Compare the highest-rated hvac professionals in Saint Louis, Missouri. All contractors are licensed, insured, and verified through our rigorous screening process.
A premier full-service HVAC contractor specializing in high-efficiency system installations, complex ductwork design, and 24/7 emergency repairs. Known for expertise in both historic home retrofits and modern smart HVAC systems. They are Carrier Factory Authorized Dealers and NATE-certified technicians.
A family-owned and operated HVAC company with deep roots in the St. Louis community. They provide comprehensive heating and cooling services, from routine maintenance plans to full system replacements. They are particularly respected for their furnace expertise, crucial for St. Louis winters, and offer upfront pricing on all jobs.
Serving St. Louis for over 70 years, Galmiche & Sons is a trusted name for reliable HVAC service and installation. They work with top-tier brands like Lennox and Trane and are experts in zoning systems, which are ideal for the city's variable temperature swings. Their team includes EPA-certified technicians for handling refrigerants.
The St. Louis HVAC market is robust and highly competitive, driven by the city's humid continental climate. Residents face hot, humid summers that demand reliable air conditioning and cold winters requiring efficient heating, placing a year-round strain on HVAC systems. This leads to strong seasonal demand for installation in spring/fall and a high volume of emergency repair calls during summer heatwaves and winter cold snaps. Top contractors distinguish themselves with 24/7 emergency service, expertise in both high-efficiency AC and furnace systems, and solutions for improving home energy efficiency to manage extreme weather costs.
4.7+ star average from verified customer reviews
All contractors are properly licensed and insured
10+ years average experience in the industry
Familiar with Saint Louis regulations and climate
Get answers to common questions about hvac services in Saint Louis, Missouri.
For a standard, single-family home, a full AC replacement in the St. Louis area typically ranges from $5,000 to $12,000. This wide range depends on the unit's efficiency (SEER rating), your home's size, and the complexity of the installation. Given our humid summers, investing in a properly sized, higher-efficiency unit (16+ SEER) can provide significant long-term savings on cooling bills and better humidity control.
The ideal times are during the mild shoulder seasons: schedule your air conditioning tune-up in early spring (March-April) and your furnace check-up in early fall (September-October). This proactive timing ensures your systems are ready for St. Louis's intense summer heat and winter cold snaps, helps you avoid emergency service wait times during peak demand, and often allows for better scheduling flexibility and potential pre-season discounts from local providers.
While Missouri has no statewide HVAC licensing, reputable St. Louis contractors must be licensed by the city or county they work in. For rebates, always check with Laclede Gas (for high-efficiency furnaces and boilers) and Ameren Missouri (for high-efficiency air conditioners and heat pumps), as they frequently offer incentives. Additionally, federal tax credits for qualifying high-efficiency systems can provide significant savings on your upgrade.
Prioritize locally established companies with strong reputations, verified licenses, and proper insurance. Check for positive reviews on platforms like Google and the BBB, and ask for references in your specific neighborhood. A trustworthy St. Louis contractor will perform a detailed Manual J load calculation to correctly size your system for our climate, provide clear written estimates, and never pressure you with high-pressure "today-only" deals.
This depends on the age, efficiency, and repair history of your unit. If your furnace is over 15 years old, has a pilot light (indicating very low efficiency), or requires frequent repairs, a pre-winter replacement is wise to avoid a costly emergency breakdown during a freeze. Modern, high-efficiency models are far more effective and can drastically reduce your heating costs, which is a significant benefit given our cold, damp winters. A reputable HVAC professional can perform a thorough evaluation and cost-benefit analysis.