What should a landlord do when a vendor invoice is higher than the quote?

Start with a line-by-line comparison

Put the quote and the invoice side by side. Mark each extra: more hours, more parts, a trip charge, a disposal fee, taxes. Then sort them into three groups: things the quote covered that were billed again, things that were a genuine change, and things you cannot explain.

Example a made-up quote for repainting a unit says $1,100 for labor and paint. The invoice is $1,480. The extra $380 is $160 for repairing wall damage found under old wallpaper, $120 for a second coat of primer, and $100 labeled "supplies." The first two are plausible changes that should have been agreed first. The third repeats a cost the quote already covered.

This sorting gives you something specific to say, and it keeps the conversation about numbers, not feelings.

What to ask the vendor, in writing

Use email or text so there is a record. Keep it calm and short.

1. Thank them for the work and say you are reviewing the invoice.
2. Quote the original estimate and its date.
3. List each extra charge and ask what it was for and when you approved it.
4. State what you will pay now (the quoted amount plus any change you agree to) and when.
5. Ask for a corrected invoice if any item is removed.

Many disputes end at this step because the vendor sees you are paying attention. Others turn out to be honest mistakes.

What your rights depend on

Your quote may be a binding fixed price, or only an estimate that can rise. The wording matters. A written fixed-price agreement is stronger than an estimate, and many states require home improvement contracts above a certain size to be in writing with a stated price and a process for changes. Check your state's contractor rules and your contract before you decide how firm to be.

• If the contract says changes need written approval, an unapproved change is a weaker claim for the vendor.
• If the vendor found a hidden problem that had to be fixed to finish, a reasonable extra may be fair even without a signed change.
• If the work is defective, that is a separate issue, and you should say so in writing before paying.

If the disagreement is large, consider a local landlord association, small claims court information, or a lawyer. Before any of that, pay the part you owe so the dispute stays small.

How to stop it happening again

• Get quotes in writing, with the scope, materials, labor and total.
• Write "any change in price needs my written approval first" on the work order.
• For unknowns, ask for a "not to exceed" amount.
• Take before and after photos so you can tell what was done.
• Keep a short list of vendors who have been fair and reuse them.

For tax records, keep the original quote, the final invoice and any message that approved a change. Repairs and improvements are treated differently, as explained in IRS Publication 527, so an invoice that describes the work clearly helps your tax preparer.

How DoorKeeping handles it

Put the quote on the work order, send the job to the vendor by link, and ask them to add any change in the same place before doing it. When the bill arrives, DoorKeeping reads it and you can ask Claude or ChatGPT to compare it with the work order. Paying anything waits for your one-tap approval, so a disputed invoice does not get paid by accident.

Sources

1. IRS Publication 527: Residential Rental Property (repairs and improvements), read Oct 30, 2026

Questions

Do I have to pay more than the quote?

It depends on the contract and your state. A fixed-price written quote is stronger than an estimate, and changes usually need approval.

Should I pay the quoted amount while disputing the rest?

Often yes. Paying the undisputed part on time keeps the dispute small and the vendor cooperative.

What is a not-to-exceed amount?

It is a ceiling the vendor agrees not to pass without your written approval.

When should I involve a lawyer?

When the amount is large, the vendor threatens a lien or a lawsuit, or the work is defective. Check your state's rules first.