McCandless Plumbing & Excavation
Same Family You Trust,
New Ways to Serve You
Serving Western NY
McCandless Plumbing & Excavation is Jamestown, NY’s trusted plumbing and excavation contractor, serving Chautauqua County since 1975. We handle the full range of water and sewer needs for homeowners and businesses — from water line installation and sewer replacement to septic systems, French drain installation, and excavation. Our licensed team is available 24/7 for plumbing emergencies throughout Jamestown, Dunkirk, Fredonia, Lakewood, and surrounding Chautauqua County communities. Family-owned for over 50 years. Call (716) 403-2478 for a free estimate.

Our team installs and repairs residential and commercial water systems using the latest tools and code-compliant techniques.

We locate, repair, or replace damaged water lines to restore safe, clean water flow to your property. Our process minimizes disruption and meets all municipal regulations.

Main water lines can fail due to age, corrosion, or shifting soil. We offer fast, efficient replacements using durable materials that meet local codes.
We provide safe, code-compliant excavation and drainage services for new construction, water control, and system upgrades.

We design and install French drain systems that protect against water intrusion and soil erosion.

Keep your basement dry with sump pump installations and repairs that handle even heavy rainfall events.
We offer fast, accurate diagnostics and repairs for sewer systems using industry-standard tools and methods.

Whether it’s a broken, collapsed, or root-infiltrated line, we handle full repairs and replacements with minimal digging when possible.
Our video inspections identify issues quickly, from blockages to cracks, before excavation is even considered.

Our licensed septic specialists design and maintain systems that meet local environmental standards.

We assess your property and install efficient septic systems sized and placed to comply with county regulations.

Avoid system failure with routine inspections and timely repairs that extend the life of your septic tank.
In addition to plumbing and excavation, we offer HVAC solutions to keep your space comfortable all year.
Even, efficient heating from the ground up. Perfect for homes in colder regions of Western New York.


We install ductless systems for room-by-room climate control, a smart choice for renovations and additions.
Chautauqua County context that only a local contractor can speak to — Google rewards this:
Plumbing emergencies in Jamestown don’t wait for business hours. When a pipe bursts or a sewer backs up in the middle of the night, McCandless Plumbing & Excavation is ready to respond. We serve the entire Chautauqua County area — Jamestown, Dunkirk, Fredonia, and surrounding communities — with fast, licensed emergency plumbing service around the clock. Call (716) 403-2478 anytime.
For properties requiring well drilling or water treatment, we work alongside McCandless Well Drilling and Services — a trusted name in Chautauqua County with 400+ Google reviews. Together we cover every water system need from the well to the tap.
We also proudly serve homeowners and businesses across Warren County, PA.
Full-service plumbing, sewer, and excavation services in the heart of Warren County.
Frequently Asked Questions
We offer water line installation, sewer repair, septic system installation, drainage solutions, excavation, and HVAC services.
Yes. We proudly serve all communities across Chautauqua County with licensed, local service.
We’re a family-owned company with over 50 years of experience, trusted across the region for honest, high-quality work.
Costs vary based on the scope and materials. We provide detailed estimates upfront with no hidden fees.
Yes. We respond to emergency plumbing issues, including sewer backups, broken water lines, and drain clogs.
Absolutely. All our services are available across every city and village in Chautauqua County.
We provide transparent pricing and will inform you of any required deposits before work begins.
Yes. We install radiant heating systems for both new builds and retrofits across the region.