Change orders: how to avoid surprise costs on a remodel

Quick answer

A change order is a written amendment to your contract for work that's added, removed or changed after you sign. In California it should describe the change, the amount added to or subtracted from the price and its effect on the payment schedule or completion date, and be signed before the work starts.

Who to call: Coachella Valley Remodeling connects you with our licensed partner contractor, who visits and gives you a written price. Free to you. Get a free quote or call (760) 766-2218.

Updated November 6, 2026 · Typical published ranges, not a quote.

In the complaints we read, one homeowner's final bill came in about a third over the contract, roughly $8,000 more, with no warning. A handyman's $300 quote became a $1,495 bill. A verbal $750 ceiling repair turned into nearly $2,000 at hourly rates. Across kitchen jobs where allowances and changes weren't controlled, overruns of 10% to 35% were common.

None of those required a dishonest contractor. They required a contract with gaps and changes agreed out loud. Both are fixable.

What California law says about change orders

California's home improvement contract law, Business and Professions Code 7159, treats change orders seriously. For contracts over $500:

• A change-order form has to be part of the contract, and a change becomes part of the contract only if it's in writing and signed by both of you before the work it covers begins.
• The change order must describe the scope of the extra work or change, the cost added to or subtracted from the contract, and the effect on the payment schedule or completion date.
• You can't require extra work without written authorization, and a change order that doesn't identify those three things in writing beforehand isn't enforceable against you.

There's one catch worth knowing. The law also says a contractor who skips these steps can still try to recover fair payment for work actually done, under rules meant to prevent “unjust enrichment.” In other words, “I never signed it” isn't a guaranteed exit. The real protection is making sure nothing gets built until the change is written, priced and signed.

Where surprise costs come from

The complaints point to five sources. Most are visible in the contract before you sign.

A change order that protects both sides

A good change order is short. It fits on one page and says:

1. The number and date (CO #3, March 4)
2. What changes, in plain words: “Add a 20-amp circuit and two outlets on the island”
3. Price: the amount added or subtracted, with labor and materials shown if it's large
4. Schedule effect: “Adds one day; no change to completion date,” or “Adds five days”
5. Payment effect: which progress payment it's added to
6. Both signatures, before the work starts

Keep them numbered and in one place, with a running total. When the job ends, the final invoice should equal the contract price plus or minus the signed change orders. Nothing else.

Hidden conditions: the desert edition

Some surprises are genuinely hidden. In the Coachella Valley, a few come up often enough to plan for:

• Termites. UC IPM calls desert subterranean termites the most destructive subterranean species in the Sonoran Desert of southeastern California (Pest Note 7415). Damage under a sink base or behind a wall turns up during tear-out.
• Hard-water damage. Corroded valves and supply lines in older homes, especially where water hardness is high.
• Slab plumbing and older electrical in mid-century homes, and panels too small for an induction range or added circuits.
• What the HOA requires once it sees the plans: a different vent location or a quieter condenser.

The fix is the same for all of them. Before signing, ask: “If you find hidden damage, how will it be priced?” A good answer is a unit price (per linear foot of drain, per square foot of subfloor), a fixed fee to investigate, or time and materials with a cap. Then ask for photos before any added work starts, and a change order before any money is committed.

Allowances: the quiet change order

An allowance overage is a change order that was baked in at signing. If the countertop allowance is $2,000 and the slab you love is $4,500, you'll owe $2,500 more. That's not a trick, but it is how a reasonable-looking bid turns into a painful final bill.

To keep allowances honest:

• Pick as much as you can before you sign: cabinet line, slab, tile, fixtures.
• Ask whether each allowance covers materials only or installation too.
• Ask whether overages carry a markup, and get the percentage in writing.
• Ask for credits in writing when you come in under.

Our guide on how to read a remodel estimate shows how to compare allowances across bids.

A simple routine for the whole job

• Before signing: realistic allowances, an exclusions list you've read, and a written rule for hidden conditions.
• Keep a reserve. Given the overruns in the complaints we read, holding back 10% or more of the budget for genuine surprises is sensible. Treat it as a reserve, not a spending target.
• One channel for changes. Agree that changes go through one person at the contractor and arrive as a written change order, not a conversation with whoever's on site.
• Sign before work. If a crew member offers to “just do it,” the answer is “send me the change order first.”
• Track the running total. Contract price, plus or minus each signed change order. Check it against every progress payment.
• Check the final invoice against that running total before the last payment.

A worked example

Here's how a well-run change looks on a hypothetical $60,000 kitchen. The figures are illustrative, not quotes.

During demolition, the crew finds that the drain under the sink is corroded cast iron and the subfloor beneath it is soft. Work on that section stops. The contractor sends photos the same afternoon and a written change order the next morning:

• CO #1: replace 6 feet of drain line and 12 square feet of subfloor under the sink base, at the unit prices in the contract. Adds $1,450. Adds one day; no change to the completion date. Added to the cabinet-installation payment.

You sign it that day. A week later, you decide you want two more outlets on the island:

• CO #2: add a 20-amp circuit and two island outlets. Adds $680. No change to the schedule. Added to the finish-work payment.

And when you pick a less expensive faucet than the allowance assumed:

• CO #3: faucet allowance $600, selected model $420. Credit of $180.

The running total is now $60,000 + $1,450 + $680 − $180 = $61,950. That's the number the final invoice should match. Nobody had to remember a conversation, and nobody was surprised.

Compare that with the version that shows up in complaints: a crew member says “we'll need to fix that drain,” you say “okay,” and the cost first appears on the final invoice, along with a few other “while we were there” items. Same work, very different ending.

When you're not in town

Many valley owners remodel in summer while they're away, which makes change orders harder to manage. Agree on how changes reach you (email with photos, a shared project thread), how quickly you'll respond, and what the contractor does while waiting. If a decision is needed to keep the job moving, it's better to say in advance who can approve what, and up to what dollar amount, than to come back to a surprise.

Small jobs and handyman work

On small jobs, the surprise usually comes from hourly billing. In the handyman complaints we read, billing was the top problem, mentioned in 29%, with upcharges and change orders in another 13%. The protections scale down:

• A written price or a not-to-exceed amount before work starts
• Trip fees, minimums and materials markup disclosed up front
• Any extra work quoted and approved before it's done; a text with the price is fine for a small job
• Photos of the problem at booking, so the quote can be firm

What our partner contractor agrees to

Our partner contractor agrees in writing that every change is written, priced and signed by you before the work happens, and that an unsigned change isn't billed. If there's a dispute about a change, we collect both sides' photos, the contract and the change orders and propose a resolution.

• One person who answers

  “Nobody calls back, and everyone blames someone else.” · 34% of kitchen complaints

  Our standard: One local contractor is responsible for the whole job, and one person at our office answers if they don't.

  Every project gets a named contact at the contractor and at our office, plus a shared project thread. Our partner agreement requires replies within one business day and written responsibility for subcontractors. We check in at the estimate, start, midpoint, completion and 30 days.

• Walkthrough before final payment

  “It looks worse than what we tore out.” · 32% of kitchen complaints

  Our standard: You don't make the final payment until you've walked the job with the contractor and the punch list is done.

  We check our partner contractor's license classification for the trade before every introduction. At the end, you and the contractor walk the job with a written punch list, and the last payment waits until it's finished. Workmanship complaints go on the contractor's record with us.

• Kitchen stays usable until materials arrive

  “Five months washing dishes in the bathtub.” · 29% of kitchen complaints

  Our standard: Your old kitchen stays in place until the new cabinets and stone are on site and checked, unless you choose otherwise.

  Your written scope includes an estimated completion date and the order of trades. Our partner agreement requires that demo waits until the cabinets, slab and appliances have been delivered and inspected. You get photo updates every work day, and payments follow milestones.

• Warranty in writing

  “The lifetime warranty disappeared when the company did.” · 23% of kitchen complaints

  Our standard: Our partner agreement requires at least a one-year workmanship warranty in writing, and we keep a copy.

  Our partner agreement requires a written workmanship warranty of at least one year, separate from the manufacturer's, with claims acknowledged within two business days and a visit scheduled within ten. We check the contractor's CSLB record and bond and keep your documents on file.

• You get exactly what you approved

  “They sold me solid wood and delivered particleboard.” · 22% of kitchen complaints

  Our standard: Your contract names the exact cabinet construction, finish and stone, so you get what you approved.

  The itemized scope lists the cabinet line, box material, door construction, finish, hardware and slab. Our partner agreement requires deliveries to be inspected and photographed before anything is installed. For natural stone, you see and approve the actual slab.

• Approve drawings before anything is cut

  “The island came out four inches too narrow.” · 15% of kitchen complaints

  Our standard: Nothing is ordered or cut until you've approved the drawings and the seam layout.

  Our partner agreement requires on-site measurements, your appliance spec sheets, cabinet drawings and a countertop layout showing seams, overhangs and sink and cooktop centerlines. You sign off before anything is ordered or cut.

• Small deposit, pay as you go

  “We paid in full, and then they disappeared.” · 13% of kitchen complaints

  Our standard: Our partner contractor never asks for more than 10% or $1,000 down, as California law requires. You pay as work is completed.

  California caps home-improvement down payments at 10% or $1,000, whichever is less, and payments can't run ahead of completed work. Our partner agreement repeats that rule, and we review the payment schedule before you sign. We verify the license and bond at cslb.ca.gov first.

• They show up, or they call

  “They cancelled the install the morning of, again.” · 12% of kitchen complaints

  Our standard: Our partner agreement requires every appointment to be confirmed the day before, and we track every missed one.

  Our partner agreement requires day-before confirmations and at least 24 hours' notice of changes except in real emergencies. We log no-shows, and repeated no-shows end the partnership.

From about 1,600 public complaints (BBB, Yelp, CSLB) about kitchen and cabinet work that we read in 2026. How we counted

We connect you, free, with a licensed contractor, and you sign with and pay the contractor you choose. See how it works.

Common questions

What is a change order?

A written amendment to your contract for work that's added, removed or changed after you sign. In California, a change order on a home improvement contract should describe the change, the amount added to or subtracted from the price, and its effect on the payment schedule or completion date, and be signed before the work starts.

Do I have to pay for a change I never signed?

California law says a change order isn't enforceable against you unless it's in writing and identifies the scope, the price change and the effect on payments or the schedule before the work begins. But the contractor can still seek fair payment for work actually done, so the safest course is to sign or decline every change before it happens.

Can a contractor charge more if they find hidden damage?

Often, yes, if the contract excludes hidden conditions. That's why it matters to agree in advance how they'll be priced: a unit price, a fixed fee to investigate, or time and materials with a cap. Ask for photos before anything is opened further.

How do I keep a remodel on budget?

Make your choices before you sign so there are few allowances, set realistic allowances for the rest, agree how hidden conditions will be priced, keep a reserve, and approve every change in writing with its price and schedule effect.

Is a text message a valid change order?

For a home improvement contract, the law expects a written, signed change order. A text can document a small change and your agreement, but for anything with real money attached, ask for a proper change order form. Our partner contractor agrees to written, signed change orders for every change.

Last reviewed November 6, 2026. Prices and rules change; confirm details with your contractor and your city or county building department.