Get a Free Quote
Home › Guides › Hiring a Contractor

Who’s Actually Doing Your Remodel? California’s New Subcontractor Checkbox

California · Updated October 2026
Short answer: Since January 1, 2026, every California home improvement contract has to say yes or no to one question: will a subcontractor be used on this job? If the answer is yes, you can ask the contractor for each subcontractor’s name, contact information, license number and license classification, and the contractor has to give it to you. The contractor who signs your contract is still responsible for finishing the job the way the contract says.

What changed

A new state law, SB 517, added a checkbox to the home improvement contract that California already requires for most jobs over $500. The box asks whether a subcontractor will do part of the work. It is a plain yes or no.

An earlier version of the bill would have made contractors name any subcontractor doing more than half the job up front. That part was dropped. What passed is the checkbox, plus your right to get the subcontractor details when you ask.

Why it matters for a kitchen, bathroom or roof

Most remodels use subcontractors somewhere. On a kitchen it is often the countertop fabricator, the electrician or the plumber. On a bathroom it can be the tile setter or the glass company. On a roof, some companies sell the job and a separate crew installs it.

That is normal and often good. A specialist sub can do better work than a generalist. The problem is not knowing. If the person who measured your kitchen is not the company that installs it, you want to know before you sign, not when a stranger shows up with a tile saw.

Four questions to ask before you sign

  1. Is the subcontractor box checked yes or no? If it says no, ask who exactly will be on site.
  2. If yes, who are they? Ask for each one’s name, license number and trade. You are entitled to it.
  3. Are they licensed for that trade? Look up every license number on the CSLB license search at cslb.ca.gov. Check that it is active and that the classification fits the work, for example C-10 for electrical or C-36 for plumbing.
  4. Who do I call when something goes wrong? The answer should be the contractor who signed your contract. The law keeps them responsible for completing the job as written.

Know the scope before anyone comes out

The checkbox tells you who will do the work. It does not tell you whether the price is fair for that work. Before the first sales visit, price your project on GetProEstimate: kitchen remodel costs in San Diego, bathroom remodel costs or roof replacement costs. Then compare every bid to the same scope. We set up a visit with one licensed local contractor, who quotes to the same scope you saw.

Frequently Asked Questions

When did the subcontractor checkbox start?
January 1, 2026, for home improvement contracts signed in California.
Does the contract have to list the subcontractor’s name?
Not on the form itself. The contract has the yes or no box. If you ask, the contractor has to give you each subcontractor’s name, contact information, license number and classification.
Is it a bad sign if my contractor uses subcontractors?
No. Most remodels use some. What matters is that every company on your job is licensed for its trade and that you know who they are.
Who is responsible if a subcontractor’s work is wrong?
The contractor who signed your contract is responsible for completing the project as the contract, plans and specifications say. The state can still discipline the subcontractor separately.
How do I check a license?
Use the free license search on the Contractors State License Board site, cslb.ca.gov, by license number or business name.

Sources: Business and Professions Code §7159 as amended by SB 517 (Stats. 2025, Ch. 585), effective January 1, 2026 · Contractors State License Board, “New Laws Affecting Contractors Starting in 2026”

Get a free quote for your project
One vetted San Diego pro follows up with a real line-item estimate. No spam.