8 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Eau Claire: Clearwater Spray Foam, CR Score 81/100; 5.0★ from 5 Google reviews.
Most-reviewed: Rock & Tait, 159 Google reviews at 4.7★, the most of 8 ranked; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
8 Eau Claire insulation contractors are ranked here by CR Score, from 8 published factors. The median Google rating is 4.6★ across 8 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Best for |
|---|---|---|---|---|---|
| 1 | Clearwater Spray Foam | 81 | 5.0★ (5) | Eau Claire | Overall |
| 2 | Hometown Insulation | 81 | 3.7★ (9) | Eau Claire | — |
| 3 | Extreme Spray Foam of Eau Claire | 77 | 5.0★ (21) | Eau Claire | — |
| 4 | Rock & Tait | 76 | 4.7★ (159) | Eau Claire | Most reviews |
| 5 | Eau Claire Insulation LLC | 76 | 4.1★ (22) | Eau Claire | — |
| 6 | C.S. Construction | 75 | 4.5★ (139) | Eau Claire | — |
| 7 | Alpine Insulation | 70 | 4.7★ (6) | Eau Claire | — |
| 8 | North Central Insulation | 69 | 4.2★ (5) | Altoona, 2 mi away | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Insulation contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Eau Claire
Ranked #2 because of its Google rating and trade focus: 3.7★ from 9 Google reviews, listed on Google as “Insulation contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Eau Claire
Ranked #3 because of its Google rating and trade focus: 5.0★ from 21 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Eau Claire
Ranked #4 because of its Google rating and review volume: 4.7★ from 159 Google reviews, the most Google reviews on this list (159).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Eau Claire
Ranked #5 because of its Google rating and trade focus: 4.1★ from 22 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Eau Claire
Ranked #6 because of its Google rating and review volume: 4.5★ from 139 Google reviews, 139 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Eau Claire
Ranked #7 because of its Google rating and trade focus: 4.7★ from 6 Google reviews, listed on Google as “Flooring contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Altoona, 2 mi away
Ranked #8 because of its Google rating and trade focus: 4.2★ from 5 Google reviews, listed on Google as “Roofing contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
National price ranges in USD, not adjusted for Eau Claire. 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 |
We scored 8 Eau Claire 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 Eau Claire 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 |