The Trusted St. Louis HVAC Contractor

If you’re looking for a trustworthy heating and cooling contractor that provides best-practice craftsmanship with integrity, then you’ve come to the right place! Our only goal is your 100% satisfaction when it comes to living in a more comfortable, energy efficient home in the St. Louis area and beyond.

Get Ready for Summer!

UP TO $4,375 SAVINGS OFF HEATING & COOLING SYSTEMS

0% INTEREST WITH NO PAYMENTS FOR 12 MONTHS; subject to credit approval

0% INTEREST FOR 36 MONTHS ON SELECT SYSTEMS; subject to credit approval

OTHER ATTRACTIVE FINANCING OPTIONS AVAILABLE

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HVAC Services

Stay cool. Get cozy. Our heating and cooling services keep you comfortable all year long.

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Indoor Air Quality

Breathe easy. We make sure the air in your home is clean and safe.

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Improve Comfort

Turn your home into the oasis it can be.

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Energy Efficiency

Be green, save green, and be comfortable.

Heating and AC Repair and Replacement in St. Louis

Finding a heating and cooling contractor near you that you can trust is one thing, and often times finding a contractor that is available 24/7 is another. Fortunately for homeowners throughout the greater St. Louis area, SmartHouse makes it our day to day business to be both for our customers! The NATE, ENERGY STAR Missouri, and Building Performance Institute certified team at SmartHouse is dedicated to finding the right solutions for your home comfort, saving you energy and increasing the health of your indoor environment.

From AC Replacement & Furnace Repair to Zoning & Home Performance Services

SmartHouse offers an extensive array of heating, cooling, diagnostic, and improvement services for both existing homes and new construction jobs. Not only can we repair and maintain any make and model of air conditioner, heat pump, boiler, or furnace, we can also diagnose your home performance issues through a comprehensive analysis of your home, then recommend the right home improvements to reduce your heating and cooling needs. From there, we can handle your AC and furnace replacement with new equipment that is perfectly sized, to save you money on your energy bills for years to come!

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The Best Equipment, The Best Price

Homeowners make the Smart Choice because they know we stand behind our work, and because SmartHouse is dedicated to delivering reliable quality at the best possible price. We always offer multiple options for improving the efficiency and affordability of your home, like innovative Daikin, Carrier and Mitsubishi systems. But you can rest easy, knowing your home comfort needs will always take precedence over any kind of sales quota. We can even reduce the cost of your AC or furnace installation through our list of rebates, incentives, and financing options!

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Award-Winning, Trusted Experts in St. Louis Home Comfort

The SmartHouse team is a proud recipient of the BBB Torch Award for outstanding ethics and integrity. The BBB Torch Award speaks to our shared mission of providing the community with trustworthy and reliable HVAC and home performance services. Learn more about our commitment to keeping the Greater St. Louis community safe and comfortable and our mission to bring accessible, energy-efficient heating and cooling solutions to all homes in the area or call us now at 314-270-1545.

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SmartHouse is Available 24/7

At SmartHouse, our knowledge, training, positive attitude toward service, and business ethics makes us the “Smart Choice” for all of your heating, cooling, efficiency, and comfort needs. However, you don’t just need our expertise during “usual” business hours — when you need emergency HVAC services, we're here to cater to your schedule. When you call SmartHouse, you will:

Speak to a live person, any hour of any day

Get access to emergency HVAC service 8am - 7pm Weekdays; 8 am to 5pm Weekends & Holidays.

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Latest Blog Posts

May 7, 2025

Why Skipping AC Tune-Ups Can Cost You More Later

Why Skipping AC Tune-Ups Can Cost You More Later. Skipping your air conditioner’s annual tune-up might seem like a small way to save money now, but it often leads to higher costs down the road. Neglecting regular AC maintenance can leave you coming home to a hot, humid home on the day you need cooling most. Routine maintenance keeps your Read more...
May 7, 2025

Heat Pump FAQs for Homeowners

Heat Pump FAQs for Homeowners. Heat pumps are increasingly popular among St. Louis homeowners looking to improve comfort and lower energy bills. They efficiently heat and cool your home by transferring heat rather than generating it, offering significant savings and environmental benefits. Let’s break down some of the most common questions we hear from homeowners in St. Louis. We’ll answer: Read more...
May 7, 2025

AC Repair vs. Replacement: How to Know Which Is Right for You

AC Repair vs. Replacement: How to Know Which Is Right for You. When your AC isn’t cooling properly, you’re faced with a common homeowner dilemma: should you repair your current unit or replace it altogether? The decision typically comes down to the unit’s age, repair costs, reliability, and energy efficiency. This guide will help you weigh your options and understand Read more...