This is a suit on quantum meruit for the value of certain window and door screens sold and delivered-to defendant. Plaintiff recovered and defendant prosecutes the appeal.
But two questions are presented for consideration: First, it is urged plaintiff’s instruction is insufficient in that it authorizes a finding without covering the whole cause; and, second, that there is no evidence tending to show the reasonable value of the screens sued for.
It appears plaintiff entered into a contract in writing with defendant whereby it agreed to install certain metal window and door screens in his residence situate in the city of St. Louis, for $260. After-wards, about the middle of May, plaintiff installed the screens and defendant retained them, though he complained several times that they were not in all respects in accordance with the contract. • Plaintiff sent its workmen on two or three occasions to defendant’s residence and readjusted the screens, until, according to its evidence, they were finally made perfect in all respects. It appears that defendant retained the screens *684and used them all of the time until after this suit was filed on November 20th of the same year. Plaintiff sues on quantum meruit for the reasonable value of the screens so installed, that is, the material and workmanship thereabout, not exceeding $260, the contract price.
By his answer defendant first entered a'general denial, and then specially pleads that the screens were not constructed and installed in accordance with the contract and were of no value whatever. This defense was interposed as a complete bar to plaintiff’s right of recovery, and the answer claims nothing by way of counterclaim or recoupment for damages or by way of diminishing plaintiff’s recovery as for a partial' failure of consideration.
The record is replete with evidence tending to prove the screens conformed in all respects to the contract and there is ample evidence, too, on the part of defendant to the contrary. However, it appears without dispute that the screens were installed by plaintiff in defendant’s residence about the middle of May and that he retained them and continued to use them for the purposes for which they were installed until after the suit was instituted on November 20th. In this state of the evidence, the case seems to have resolved itself into a controversy as to whether or not defendant accepted, retained and used the screens as a substantial compliance with the contract, notwithstanding they may not have in all respects complied precisely therewith, or rejected them within a reasonable time. On this issue, the court instructed for the plaintiff as follows:
“The court instructs you that even if you shall find and believe from the evidence that the workmanship or material furnished by plaintiff was not in accordance with the contract in some particular, still if you shall find and believe from the evidence that the defendant retained the screens and did not return or *685offer to return them to plaintiff within a reasonable time after delivery, then the plaintiff is entitled to recover of the defendant the reasonable value of such work and material so furnished by it, notwithstanding the same were not in accordance with said contract as aforesaid; and in such case your verdict should be in favor of the plaintiff for such reasonable value, not exceeding two hundred sixty dollars, together with interest at six per cent from the date of the filing of this suit, namely November 20, 1909.”
The defendant asked, and the court gave, with a modification, the following instruction, on his theory of the case:
“The court instructs -the jury that if they find and believe from the evidence that plaintiff entered into a contract with defendant to furnish and install throughout a residence for a stipulated price, the screens, for the reasonable value of which plaintiff is suing, then it was the duty of plaintiff to substantially comply with the terms of said contract (if such contract was so entered into); and if you further find and believe from the evidence that plaintiff failed to substantially comply with the terms of such contract, and that such failure (if plaintiff did so fail) was not due to any fault or hindrance on the part of the defendant, and if you further find from the evidence that defendant did not accept any part of said screens and did not appropriate any part thereof to his own use and benefit, but within a reasonable time after their delivery to him, notified the plaintiff that he rejected them, then your verdict herein must be for the defendant.
The words italicized in this instruction are those added by the court and constitute its modification to the instruction as requested. Obviously the modification was a proper one in the circumstances of the case. It is clear that these two instructions properly submitted the issue to the jury.
*686But it is argued ou the part of defendant the instruction above copied and given at the instance of plaintiff is erroneous, in that it omits to reckon with the fact that defendant was entitled to have the recovery diminished in his favor, in so far as he suffered damages, because the screens were insufficient or failed to comply with the contract. The proposition is, that though plaintiff may have a right to recover the reasonable value of the screens, defendant is entitled to have the amount of the recovery diminished in so far as he was damaged by their failure to meet the contract requirements and that a recovery may be allowed only for the reasonable value thus mitigated. There can be no doubt that the vendee may, within a reasonable time, reject a chattel if it does not comply with the contract requirements and thus defeat the right of recovery therefor entirely, or he may retain it and sue for a breach of the warranty, or recoup for damages when sued for the purchase money. However, if he retains the chattel after a reasonable time has elapsed, he waives his right to reject it altogether, and must rely alone upon his right to sue for the breach of warranty or recoup for damages in a suit for the purchase price as if a partial failure of consideration appeared. [See Graus, etc., Mfg. Co. v. Magee, etc., Co., 42 Mo. 307.] But if he retains the chattel and seeks to have damages allowed by way of counterclaim, recoupment or as if a partial failure of consideration obtained in the case, he must lay a claim thereto in his answer. [See 35 Cyc. 541; Decker v. School District, 101 Mo. App. 115, 118, 74 S. W. 390; Emery v. Boehmer Shoe Co., 167 Mo. App. 703, 151 S. W. 174; Brown v. Weldon, 27 Mo. App. 251; s. c. 99 Mo. 564, 13 S. W. 342.] In the instant case, no such claim is laid in the answer. The answer sets forth that the screens in no respect complied with the contract and concludes as follows: “Wherefore, defendant says that he is not indebted to plaintiff what*687ever, as said screens are of no value to defendant. Having fully answered, defendant asks to be hence dismissed with its costs.” The breach of contract here interposed by the answer is relied upon as a complete bar to plaintiff’s right of recovery and in no' sense prays a recoupment or that the recovery for the reasonable value of the screens be. diminished on account of the breach of contract in respect of manufacturing and installing them. Obviously that matter was not in the case, for defendant had a right to waive its claim for a recoupment of damages or for a diminished recovery, if he saw fit, and put the matter forward as a complete bar to plaintiff’s cause of action as he did. [See Decker v. School District, 101 Mo. App. 115, 118, 74 S. W. 390.] It therefore appears that plaintiff’s instruction is not to be condemned for failing to reckon with this matter which was not in judgment, for the reason it was not claimed in the answer.
It may be said, too, that in none of the' several instructions requested by defendant at the trial was the matter of diminishing the recovery by allowing damages to him put forward in the case. The proposition is nowhere suggested by defendant in either the answer or instructions- and the defense relied alone upon a complete bar.
There is no pointed and direct evidence as to the reasonable value of the screens, but, notwithstanding this, the jury awarded plaintiff a verdict for $260, or the contract price, together with interest thereon from the date of filing the suit. It is urged the judgment should be reversed for the reason the court should not have submitted the matter of the reasonable value of the screens without evidence thereon. However, the contract whereby plaintiff undertook to manufacture and install the screens for $260 was introduced in evidence and this alone was sufficient for the prima facie purpose of the case. After so much was shown on the part of plaintiff, it was competent for defend*688ant to show that, although such was the agreed value, it was not the reasonable value of the screens, for it is the reasonable value, not exceeding the contract price, and not the contract price, which must control. But when the contract price is shown, it is regarded as a sufficient showing, prima facie, touching the reasonable value, and devolves the burden upon defendant to show the contrary. [Redman v. Adams, 165 Mo. 60, 70, 65 S. W. 300; see, also, Rude v. Mitchell, 97 Mo. 365, 11 S. W. 225; 35 Cyc. 541.]
The judgment should be affirmed. It is so ordered.
Reynolds, P .J., concurs. Allen, J., having been of counsel, is not sitting.