Quick answer: If there is a judgment against you and you were never served with the lawsuit, you may be the victim of defective service — sometimes called “sewer service,” a practice in which process servers falsely claim to have served a defendant they never actually found. The judgment may be void. The first step is locating the proof of service filed with the court and reading it carefully. If the proof of service is defective, you must file a Motion to Set Aside the Default Judgment to undo it — and you must act promptly.
What Is Sewer Service?
Sewer service is a slang term for a fraudulent or defective service of process — named for the idea that the summons and complaint ended up in the sewer rather than in the defendant’s hands. It happens when a process server files a proof of service with the court claiming to have served a defendant, when in reality the defendant was never actually served.
Sewer service is not a new problem. It has been documented in California debt collection litigation for decades, and it is one of the primary reasons consumers end up with default judgments they knew nothing about. A collector who cannot find a defendant — or simply wants to cut corners — hires a process server who files a false affidavit of service. The defendant never appears, the collector gets a default judgment, and enforcement begins. The consumer finds out only when their wages are garnished or their bank account is frozen.
Under California law, proper service of process is a prerequisite to the court acquiring jurisdiction over a defendant. A judgment entered against a defendant who was never properly served is void for lack of jurisdiction — not merely voidable, but void. Dill v. Berquist Construction Co., 24 Cal.App.4th 1426 (1994). A void judgment can be challenged at any time, without the six-month deadline that applies to other motions to vacate under CCP § 473(b).
Constructive Notice and Actual Notice — Two Concepts That Both Matter
To understand how sewer service works — and its limits — you have to understand the distinction between constructive notice and actual notice, and how each affects your ability to challenge a defective judgment.
Constructive notice — how courts proceed without knowing you were served
California law does not require that a defendant have actual knowledge of a lawsuit before a court can proceed. It requires only that the plaintiff complete a legally recognized method of service and file proof of that service with the court. Once a valid proof of service is on file, the law treats the defendant as having been notified — regardless of whether they actually received the documents. This is constructive notice: the legal presumption that a person who was properly served is deemed to know about the lawsuit, whether they actually do or not.
This is why sewer service is so damaging. The court does not independently verify that service occurred. It sees a sworn proof of service on file and presumes service was valid. When the defendant does not appear, the court enters a default — not because it knows the defendant was notified, but because the filed proof of service creates the legal presumption that they were. A false proof of service exploits that presumption. The defendant is treated as if they had constructive notice of a lawsuit they never knew existed. The proof of service creates this presumption under Evidence Code § 647, and the defendant bears the burden of overcoming it.
Actual notice — the caveat that can cost you the defense
Here is the critical flip side: even if service was technically defective, a defendant who had actual knowledge of the lawsuit and failed to act in a timely manner may lose the right to challenge. Courts have held that a defendant who knew about the case — through informal notice, collection calls, correspondence from the collector’s attorney, or any other means — and sat on that knowledge without responding may be found to have had sufficient actual notice to bar relief from the judgment.
Defective service is a powerful defense, but it is not a free pass for someone who knew a lawsuit existed and chose to ignore it. If you learned that a collector was suing you — even informally — and did nothing, a court may find that your inaction was unreasonable regardless of whether the proof of service was technically defective. The longer you wait after learning of the judgment, the more likely a court is to find that your delay forfeits the challenge. Act immediately.
How Service of Process Works in California
Before a debt collector can obtain a judgment against you, it must properly serve you with the summons and complaint — the documents that notify you of the lawsuit and give you the opportunity to respond. California law provides several methods of valid service under CCP § 415.10 et seq.:
Personal service — handing the documents directly to the defendant — is the gold standard and is governed by CCP § 415.10. Substituted service — leaving the documents with a competent adult at the defendant’s home or workplace and then mailing a copy — is permitted under CCP § 415.20 after a reasonable attempt at personal service. Service by mail with acknowledgment is available under CCP § 415.30 but requires the defendant to sign and return an acknowledgment form. Publication is a last resort available only when the defendant cannot be located after diligent search, under CCP § 415.50.
After completing service, the process server must file a Proof of Service with the court — a sworn declaration describing exactly how, when, where, and on whom service was made. That document is the record the court relies on when it enters a default judgment. If the proof of service is false, the entire foundation of the judgment collapses.
How to Find the Proof of Service
Step 1: Identify the court and case number
Start with your credit report, the garnishment notice, or the bank levy paperwork — any of these will identify the court that entered the judgment and the case number. The case number is the key to finding everything else.
Step 2: Search the court’s online case portal
Most California Superior Courts have an online case search portal where you can look up a case by number and view the docket — the list of every document filed in the case. Search for your case number and look for a filing called “Proof of Service,” “Return of Service,” or “Affidavit of Service.” In some courts the docket is searchable by the defendant’s name if you do not have the case number.
Step 3: Obtain the document
You can view or download the proof of service from the court’s online portal, or request a copy from the clerk’s office in person. There may be a small per-page fee for certified copies. Get the complete document — not just the first page.
How to Read a Proof of Service — And What to Look For
A California proof of service is a sworn declaration — signed under penalty of perjury — from the person who claims to have served you. It identifies who was served, how they were served, when and where service occurred, and includes a physical description of the person actually handed the documents. Reading each field carefully can reveal defective or fraudulent service.
The proof of service will identify: the name of the party served, the address where service was made, the date and time of service, the manner of service (personal, substituted, or mail), and a physical description of the person served including approximate age, sex, height, weight, hair color, and eye color. Every one of those fields is an opportunity for a defect to appear.
Example
Here is how defective service looks in practice. Suppose the defendant in a debt collection case is Daffy Duck — a short, slight man in his late 30s, around 5’6″ and 145 pounds, with black hair and dark eyes, who rents an apartment at 456 Pond Street in Sacramento.
The proof of service filed with the court, however, tells a completely different story. It describes service on “Foghorn Leghorn” — a heavyset man in his mid-50s, approximately 6’3″ and 260 pounds, with white hair and blue eyes, personally served at 123 Barnyard Lane in Bakersfield at 2:34 PM on March 15, 2024.
Daffy Duck has never lived at 123 Barnyard Lane. He has never been to Bakersfield. He does not know anyone named Foghorn Leghorn. He is five inches shorter and over a hundred pounds lighter than the person described. His hair is black, not white. His eyes are dark, not blue. He is nearly twenty years younger than the person described. He lives in Sacramento, not Bakersfield, and has the lease agreement and utility bills to prove it.
The court, seeing only the proof of service, entered a default judgment against Daffy Duck. The constructive notice presumption kicked in: a sworn proof of service was on file, the defendant did not appear, and the default was entered. The process server either served the wrong person entirely, fabricated the service, or both. The judgment is void. But it will remain on the books and be enforced against Daffy Duck unless he files a motion to set it aside — promptly, once he learns of the judgment, because delay in acting after learning of the case can cost him the right to challenge even a void judgment.
Every field in the proof of service that does not match Daffy Duck is a piece of evidence that the constructive notice presumption was created by a false document, and that he was never actually served.
What to Look for When Reading the Proof of Service
Is the name correct?
The party served should be you — your legal name as it appears on the lawsuit. If the proof of service names a different person, or contains a misspelling so significant it describes someone else, that is a defect. Minor misspellings of your own name are generally not sufficient to void service, but a completely different name goes to the heart of whether service was made on you at all.
Is the address correct?
The address where service was made should be your home or workplace at the time of service. If the proof of service lists an address where you have never lived or worked, that is a significant defect. Cross-reference the address against your own records — utility bills, lease agreements, DMV records — to establish where you were actually living at the time.
Does the physical description match you?
The process server must describe the person actually served. Compare the description in the proof of service against your own appearance at the time — height, weight, age, hair color, eye color. A significant mismatch is evidence that the process server did not serve you. The more fields that do not match, the stronger the evidence of defective service.
Was substituted service done correctly?
If the proof of service describes substituted service — leaving documents with another person at your home or workplace — check whether it complies with CCP § 415.20. Substituted service requires a prior attempt at personal service, service on a competent adult at a proper location, and a follow-up mailing to the same address. If any of these steps are missing or improperly described, service may be defective even if you did live at that address.
Was the mailing completed for substituted service?
Substituted service is only complete when both the in-person delivery and the follow-up mailing are completed. Check whether the proof of service includes a declaration of mailing — a separate section confirming that a copy was mailed to you at the same address. If the mailing declaration is missing, substituted service was not completed.
What to Do If You Find Defective Service — The Motion to Set Aside
If the proof of service shows that you were not properly served — wrong name, wrong address, a physical description that does not match you, or procedural defects in substituted service — you must file a Motion to Set Aside the Default and Default Judgment with the court that entered it. This is the formal legal mechanism for undoing a judgment entered without proper service.
A judgment entered without proper service is void for lack of jurisdiction and can be challenged at any time under CCP § 473(d). Unlike the six-month deadline for discretionary relief under CCP § 473(b), there is no statutory time limit for challenging a void judgment based on lack of jurisdiction. But act immediately once you learn of the judgment — courts will examine whether you had actual knowledge of the case at any earlier point and whether your delay in bringing the motion was unreasonable. Actual knowledge of the lawsuit, even without valid service, can undermine a challenge if you sat on it.
The motion must be supported by a declaration from you describing the defect in detail — where you actually lived at the time of alleged service, what you actually look like, why the address or description in the proof of service is wrong — along with documentary evidence supporting your account. Pay stubs, lease agreements, utility bills, DMV records, and photographs from the relevant time period can all help establish that the person described in the proof of service was not you.
Once the motion is filed, the court will schedule a hearing. The collector will have an opportunity to oppose the motion and defend the proof of service. If the court grants the motion, the default judgment is set aside and the case returns to the stage before the default was entered — meaning the collector must properly serve you and the litigation restarts.
Frequently Asked Questions
How do I know if there is a judgment against me?
Check your credit report — judgments are typically reported as public records. You can also search the Superior Court online case portal for the county where you lived or live now, searching by your name. Third-party court record search tools like UniCourt and Trellis aggregate California court data and allow you to search your name across multiple counties, often for free — useful if you are not sure which county a case may have been filed in. If a creditor has begun enforcement — garnishing your wages or levying your bank account — the paperwork from your employer or bank will identify the court and case number.
What if the process server served someone at my old address?
If you had already moved by the time service was attempted, service at your old address is generally defective — unless the collector had no way to know you had moved and made a diligent effort to locate your current address. Document when you moved with lease agreements, utility transfer records, or USPS change of address confirmation. The timing of your move relative to the service date is critical.
Is it sewer service if someone at my address accepted the documents but never gave them to me?
Not necessarily. Under CCP § 415.20, substituted service on a competent adult at your residence is valid even if that person failed to give you the documents. The responsibility for ensuring you receive notice rests with the process server completing the service correctly — not with the third party passing it along. If substituted service was technically proper, the judgment may stand even if you never actually saw the papers.
What if I find out about the judgment years later?
A judgment based on defective service is void and can be challenged under CCP § 473(d) without a fixed statutory deadline. But courts will scrutinize whether you had actual knowledge of the case at any earlier point and sat on it. If you genuinely had no knowledge until recently, document that clearly. If you had any earlier awareness of the lawsuit — collection calls, letters from the attorney, anything — expect that to be raised against you and be prepared to address it.
Does the collector have to re-serve me after the judgment is vacated?
No. When a defendant files a Motion to Set Aside, they are appearing before the court — and that appearance is itself proof of actual notice. The defendant who shows up to challenge the judgment has demonstrated they know the case exists. Re-service is not required. What the court will typically require instead is a response to the underlying complaint — an Answer, a demurrer, or a motion to compel arbitration. Courts routinely require the defendant to attach their proposed response to the motion to set aside, or will order a specific window of time — often 10 to 30 days — within which the defendant must file a response after the judgment is vacated. The litigation then proceeds from that point forward. The statute of limitations does not provide a second escape hatch at this stage — the defendant is in the case.
The Bottom Line
A default judgment entered without proper service is built on a false foundation — and California law recognizes that. The constructive notice presumption that makes the court system function is also the mechanism that sewer service exploits. But that presumption has a counterpart: actual knowledge of the lawsuit, even without valid service, can forfeit your right to challenge if you failed to act on it. If there is a judgment against you that you knew nothing about, do not assume it is valid — but do not wait. Find the proof of service, read every field carefully, compare the details against your own records, and file your motion to set aside immediately. A wrong name, a wrong address, or a physical description that does not match you is powerful evidence — but only if you use it without delay.
If you have been served with a debt collection lawsuit in California, learn how to respond and protect yourself — step by step, in plain English.
This article is for educational purposes only and does not constitute legal advice. Service of process requirements and the procedures for challenging a void judgment are technical and fact-specific. If you believe you were never properly served, consult a licensed California attorney as soon as possible.