Delta T Heating & Cooling LLC

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About Delta T Heating & Cooling LLC
Delta T Heating & Cooling LLC operates as a Philadelphia-based HVAC contractor serving the broader metro area with heating and cooling solutions. The company holds a 5-star rating derived from 103 customer reviews, indicating strong satisfaction within its service territory. Dimos serves as the primary technician, handling service calls and repairs for residential heating and cooling systems. The business maintains Saturday availability from 9 AM to 5 PM, with weekday hours extending from 8 AM to 8 PM, accommodating working homeowners who need evening or weekend appointment options.
What distinguishes Delta T Heating & Cooling is the emphasis on transparent communication and customer education throughout the service process. Dimos takes time to explain the specific problem, walk through each repair step before performing work, and present pricing options so homeowners can make informed decisions. Multiple reviewers note he photographed damaged components and called them outside to physically demonstrate what he found, showing the system in plain terms rather than relying on technical jargon. This educational approach extends to identifying underlying issues like improper circuit breaker setups that affect cooling performance.
Customer stories from reviews reveal consistent patterns around rapid response and problem-solving skill. Thomas Rhodes called about a diagnostic issue on a 100-degree afternoon and Dimos arrived the same day, additionally evaluating whether circuit breaker improvements could enhance AC function. Samantha Reichard described Dimos returning within 24 hours when her heater failed during cold weather, noting this was not the first emergency call where he responded promptly. Charlotte Erace's review detailed Dimos correcting problems from previous owners who never serviced the AC system, achieving airflow the homeowners assumed was impossible.
What Customers Say
All five sampled reviewers award 5 stars, with four explicitly mentioning same-day or next-day response times. Three reviewers call out the technician Dimos by name, describing him as professional, knowledgeable, and transparent about pricing. No negative reviews appear in the sample, and sentiment centers on responsiveness and educational communication rather than pricing discussion.
Working Hours
| SundayToday | Closed |
| Monday | 8 AM–8 PM |
| Tuesday | 8 AM–8 PM |
| Wednesday | 8 AM–8 PM |
| Thursday | 8 AM–8 PM |
| Friday | 8 AM–8 PM |
| Saturday | 9 AM–5 PM |
Services
AC Repair & Maintenance
Diagnostic calls and repairs for air conditioning systems, including identifying airflow and circuit issues.
Heating Repair & Maintenance
Heater repair services with rapid response, addressing failures within 24 hours.
System Diagnostics
Thorough inspections explaining problems clearly before recommending repairs.
HVAC Education & Consultation
Walk-through explanations of what needs repair, with photos and physical demonstrations for homeowners.