26 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Johnston: Service Legends Heating & Cooling, Plumbing & Electrical, CR Score 88/100; 4.9★ from 5,373 Google reviews; open 24/7.
Best for emergencies (open 24/7): Iowa Spray Foam Insulators, LLC, posts 24/7 hours; ranked #2 of 26.
Most-reviewed: Home Solutions of Iowa, 341 Google reviews at 4.7★, the most of 26 ranked after Service Legends Heating & Cooling, Plumbing & Electrical; ranked #24.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
26 Johnston insulation contractors are ranked here by CR Score, from 8 published factors. 3 are open 24/7, 9 open Saturdays and 5 open Sundays, based on posted hours. The median Google rating is 4.8★ across 26 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Service Legends Heating & Cooling, Plumbing & Electrical | 88 | 4.9★ (5,373) | Des Moines, 5 mi away | 24/7 | Overall |
| 2 | Iowa Spray Foam Insulators, LLC | 83 | 3.4★ (5) | Grimes, 4 mi away | 24/7 | Emergencies |
| 3 | Top Gun Contractors of Grimes | 82 | 5.0★ (13) | Clive, 7 mi away | Sat · Sun · Evenings | — |
| 4 | Rohan Drywall LLC | 81 | 4.7★ (29) | Des Moines, 8 mi away | Sat · Sun · Evenings | — |
| 5 | Infinity Insulation | 80 | 4.8★ (53) | Des Moines, 9 mi away | Sat · Evenings | — |
| 6 | Attic Solutions by Prevailing Resources LLC | 79 | 4.6★ (53) | Ankeny, 8 mi away | Sat · Evenings | — |
| 7 | L&L Home Solutions | 78 | 4.9★ (133) | Clive, 8 mi away | — | — |
| 8 | Iowa Eps Products | 77 | 3.5★ (35) | Des Moines, 6 mi away | — | — |
| 9 | Des Moines Spray Foam Insulation | 76 | 5.0★ (24) | Ankeny, 5 mi away | — | — |
| 10 | Precision Insulation and Coatings | 76 | 5.0★ (51) | Ankeny, 12 mi away | Sat | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Ranked #1 in Johnston
Based in Des Moines, 5 mi away
Ranked #1 because of its Google rating and review volume: 4.9★ from 5,373 Google reviews, the most Google reviews on this list (5,373).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Grimes, 4 mi away
Ranked #2 because of its Google rating and availability: 3.4★ from 5 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Clive, 7 mi away
Ranked #3 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 Des Moines, 8 mi away
Ranked #4 because of its Google rating and trade focus: 4.7★ from 29 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Des Moines, 9 mi away
Ranked #5 because of its Google rating and trade focus: 4.8★ from 53 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ankeny, 8 mi away
Ranked #6 because of its Google rating and trade focus: 4.6★ from 53 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Clive, 8 mi away
Ranked #7 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.
Based in Des Moines, 6 mi away
Ranked #8 because of its Google rating and trade focus: 3.5★ from 35 Google reviews, listed on Google as “Insulation contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Ankeny, 5 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 24 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ankeny, 12 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 51 Google reviews, listed on Google as “General contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ankeny, 12 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 19 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ankeny, 6 mi away
Ranked #12 because of its Google rating and trade focus: 4.3★ from 40 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ankeny, 12 mi away
Ranked #13 because of its Google rating and trade focus: 4.8★ from 28 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ames, 24 mi away
Ranked #14 because of its Google rating and availability: 5.0★ from 9 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Grimes, 4 mi away
Ranked #15 because of its Google rating and trade focus: 4.8★ from 5 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in West Des Moines, 6 mi away
Ranked #16 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 Clive, 5 mi away
Ranked #17 because of its Google rating and trade focus: 4.7★ from 11 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Des Moines, 9 mi away
Ranked #18 because of its Google rating and trade focus: 4.3★ from 7 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Pleasant Hill, 11 mi away
Ranked #19 because of its Google rating and trade focus: 4.2★ from 26 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ankeny, 5 mi away
Ranked #20 because of its Google rating and trade focus: 3.7★ from 3 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ankeny, 9 mi away
Ranked #21 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.
Based in Ankeny, 24 mi away
Ranked #22 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.
Based in Waukee, 12 mi away
Ranked #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.
Based in Waukee, 9 mi away
Ranked #24 because of its Google rating and review volume: 4.7★ from 341 Google reviews, 341 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ankeny, 5 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 44 Google reviews, listed on Google as “Handyman/Handywoman/Handyperson”.
Based on 6 of 8 factors; credentials and recency not yet collected.
National price ranges in USD, not adjusted for Johnston. 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 26 Johnston 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 Johnston 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 |