Gregory Drilling
Commercial, Industrial and Residential Drilling
Gregory DrillingGregory Drilling

About Us


Meet Your Pacific Northwest Drilling Team
Larry Gregory started the tradition of quality drilling and friendly service back in 1975. Today, sons Chad and Chris are proud to be part of that tradition as Certified Well Drillers (CWD).

After over 30 years, we offer you more experience, a larger drilling team, and better drilling equipment than ever. When combined with our no-nonsense approach to business and drilling, you can trust Gregory Drilling to deliver excellent results on your drilling job.

Contact us today to experience the Gregory Drilling difference.

Experience, Teams & Equipment for Large Jobs, Medium Jobs, and Smaller Jobs
Whether it's seven-months of geotechnical drilling for the I-5 HOV expansion, installing micro-mini piles to stabilize a road, or two, thirty-foot geotechnical borings in Seattle, Gregory Drilling is your drilling solution - the crews, experience and equipment to get in, do your drilling job right and let you get on with your business.

Memberships & Certifications
International Ground Source Heat Pump Association (IGSHPA)
Master Builders Association (MBA) of King & Snohomish Counties
National Groundwater Association (NGA), nationally certified member
National Groundwater Association (NGA) Certified Well Drillers
Washington State Ground Water Association

Licensed in:
North Dakota
South Dakota

Beyond our certifications and licenses, we take pride in giving you a positive experience when it comes to your drilling jobs.

Make the professional, friendly Gregory Drilling team your drilling solution by contacting us today.

Geotechnical drilling
Geotechnical drilling

Geotechnical drilling at high security site
Geotechnical drilling
at high security site

Operating drill rig
Operating drill rig

One of many specialized drilling rigs
One of many specialized drilling rigs


Master Builders Association member

Disabled American Veteran

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Gregory Drilling
17609 NE 70th Street
Redmond, WA, 98052
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