16 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Cedar Rapids: Thermal Shop, CR Score 85/100; 5.0★ from 92 Google reviews.
Most-reviewed: Kinzler Construction Services, 58 Google reviews at 4.5★, the most of 16 ranked after Thermal Shop; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
16 Cedar Rapids insulation contractors are ranked here by CR Score, from 8 published factors. 1 open Saturdays and 1 open Sundays, based on posted hours. The median Google rating is 4.4★ across 16 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Thermal Shop | 85 | 5.0★ (92) | Cedar Rapids | — | Overall |
| 2 | Classic Spray Foam Insulation | 84 | 4.8★ (16) | Cedar Rapids | Sat · Evenings | — |
| 3 | Kinzler Construction Services | 82 | 4.5★ (58) | Cedar Rapids | — | Most reviews |
| 4 | Bauer Spray Foam Insulation Inc. | 81 | 3.7★ (3) | Cedar Rapids | — | — |
| 5 | Eastern Iowa Spray Foam & Waterproofing LLC | 80 | 3.8★ (17) | Cedar Rapids | — | — |
| 6 | Extreme Spray Foam of Cedar Rapids | 79 | 5.0★ (13) | Cedar Rapids | — | — |
| 7 | Menefee Drywall Co, Inc. | 78 | 4.0★ (29) | Cedar Rapids | — | — |
| 8 | Weather Technicians of Iowa | 78 | 5.0★ (37) | North Liberty, 18 mi away | — | — |
| 9 | Jones Spray Foam | 77 | 5.0★ (5) | Cedar Rapids | Evenings | — |
| 10 | Contractor Services of Iowa | 75 | 3.0★ (12) | Cedar Rapids | — | — |
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 review volume: 5.0★ from 92 Google reviews, the most Google reviews on this list (92).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cedar Rapids
Ranked #2 because of its Google rating and trade focus: 4.8★ from 16 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cedar Rapids
Ranked #3 because of its Google rating and trade focus: 4.5★ from 58 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cedar Rapids
Ranked #4 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.
Based in Cedar Rapids
Ranked #5 because of its Google rating and trade focus: 3.8★ from 17 Google reviews, listed on Google as “Waterproofing service”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Cedar Rapids
Ranked #6 because of its Google rating and trade focus: 5.0★ from 13 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cedar Rapids
Ranked #7 because of its Google rating and trade focus: 4.0★ from 29 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in North Liberty, 18 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 37 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cedar Rapids
Ranked #9 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cedar Rapids
Ranked #10 because of its Google rating and trade focus: 3.0★ from 12 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Hiawatha, 4 mi away
Ranked #11 because of its Google rating and trade focus: 2.6★ from 5 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Asbury, 14 mi away
Ranked #12 because of its Google rating and trade focus: 3.9★ from 18 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cedar Rapids
Ranked #13 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cedar Rapids
Ranked #14 because of its Google rating and review volume: 4.2★ from 41 Google reviews, 41 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Coralville, 23 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cedar Rapids
Ranked #16 because of its Google rating and review volume: 4.3★ from 16 Google reviews, 16 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
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 |
|---|---|---|
| 1-800-HANSONS | 4.6★ (163) | In Cedar Rapids |
| 911 Restoration of Cedar Rapids | 4.9★ (84) | In Cedar Rapids |
| A-1 Insulation LLC | 5.0★ (2) | In Cedar Rapids |
| Adam Stradt - REALTOR® / Builder and Construction Specialist | 3.0★ (2) | In Cedar Rapids |
| Advanced Drywall Concepts, Iowa | 4.8★ (57) | In Cedar Rapids |
| Benjamin Franklin Plumbing of Eastern Iowa | 4.7★ (1,766) | In Cedar Rapids |
| Cutter Construction | 4.8★ (175) | In Cedar Rapids |
| D. C. Taylor Co. | 4.6★ (14) | In Cedar Rapids |
| Done Done Services | 4.4★ (28) | In Cedar Rapids |
| Duball Electric Inc. | 4.7★ (41) | In Cedar Rapids |
| FinishMaster LLC | 4.8★ (22) | In Cedar Rapids |
| Five Star Home Improvement | 4.7★ (232) | In Cedar Rapids |
| Jenatae Foam Insulation Co | 5.0★ (2) | In Cedar Rapids |
| Mad City Windows & Baths of Cedar Rapids | 4.9★ (1,348) | In Cedar Rapids |
| RENEW Residential Services LLC | 2.9★ (13) | In Cedar Rapids |
| Stronghouse | 4.9★ (95) | In Cedar Rapids |
| Sunrise Builders | 5.0★ (8) | In Cedar Rapids |
| Tomlinson-Cannon | 4.9★ (166) | In Cedar Rapids |
| United Windows & Siding | 4.9★ (75) | In Cedar Rapids |
| Wildside Spray Foam | 5.0★ (2) | In Cedar Rapids |
National price ranges in USD, not adjusted for Cedar Rapids. 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 16 Cedar Rapids 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 Cedar Rapids 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 |