Best Drain Cleaning Services near San Mateo, CA
2 of these contractors are based in San Mateo; the others serve San Mateo from towns including San Francisco (16 mi), San Carlos (4 mi) and South San Francisco (9 mi).
5 open 24/7 · 7 open weekends · all 10 rated 4.5+ · 6 show a license
Data verified October 18, 2026
O'Grady Plumbing
Heise's Plumbing
Degree Hvac
Lutz Plumbing Inc
Wizard Plumbing
The 10 companies listed for San Mateo, CA clear blocked drains and sewer lines. Hours, jetting and camera work, and free estimate claims come from each company's own website. Ask who carries their own jetter rather than subcontracting it before you book.

Area overview: San Mateo, CA
The 10 contractors on this page are rated from 4.6 to 5.0 across 4,166 reviews; all 10 have 50 or more reviews. When customers rate these contractors on specific qualities, they most often praise professionalism (91%), responsiveness (83%) and quality (74%). The topics that come up most in reviews of the contractors on this page are "efficient", "estimates" and "price". 5 are open around the clock; 7 are open on Saturdays and 6 on Sundays. 6 show a license on their websites and 6 have a BBB rating of A or A+. 9 have ten or more years of experience, the longest 93 years. 5 offer emergency call-outs; 2 offer financing or payment plans; 4 give free estimates; 6 are family- or locally-owned and 5 list coupons or special offers. We have a website on file for all 10 of the contractors on this page; 9 publish a contact page; 8 list a public email and 2 take bookings online. We count these figures across the contractors on this page; distances are straight-line, and hours and prices change, so confirm the details with the contractor before you book.
What can I learn from these companies' websites?
A website is linked by all 10 listings for San Mateo. Look for two things: whether they own a jetter and a camera or hire them in, and whether they show repair work as well as cleaning. A company that only cables will keep coming back for the same line.