Crawl Space Waterproofing in Temple City, California
5 of the 36 crawl space companies serving Temple City, California specifically list waterproofing among their services, led by Surfacing And Waterproofing (5.0★, 55 reviews). Local waterproofing typically runs $1,350–$4,800.
Get drainage and sump pump quotes from Temple City pros who handle wet crawl spaces. 5 local pros offer waterproofing services. For full service comparisons, see all crawl space contractors in Temple City or encapsulation pros in Temple City.
Temple City Waterproofing Cost — Southwest — Monsoon + Flash Flood
Annual precipitation: 8–15 inches; 40–60% during monsoon (July–September).
Cost varies with crawl space perimeter, sump pump capacity, discharge length, and exterior grading work. Get 2–3 quotes for an exact number.
Why Waterproofing Matters in Temple City
The Southwest is dry most of the year, so waterproofing here is event-driven rather than continuous. Monsoon thunderstorms can drop more rain in 30 minutes than the area normally sees in a month. Most homes do not need a full interior drain system — but they do need exterior grading, downspout management, and a vapor barrier. Homes near washes or in flood plains need full waterproofing.
What a Temple City Waterproofing System Should Include
- ✓Vapor barrier (10–12 mil sufficient — low humidity year-round)
- ✓Exterior French drain along uphill side of property if grading is unfavorable
- ✓Extended downspouts (10+ feet) — monsoon bursts overwhelm short ones
- ✓Sump pump only if home is in a documented flood plain or near a wash
- ✓Hard-piped drain to a daylight outlet (most Southwest soils drain well)
- ✓Pest exclusion at all foundation penetrations
Interior vs Exterior Drainage in California
Recommendation
Most Southwest homes do NOT need interior perimeter drains. Exterior grading and downspout extensions handle 90% of moisture events. Reserve full systems for flood plain homes or those near washes.
Sump Pump Sizing
Skip the sump pump unless you are in a flood plain or near a wash. The dry climate means the pump rarely runs and seal degrades from disuse. If you do install one, prioritize a model rated for dry-cycle operation.
What to Watch For in California
- !Avoid contractors who push full interior drainage systems for non-flood-plain homes — likely overselling
- !In expansive-soil areas, exterior trench drains can crack as soils heave — check soil report first
- !Verify discharge daylight outlet is not on a neighbor's property (legal issue in the Southwest)
Waterproofing Contractors in Temple City
Surfacing And Waterproofing
21304 Hart St, Canoga Park, CA 91303, USA
55 reviews
Gaveet Waterproofing & Restoration
611 N Brand Blvd Suite 1300, Glendale, CA 91203, USA
10 reviews
California Decking & Waterproofing
10771 Sherman Way, Sun Valley, CA 91352, USA
49 reviews
A & E Waterproofing
311 E Stocker St #201, Glendale, CA 91207, USA
11 reviews
Air Tight Insulation of El Monte
2125 Seaman Ave, South El Monte, CA 91733, USA
28 reviews
Alhambra Thermal Insulation
905 Westminster Ave Unit K, Alhambra, CA 91803, USA
22 reviews
Rapid Response Restoration of Pasadena
169 S Mentor Ave, Pasadena, CA 91101, USA
47 reviews
Sunshine Foundation Repairs
18327 Napa St, Northridge, CA 91325, USA
432 reviews
Clean CrawlSpace Inc.
3100 Dutton Ave Ste. 142E, Santa Rosa, CA 95407, USA
60 reviews
Pasadena Repair Pro – Handyman & Home Repair
35 N Lake Ave # 710, Pasadena, CA 91101, USA
16 reviews
Cool Space Attic Insulation
14 Centerpointe Dr, La Palma, CA 90623, USA
24 reviews
Total Water Damage Restoration
5829 Temple City Blvd, Temple City, CA 91780, USA
48 reviews
Infinity Shower Pans
14445 Tedford Dr, Whittier, CA 90604, USA
18 reviews
Foundation Repair LA Inc.
9864 Glenoaks Blvd, Sun Valley, CA 91352, USA
24 reviews
California Foundation Works
911 E 31st St Unit #A, Los Angeles, CA 90011, USA
18 reviews
Golden Retrofit & Foundation Repair
16116 Leadwell St, Van Nuys, CA 91406, USA
277 reviews
Build It Bui Handyman
Rosemead Blvd, Temple City, CA 91780, USA
2 reviews
ALL US Mold Removal & Remediation Rosemead CA
3733 Rosemead Blvd #204, Rosemead, CA 91770, USA
2 reviews
Elevate Pro Water Restoration Burbank
4205 W Burbank Blvd #107, Burbank, CA 91505, USA
138 reviews
Instant Fluency Water Damage Remediation & Mold Removal
1117 W Mines Ave, Montebello, CA 90640, USA
6 reviews
The Foundation Works
2411 Empire Ave, Burbank, CA 91504, USA
259 reviews
Attic Projects
1607 W Orange Grove Ave Suite A, Orange, CA 92868, USA
615 reviews
Advanced Attic Solutions
5659 Shirley Ave, Tarzana, CA 91356, USA
85 reviews
SERVPRO of Monterey Park
670 Monterey Pass Rd Ste 188E, Monterey Park, CA 91754, USA
50 reviews
Best Foundation Repair
280 E Palm Ave, Burbank, CA 91502, USA
57 reviews
Professional Foundation Repair
7441 Anaconda Ave, Garden Grove, CA 92841, USA
221 reviews
Clean CrawlSpace Inc
765 E Brokaw Rd, San Jose, CA 95112, USA
19 reviews
GKU Construction
830 S Glendale Ave, Glendale, CA 91205, USA
57 reviews
Arcadia Top Contractors
55 E Huntington Dr, Arcadia, CA 91006, USA
50 reviews
Seismic Safety Foundation Repair
1410 N Lake Ave, Pasadena, CA 91104, USA
6 reviews
Mold Zero Services
2060 Huntington Dr Suite 1, San Marino, CA 91108, USA
33 reviews
All-American Mold Remediation and Consulting, LLC.
222 W 6th St #400, San Pedro, CA 90731, USA
5 reviews
Prax concrete services
3802 W 27th St, Los Angeles, CA 90018, USA
0 reviews
Waterproofing FAQs — Temple City, California
Which companies offer crawl space waterproofing in Temple City?
Surfacing And Waterproofing (5.0★), Gaveet Waterproofing & Restoration (4.7★), California Decking & Waterproofing (4.6★) list waterproofing in Temple City. 5 of 36 local crawl space companies tag this service directly.
How many crawl space contractors serve Temple City?
36 crawl space companies are listed for Temple City; Sunshine Foundation Repairs is the highest-rated at 5.0★ (432 reviews). Pros in nearby Los Angeles and San Diego also cover the area.
How much does crawl space waterproofing cost in Temple City, California?
Crawl space waterproofing in Temple City, California typically costs $1,350–$4,800 for a complete interior drainage system with sump pump. Southwest — Monsoon + Flash Flood pricing reflects local labor rates and the specific drainage scope each climate demands.
Do I need an interior or exterior drainage system in Temple City?
Most Southwest homes do NOT need interior perimeter drains. Exterior grading and downspout extensions handle 90% of moisture events. Reserve full systems for flood plain homes or those near washes.
What size sump pump do I need in Temple City?
Skip the sump pump unless you are in a flood plain or near a wash. The dry climate means the pump rarely runs and seal degrades from disuse. If you do install one, prioritize a model rated for dry-cycle operation.
Why is exterior grading important for waterproofing in California?
The most important fix in the Southwest. 6-inch fall over 10 feet. Verify after any monsoon — soil shifts more here than wetter regions. Many Southwest waterproofing problems resolve with grading alone.
When should I schedule waterproofing in Temple City?
October through April — outside monsoon season and before extreme summer heat (above 100°F crawl space temps make work dangerous).
Expected ROI
Lower than wetter regions — typical payback is 7–12 years. Primary financial benefits: avoiding one monsoon-event interior flood ($5K–$15K) and improved indoor air quality (vapor barrier alone).
Best Season to Schedule
October through April — outside monsoon season and before extreme summer heat (above 100°F crawl space temps make work dangerous).
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Also Serving Temple City
Waterproofing Guides
Southwest — Monsoon + Flash Flood
Annual precipitation: 8–15 inches; 40–60% during monsoon (July–September)