A single bad job — a retaining wall failure, a dead plant claim, a drainage dispute — can cost more than a contractor makes in a quarter. Here's how to build the protection before you need it.
The retaining wall shifted six months after you built it. The client is furious. They're claiming $28,000 in damages — the wall, the garden behind it, the irrigation that has to be redone. Your truck is at another site. Your phone is full of their calls. And you're wondering if the $9,500 job you got paid for is about to cost you four times that to make right.
This happens to contractors who do good work every day. Not because they're negligent. Because disputes happen, drainage is unpredictable, soils shift, and clients' expectations don't always match what was written on the proposal. The difference between a contractor who survives this and one who doesn't is almost entirely in how they set up the job before the first shovel goes in.
The Written Contract Is Not Optional
A verbal agreement, a text message, and a signed estimate are not contracts. A contract is a document that both parties sign, specifying scope, materials, timeline, payment terms, warranty limitations, and dispute resolution. If you don't have one, every dispute defaults to "he said, she said" — and that's an expensive place to be.
Your contract needs to cover at minimum:
Scope of work: Specific enough that there's no reasonable argument about what was included. "Install approximately 180 linear feet of boulder retaining wall, maximum height 4 feet, using 100–200 lb limestone boulders" is a scope. "Build a rock wall" is not.
What's excluded: This matters as much as what's included. If you're not responsible for utility locates, not responsible for addressing pre-existing drainage problems, and not responsible for soil conditions below 12 inches, that has to be in the contract.
Payment terms: Deposit due at signing, progress payments by milestone, final payment due at completion. Specify what happens if payment is late. Some contractors charge 1.5%/month on overdue invoices — put it in the contract and you can enforce it.
Warranty scope and limitations: A 1-year warranty on workmanship is standard for most landscape construction. Be specific about what isn't covered: plant mortality due to weather or irrigation problems, natural settling, soil movement, damage from third parties. "We warranty our workmanship" with no limitation means you're liable for everything, forever, in a client's interpretation.
Change order process: Any scope change requires a written change order signed by the client before work proceeds. No exceptions. Verbal "yes, go ahead" change orders that go un-invoiced are how contractors do an extra $3,000 of work and get paid for zero of it — and then get blamed for the outcome.
Document the Job Condition Before You Start
Take photos of everything before your crew touches the site. Existing drainage patterns, any pre-existing damage to structures, the grade conditions, any areas that look problematic. Do a walkthrough video if the job is large. Put the date in the file name so it's timestamped.
This documentation protects you when a client claims you caused damage to something that was already broken. Without before photos, you can't prove the crack in the foundation wall was there when you arrived. With photos, you can. That evidence has saved contractors thousands of dollars in disputes where the client blamed them for conditions that existed before the job started.
Milestone Sign-Offs Keep Disputes Small
The worst disputes happen at the end of a job. The client has been watching for weeks, has opinions about things you did two weeks ago, and by the time the invoice lands, they've built a list. The whole project feels wrong to them.
Milestone sign-offs prevent this from compounding. At meaningful points in the project — site prep complete, hardscape base layer done, planting complete — get a quick written approval from the client. An email or text that says "We completed the grading and drainage layer today. Does everything look good before we proceed to the paving?" is a sign-off. If they respond "yes, looks great," that's on record.
When a client tries to dispute the grading at the end of the job, you have documentation that they approved it three weeks ago. That doesn't eliminate all disputes, but it limits them to the work done after the last sign-off, which is far more manageable.
"The paperwork you skip when everything is going well is the paperwork you desperately need when it isn't. There is no retroactive way to document a job properly."
Know When to Stop the Job
Some jobs turn bad before they're done. You discover a soil condition that changes the whole project cost. The client starts adding scope without authorization. They stop responding to calls during active work. These are signals.
Your contract should give you the right to stop work if payments are not made on schedule. Use it. A contractor who continues working on an unpaid job hoping to finish and then collect often ends up finishing and not collecting. Stop work, send a formal written notice, and document everything from that point forward.
If the job has gone sideways and you sense a dispute coming, put everything in writing immediately. Every conversation, every decision, every instruction from the client. "Per our conversation today, you confirmed that you want us to remove the existing boulder wall before proceeding." That email takes 30 seconds to write. In a dispute, it's worth thousands.
Insurance Is the Last Line, Not the First
General liability insurance covers property damage and bodily injury claims. Workers' comp covers your crew. Neither covers poor workmanship claims — those are contractual disputes. Your contract and your documentation are what protect you from the most common landscape disputes. Insurance handles the catastrophic scenarios: a skid steer breaks a waterline, a tree removal damages a neighbor's vehicle, a crew member is injured on site.
At minimum, carry $1M per occurrence in general liability and statutory workers' comp in your state. For larger commercial projects, you may need a certificate of insurance naming the property owner as additional insured. Know what your policy covers before the job starts, not after the claim is filed.
Keep every job documented from estimate to invoice
Ledge gives you a paper trail for every job: signed proposals, change orders, milestone notes, and invoices — all in one place. If a dispute comes up, you're ready.
FAQ
Do I need a lawyer to write a landscape contract?
Not necessarily, but having an attorney review your standard contract once is worth the $200–$500 cost. Many contractor associations — including NALP (National Association of Landscape Professionals) — provide member-ready contract templates. The key is that the contract needs to be specific to your scope and your state's laws around contractor liability and warranty. A generic template from Google is better than nothing, but a reviewed document is better than a generic template.
What do I do if a client refuses to sign a contract?
Don't do the job. A client who won't sign a written agreement is telling you they want flexibility to dispute the terms later. That flexibility is at your expense. You can lose the job or you can sign up for a dispute — those are the realistic options when a client refuses documentation. The rare exception is very small jobs ($500 or less) where the risk is low enough to proceed on a paid-upfront basis.
What happens if a client disputes the work after I've been paid?
With a signed contract and documented milestone approvals, you're in a defensible position. Respond in writing, not by phone. Acknowledge their concern without admitting fault. Reference the contract scope, the change order record, and the milestone sign-offs. If the dispute escalates, a contractor's attorney can often resolve it with a letter before it reaches small claims court. Most clients who have a signed contract and documented approvals shown to them will accept a reasonable settlement rather than going to court.
How long should my plant warranty be?
90 days to 1 year is standard for most residential planting. The warranty should clearly state it covers replacement of plant material that dies due to installation workmanship — not drought, disease, pest damage, improper irrigation by the homeowner, or weather events. Include a clause that the warranty is void if the client fails to water per your specified schedule, and document the watering instructions in writing at project completion. Without these limitations, a drought year turns every plant warranty into an unlimited replacement obligation.
Should I require a deposit, and how much?
Yes. A 30–50% deposit at contract signing is standard for project work. It covers your material costs before the job starts and provides serious-client signal — people who aren't committed often won't pay a deposit. For jobs over $10,000, a milestone payment structure (deposit at signing, 30–40% at midpoint, balance on completion) protects both parties. Never do a large job on net-30 payment with no deposit — you're financing the client's project with your own cash.
Edgar Galindo
Co-founder, Ledge
Edgar built Ledge while running a landscape construction company in Central Texas. He writes about estimating, job costing, and building a business that runs without you on every site.