24 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Harlingen: Marvel Spray Foam and Energy Efficiency, CR Score 83/100; 4.9★ from 47 Google reviews; open Saturdays until 4 PM.
Best for emergencies (open 24/7): Synergy Foam, posts 24/7 hours; ranked #5 of 24.
Most-reviewed: George Cunningham Co, Inc., 768 Google reviews at 4.8★, the most of 24 ranked; ranked #8.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
24 Harlingen insulation contractors are ranked here by CR Score, from 8 published factors. 4 are open 24/7, 16 open Saturdays and 10 open Sundays, based on posted hours. The median Google rating is 4.9★ across 24 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Marvel Spray Foam and Energy Efficiency | 83 | 4.9★ (47) | Brownsville, 4 mi away | Sat · Evenings | Overall |
| 2 | Galan Brothers Insulation | 83 | 4.9★ (73) | La Feria, 7 mi away | Sat | — |
| 3 | RGV Foam Specialist | 82 | 5.0★ (9) | Brownsville, 6 mi away | Sat · Sun · Evenings | — |
| 4 | P.A. Foam Insulators | 82 | 4.6★ (9) | Brownsville, 6 mi away | Sat · Sun | — |
| 5 | Synergy Foam | 81 | 5.0★ (6) | Los Fresnos, 14 mi away | 24/7 | Emergencies |
| 6 | Ibar Insulation | 81 | 5.0★ (7) | La Feria, 8 mi away | Sat · Sun | — |
| 7 | Aztec Fine Homes, Inc | 81 | 3.0★ (8) | La Feria, 8 mi away | 24/7 | — |
| 8 | George Cunningham Co, Inc. | 78 | 4.8★ (768) | Harlingen | — | Most reviews |
| 9 | Macs Insulation | 78 | 5.0★ (3) | Harlingen | — | — |
| 10 | Texas Lone Star AC & Heating LLC | 78 | 4.7★ (88) | Brownsville, 23 mi away | 24/7 | — |
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: 4.9★ from 47 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in La Feria, 7 mi away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 73 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Brownsville, 6 mi away
Ranked #3 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 Brownsville, 6 mi away
Ranked #4 because of its Google rating and trade focus: 4.6★ from 9 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Los Fresnos, 14 mi away
Ranked #5 because of its Google rating and availability: 5.0★ from 6 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in La Feria, 8 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in La Feria, 8 mi away
Ranked #7 because of its Google rating and availability: 3.0★ from 8 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Harlingen
Ranked #8 because of its Google rating and review volume: 4.8★ from 768 Google reviews, the most Google reviews on this list (768).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Harlingen
Ranked #9 because of its Google rating and trade focus: 5.0★ 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 Brownsville, 23 mi away
Ranked #10 because of its Google rating and availability: 4.7★ from 88 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Brownsville, 22 mi away
Ranked #11 because of its Google rating and review volume: 4.9★ from 371 Google reviews, 371 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Brownsville, 15 mi away
Ranked #12 because of its Google rating and trade focus: 4.8★ from 144 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Brownsville, 19 mi away
Ranked #13 because of its Google rating and availability: 5.0★ from 16 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Brownsville, 21 mi away
Ranked #14 because of its Google rating and review volume: 4.7★ from 197 Google reviews, 197 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Brownsville, 22 mi away
Ranked #15 because of its Google rating and trade focus: 3.9★ from 21 Google reviews, listed on Google as “Insulation contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Brownsville, 14 mi away
Ranked #16 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 Brownsville, 7 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Weslaco, 18 mi away
Ranked #18 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 Donna, 21 mi away
Ranked #19 because of its Google rating and availability: 4.2★ from 5 Google reviews, open 7 days a week.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Progreso, 18 mi away
Ranked #20 because of its Google rating and trade focus: 4.0★ from 21 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Brownsville, 12 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Mercedes, 11 mi away
Ranked #22 because of its Google rating and trade focus: 4.7★ from 13 Google reviews, listed on Google as “Paving contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Brownsville, 21 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Brownsville, 21 mi away
Ranked #24 because of its Google rating and review volume: 4.7★ from 107 Google reviews, 107 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
8 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 |
|---|---|---|
| Attic Pro Insulation | 9 mi | |
| COYOTE INSULATION SOLUTIONS | 5.0★ (2) | 12 mi |
| Foam Insulation Xperts LLC | 5.0★ (2) | 7 mi |
| Foam R Us | 18 mi | |
| Pond Cover | In Harlingen | |
| Select Foam Insulation, LLC | 18 mi | |
| Super R Insulation | 5.0★ (1) | 23 mi |
| The Good Shepherd Spray Foam Insulation | 25 mi |
National price ranges in USD, not adjusted for Harlingen. 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 24 Harlingen 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 Harlingen 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 |