Verified license

Guardino Well Drilling Inc

Morgan Hill, CA · Santa Clara CountyWell drilling and pump installation

Call (408) 779-5904
WebsiteDirections
License status
Active
checked September 29, 2026
License number
664960
California record
Services
5
Pump Installation and more
Counties served
8
on the state record

About Guardino Well Drilling Inc

Guardino Well Drilling Inc is a well drilling and pump installation contractor based in Morgan Hill, CA (Santa Clara County). The California licensing program lists license 664960 as active, and we last checked the record on September 29, 2026.

The state record covers pump installation, pump repair, well abandonment, well drilling and well repair. It lists 8 counties where the business works, including Santa Clara County, Los Angeles County and San Benito County.

This profile is built from public state license records checked on September 29, 2026. Well Water Insider does not rate or endorse contractors. Own this business? Claim the profile to add photos, hours and a description.

License record

Verified against state records
License number
664960
License type
Well drilling and pump installation
Status
Active
Expires
February 28, 2027
Last verified
September 29, 2026

Check this license yourself on the official California lookup.

What the state record says

Holds an active California C-57 Well Drilling contractor license (CSLB license 664960, corporation, first issued 1993, current through 2027-02-28). The C-57 classification covers drilling, casing, cleaning, repairing and destroying water wells and installing and repairing well pumps. Filed 723 well completion reports with the Department of Water Resources since 2016 (609 new wells, 312 of them domestic supply; 97 well destructions), most recently in September 2026, mostly in Santa Clara, Los Angeles and San Benito counties.

Services

What the California record says Guardino Well Drilling Inc is licensed or registered to do.

Pump Installation

Setting a new submersible or jet pump with the pressure tank, switch and controls.

Pump Repair

Tracking down low pressure, short cycling or no water, then repairing or replacing parts of the pump system.

Well Abandonment

Sealing an unused well to state standards so it cannot carry surface water down into the aquifer.

Well Drilling

Drilling a new private well, setting the casing and grouting it the way state rules require.

Well Repair

Fixing casings, caps, pitless adapters and other parts of an existing well.

Service area

Based in Santa Clara County, California. The state record lists 8 counties.

Approximate location (Santa Clara County)Counties on the state record

  • Santa Clara County
  • Los Angeles County
  • San Benito County
  • Monterey County
  • San Mateo County
  • San Joaquin County
  • Placer County
  • Alameda County

Well water in Santa Clara County

Useful context before you call a contractor here.

2%of households in Santa Clara County drink from a private well (est.)
230 to 400 feet; the median of 1,315 domestic wells reported to DWR since 2000 is 300 feettypical private well depth
Not statewidewater test when a home with a well is sold: no statewide rule in California, but some local areas require one
Open the Santa Clara County well guide

Typical costs for these services

National ranges to help you read a quote. They are not prices from Guardino Well Drilling Inc; ask for a written estimate.

Submersible pump replacement$1,000 to $2,500installed; deep wells cost more
Pressure tank replacement$800 to $1,500installed
New well, complete$6,000 to $16,000typical 200 ft well with pump; drilling alone about $20 to $30 per foot; deeper wells cost more
Shock chlorination$80 to $200by a contractor; under $30 to do yourself

National 2026 ranges. Sources, checked September 2026: HomeGuide cost guides, Angi.

Before you hire

  1. 1

    Confirm the license

    Look up license 664960 on the California state lookup and make sure it is active for the work you need. Open the California lookup.

  2. 2

    Get a written estimate

    Ask for the scope, parts, depth or pump size, permit fees and warranty in writing. Compare two or three quotes for big jobs.

  3. 3

    Ask about permits and the well log

    New wells and many repairs are reported to the state. Ask who files the paperwork and for a copy of the well log.

  4. 4

    Test the water after the work

    Any work on a well can disturb bacteria. Test for coliform bacteria once the job is done.

Questions about Guardino Well Drilling Inc

Is Guardino Well Drilling Inc licensed?

Yes. The California record shows license 664960 (well drilling and pump installation) with the status "active", last checked on September 29, 2026. You can confirm it on the state lookup.

What services does Guardino Well Drilling Inc offer?

The state record lists pump installation, pump repair, well abandonment, well drilling and well repair. Call to confirm they take on your type of job.

What areas does Guardino Well Drilling Inc serve?

The business is based in Santa Clara County (Morgan Hill, CA). The state record lists 8 counties, including Santa Clara County, Los Angeles County, San Benito County, Monterey County and San Mateo County.

How do I contact Guardino Well Drilling Inc?

Call (408) 779-5904 and visit their website. The address on the state record is 4825 Croy Road, Morgan Hill, CA 95037.

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