat 8 AM–6 PM · Sun closed
- Address
- 9890 S Maryland Pkwy Suite 265, Las Vegas, NV 89183
Based in Boulder City
80/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 10 Google reviews
- Hours
- Mon–Fri 8 AM–5:30 PM · Sat 9 AM–3 PM · Sun closed
Based in Las Vegas, 18 mi away
78/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.9★ from 44 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.9★ from 44 Google reviews
- Hours
- Mon–Sat 7 AM–7 PM · Sun closed
- Address
- 6869 Tamarus St, Las Vegas, NV 89119
Based in North Las Vegas, 23 mi away
77/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.9★ from 78 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.9★ from 78 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat closed · Sun 8 AM–6 PM
Based in Las Vegas, 24 mi away
77/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.5★ from 13 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.5★ from 13 Google reviews
- Hours
- Mon–Sun 7 AM–5 PM
- Address
- 6630 Arroyo Springs St # 700, Las Vegas, NV 89113
Based in Las Vegas, 21 mi away
76/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.6★ from 10 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.6★ from 10 Google reviews
- Hours
- Mon–Sun 6 AM–11 PM
- Address
- 3555 W Oquendo Rd, Las Vegas, NV 89118
Based in Las Vegas, 21 mi away
76/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.9★ from 43 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.9★ from 43 Google reviews
- Hours
- Mon–Fri 9 AM–5 PM · Sat 10 AM–2 PM · Sun closed
- Address
- 3275 W Ali Baba Ln #501, Las Vegas, NV 89118
Based in Las Vegas, 20 mi away
75/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Insulation contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
- 5.0★ from 6 Google reviews
- Address
- 995 Sierra Vista Dr unit 331, Las Vegas, NV 89169
Based in Las Vegas, 19 mi away
74/100CR ScoreRanked #17 because of its Google rating and trade focus: 5.0★ from 11 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 11 Google reviews
- Hours
- Mon–Sat 9 AM–6 PM · Sun closed
- Address
- 1771 E Flamingo Rd Building B, Suite 211B, Las Vegas, NV 89119
Based in Las Vegas, 22 mi away
74/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.9★ from 9 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.9★ from 9 Google reviews
- Hours
- Mon–Sat 9 AM–5 PM · Sun closed
- Address
- 218 S 6th St Unit 3, Las Vegas, NV 89101
Based in Las Vegas, 22 mi away
73/100CR ScoreRanked #19 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Insulation contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
- 5.0★ from 4 Google reviews
- Address
- 5855 La Costa Canyon Ct #110, Las Vegas, NV 89139
Based in Las Vegas, 24 mi away
73/100CR ScoreRanked #20 because of its Google rating and trade focus: 3.7★ from 3 Google reviews, listed on Google as “Insulation contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
- 3.7★ from 3 Google reviews
- Address
- 6630 Arroyo Springs St # 700, Las Vegas, NV 89113
#21 I&S insulation
Based in Las Vegas, 20 mi away
73/100CR ScoreRanked #21 because of its Google rating and trade focus: 3.7★ from 3 Google reviews, listed on Google as “Insulation contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
- 3.7★ from 3 Google reviews
- Address
- 3823 Coral Reef Way, Las Vegas, NV 89110
Based in Las Vegas, 23 mi away
73/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.9★ from 70 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.9★ from 70 Google reviews
- Hours
- Mon–Fri 8 AM–4 PM · Sat–Sun closed
- Address
- 4584 Calimesa St, Las Vegas, NV 89115
Based in Las Vegas, 24 mi away
72/100CR ScoreRanked #23 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.
- 5.0★ from 4 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat closed · Sun 8 AM–6 PM
- Address
- 7255 W Sunset Rd APT 1128, Las Vegas, NV 89113
#24 Builders United
Based in Las Vegas, 22 mi away
72/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.8★ from 43 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.8★ from 43 Google reviews
- Hours
- Mon–Thu 7 AM–5 PM · Fri 7 AM–3 PM · Sat–Sun closed
- Address
- 6001 S Decatur Blvd Suite J, Las Vegas, NV 89118
Based in Las Vegas, 21 mi away
72/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.9★ from 25 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.9★ from 25 Google reviews
- Hours
- Mon–Fri 9 AM–6 PM · Sat–Sun closed
- Address
- 210 Spencer St, Las Vegas, NV 89101
How much do insulation contractors cost in Boulder City?
National price ranges in USD, not adjusted for Boulder City. 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 Boulder City insulation contractors
We scored 34 Boulder City 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 Boulder City 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 Boulder City: frequently asked questions
Who is the best insulation contractor in Boulder City?
By CR Score, the highest-ranked insulation contractor in Boulder City, NV is Cool Guys llc. 24 hr. Heating and Cooling with a CR Score of 89/100. It has 4.9★ from 29 Google reviews. It is open 24/7. LV Attic Pros: Attic Insulation Specialist (Locally Owned, Family Operated) (#2) and Super Service Cooling, Heating & Plumbing (#3) follow. We ranked 34 insulation contractors on 8 factors, last updated October 22, 2026.
How many insulation contractors are there in Boulder City?
ContractorsRanked ranks 34 insulation contractors serving Boulder City, NV. 4 of them are based in Boulder City; the rest serve it from nearby towns. Counts are as of October 2026.
Which insulation contractors in Boulder City are open 24/7?
3 ranked insulation contractors in Boulder City post 24/7 hours. The highest-ranked are Cool Guys llc. 24 hr. Heating and Cooling (#1), BEST Air Conditioning Plumbing Repair (#4) and Attic Insulation Las Vegas (#6). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which insulation contractors in Boulder City work on weekends?
17 of 34 ranked insulation contractors post Saturday hours and 11 post Sunday hours. The highest-ranked open Saturdays are Cool Guys llc. 24 hr. Heating and Cooling (#1), LV Attic Pros: Attic Insulation Specialist (Locally Owned, Family Operated) (#2) and Super Service Cooling, Heating & Plumbing (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does attic insulation cost in Boulder City?
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 Boulder City. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Boulder City insulation contractors have?
The median Google rating among 34 rated insulation contractors in Boulder City is 4.9★, with a median of 17 reviews. BEST Air Conditioning Plumbing Repair has the most, 3,165 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 Boulder City count in this ranking?
Yes, if they are within 25 mi of the Boulder City 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 Boulder City
- October 2026: CR Scores recalculated for 34 insulation contractors serving Boulder City.
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