96 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Round Rock: Supreme Air Austin | Air Duct Cleaning | Dryer Vent Cleaning, CR Score 86/100; 5.0★ from 840 Google reviews; open 24/7.
Best for emergencies (open 24/7): Supreme Air Care | Air Duct Cleaning & Air Filters Austin, posts 24/7 hours; ranked #3 of 96.
Most-reviewed: Stan's Heating, Air, Plumbing & Electrical, 5,916 Google reviews at 4.7★, the most of 96 ranked; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
96 Round Rock insulation contractors are ranked here by CR Score, from 8 published factors. 21 are open 24/7, 58 open Saturdays and 38 open Sundays, based on posted hours. The median Google rating is 5.0★ across 96 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Supreme Air Austin | Air Duct Cleaning | Dryer Vent Cleaning | 86 | 5.0★ (840) | Austin, 8 mi away | 24/7 | Overall |
| 2 | Alta Pest Control | 85 | 4.8★ (4,644) | Austin, 5 mi away | Sat | — |
| 3 | Supreme Air Care | Air Duct Cleaning & Air Filters Austin | 85 | 5.0★ (36) | Austin, 7 mi away | 24/7 | Emergencies |
| 4 | Stan's Heating, Air, Plumbing & Electrical | 84 | 4.7★ (5,916) | Austin, 13 mi away | 24/7 | Most reviews |
| 5 | Air Central | 84 | 5.0★ (404) | Austin, 8 mi away | 24/7 | — |
| 6 | Indoor Weather Professionals | 84 | 4.4★ (78) | Austin, 9 mi away | 24/7 | — |
| 7 | All Time Insulation Services - West Lake Hills Tx | 83 | 4.7★ (15) | Austin, 9 mi away | 24/7 | — |
| 8 | Attica Air Duct Cleaning | 83 | 5.0★ (174) | Georgetown, 7 mi away | 24/7 | — |
| 9 | NAJ Spray Foam | 82 | 5.0★ (43) | Austin, 25 mi away | 24/7 | — |
| 10 | Stephan's Solutions | 82 | 5.0★ (41) | Austin, 12 mi away | Sat · Sun | — |
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.
Ranked #1 in Round Rock
Based in Austin, 8 mi away
Ranked #1 because of its Google rating and availability: 5.0★ from 840 Google reviews, open 24/7.
Based in Austin, 5 mi away
Ranked #2 because of its Google rating and trade focus: 4.8★ from 4,644 Google reviews, listed on Google as “Insulation contractor”.
Based in Austin, 7 mi away
Ranked #3 because of its Google rating and availability: 5.0★ from 36 Google reviews, open 24/7.
Based in Austin, 13 mi away
Ranked #4 because of its Google rating and availability: 4.7★ from 5,916 Google reviews, open 24/7.
Based in Austin, 8 mi away
Ranked #5 because of its Google rating and availability: 5.0★ from 404 Google reviews, open 24/7.
Based in Austin, 9 mi away
Ranked #6 because of its Google rating and availability: 4.4★ from 78 Google reviews, open 24/7.
Based in Austin, 9 mi away
Ranked #7 because of its Google rating and availability: 4.7★ from 15 Google reviews, open 24/7.
Based in Georgetown, 7 mi away
Ranked #8 because of its Google rating and availability: 5.0★ from 174 Google reviews, open 24/7.
Based in Austin, 25 mi away
Ranked #9 because of its Google rating and availability: 5.0★ from 43 Google reviews, open 24/7.
Based in Austin, 12 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 41 Google reviews, listed on Google as “Insulation contractor”.
Based in Georgetown, 11 mi away
Ranked #11 because of its Google rating and availability: 4.9★ from 241 Google reviews, open 24/7.
Based in Austin, 12 mi away
Ranked #12 because of its Google rating and availability: 4.4★ from 4,843 Google reviews, open 24/7.
Based in Austin, 13 mi away
Ranked #13 because of its Google rating and availability: 4.9★ from 308 Google reviews, open 24/7.
Based in Austin, 8 mi away
Ranked #14 because of its Google rating and availability: 4.3★ from 9 Google reviews, open 24/7.
Based in Austin, 7 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 84 Google reviews, listed on Google as “Insulation contractor”.
Based in Hutto, 8 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 190 Google reviews, listed on Google as “Insulation contractor”.
Based in Georgetown, 9 mi away
Ranked #17 because of its Google rating and availability: 5.0★ from 10 Google reviews, open 24/7.
Based in Cedar Park, 13 mi away
Ranked #18 because of its Google rating and availability: 5.0★ from 8 Google reviews, open 24/7.
Based in Austin, 15 mi away
Ranked #19 because of its Google rating and availability: 5.0★ from 157 Google reviews, open 24/7.
Based in Lakeway, 19 mi away
Ranked #20 because of its Google rating and availability: 5.0★ from 247 Google reviews, open 24/7.
Based in Austin, 16 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 118 Google reviews, listed on Google as “Insulation contractor”.
Based in Austin, 13 mi away
Ranked #22 because of its Google rating and trade focus: 4.6★ from 29 Google reviews, listed on Google as “Insulation contractor”.
Based in Austin, 12 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 78 Google reviews, listed on Google as “Insulation contractor”.
Based in Georgetown, 9 mi away
Ranked #24 because of its Google rating and availability: 5.0★ from 212 Google reviews, open 7 days a week.
Based in Austin, 24 mi away
Ranked #25 because of its Google rating and trade focus: 4.9★ from 607 Google reviews, listed on Google as “Insulation contractor”.
National price ranges in USD, not adjusted for Round Rock. 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 96 Round Rock 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 Round Rock 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 |