Verified license

Mersino Dewatering LLC

Auburn Hills, MI · Oakland CountyWell drilling

Call (248) 237-7993
Directions
License status
Active
checked September 30, 2026
License number
0460-0689-00
Michigan record
Services
4
Pump Installation and more
Licensed in
2 states
MI and KY

About Mersino Dewatering LLC

Mersino Dewatering LLC is a well drilling contractor based in Auburn Hills, MI (Oakland County). The Michigan licensing program lists license 0460-0689-00 as active, and we last checked the record on September 30, 2026.

The state record covers pump installation, well abandonment, well drilling and well repair. The business also holds a license in Kentucky.

This profile is built from public state license records checked on September 30, 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
0460-0689-00
License type
Well drilling
Status
Active
Last verified
September 30, 2026

Check this license yourself on the official Michigan lookup.

Also licensed in

  • Kentucky: license 0460-0689-00, well drilling (state lookup)
What the state record says

Kentucky certified water well driller (Division of Water certificate 0460-0689-00, held by David M Tersigni, certified for water wells; on the Division of Water's active certified driller list). Kentucky certifies the individual driller under KRS 223 and 401 KAR 6:320; a certified water well driller may construct, modify, repair and plug water wells and install the pump and pitless adapter as part of the well. Kentucky has no separate pump installer certificate. No water well records in the Kentucky Groundwater Data Repository since 2010 under this company's certificate prefix.

Kentucky: Kentucky certified water well driller (Division of Water certificate 0460-0689-00, held by David M Tersigni, certified for water wells; on the Division of Water's active certified driller list). Kentucky certifies the individual driller under KRS 223 and 401 KAR 6:320; a certified water well driller may construct, modify, repair and plug water wells and install the pump and pitless adapter as part of the well. Kentucky has no separate pump installer certificate. No water well records in the Kentucky Groundwater Data Repository since 2010 under this company's certificate prefix.

Services

What the Michigan record says Mersino Dewatering LLC is licensed or registered to do.

Pump Installation

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

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 Oakland County, Michigan.

Business address

Well water in Oakland County

Useful context before you call a contractor here.

18%of households in Oakland County drink from a private well (est.)
Not statewidewater test when a home with a well is sold: no statewide rule in Michigan, but some local areas require one
Open the Oakland County well guide

Typical costs for these services

National ranges to help you read a quote. They are not prices from Mersino Dewatering LLC; 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.

Certified labs nearby

Test your water before and after any work on the well.

Absolute Laboratories, Inc.Auburn Hills, MI · 1.5 miOakland Co. Health Division LaboratoryPontiac, MI · 5.7 miSoutheastern Oakland Co. Water Auth.Royal Oak, MI · 9.8 mi
All labs near here

Before you hire

  1. 1

    Confirm the license

    Look up license 0460-0689-00 on the Michigan state lookup and make sure it is active for the work you need. Open the Michigan 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 Mersino Dewatering LLC

Is Mersino Dewatering LLC licensed?

Yes. The Michigan record shows license 0460-0689-00 (well drilling) with the status "active", last checked on September 30, 2026. You can confirm it on the state lookup.

What services does Mersino Dewatering LLC offer?

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

What areas does Mersino Dewatering LLC serve?

The business is based in Oakland County (Auburn Hills, MI).

How do I contact Mersino Dewatering LLC?

Call (248) 237-7993. The address on the state record is 900 N Squirrel Rd Ste 210, Auburn Hills, MI 48326.

Other licensed contractors near Auburn Hills