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Best Well Service in Los Angeles, CA

Compare 12 local well service providers in Los Angeles. Verified listings with real contact info.

12 verified providers · Updated 2026-04-16

Quick Compare

1

Roscoe Moss Co

4.5 ★ (29 reviews)

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2

C&J Energy Services

4.4 ★ (10 reviews)

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3

M R Drilling

4.3 ★ (12 reviews)

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1

Roscoe Moss Co

4.5 (29 reviews)
4360 Worth St, Los Angeles, CA 90063
2

C&J Energy Services

4.4 (10 reviews)
19431 S Santa Fe Ave, Compton, CA 90221
3

M R Drilling

4.3 (12 reviews)
13124 Firestone Blvd, Santa Fe Springs, CA 90670
Mon–Fri 6am–5pm · Sat–Sun Closed
4

Jet Drilling

5.0 (1 reviews)
2656 St Louis Ave, Signal Hill, CA 90755
Open 24 Hours
5

Oil Well Service Company

5.0 (3 reviews)
1241 E Burnett St, Signal Hill, CA 90755
Mon–Fri 6am–2pm · Sat–Sun Closed
6

Choice Drilling

3.6 (9 reviews)
11029 Sutter Ave, Pacoima, CA 91331
Mon–Sat 6am–4:30pm · Sun Closed
7

Big Johnny's Drilling

5.0 (1 reviews)
1171 E Laxford Rd, Azusa, CA 91702
8

Nattan Drilling

1335 Pacific Ave, Long Beach, CA 90813
Mon–Fri 9am–5pm · Sat–Sun Closed
9

Sinclair Drilling Fluids

4.0 (1 reviews)
222 E C St, Wilmington, CA 90744
10

Well Water USA LLC

4.0 (1 reviews)
15131 Triton Ln # 104, Huntington Beach, CA 92649
11

General Pump Company Inc.

4.4 (19 reviews)
159 N Acacia St, San Dimas, CA 91773
Mon–Fri 7:30am–4pm · Sat–Sun Closed
12

Millennium Environmental Inc.

5.0 (3 reviews)
2936 E Coronado St, Anaheim, CA 92806
Mon–Fri 5am–5pm · Sat 9am–5pm · Sun Closed

Frequently Asked Questions

How often should I have my well serviced in California?

Most state environmental agencies recommend annual well water testing and periodic system inspections. Given documented groundwater contamination issues in some areas, annual testing is especially important. Have the system mechanically inspected every 3-5 years.

What does routine well maintenance include?

A routine well maintenance visit includes visual inspection of the well cap and casing, checking the pressure tank and switch, testing water pressure and flow rate, inspecting electrical connections, and collecting a water sample for testing.

How do I find a reliable well service company in California?

Look for companies licensed by the **California Board for Professional Engineers, Land Surveyors, and Geologists (BPELSG)** for engineering/geology work, or holding a **C-57 Well Drilling Contractor** license (CSLB) for well drilling. Verify they carry liability insurance and have experience with your type of well and local geology. Your **county Environmental Health** office can explain local lists and permit requirements.

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