Mike Williams Plumbing, Heating, Air Conditioning & Sewer

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About Mike Williams Plumbing, Heating, Air Conditioning & Sewer
Mike Williams Plumbing, Heating, Air Conditioning & Sewer delivers residential and light commercial HVAC, heating, cooling, and plumbing solutions across Champaign, IL and surrounding central Illinois communities. The business maintains a 4.5-star average rating drawn from 365 customer reviews, reflecting consistent service quality in a market where contractor reliability varies significantly. Service technicians arrive at customer homes the same day they are contacted, unless the homeowner specifies an alternate schedule, according to the company website.
This contractor distinguishes itself through two substantial guarantees that few competitors match. The 100% satisfaction promise commits the team to re-do any job during the first year to the customer's complete satisfaction or provide a full refund, directly addressing the anxiety homeowners feel about hiring unfamiliar contractors. The same-day service commitment means customers experiencing heating failure during bitter winter weeks or AC breakdown during oppressive summer heat do not face extended discomfort waiting for diagnosis. The company maintains in-house capabilities across heating, cooling, plumbing, and sewer services, enabling a single technician to address multiple system concerns during a single visit rather than scheduling follow-up appointments.
Customer reviews name specific technicians who handled distinct scenarios, providing insight into day-to-day operations. Reviewer Dan Finney documented how Cole arrived on time, conducted a thorough A/C inspection including component photography, and demonstrated the outdoor unit louver-spraying technique the homeowner could perform during high-heat months. Reviewer Andy Wilke described Plumber Ryan resolving a water filter replacement challenge that the homeowner had attempted unsuccessfully over several hours, with the technician explaining each step and answering every question. These detailed accounts illustrate the explanatory approach technicians use when customers seek understanding alongside resolution.
What Customers Say
Three of four positive reviews specifically name the technician who performed the service: Brandon Harney for annual inspection, Plumber Ryan for water filter removal, and Cole for A/C cleaning and guidance. Negative reviews center on pricing disputes and diagnostic delays rather than technician competence, with one reviewer acknowledging a refund was ultimately issued.
Working Hours
| SundayToday | Closed |
| Monday | 8 AM–5:30 PM |
| Tuesday | 8 AM–5:30 PM |
| Wednesday | 8 AM–5:30 PM |
| Thursday | 8 AM–5:30 PM |
| Friday | 8 AM–5:30 PM |
| Saturday | 8 AM–5:30 PM |
Services
Furnace Repair & Installation
Diagnostic services, tune-ups, and full replacement for furnace systems, including heat pump options for homes seeking dual-function heating and cooling.
Air Conditioning Installation & Repair
Central AC installation, same-day repair, and preventive maintenance tune-ups to maintain cooling efficiency during high-heat months.
Heat Pump Services
Repair, tune-ups, and new heat pump installation for homes seeking an all-in-one heating and cooling solution.
Plumbing & Sewer
Sewer line services, sump pump work, water heater repair, and water heater installation and replacement across residential properties.
Maintenance Agreements
Annual inspection programs designed to catch developing issues before they cause system failure, keeping heating and cooling equipment operating at peak efficiency.