Key Takeaways
A Colorado service contract that leaves the price to one party's "sole determination," with no estimate, rate schedule, or objective benchmark, generally does not create an enforceable price term. When the price term fails, Colorado courts apply the reasonable value rule: the provider is entitled only to what the work is worth, proven through admissible evidence. The plaintiff carries that burden, and if it cannot prove the reasonable value exceeds what has already been paid, the breach of contract claim fails, and with it, any contractual claim for interest and attorney fees.
A $181,000 Invoice That Could Not Be Proven
What happens when a restoration company, contractor, or other service provider hands a customer a short "authorization" form, performs the work, and then bills whatever it decides the job was worth? Under Colorado law, the answer is clear but often misunderstood: a contract that omits any agreed price is a contract to pay the reasonable value of the services, and that value must be proven at trial with admissible evidence.
In a recent trial before the Douglas County District Court, Rincon North LLC d/b/a Best Option Restoration of Parker v. Pine Hotel LLC d/b/a Super 8 Parker Hotel, Case No. 2025CV30594, Hollington Law Firm secured a complete defense verdict on exactly this issue. The plaintiff sought approximately $145,000 in alleged unpaid charges on a $181,000 invoice. The Court entered judgment in favor of our clients, finding that the evidence did not establish that the reasonable value of the plaintiff's services exceeded the $66,407.52 the insurer had already paid. The plaintiff took nothing further, and its claims for contractual interest and attorney fees fell with the principal claim.
This post walks through the legal framework behind that result and why it matters for Colorado businesses, property owners, and service providers alike.
The Contract at Issue: An "Authorization" Without a Price
The dispute arose from emergency water mitigation services performed at a hotel following a pipe burst in January 2024. At the outset of the emergency response, the restoration company presented a two-page Service Authorization Contract. The document authorized the work and addressed payment responsibility, late fees, and collection costs. It made the customer personally responsible for amounts not covered by insurance and required payment within ten days of completion.
What the contract did not contain is what drove the case: there was no estimate, no rate schedule, no unit pricing, no hourly rate, no fair market value benchmark, and no reference to any external pricing standard such as Xactimate. Instead, the agreement stated that the "Work cost, job completion cost, and invoice" would be "determined solely by [the restoration company] and is not negotiable."
After completing the work, the company issued an invoice of $181,000.00 for water extraction and remediation, plus late fees. The customer's insurer, after independent review and consultation with a retained expert, paid $66,407.52. The restoration company sued for the balance, plus contractual interest and attorney fees.
The Central Legal Question: Is "We Decide the Price" Enforceable?
The case turned on a single question of Colorado contract law: does a provision that allows one party to unilaterally fix the price after performance create an enforceable price term?
Under Colorado law, the answer is no — at least not in a way that binds the other party to that number.
Mutual Assent Requires a Meeting of the Minds on Material Terms
To be enforceable, a contract requires mutual assent to an exchange between competent parties for legal consideration. The Colorado Supreme Court reaffirmed this principle in French v. Centura Health Corp., 509 P.3d 443, 449 (Colo. 2022), holding that where parties ascribe different meanings to a material term, there has been no meeting of the minds and no valid contract as to that term. Price is quintessentially a material term. When it is omitted entirely, or left to one side's unfettered discretion, a court cannot determine whether the agreement has been breached, and the term itself is not enforceable. See Jorgensen v. Colorado Rural Properties, LLC, 226 P.3d 1255, 1258 (Colo. App. 2010).
Colorado Does Recognize "Objective" Price Mechanisms
A contract need not name a fixed dollar figure to be enforceable. Colorado courts have long held that a price term is sufficiently definite when the agreement supplies an objective method for determining value. In Schreck v. T & C Sanderson Farms, Inc., 37 P.3d 510, 514 (Colo. App. 2001), a purchase option providing for sale "at appraised value" was held sufficiently definite, because a neutral mechanism — independent appraisal — could supply the missing number.
The common thread is objectivity. Appraisal, fair market value, reasonable value, third-party rate schedules, and incorporated pricing guidelines all permit a court or neutral decisionmaker to fix a price using standards external to either party's self-interest. "We will decide later, and our decision is not negotiable" does not.
The Reasonable Value Rule: Colorado's Default Standard
When a service contract lacks an enforceable price term, Colorado does not throw the agreement out. Instead, the court supplies the missing term by looking to the reasonable value of the services actually rendered. This rule has been settled law in Colorado for nearly a century. In Belisomo v. Ceresa, 251 P. 531, 532 (Colo. 1926), the Colorado Supreme Court held that "a contract for work which names no price is a contract to pay what the work is worth." Nearly forty years later, in Allred v. Lininger, 398 P.2d 967, 969 (Colo. 1965), the Court reaffirmed that "under general principles of contract, the reasonable value rule is universally applied where no contract price can be determined." Colorado's pattern jury instructions recognize the same principle, allowing recovery under quantum meruit or implied agreement where contract terms do not govern compensation. See CJI-Civ. 30:58.
The practical effect is that courts do not rubber-stamp a service provider's invoice. The burden of proving reasonable value falls on the party seeking to recover it, and that proof must come through admissible evidence — typically qualified expert testimony, industry rate data, third-party estimating software, or competitive bids.
Why Unilateral "Sole Determination" Provisions Fail
Beyond the absence of an objective standard, provisions that make one party the sole judge of what the other party owes raise additional enforceability concerns under Colorado law.
Mutuality of Consideration
The Colorado Jury Instructions recognize that where one party to an executory contract retains "an unlimited right to determine the nature and extent of those obligations," the contract may lack mutuality of consideration. See CJI-Civ. 30:7, Note 9 (citing Hauser v. Rose Health Care Systems, 857 P.2d 524 (Colo. App. 1993)). A bargain in which one side decides, after the fact, what the other side must pay — with no reference to any objective standard — is not much of a bargain at all.
Unconscionability
Colorado also recognizes unconscionability as an equitable limit on contractual enforcement. Davis v. M.L.G. Corp., 712 P.2d 985 (Colo. 1986). Courts examining unconscionability consider both the circumstances surrounding formation and the substance of the challenged provision, including whether there was a meaningful opportunity to negotiate and whether the term is unreasonably one-sided.
Several factors often line up against service providers who rely on short "authorization" forms. The contract is typically presented at the outset of an emergency, when the property owner has little time and no leverage. The pricing language is frequently designated as non-negotiable by its own terms. And no price methodology, estimate, or rate schedule is disclosed before or at the time of signing. Those facts, taken together, are the hallmarks of a provision that a Colorado court is unlikely to enforce as a binding price term.
Quantum Meruit and the Plaintiff's Burden
When a written contract's pricing provision fails, a service provider is not left empty-handed. Colorado law permits recovery under the equitable theory of quantum meruit, also called implied-in-law or implied-in-fact contract. The measure of recovery, however, is the same: the reasonable value of services rendered, not the number on the invoice.
In practice, a restoration company, contractor, or other service provider who wants to recover more than what has already been paid must produce evidence showing that the market value of the work actually exceeded those payments. Vague testimony from a company owner that the charges were "fair" or "standard" is rarely enough. Courts look for industry-standard estimating output tied to line items actually performed, testimony from a qualified third-party estimator, evidence of comparable rates charged in the same market for the same work, and documentation of actual labor hours, equipment use, and material costs. When that evidence is missing — or when the defendant presents credible evidence, such as an insurer's independent expert review, that the amounts already paid reflect fair market value — the plaintiff cannot meet its burden.
That is precisely what happened in the Douglas County trial. The Court found that the evidence did not show the reasonable value of the services exceeded the $66,407.52 already paid, and entered judgment in the defendant's favor.
The Ripple Effect: Attorney Fees and Contractual Interest
The reasonable value finding has consequences well beyond the principal amount in dispute. Many service contracts contain fee-shifting provisions that entitle the provider to recover attorney fees and contractual interest if it must sue to collect. Under Colorado law, however, attorney fees are not recoverable absent a statute or an enforceable agreement. Bunnett v. Smallwood, 793 P.2d 157 (Colo. 1990). And where a party does not prevail on an enforceable contract theory as to a material term, contractual fee-shifting provisions do not apply. Jorgensen, 226 P.3d at 1263.
When a court determines that compensation is governed by the reasonable value rule rather than a contractual price term, the plaintiff's fee and interest claims generally fall with the principal claim. That significantly changes the economics of these cases and is one reason early, focused litigation over the enforceability of the price term is so important.
Practical Takeaways
For Colorado property owners and businesses facing a surprise invoice, the lesson is to read the contract carefully before paying. If the "price" is nothing more than "we decide later, and it is not negotiable," a meaningful defense likely exists. The service provider will have to prove, through admissible evidence, that the reasonable value of the work exceeds whatever has already been paid. Insurance payments made after independent expert review can be powerful evidence of reasonable value on the defense side.
For service providers who rely on post-performance billing, unilateral "sole determination" pricing provisions invite precisely the kind of challenge that can defeat contract-based recovery and fee-shifting. Building objectivity into the agreement — disclosed rate schedules, pre-work estimates, industry estimating software, or reference to fair market value — protects both the customer and the provider. An enforceable pricing mechanism is a better business tool than an invoice that cannot be proven up at trial.
For litigators, when a service contract lacks a definite price term, the case turns less on the written agreement and more on the evidence of market value. Early identification of the enforceability question, targeted motions practice, and strategic use of an insurer's independent review can reshape the entire dispute.
Frequently Asked Questions
Does a service contract need to state a specific price to be enforceable in Colorado?
No. Colorado law does not require a fixed dollar price, but the contract must supply some objective method for determining compensation — appraisal, fair market value, reasonable value, an incorporated rate schedule, or a similar neutral standard. A term that leaves price to one party's unilateral post-performance decision, with no objective benchmark, generally is not enforceable as a price term.
What is the "reasonable value" rule in Colorado contract law?
When a service contract lacks an enforceable price term, Colorado courts supply the missing term by awarding the reasonable value of the services actually rendered. The Colorado Supreme Court put it plainly nearly a century ago: "a contract for work which names no price is a contract to pay what the work is worth." Belisomo v. Ceresa, 251 P. 531, 532 (Colo. 1926).
Who has the burden of proving reasonable value at trial?
The party seeking to recover — typically the service provider — must prove the reasonable value of its services through admissible evidence. If the plaintiff cannot prove the reasonable value exceeded what has already been paid, its breach of contract claim fails.
Can a restoration or construction company recover attorney fees if its contract has no enforceable price term?
Usually not. Attorney fees are not recoverable in Colorado absent a statute or enforceable agreement. When the court determines compensation under the reasonable value rule rather than a contractual price term, fee-shifting provisions tied to that contract generally do not apply.
What should I do if I receive a large invoice under a contract that never listed a price?
Preserve the contract, invoice, insurance correspondence, and any pre-work communications, and speak with a Colorado commercial litigation attorney before paying or responding. The reasonable value rule is not a technicality — on the right facts, it is a substantive defense that can dispose of the entire claim.
How Hollington Law Firm Can Help
Hollington Law Firm represents Colorado businesses and property owners in disputes involving restoration, construction, and service contracts, including cases where the opposing party seeks to enforce one-sided pricing provisions. If you have received an invoice or lawsuit demanding payment under a contract that never identified a price, we can evaluate the enforceability of the price term, the strength of any reasonable value defense, and the exposure on fees and interest.
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