MJS A/C and Heating

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About MJS A/C and Heating
MJS A/C and Heating has earned a perfect 5.0-star rating across 165 verified client reviews in the Houston metro area, establishing itself as a trusted name for residential cooling and heating solutions. Operating from Houston, Texas, this contractor serves homeowners across the region including the nearby Katy community, responding to emergency calls when climate control systems fail during the brutal summer months. The team specializes in diagnostic evaluation, component replacement including capacitors and refrigerant handling, and complete system replacements for aging HVAC equipment that has reached the end of its service life.
What distinguishes this contractor from neighboring rivals is their commitment to same-day service availability and transparent assessments. Multiple five-star reviews specifically mention the technician arriving within a two-hour window during holiday weekends, a level of responsiveness that proves invaluable when indoor temperatures climb into the nineties. Customers consistently note honest problem identification, with technicians explaining options rather than pushing unnecessary upgrades. The business handles full HVAC system replacements, suggesting certified expertise in equipment sizing, ductwork compatibility, and modern efficiency standards.
Client stories paint a vivid picture of the service experience. One reviewer described a Labor Day weekend breakdown where the technician reached her home exactly at the promised two-hour mark and restored function within sixty minutes. Another homeowner noted the team replaced their entire HVAC system with fair pricing and clear communication throughout the project. Several clients highlighted Miguel by name, describing him as knowledgeable, courteous, and genuinely invested in educating customers on proper system maintenance. These recurring details about specific technicians and concrete timelines suggest a well-trained crew backed by organized dispatch operations.
What Customers Say
One hundred sixty-five clients awarded perfect five-star ratings, with eighteen percent of reviewers explicitly mentioning same-day or holiday-weekend emergency response capabilities. Technicians arrive within stated time windows according to five separate accounts, and three clients specifically praised transparent cost explanations before work began.
Working Hours
| Sunday | Closed |
| Monday | 7 AM–7 PM |
| Tuesday | 7 AM–7 PM |
| Wednesday | 7 AM–7 PM |
| Thursday | 7 AM–7 PM |
| Friday | 7 AM–7 PM |
| SaturdayToday | 7 AM–7 PM |
Services
AC Repair & Component Replacement
Diagnose and replace capacitors, compressors, refrigerant lines, and electrical controls for all major brands.
HVAC System Installation
Complete heating and cooling system replacements including equipment selection, removal, and professional installation.
Preventive Maintenance
Seasonal tune-ups, filter changes, coil cleaning, and performance verification to extend equipment life.
Emergency After-Hours Service
Response capability for breakdown emergencies outside regular business hours, including holidays.
System Diagnostics & Troubleshooting
Detailed assessment of cooling performance, airflow measurements, and leak detection using professional methods.
Heating Repair & Service
Repair of heating components including burners, heat exchangers, and thermostat integration issues.