HVAC Guides for St. Louis Homeowners

Guides are grouped by what you are trying to do: handle an emergency, understand a cost, solve a symptom, choose between options, or get ahead of a season. Cost figures come from named third parties and are dated, because Kenan Corporation does not publish prices in articles.

If a guide describes your problem, the service page linked at its end explains how we diagnose and fix it. If it does not, call. We are open 24 hours, and we offer same-day service when the schedule allows.

Safety first: if you smell gas, leave the house before doing anything else, touch no switches and call 911 or Spire's St. Louis line at 800-887-4173 from outside.

Which guide should you read first?

Start from the situation you are in, not the season.

• The system just failed. Read no heat at night or what to do when your AC stops in a heat wave for the safe steps before a technician arrives.
• You are weighing a price. AC repair cost, furnace replacement cost and the Missouri rebate guide separate published ranges from what changes your own quote.
• You are deciding between options. Repair or replace an old AC, heat pump vs furnace and ductless vs central air lay out the trade-offs.
• The house is old. Cooling a brick home without ducts and radiators or forced air fit the City's housing stock.
• You manage a building. The property manager checklist and rooftop unit planning guide cover light commercial equipment.

How do these guides handle prices and claims?

Every figure names its source and year, such as Angi's 2026 St. Louis labor range or Ameren Missouri's 2026 rebate chart. Third-party numbers are market ranges, never a quote from Kenan Corporation. Where the right answer is repair, the guide says so, because the company was founded in 2010 on the rule that we would rather repair your system than pressure you into a new one.