Your trusted plumbing engineering partner in San Mateo. We specialize in City of San Mateo mandatory Private Sewer Lateral (PSL) certification, trenchless pipe bursting, ground-up new build copper rough-ins, and high-efficiency hybrid heat pump conversions.
San Mateo is a vibrant Peninsula crossroads featuring historic neighborhoods like Baywood and Beresford alongside thriving commercial centers and new residential developments.
The City of San Mateo strictly enforces its Private Sewer Lateral (PSL) Ordinance . Property owners must have their sewer lateral inspected via closed-circuit camera and certified leak-free prior to property sales or major remodels exceeding $100,000. Daso Plumbing conducts certified PSL video diagnostics, performs trenchless hydraulic pipe bursting , and executes full ground-up copper piping for new residential builds across San Mateo.
Point-of-sale sewer compliance, aging clay lines, and galvanized pipe rust.
Home sales can be delayed or blocked in escrow if sewer lateral camera testing reveals offset joints, cracks, or tree root intrusion.
50- to 80-year-old vitrified clay pipes in Baywood and Beresford crack under ground pressure, allowing storm rainwater to flood city mains.
Internal tuberculation in post-war galvanized supply pipes restricts household volume, causing weak shower flow when appliances run.
Upgrading to modern clean-energy hybrid heat pump water heaters requires specialized plumbing layout, expansion tanks, and code permits.
Real systems installed by Daso crews on Peninsula properties.
Complete compliance support for the City of San Mateo Private Sewer Lateral ordinance. High-definition camera diagnostics, pressure testing, and certificate procurement.
Replace broken or root-choked sewer laterals without tearing up driveways or mature trees. We pull seamless HDPE pipe that carries a 50+ year structural lifespan.
Master rough-in plumbing and copper manifold engineering for new residential custom homes, whole-house additions, and luxury bathroom remodel projects in San Mateo.
Send the scope, the address, or just the problem. A licensed plumber reviews it and comes back with a written price — not a range.
