HVAC Installation in Lafayette Square, St. Louis
A new HVAC system is only as good as the install behind it. We size it right, seal the ducts, and commission every system so it delivers the efficiency you paid for — for years, not months.
HVAC Installation in Lafayette Square
Lafayette Square homeowners count on STL Air Pros for expert hvac installation. Our NATE-certified technicians know Lafayette Square's 1870s–1890s housing stock and provide same-day service, upfront flat-rate pricing, and 24/7 emergency availability across this St. Louis City neighborhood. We repair, install, and maintain every major brand, and every job is backed by our workmanship guarantee.
HVAC in Lafayette Square — Neighborhood Context
Lafayette Square's ornate 1870s–1890s Victorian row houses were built before central HVAC existed, so most systems are retrofitted into tight spaces. Original plaster walls limit ductwork options, making ductless mini-splits ideal for upper floors and additions. The high ceilings common in these homes also mean larger heating loads per square foot than modern construction.
What We Handle in Lafayette Square
HVAC Installation in Lafayette Square — Common Questions
Answers to the questions Lafayette Square homeowners ask us most.
How much does HVAC installation cost in Lafayette Square?
A full furnace and AC replacement in Lafayette Square typically ranges from $6,000 to $12,000 depending on system size, efficiency tier, and ductwork needs. We provide free, fixed-price in-home estimates.
Can you install HVAC in older Lafayette Square homes?
Absolutely. Lafayette Square's older homes are our specialty. We handle tight mechanical spaces, plaster-wall ductwork, and the space constraints unique to historic construction — including ductless mini-splits where traditional ductwork isn't practical.
How long does installation take in Lafayette Square?
Most standard replacements in Lafayette Square are completed in one day. Larger jobs with ductwork modifications may take two days. We protect your floors and clean up the old equipment every time.
"Our AC went out on a 97-degree day and STL Air Pros had a tech at our house within two hours. Fixed a blown capacitor on the spot, explained exactly what failed and why, and the price was totally reasonable. Won't call anyone else."
— Marcus Thompson, Webster Groves, MO
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