Is Your Home’s Water Safe?

Book our professional water testing service to know for sure!

Longs GCS LLC gives you clear answers with fast, reliable water testing, so you can protect your family, your investment, and your peace of mind.

We handle the testing so you don’t have to worry.

Why Choose Longs GCS Water Testing?

Detect harmful bacteria & contaminants fast
Meet real estate & local health code requirements
Specialized local testing profiles (Westchester, East Fishkill, CT)
Easy, in-home sampling
Fast turnaround with expert guidance

(914) 260-8571

Consult with an expert

Request Your Home Inspection Services

Schedule your Home Inspection online – 24/7 availability

Don’t Risk Your Family’s Health. Test Your Water Today!

Our Service Areas

Our team provides reliable services throughout the tri-county region including Westchester County, NY, Dutchess County, NY, and Fairfield County, CT.

We proudly serve Yorktown, Bedford, Chappaqua, Pound Ridge, Larchmont, Rye, Mamaroneck, White Plains, and many other local neighborhoods throughout the region.

Where We Test Water Most

Private wells dominate the towns we work in: over 90% of North Castle draws from drilled wells, and it is a similar story in Bedford Corners, Pound Ridge, Thompson Ridge, and around our home hamlet of Mohegan Lake. Browse all the areas we serve.