The court found that the defendant breached the warranty of habitability, and we find that the evidence supports that judgment. Defendant actually knew of the fixture problem from the first days that plaintiff occupied the apartment. The evidence also showed that plumbers repaired the toilet on four occasions — January 4, 13, and 19, and March 16, 1988 — twice before the plaintiff vacated, twice after. Defendant testified that the plumbers performed the March labor for free because he assumed “they felt that they should have found the problem before.” At that time, the plumbers finally discovered an obstruction inside the toilet. During the successful March repair, the plumbers, for the first time, used an auger and detected a Muppet toothbrush in the toilet trap. The expert testified at trial that during the March repair the plumber “removed the toilet and turned it upside down and shook it and got the [toothbrush] out of there.” We hold that this evidence supports the conclusion that defendant failed to make timely repairs under § 4458(a).