Ductless Mini-Split Installation in St. Louis & Jefferson County
A ductless mini-split is often the cleanest fix when adding central air would mean tearing into plaster, soffits, or a finished basement ceiling. Here's when it's the right call — and when it isn't.
When a Ductless Mini-Split Makes Sense in St. Louis
St. Louis has thousands of brick bungalows, century-old two-stories, and finished attics that were never built with central air in mind. Running new ductwork through plaster walls or low-clearance basements is invasive, expensive, and often ugly. A ductless mini-split lets us add real cooling (and often heating) to those spaces with two small line-set holes and an outdoor condenser — no demo, no soffits, no compromise.
They're also our go-to for additions, sunrooms, garage workshops, and home offices where extending the existing duct system would unbalance the rest of the house. After 50+ years of HVAC work in Jefferson and St. Louis Counties, we'll tell you straight when ductless is the right answer and when sticking with central air will serve you better.
- Ideal for older homes without existing ductwork
- Cool (or heat) a single room, addition, or finished space
- High efficiency — usually 18+ SEER
- Quiet, zoned comfort with individual temperature control
- Honest assessment of whether ductless or central is right for you
What's Included
Single-Zone Systems
One outdoor unit pairs with one indoor head — perfect for a bedroom, addition, or finished attic.
Multi-Zone Systems
Up to 4–5 indoor heads run off one outdoor unit, giving each room its own thermostat.
Heat Pump Capable
Most mini-splits both cool and heat efficiently down into the low teens — useful in our shoulder seasons.
High SEER Ratings
Modern ductless units routinely hit 18–22 SEER, beating most older central systems on efficiency.
Quiet Operation
Indoor heads run at library-quiet levels — a real upgrade in bedrooms and home offices.
Clean, Minimal Install
Two small line-set penetrations and a condenser pad — no torn-up walls or dropped ceilings.
How Service Works
No mystery, no pressure — just a straightforward path from problem to comfort.
- 01
Tell Us What's Happening
Call or request a free estimate online — we'll listen first.
- 02
On-Site Diagnosis
A local technician inspects your equipment and confirms the issue.
- 03
Clear Options
Honest recommendations: repair, replace, or wait. You decide.
- 04
Comfort Restored
We complete the work cleanly and verify everything runs right.
Frequently Asked Questions
What Homeowners Say
“Honest, clean, professional work. Walked me through what was actually wrong, didn't try to upsell me.”
From Hillsboro to Clayton, We Help Homes Stay Comfortable
Ricotta serves homeowners across Jefferson County and South St. Louis County — from Hillsboro and Festus up through Arnold, Fenton, Kirkwood, Webster Groves, and Clayton. Family-owned, locally based, and ready to help when your home needs it.
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Call Ricotta Heating & Air for residential HVAC service across St. Louis and Jefferson County. Free estimates are available.