Local service guide
Plumbing Services in San Francisco: Hiring Guide
Arrange Plumbing Services in San Francisco by asking a plumber to diagnose the problem and quote the repair scope before you authorize replacement work. For sewer backups, ask the plumber to locate the fault within the upper or lower lateral: SFPUC handles necessary lower-lateral repairs under most circumstances after its own inspection. For a toilet replacement, check rebate eligibility and the application sequence before choosing the model. [1] [2]
Describe the problem before booking
Tell the plumber which fixtures you cannot use, when you first noticed the problem and what you have tried. Send photographs of the leak or fixture, plus any model information you can find. For a backup, describe where you see wastewater. Ask whether the appointment includes diagnosis and repair or diagnosis alone.
Request the visit charge, any after-hours charge and the approval process for additional work before booking. Ask the plumber to explain the proposed test and what documentation you will receive. If you rent or share responsibility for the building, contact the owner or building manager before authorizing work on shared plumbing.
Locate a sewer problem before approving excavation
SFPUC distinguishes the upper lateral, which runs from the building to the curb, from the lower lateral, which runs from the curb to the sewer main. The property owner owns and maintains both sections, including the vent and trap. SFPUC advises owners experiencing sewage backups to hire a licensed plumber or contractor to inspect the lateral. [1]
Ask the plumber to identify the affected section and explain whether maintenance can resolve the problem. Request photographs or inspection footage if the plumber uses a camera, and ask for a written explanation of the proposed repair. Keep that record when seeking another quote or contacting the utility.
Owners must arrange necessary upper-lateral repair or replacement. If the plumber identifies a lower-lateral problem that maintenance cannot fix, submit a service request through 311. SFPUC will inspect it and, under most circumstances, complete necessary lower-lateral repair or replacement at no extra cost. Ask for its determination before authorizing private lower-lateral excavation. [1]
Compare complete repair scopes
Ask each plumber to quote the same work. For a leaking pipe, request the proposed repair location, materials and responsibility for opening and restoring walls. For a fixture replacement, identify the model, supply connections, removal and disposal. For a water heater, ask the plumber to describe the equipment and installation scope before you compare totals.
Ask who will confirm permit requirements and handle any required application or inspection. SFPUC directs owners planning upper-lateral repair or replacement to contact the Department of Building Inspection to verify whether they need a permit. Its guidance lists 415-558-6570 for that inquiry. [1]
Request the contractor's license details and insurance documentation. Agree on a written limit for additional work and require your approval before the plumber exceeds it. Ask what repair warranty the plumber offers, what it covers and whom you should contact if the problem returns.
Plan a toilet replacement around rebate requirements
SFPUC offers qualifying customers up to $100 for an eligible toilet with a maximum flush volume up to 1.1 gallons, or up to $200 for an eligible 0.8-gallon model. The existing toilet must use at least 1.6 gallons per flush, the property must have an SFPUC water account and the replacement must appear on the program's Qualified Product List. Check both tank and bowl if you buy them separately. Dual-flush and flushometer toilets do not qualify. [2]
For one to four replacements at a property, purchase and install qualifying toilets, then submit the application with purchase documentation within 90 days of purchase. SFPUC limits single-family properties and individual multifamily dwelling units to two qualifying toilets each. Commercial properties and multifamily common areas may replace all qualifying toilets. [2]
For five or more replacements at one property, submit the initial application before purchasing or installing. Arrange both pre-project and post-project inspections. The existing toilets must use at least 1.6 gallons per flush and remain operable at the pre-project inspection. Wait for SFPUC's eligibility confirmation after that inspection before buying replacements. Then complete the online application and provide proof of purchase and installation within 90 days of the pre-inspection. Plan the plumber's schedule around that deadline. [2]
Keep an itemized receipt showing the purchase date, invoice or receipt number, make and model, quantity, cost per toilet and total purchase amount. SFPUC caps each rebate at the toilet purchase price, excluding sales tax, shipping and installation. Funding is limited. Ask the plumber to separate fixture costs from installation and disposal, and confirm the program terms before ordering. [2]
Prepare payment paperwork and check water use
After completing the rebate application, send a completed and signed IRS Form W-9 to the San Francisco Controller's Office. SFPUC cannot issue the rebate without a W-9 on file there. If you are neither the property owner nor the water account holder, the program also requires their written approval. Gather the required forms before you submit the application. [2]
SFPUC states that its adopted water and sewer rate increases took effect July 1, 2026. Customers pay fixed charges and usage charges. Compare consumption and billing periods on your recent bills before attributing a higher total to a plumbing leak. Bring those bills to the appointment and note changes in household water use. [3]
Ask the plumber to explain the evidence for a leak and how they will confirm the repair. For preventive sewer care, SFPUC recommends a licensed inspection at least once every five years and advises owners to keep fats, oils and grease out of drains. [1]
SFPUC maximum rebates for qualifying tank toilets
Local details that affect your job
Lower-lateral repairs need a utility determination
If your plumber locates a lower-lateral defect that maintenance cannot resolve, contact 311 for an SFPUC inspection. Under most circumstances, the utility completes necessary repair or replacement at no extra cost. Keep the plumber's location findings and request the utility's next steps before approving excavation. [1]
Larger toilet projects require two inspections
For five or more toilets at one property, apply before buying or installing. Keep the existing qualifying toilets operable for the pre-project inspection, and wait for SFPUC's eligibility confirmation before purchasing. Arrange the post-project inspection too. Complete the application and provide proof of purchase and installation within 90 days of the pre-inspection. SFPUC also requires a signed IRS Form W-9 on file with the San Francisco Controller's Office before it can issue payment. [2]
Confirm upper-lateral permits with DBI
SFPUC directs owners planning upper-lateral repair or replacement to the Department of Building Inspection at 415-558-6570 to verify permit requirements. Ask your plumber to identify who will make that inquiry and handle any required permit or inspection. [1]
Choose the next step for your plumbing job
| Situation | Next step | Before approving work |
|---|---|---|
| Sewage backs up inside the property | Hire a licensed plumber or contractor to inspect the lateral. | Ask them to locate the problem and assess whether maintenance can resolve it. |
| Inspection finds an upper-lateral defect | Arrange repair or replacement if maintenance cannot fix it. | Verify permit requirements with the Department of Building Inspection. |
| Inspection finds a lower-lateral defect | Request an SFPUC inspection through 311. | Ask for the utility's determination about necessary repair or replacement. |
| Replace one to four toilets at a property | Check eligible models, purchase and install, then apply. | Submit purchase documentation within 90 days of purchase; arrange the required W-9. |
| Replace five or more toilets at a property | Apply first; keep existing qualifying toilets operable for pre-inspection and await eligibility confirmation before buying. | Arrange pre-project and post-project inspections; provide purchase and installation proof within 90 days of pre-inspection and arrange the required W-9. |
Your hiring checklist
- Record symptoms, affected fixtures and work you have already tried.
- Send photographs and fixture model details before the appointment.
- Confirm the visit charge and the scope of the initial diagnosis.
- Request license details, insurance documentation and written warranty terms.
- Ask the plumber to identify the affected sewer-lateral section before quoting excavation.
- Assign responsibility for confirming permits and coordinating inspections.
- Ask the plumber to coordinate toilet ordering and installation with your rebate application plan.
- Compare matching repair scopes, agree on an approval limit for extra work and retain invoices.
Frequently Asked Questions
Does SFPUC pay for sewer-lateral repairs?
Owners maintain the entire lateral and arrange necessary upper-lateral repairs. SFPUC generally completes necessary lower-lateral repair or replacement at no extra cost after its inspection. Contact 311 when your plumber identifies a lower-lateral problem that maintenance cannot fix. [1]
Do I need a permit for a sewer-lateral repair?
Verify requirements for your proposed work with the Department of Building Inspection. SFPUC directs owners planning upper-lateral repair or replacement to that department and lists 415-558-6570. Ask your plumber who will handle any required permit and inspection. [1]
Can I claim a rebate for any efficient toilet?
No. SFPUC requires a qualifying existing toilet, an SFPUC water account and a replacement on its Qualified Product List. Dual-flush and flushometer toilets do not qualify. Check the exact tank and bowl before buying, and follow the application sequence for your project size. [2]
What should a written plumbing quote include?
Request the diagnosis, repair location, equipment or materials, labor, disposal, restoration and any permit-related work. Ask the plumber to identify exclusions and explain how you will approve extra charges. Keep fixture purchase costs separate if you plan to apply for a rebate.
Sources and scope
This guide combines the sources below with practical planning guidance. Figures apply to the stated geography and period; request a written quote for your property.