Deljo Heating, Cooling & Plumbing

Deljo Heating, Cooling & Plumbing maintains a 4.9-star average across 3,363 customer reviews in Chicago, Illinois. The company provides around-the-clock service every day of the week, handling residential heating, cooling, and plumbing needs across the city. Reviewers consistently mention professional interactions, clear communication about repair options, and transparent pricing discussions before work begins. Customers describe technicians who arrived on time, explained what was needed in plain language, and completed installations within a single day.

The company offers same-day service for urgent situations, with reviewers noting technicians arrived quickly during heat waves and completed AC and furnace replacements within one day. Financing options and discount programs appear in multiple reviews, making full system replacements more accessible for homeowners. Multiple five-star reviewers specifically praise the diagnostic process, noting technicians identified problems efficiently and explained repair options without pressure.

Customers recount specific positive experiences with named technicians. Jorge earned praise for arriving on time, clearly explaining pricing, and fixing leaks completely. Bart Z was described as thorough and knowledgeable, quickly diagnosing an issue and taking time to ensure the customer understood what was wrong. Gabriel G received recognition for great service on a service call. One reviewer noted their technician made the experience reassuring after a previous unsatisfactory experience with another company.