79/100CR Score
Ranked #1 because of its Google rating and review volume: 5.0★ from 19 Google reviews, 19 Google reviews.
- 5.0★ from 19 Google reviews
- Hours
- Mon–Sat 8 AM–6 PM · Sun closed
Best Insulation Contractors in Seneca, SC (2026)
8 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Seneca: Discount Crawl Space, CR Score 79/100; 5.0★ from 19 Google reviews; open Saturdays until 6 PM.
- 8
Most-reviewed: American Eagle Home Improvement and Insulation, 27 Google reviews at 3.5★, the most of 8 ranked; ranked #8.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
8 Seneca insulation contractors are ranked here by CR Score, from 8 published factors. 4 open Saturdays, based on posted hours. The median Google rating is 4.7★ across 8 rated businesses.
Top 8 insulation contractors in Seneca at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Discount Crawl Space | 79 | 5.0★ (19) | Seneca | Sat | Overall |
| 2 | C & M Insulation LLC | 79 | 4.4★ (16) | Anderson, 19 mi away | Sat | — |
| 3 | South Carolina Spray Foam Insulation | 78 | 5.0★ (10) | Anderson, 20 mi away | Sat | — |
| 4 | Extreme Spray Foam Seneca | 77 | 4.3★ (6) | Seneca | — | — |
| 5 | Glenco Foam & Insulation | 76 | 5.0★ (14) | Easley, 15 mi away | — | — |
| 6 | Applegate Insulation | 75 | 4.1★ (23) | Toccoa, 22 mi away | — | — |
| 7 | Extreme Spray Foam of Anderson | 73 | 5.0★ (9) | Anderson, 21 mi away | — | — |
| 8 | American Eagle Home Improvement and Insulation | 73 | 3.5★ (27) | Anderson, 16 mi away | Sat | Most reviews |
The 8 best insulation contractors in Seneca, 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 Anderson, 19 mi away
79/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.4★ from 16 Google reviews, listed on Google as “Insulation contractor”.
- 4.4★ from 16 Google reviews
- Hours
- Mon–Sat 7 AM–6 PM · Sun closed
- Address
- 102 Banfield Ct, Anderson, SC 29621
Based in Anderson, 20 mi away
78/100CR ScoreRanked #3 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 10 Google reviews
- Hours
- Mon–Sat 7 AM–6 PM · Sun closed
- Address
- 1822 W Whitner St, Anderson, SC 29624
Based in Seneca
77/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.3★ from 6 Google reviews, listed on Google as “Insulation contractor”.
- 4.3★ from 6 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat–Sun closed
- Address
- 717 W North 1st St, Seneca, SC 29678
Based in Easley, 15 mi away
76/100CR ScoreRanked #5 because of its Google rating and trade focus: 5.0★ from 14 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 14 Google reviews
- Hours
- Mon–Fri 8:30 AM–4:30 PM · Sat–Sun closed
Based in Toccoa, 22 mi away
75/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.1★ from 23 Google reviews, listed on Google as “Insulation contractor”.
- 4.1★ from 23 Google reviews
- Hours
- Mon–Fri 7 AM–5 PM · Sat–Sun closed
- Address
- 1241 Meadowbrook Dr, Eastanollee, GA 30538
Based in Anderson, 21 mi away
73/100CR ScoreRanked #7 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 9 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat–Sun closed
Based in Anderson, 16 mi away
73/100CR ScoreRanked #8 because of its Google rating and review volume: 3.5★ from 27 Google reviews, the most Google reviews on this list (27).
- 3.5★ from 27 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat 8 AM–12 PM · Sun closed
- Address
- 113 Saddle Trail, Anderson, SC 29621
How much do insulation contractors cost in Seneca?
National price ranges in USD, not adjusted for Seneca. 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 Seneca insulation contractors
We scored 8 Seneca 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 Seneca 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 Seneca: frequently asked questions
Who is the best insulation contractor in Seneca?
By CR Score, the highest-ranked insulation contractor in Seneca, SC is Discount Crawl Space with a CR Score of 79/100. It has 5.0★ from 19 Google reviews. It is open Saturdays until 6 PM. C & M Insulation LLC (#2) and South Carolina Spray Foam Insulation (#3) follow. We ranked 8 insulation contractors on 8 factors, last updated October 22, 2026.
How many insulation contractors are there in Seneca?
ContractorsRanked ranks 8 insulation contractors serving Seneca, SC. 2 of them are based in Seneca; the rest serve it from nearby towns. Counts are as of October 2026.
Which insulation contractors in Seneca work on weekends?
4 of 8 ranked insulation contractors post Saturday hours. The highest-ranked open Saturdays are Discount Crawl Space (#1), C & M Insulation LLC (#2) and South Carolina Spray Foam Insulation (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does attic insulation cost in Seneca?
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 Seneca. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Seneca insulation contractors have?
The median Google rating among 8 rated insulation contractors in Seneca is 4.7★, with a median of 15 reviews. American Eagle Home Improvement and Insulation has the most, 27 reviews, and ranks #8. 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 Seneca count in this ranking?
Yes, if they are within 25 mi of the Seneca 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 Seneca
- October 2026: CR Scores recalculated for 8 insulation contractors serving Seneca.
- October 2026: 2 duplicate listings merged.
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