In Mayville, NY, reliable plumbing, drainage, and excavationisn’t just about convenience. It’s about protecting your home, your business, and Chautauqua Lake. Whether you’re dealing with an aging septic system, water line trouble, or planning a new build, McCandless Plumbing & Excavation is the name locals trust.
For over 50 years, we’ve helped Mayville homeowners, business owners, and property managers handle everything from small repairs to large-scale excavation. We know the village codes, the lakefront regulations, and the challenges that come with seasonal weather and older properties.

Need help with water lines, leaks, or hot water systems? We’ve got you covered: fast, clean, and code-compliant.




Perfect for cottages, lake houses, and smaller homes. Enjoy instant hot water and lower energy bills with a tankless setup.
Sewer issues can escalate fast. We provide smart, fast, and local solutions, with long-term results.





We design and install efficient, code-compliant septic systems that work for your property and protect the lake






From new construction site prepto utility trenching, we offer safe, efficient digging services for homes and commercial builds.


Mayville homes, especially those near Chautauqua Lake, come with unique challenges: lakefront codes, older infrastructure, and seasonal stress on septic and drainage systems. That’s why you need a team that knows the area, not just the tools.
McCandless is that team.
Here’s what you get when you work with us:
Whether you’re fixing up a home, building something new, or just need answers, we’re just down the road and ready to help.
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