Crawl Space Repair in Altadena, California

Reviewed by Michael PetersonΒ· Licensed Home Inspector

38 crawl space companies serve Altadena, California, together holding 3,550 customer reviews. Sunshine Foundation Repairs is the highest-rated at 5.0β˜… (432 reviews). Local crawl space repair typically runs $1,450–$5,700, and full encapsulation $2,800–$7,800. The most common services offered here are crawl space repair, foundation repair, mold removal.

Find trusted local contractors for crawl space encapsulation in Altadena, waterproofing in Altadena, mold removal in Altadena, and more in Altadena.

Local Price Estimates β€” Altadena

Encapsulation$2,800–$7,800
Repair$1,450–$5,700
Waterproofing$1,350–$4,550
Mold Removal$450–$4,000
Inspection$150–$350

* Estimates based on local market rates. Get free quotes for exact pricing. See the full repair cost guide, encapsulation cost guide, or cost calculator.

Crawl Space Contractors in Altadena

1848 Evergreen St B, Duarte, CA 91010, USA

5.0

26 reviews

Crawl Space Repair

10491 Calabash Ave, Fontana, CA 92337, USA

5.0

6 reviews

Waterproofing

405 E Woodbury Rd, Altadena, CA 91001, USA

5.0

3 reviews

Crawl Space Repair

9864 Glenoaks Blvd, Sun Valley, CA 91352, USA

5.0

24 reviews

Foundation Repair

332 N Pacific Ave #106, Glendale, CA 91203, USA

5.0

1 reviews

Foundation Repair

16116 Leadwell St, Van Nuys, CA 91406, USA

5.0

277 reviews

Foundation Repair

2255 Foothill Blvd Suite 210, La CaΓ±ada Flintridge, CA 91011, USA

5.0

23 reviews

Mold Removal

234 E Colorado Blvd suite 702, Pasadena, CA 91101, USA

5.0

3 reviews

Mold Removal

2070 E Walnut St, Pasadena, CA 91107, USA

5.0

36 reviews

Crawl Space Repair

70 S Lake Ave, Pasadena, CA 91101, USA

5.0

1 reviews

Mold Removal

2504 Teasley St, La Crescenta-Montrose, CA 91214, USA

5.0

10 reviews

Mold Removal

4205 W Burbank Blvd #107, Burbank, CA 91505, USA

5.0

138 reviews

Crawl Space Repair

1030 Foothill Blvd ste 206, La CaΓ±ada Flintridge, CA 91011, USA

5.0

1 reviews

Mold Removal

905 Westminster Ave Unit K, Alhambra, CA 91803, USA

5.0

22 reviews

Insulation

169 S Mentor Ave, Pasadena, CA 91101, USA

5.0

47 reviews

Crawl Space Repair

35 N Lake Ave # 710, Pasadena, CA 91101, USA

5.0

16 reviews

Crawl Space Repair

18327 Napa St, Northridge, CA 91325, USA

5.0

432 reviews

Foundation Repair

1709 Standard Ave, Glendale, CA 91201, USA

5.0

58 reviews

Crawl Space Repair

117 E Colorado Blvd #600, Pasadena, CA 91105, USA

5.0

20 reviews

Crawl Space Repair

E Holly St, Pasadena, CA 91103, USA

5.0

1 reviews

Crawl Space Repair

155 N Lake Ave 8th floor, Pasadena, CA 91101, USA

5.0

2 reviews

Insulation

15207 Hesby St, Van Nuys, CA 91403, USA

5.0

43 reviews

Crawl Space Repair

12402 Killion St, Valley Village, CA 91607, USA

5.0

80 reviews

Insulation

10940 Wilshire Blvd, Los Angeles, CA 90024, USA

5.0

137 reviews

Insulation

280 E Palm Ave, Burbank, CA 91502, USA

4.9

57 reviews

Foundation Repair

2333 E Washington Blvd, Pasadena, CA 91104, USA

4.9

10 reviews

Crawl Space Repair

2411 Empire Ave, Burbank, CA 91504, USA

4.9

259 reviews

Foundation Repair

7441 Anaconda Ave, Garden Grove, CA 92841, USA

4.9

221 reviews

Foundation Repair

4001 W Alameda Ave Suite 106, Burbank, CA 91505, USA

4.8

360 reviews

Crawl Space Repair

830 S Glendale Ave, Glendale, CA 91205, USA

4.8

57 reviews

Crawl Space Repair

7301 Madison St, Paramount, CA 90723, USA

4.8

1026 reviews

Crawl Space Repair

901 S Fremont Ave, Alhambra, CA 91803, USA

4.8

43 reviews

Insulation

55 E Huntington Dr, Arcadia, CA 91006, USA

4.7

50 reviews

Crawl Space Repair

611 N Brand Blvd Suite 1300, Glendale, CA 91203, USA

4.7

10 reviews

Waterproofing

1410 N Lake Ave, Pasadena, CA 91104, USA

4.7

6 reviews

Foundation Repair

2060 Huntington Dr Suite 1, San Marino, CA 91108, USA

4.6

33 reviews

Mold Removal

311 E Stocker St #201, Glendale, CA 91207, USA

4.5

11 reviews

Waterproofing

127 S Brand Blvd Ste 320, Glendale, CA 91204, USA

0.0

0 reviews

Waterproofing

FAQs β€” Crawl Space Services in Altadena

How much does crawl space repair cost in Altadena?

Crawl space repair in Altadena, California typically costs between $1,450 and $5,700, depending on the extent of damage and services required. With 38 local companies to compare, getting 2–3 quotes usually saves 15–30%.

How much does crawl space encapsulation cost in Altadena?

Crawl space encapsulation in Altadena typically costs between $2,800 and $7,800. The price depends on the size of your crawl space and the materials used.

Who is the top-rated crawl space company in Altadena?

Sunshine Foundation Repairs is the highest-rated crawl space contractor in Altadena with a 5.0β˜… rating from 432 reviews. Golden Retrofit & Foundation Repair (5.0β˜…, 277 reviews) is also highly rated. Ratings shown are from public customer reviews.

How many crawl space contractors serve Altadena?

38 crawl space companies are listed for Altadena. The average local rating is 4.9β˜… across 3,550 reviews. Contractors in nearby Los Angeles and San Diego also serve the area.

What crawl space services are available in Altadena?

Altadena contractors most commonly offer crawl space repair, foundation repair, mold removal, alongside repair, insulation, cleaning, and inspection. Compare providers above to see who offers what.

What should Altadena homeowners know before hiring a crawl space contractor?

Even in dry climates, a vapor barrier on the crawl space floor is recommended. It blocks soil gas (including radon), reduces dust, and prevents the rare but damaging moisture event from causing mold. Always verify licensing and insurance, and get itemized quotes from at least two Altadena-area companies before signing.

Crawl Space Concerns in California

While the Southwest is dry most of the year, the combination of expansive soils and occasional heavy rain creates unique foundation challenges. Homes with crawl spaces benefit from proper drainage and vapor barriers, even in arid climates, to protect against monsoon moisture and soil gas.

!Expansive soils (bentonite clay) cause more foundation damage than any other natural hazard in the US
!Extreme heat dries soil unevenly, creating foundation settlement
!Monsoon season brings sudden water intrusion into otherwise dry crawl spaces
!Scorpions, spiders, and rodents seek shelter in cool crawl spaces
!Crawl spaces are less common here but homes that have them face unique challenges

Local Tip β€” California

Even in dry climates, a vapor barrier on the crawl space floor is recommended. It blocks soil gas (including radon), reduces dust, and prevents the rare but damaging moisture event from causing mold.

Get Free Quotes in Altadena, California

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Pro Tip

Prices vary by location, crawl space size, and severity. Always get 2–3 quotes before hiring.