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Best Insulation Contractors in San Antonio, TX (2026)

93 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in San Antonio: Beluga Air, CR Score 93/100; 4.9★ from 1,344 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): TX Builder, Attic Insulation & Air Duct Cleaning Specialist, posts 24/7 hours; ranked #2 of 93.

  3. 4

    Most-reviewed: Jon Wayne Service Company, 16,461 Google reviews at 4.8★, the most of 93 ranked; ranked #4.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

93 San Antonio insulation contractors are ranked here by CR Score, from 8 published factors. 18 are open 24/7, 53 open Saturdays and 35 open Sundays, based on posted hours. The median Google rating is 4.9★ across 93 rated businesses.

Top 10 insulation contractors in San Antonio at a glance

Top 10 insulation contractors in San Antonio at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Beluga Air934.9★ (1,344)San Antonio24/7Overall
2TX Builder, Attic Insulation & Air Duct Cleaning Specialist905.0★ (123)San Antonio24/7Emergencies
3Critter One of San Antonio, LLC904.6★ (737)San Antonio24/7—
4Jon Wayne Service Company894.8★ (16,461)San Antonio24/7Most reviews
5Attic World875.0★ (20)San Antonio24/7—
6Honeycomb Heating and Cooling865.0★ (467)San Antonio24/7—
7Green Pros Insulation - San Antonio Tx855.0★ (7)San Antonio24/7—
8Geo-Insulation, LLC855.0★ (326)San AntonioSat · Evenings—
9ASC Heating & Air Conditioning854.9★ (515)San Antonio24/7—
10911 Attic & Home Insulation Service855.0★ (5)San Antonio24/7—

The 93 best insulation contractors in San Antonio, ranked

Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.

  1. Ranked #1 in San Antonio

    #1 Beluga Air

    Based in San Antonio

    93/100CR Score

    Ranked #1 because of its Google rating and availability: 4.9★ from 1,344 Google reviews, open 24/7.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 4.9★ from 1,344 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    240 Sherwood Dr, San Antonio, TX 78201
    View profile for Beluga Air(210) 468-5977

  4. #4 Jon Wayne Service Company

    Based in San Antonio

    89/100CR Score

    Ranked #4 because of its Google rating and review volume: 4.8★ from 16,461 Google reviews, the most Google reviews on this list (16,461).

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 4.8★ from 16,461 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    9272 US Hwy 87 E, San Antonio, TX 78263
    View profile for Jon Wayne Service Company(830) 217-3095

  5. #5 Attic World

    Based in San Antonio

    87/100CR Score

    Ranked #5 because of its Google rating and availability: 5.0★ from 20 Google reviews, open 24/7.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 5.0★ from 20 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    7755 Pipers Hill, San Antonio, TX 78251
    View profile for Attic World(361) 902-8842

  8. #8 Geo-Insulation, LLC

    Based in San Antonio

    85/100CR Score

    Ranked #8 because of its Google rating and trade focus: 5.0★ from 326 Google reviews, listed on Google as “Insulation contractor”.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 5.0★ from 326 Google reviews
    Hours
    Mon–Sat 9 AM–7 PM · Sun closed
    Address
    2766 Harney Path, San Antonio, TX 78234
    View profile for Geo-Insulation, LLC(210) 848-5658

  11. #11 Attic Insulation Pro

    Based in San Antonio

    85/100CR Score

    Ranked #11 because of its Google rating and availability: 5.0★ from 5 Google reviews, open 24/7.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 5.0★ from 5 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    11103 San Pedro Ave #223, San Antonio, TX 78216
    View profile for Attic Insulation Pro(210) 750-4435

  13. #13 Fresh & Clean

    Based in San Antonio

    84/100CR Score

    Ranked #13 because of its Google rating and availability: 4.5★ from 4 Google reviews, open 24/7.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 4.5★ from 4 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    3618 Cotoneaster, San Antonio, TX 78261
    View profile for Fresh & Clean(210) 624-8922

  15. #15 America Air Duct Cleaning Services

    Based in San Antonio

    84/100CR Score

    Ranked #15 because of its Google rating and trade focus: 4.9★ from 278 Google reviews, listed on Google as “Insulation contractor”.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 4.9★ from 278 Google reviews
    Hours
    Mon–Thu 8 AM–7 PM · Fri 8 AM–6 PM · Sat closed · Sun 8 AM–5 PM
    Address
    6326 Sovereign Dr #140, San Antonio, TX 78229
    View profile for America Air Duct Cleaning Services(210) 777-0616

  17. #17 Santex Spray Foam LLC.

    Based in San Antonio

    83/100CR Score

    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.

    • 5.0★ from 10 Google reviews
    Hours
    Mon–Fri 7 AM–7 PM · Sat 7:30 AM–2:30 PM · Sun 9 AM–2:30 PM
    Address
    22831 TX-16, Von Ormy, TX 78073
    View profile for Santex Spray Foam LLC.(210) 237-9832

  18. #18 Insulation Pros SATX

    Based in San Antonio

    82/100CR Score

    Ranked #18 because of its Google rating and trade focus: 5.0★ from 56 Google reviews, listed on Google as “Insulation contractor”.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 5.0★ from 56 Google reviews
    Hours
    Mon–Sat 7 AM–7 PM · Sun closed
    Address
    7303 Shady Hollow Ln, San Antonio, TX 78255
    View profile for Insulation Pros SATX(210) 960-8302

  19. #19 Air Xpress

    Based in San Antonio

    82/100CR Score

    Ranked #19 because of its Google rating and trade focus: 5.0★ from 60 Google reviews, listed on Google as “Insulation contractor”.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 5.0★ from 60 Google reviews
    Hours
    Mon–Fri 8 AM–6 PM · Sat 9 AM–5 PM · Sun closed
    Address
    10626 Gulfdale St Suite #4, San Antonio, TX 78216
    View profile for Air Xpress(210) 986-4040

  20. #20 Professional Air Duct Cleaning

    Based in San Antonio

    81/100CR Score

    Ranked #20 because of its Google rating and trade focus: 4.8★ from 60 Google reviews, listed on Google as “Insulation contractor”.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 4.8★ from 60 Google reviews
    Hours
    Mon–Thu 7 AM–8 PM · Fri 7 AM–5 PM · Sat closed · Sun 7 AM–8 PM
    Address
    6215 Via La Cantera, San Antonio, TX 78256
    View profile for Professional Air Duct Cleaning(210) 934-8835

  22. #22 Attic Pro

    Based in San Antonio

    81/100CR Score

    Ranked #22 because of its Google rating and trade focus: 4.8★ from 57 Google reviews, listed on Google as “Insulation contractor”.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 4.8★ from 57 Google reviews
    Hours
    Mon–Fri 9 AM–8 PM · Sat closed · Sun 9 AM–8 PM
    Address
    1646 Vista Del Monte, San Antonio, TX 78216
    View profile for Attic Pro(210) 750-6966

  23. #23 Murphy's Insulation

    Based in San Antonio

    81/100CR Score

    Ranked #23 because of its Google rating and trade focus: 4.9★ from 15 Google reviews, listed on Google as “Insulation contractor”.

    Based on 5 of 8 factors; credentials, recency and availability not yet collected.

    • 4.9★ from 15 Google reviews
    Address
    459 Anton Dr, San Antonio, TX 78223
    View profile for Murphy's Insulation(210) 337-8032

  25. #25 Air Authority LLC

    Based in San Antonio

    81/100CR Score

    Ranked #25 because of its Google rating and availability: 4.8★ from 613 Google reviews, open 7 days a week.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 4.8★ from 613 Google reviews
    Hours
    Mon–Fri 8 AM–8 PM · Sat–Sun 8 AM–5 PM
    Address
    2554 Boardwalk St, San Antonio, TX 78217
    View profile for Air Authority LLC(210) 791-0778

Insulation contractors ranked #26 to #50

#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 93 ranked insulation contractors here; the rest are on their profiles.

insulation contractors in San Antonio, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Frontier Insulation Services814.9★ (45)2 mi
27Sweeppy LLC815.0★ (27)In San Antonio
28One Call Attic & Home Insulation815.0★ (3)9 mi
29iFOAM Insulation814.8★ (47)In San Antonio
30ThermoLine Insulation805.0★ (6)In San Antonio
31Somri Home Services805.0★ (126)In San Antonio
32Hill Country Spray Foam Insulation805.0★ (23)15 mi
33Insulation Works804.8★ (52)17 mi
34Affordable Air LLC805.0★ (87)In San Antonio
35SATX Spray Foam Insulation804.8★ (48)5 mi
36Patteson Spray foam Insulation795.0★ (11)In San Antonio
37Polar Spray Foam Insulation794.9★ (39)2 mi
38Green Energy of San Antonio794.5★ (95)In San Antonio
39Synergy Insulation793.0★ (3)5 mi
40Expo Home Improvement794.9★ (781)In San Antonio
41Home comfort insulation785.0★ (12)In San Antonio
42IM SPRAY FOAM ENTERPRISE INC785.0★ (6)In San Antonio
43Panda Insulation LLC785.0★ (6)16 mi
44TX BUILDER & Attic Insulation774.0★ (8)In San Antonio
45Koala Insulation of North San Antonio774.9★ (89)3 mi
46Central Texas RetroFoam774.8★ (97)In San Antonio
47Atrium Roofing774.9★ (265)In San Antonio
48Speed Dry USA - Air Duct Cleaning774.9★ (18)11 mi
49GGA CONSTRUCTION & DESIGN774.8★ (42)In San Antonio
50Texas Pro Insulators764.8★ (47)In San Antonio

Also serving San Antonio

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.

Unranked insulation contractors serving San Antonio
BusinessGoogle ratingDistance
Champion Replacement Windows of San Antonio4.8★ (892)In San Antonio
Chavez Brothers Roof Repair4.8★ (79)In San Antonio
Comfortable Air Air Duct Services3.7★ (166)In San Antonio
Cool Controls Htg. & A/C5.0★ (64)In San Antonio
Discount Roofing Company4.6★ (44)In San Antonio
E A H Industrial Spray Equipment Repair - Shark Grip Bathtub Refinishing Coatings - Chemcraft Wood Finishes4.4★ (95)In San Antonio
Evenflow Home & Commercial Services4.9★ (996)In San Antonio
Hayes & Sons Roofing LLC4.8★ (86)In San Antonio
Hughes Supply Plumbing - San Antoino / Rittiman4.9★ (69)In San Antonio
Maverick Windows San Antonio4.8★ (111)In San Antonio
Pepcal Heating & Air LLC5.0★ (512)In San Antonio
Right On Time Garage Doors5.0★ (44)In San Antonio
Robinson & Sons Roofing & Remodeling4.9★ (91)In San Antonio
Roesler's Roofing and Remodeling4.7★ (93)In San Antonio
San Antonio Masonry and Steel4.5★ (167)In San Antonio
SERVPRO of Alamo Heights and Downtown San Antonio4.9★ (93)In San Antonio
SERVPRO of Northwest San Antonio4.9★ (618)In San Antonio
Vargas Brothers Roofers LLC4.8★ (93)In San Antonio
Vidal Construction4.8★ (218)In San Antonio
Yeti Cooling & Heating4.9★ (472)In San Antonio

How much do insulation contractors cost in San Antonio?

National price ranges in USD, not adjusted for San Antonio. Each row names its basis and the month we checked it.

How much do insulation contractors cost in San Antonio?
JobLowTypicalHighBasisChecked
Attic insulation$1,700$2,100$2,500Per attic: typical range of customer-reported jobs (about $1 to $3 per sq ft). US national rangeOctober 2026

How we ranked San Antonio insulation contractors

We scored 93 San Antonio 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.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed fromIn San Antonio data
Reputation35%Bayesian-adjusted Google star ratingMeasured
Credentials15%Active state license 0.6, bond 0.2, workers’ comp 0.2Not yet collected
Review volume10%log10(reviews + 1) against the list maximumMeasured
Recency10%Share of reviews from the last 12 monthsNot yet collected
Availability10%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%Google main category 1.0, business name 0.7, additional category 0.5Measured
Proximity5%1.0 when based in the city, falling to 0 at the trade’s radiusMeasured
Completeness5%Website, photos, description, hours, claimed profile (0.2 each)Measured

Insulation contractors in San Antonio: frequently asked questions

Who is the best insulation contractor in San Antonio?

By CR Score, the highest-ranked insulation contractor in San Antonio, TX is Beluga Air with a CR Score of 93/100. It has 4.9★ from 1,344 Google reviews. It is open 24/7. TX Builder, Attic Insulation & Air Duct Cleaning Specialist (#2) and Critter One of San Antonio, LLC (#3) follow. We ranked 93 insulation contractors on 8 factors, last updated October 22, 2026.

How many insulation contractors are there in San Antonio?

ContractorsRanked ranks 93 insulation contractors serving San Antonio, TX. 38 of them are based in San Antonio; the rest serve it from nearby towns. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.

Which insulation contractors in San Antonio are open 24/7?

18 ranked insulation contractors in San Antonio post 24/7 hours. The highest-ranked are Beluga Air (#1), TX Builder, Attic Insulation & Air Duct Cleaning Specialist (#2) and Critter One of San Antonio, LLC (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which insulation contractors in San Antonio work on weekends?

53 of 93 ranked insulation contractors post Saturday hours and 35 post Sunday hours. The highest-ranked open Saturdays are Beluga Air (#1), TX Builder, Attic Insulation & Air Duct Cleaning Specialist (#2) and Critter One of San Antonio, LLC (#3). Posted hours are office hours; crews may book weekend jobs separately.

How much does attic insulation cost in San Antonio?

Attic insulation typically costs $1,700 to $2,500, with $2,100 typical (Per attic: typical range of customer-reported jobs (about $1 to $3 per sq ft). US national range). This is a national range, not adjusted for San Antonio. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do San Antonio insulation contractors have?

The median Google rating among 93 rated insulation contractors in San Antonio is 4.9★, with a median of 20 reviews. Jon Wayne Service Company has the most, 16,461 reviews, and ranks #4. We adjust ratings for review count, so a few five-star reviews cannot top the list.

How does ContractorsRanked rank insulation contractors?

Each insulation contractor gets a 0–100 CR Score from 8 published factors, led by reputation (35%), credentials (15%), review volume (10%) and recency (10%). Factors we cannot measure are left out, not scored as zero. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.

Do insulation contractors outside San Antonio count in this ranking?

Yes, if they are within 25 mi of the San Antonio city center, our service radius for insulation contractors. Each listing shows where the business is based and how far away it is. Proximity is 5% of the CR Score, so a nearby business gets a small edge.

Update log for San Antonio

  1. October 2026: CR Scores recalculated for 93 insulation contractors serving San Antonio.

More insulation contractors and San Antonio pages

Other trades in San Antonio