64/100CR Score
Ranked #1 because of its Google rating and review volume: 4.9★ from 46 Google reviews, the most in Rapid Valley.
- 4.9★ from 46 Google reviews
- Hours
- Mon–Sat 7 AM–7 PM · Sun closed
- Address
- 636 Willsie Ave Suite#1, Rapid City, SD 57701
Best Insulation Contractors in Rapid Valley, SD (2026)
8 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Rapid Valley: Rapid City Precision Insulation, CR Score 64/100; 4.9★ from 46 Google reviews; open Saturdays until 7 PM.
- 3
Most-reviewed: Big Rock Insulation, 8 Google reviews at 4.3★, the most of 8 ranked after Rapid City Precision Insulation; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
8 Rapid Valley insulation contractors are ranked here by CR Score, from ten published factors. 3 open Saturdays and 1 open Sundays, based on posted hours. The median Google rating is 4.8★ across 8 rated businesses.
Most of this list also appears on the Insulation contractors in Rapid City ranking. See Insulation contractors in Rapid City
Top 8 insulation contractors in Rapid Valley at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Rapid City Precision Insulation | 64 | 4.9★ (46) | Rapid City, 4 mi away | Sat · Evenings | Overall |
| 2 | Southern Comfort Spray Foam | 60 | 5.0★ (6) | Rapid City, 1 mi away | Sat · Sun | — |
| 3 | Big Rock Insulation | 56 | 4.3★ (8) | Rapid City, 2 mi away | — | Most reviews |
| 4 | Elite Spray Foam Solutions LLC | 56 | 4.4★ (8) | Rapid City, 4 mi away | — | — |
| 5 | Insulation Enterprises Inc | 55 | 4.7★ (7) | Rapid City, 7 mi away | — | — |
| 6 | L & L Insulation Inc | 55 | 4.8★ (5) | Rapid City, 5 mi away | — | — |
| 7 | Murphy Company | 54 | 5.0★ (3) | Rapid City, 2 mi away | — | — |
| 8 | Advanced Poly Coatings & Liners | 53 | 5.0★ (6) | Rapid City, 19 mi away | Sat | — |
The 8 best insulation contractors in Rapid Valley, 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 Rapid City, 1 mi away
60/100CR ScoreRanked #2 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–Fri 7 AM–5 PM · Sat–Sun 9 AM–5 PM
- Address
- 4839 Twilight Dr, Rapid City, SD 57703
Based in Rapid City, 2 mi away
56/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.3★ from 8 Google reviews, listed on Google as “Insulation contractor”.
- 4.3★ from 8 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 1051 Kennel Dr, Rapid City, SD 57703
Based in Rapid City, 4 mi away
56/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.4★ from 8 Google reviews, listed on Google as “Insulation contractor”.
- 4.4★ from 8 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 343 Enchantment Rd, Rapid City, SD 57701
Based in Rapid City, 7 mi away
55/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.7★ from 7 Google reviews, listed on Google as “Insulation contractor”.
- 4.7★ from 7 Google reviews
- Hours
- Mon–Fri 7 AM–4 PM · Sat–Sun closed
- Address
- 2951 N Plaza Dr SUITE #100, Rapid City, SD 57702
Based in Rapid City, 5 mi away
55/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.8★ from 5 Google reviews, listed on Google as “Insulation contractor”.
- 4.8★ from 5 Google reviews
- Hours
- Mon–Thu 7 AM–5 PM · Fri 7 AM–4 PM · Sat–Sun closed
- Address
- 3190 Haines Ave, Rapid City, SD 57701
Based in Rapid City, 2 mi away
54/100CR ScoreRanked #7 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–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 2136 Marlin Dr Suite 5 & 6, Rapid City, SD 57701
Based in Rapid City, 19 mi away
53/100CR ScoreRanked #8 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–Fri 8 AM–6 PM · Sat 8 AM–12 PM · Sun closed
How much do insulation contractors cost in Rapid Valley?
National price ranges in USD, not adjusted for Rapid Valley. 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 Rapid Valley insulation contractors
We scored 8 Rapid Valley 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 Rapid Valley 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 Rapid Valley: frequently asked questions
Who is the best insulation contractor in Rapid Valley?
By CR Score, the highest-ranked insulation contractor in Rapid Valley, SD is Rapid City Precision Insulation with a CR Score of 64/100. It has 4.9★ from 46 Google reviews. It is open Saturdays until 7 PM. Southern Comfort Spray Foam (#2) and Big Rock Insulation (#3) follow. We ranked 8 insulation contractors on ten factors, last updated October 22, 2026.
How many insulation contractors are there in Rapid Valley?
ContractorsRanked ranks 8 insulation contractors serving Rapid Valley, SD. Counts are as of October 2026.
Which insulation contractors in Rapid Valley work on weekends?
3 of 8 ranked insulation contractors post Saturday hours and 1 post Sunday hours. The highest-ranked open Saturdays are Rapid City Precision Insulation (#1), Southern Comfort Spray Foam (#2) and Advanced Poly Coatings & Liners (#8). Posted hours are office hours; crews may book weekend jobs separately.
How much does attic insulation cost in Rapid Valley?
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 Rapid Valley. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Rapid Valley insulation contractors have?
The median Google rating among 8 rated insulation contractors in Rapid Valley is 4.8★, with a median of 7 reviews. Rapid City Precision Insulation has the most, 46 reviews, and ranks #1. 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 Rapid Valley count in this ranking?
Yes, if they are within 25 mi of the Rapid Valley 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.
Can insulation contractors pay to rank higher on ContractorsRanked?
No. The CR Score never reads payment status, and this ranking has 0 paid placements. Up to 3 Featured businesses may appear above the list, labelled Featured and showing their honest rank.
Update log for Rapid Valley
- October 2026: CR Scores recalculated for 8 insulation contractors serving Rapid Valley.
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