1.
(a)
The law imposes upon building contractors and others performing skilled services the obligation to exercise a reasonable degree of care, skill, and ability, which is generally taken and considered to be such a degree of care and skill as, under similar conditions and like surrounding circumstances, is ordinarily employed by others of the same profession.
Block
v.
Happ,
144
Ga.
145 (
(6) “Recoupment may be pleaded in all actions ex contractu, where from any reason the plaintiff under the same contract is in good conscience liable to defendant. In all cases where recoupment may be pleaded, if the damages of the defendant shall exceed in amount those of the plaintiff, the defendant shall recover of the plaintiff the amount of such excess.” Code § 20-1314.
(c) Where, in such a case, the defendant by cross-action claimed such damages as indicated above, his action is not one arising ex delicto and is not in the nature of a set off such as to require the grant of affirmative equitable relief and is not such an action as that in those cases exemplified by
Bibb Basket Co.
v.
Eufaula Bank & Trust Co.,
42
Ga. App.
394 (
(d) Where such an action is brought by the building contractor against the owner in a court of law onbq which has no equitable powers, and has a jurisdictional limitation of $1,000 on the amount recoverable in that court; and, the defendant owner in his original cross-action, in the nature of a recoupment seeks to recover damages in the amount of $3,000, such cross-action may be amended to reduce the amount claimed to a sum within the jurisdictional limitation of the court. Code § 81-1301.
(e) Under an application of the foregoing principles of law to the facts of the present case, in which the plaintiff seeks to reco3>-er a balance due under a contract for the remodeling of the home of the defendants; and the defendants in their cross-action allege that the plaintiff’s failure to perform his obligations properly under the terms of the contract resulted in specified items of damage to them, the cross-action is in the nature of a recoupment, of which the court, as one of law only, has jurisdiction; and such cross-action is amendable to reduce the amount of damage claimed to a sum within the jurisdictional limitation of the court. The trial court, consequently, did not err in overruling the general demurrer to the original cross-action, in overruling the general demurrer to the cross-action as amended, or in overruling the objections to the amendment to the cross-action.
2. In such a cross-action, however, as indicated abo3'’e, the proper measure of the owners’ damage would be the difference of the value of the house as finished by the building contractor and the house as it ought to have been finished under the terms of the contract
(Small
v.
Lee,
4
Ga. App.
395,
3. While “performance as a condition precedent to a recovery on the contract must, according to the rule of the common law, be strict performance, in accordance with the terms of the contract and good faith and substantial performance is not enough,” (17 C. J. S. 1085, § 508;
Haynie
v.
Murray,
74
Ga. App.
253,
4. Under an application of the foregoing principles of law to the facts of the present case, the trial court erred in disallowing the plaintiff’s amendment to its original petition. While the gist of the original petition was that the contract had been completed, the plaintiff would be entitled to recover upon a showing of substantial performance of the contract or upon a showing of prevention of performance by the defendants, and it was entitled to amend in this petition so as to allege that the contract had been completed “with the exception of some minor corrections that the plaintiff was prevented by the defendants from completing.” The trial court’s error in refusing to permit this amendment rendered all further proceedings nugatory.
Judgment reversed.
