Marathon Plumbing, Heating and AC Repair

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About Marathon Plumbing, Heating and AC Repair
Marathon Plumbing, Heating and AC Repair serves Canoga Park and the surrounding San Fernando Valley with a 4.9-star rating drawn from 490 reviews. The contractor operates Monday through Friday from 7:30 AM to 7 PM and Saturday from 9 AM to 5 PM, offering same-day service for urgent calls. Their team handles residential heating, cooling, and plumbing needs, with technicians who maintain consistent communication throughout each appointment and provide photo-documented estimates before any work begins.
The company emphasizes thorough diagnostics and transparent pricing, with technicians arriving on time and leaving workspaces clean. Reviewers note the team checks all components for proper alignment and security, and a quality control inspection follows every installation. This attention to detail helps catch issues like carbon monoxide leaks before they become safety hazards.
Reviewers specifically commend Juan for detecting a crack and minor carbon monoxide leak that prevent a serious incident, and John Bonilla for his consistent professionalism across multiple annual service visits, including winter season tune-ups. Justin P and Christian performed an AC installation noted for quality work and tidiness. A reviewer described a follow-up call from a team member after service to confirm satisfaction, and another noted Edmund Brown navigating difficult crawlspace conditions to install a new furnace.
What Customers Say
All reviewers award 5 stars, with multiple clients mentioning specific technicians by name. Juan earned particular praise for identifying a carbon monoxide leak, while John Bonilla has maintained multi-year service relationships with at least one client. Positive feedback consistently cites diagnostic thoroughness, same-day availability, and post-service follow-up.
Working Hours
| Sunday | Closed |
| Monday | 7:30 AM–7 PM |
| Tuesday | 7:30 AM–7 PM |
| Wednesday | 7:30 AM–7 PM |
| Thursday | 7:30 AM–7 PM |
| Friday | 7:30 AM–7 PM |
| SaturdayToday | 9 AM–5 PM |
Services
AC Installation & Repair
Justin P and Christian installed a client AC system with quality work, checking all components for alignment and cleanliness.
Furnace Installation
Edmund Brown installs furnaces including difficult jobs requiring crawlspace navigation and multi-level carrying.
Plumbing System Inspection
Eric conducted thorough plumbing inspections with photo-documented findings and detailed estimates.
Heating & Cooling Maintenance
Annual tune-ups for winter and summer seasons, with technicians explaining equipment operation post-service.
Carbon Monoxide Leak Detection
Juan detected a crack and carbon monoxide leak for a client, preventing a serious safety incident.
Quality Control Inspection
Patrick Kenney performs quality control checks after installations, fixing issues from previous work.
Thermostat Installation & Setup
New thermostat installation with full explanation of operation and features for homeowner understanding.