HVAC Services in Carondelet
Our shop sits at 7624 S Broadway, so Carondelet is not just a service area - it is home. Union-trained heating and cooling for the neighborhood we have worked in since 1984.
Degenhardt Heating and Cooling is Carondelet's neighborhood HVAC company in the most literal sense: our shop is at 7624 S Broadway, in the heart of the neighborhood. When a Carondelet furnace quits or an AC dies in a July heat wave, we are minutes away - no dispatch fee surprises, no crew coming from across the metro.
Carondelet is one of St. Louis's oldest neighborhoods - a riverfront town founded in 1767 and annexed by the city in 1870 - and its housing shows that history. Much of the neighborhood is 1890s-1940s brick, from workers' cottages to two- and four-family flats, and those homes heat and cool very differently than suburban builds.
HVAC for Carondelet's historic brick housing stock
Solid-masonry brick homes hold heat in summer and lose it slowly in winter, so right-sizing matters more here than almost anywhere else in the metro. Many Carondelet houses started life with radiators or gravity furnaces, which means retrofitted ductwork of wildly varying quality - and as a Local 36 sheet-metal shop, duct fabrication is literally our trade.
We measure and build for the house you actually own: high-efficiency furnaces and ACs where ductwork supports them, and ductless mini-splits for flats, additions, and third floors where it never will.
- 1890s-1940s solid brick homes, cottages, and multi-family flats
- Retrofitted or undersized ductwork from radiator-era conversions
- Ductless mini-split candidates: upper floors, additions, storefront apartments
- Custom sheet-metal duct repair and fabrication by Local 36 union hands
Serving Carondelet
Contact us today to discuss your needs. Our team is ready to help.
Popular in Carondelet
Zip Codes
63111
What Carondelet homes actually need
Radiator-era retrofits
Many Carondelet homes were converted from radiators or gravity furnaces decades ago. We evaluate the existing duct runs before quoting, so you are not paying for a high-efficiency system choked by a bad retrofit.
Solid-brick load calculations
Masonry walls change heating and cooling loads. We size equipment with the building's real thermal behavior in mind instead of a square-footage rule of thumb.
Multi-family metering
Two- and four-family flats often need separate systems per unit. We design per-unit solutions, including ductless options that avoid tearing into shared walls.
Rebates South St. Louis homeowners can actually use
Verified July 2026These are the current published utility programs for qualifying high-efficiency equipment. Amounts are program maximums, not quotes; eligibility rules apply and we confirm what your home qualifies for at your free estimate.
Ameren Missouri PAYS / FastTrack HVAC
Rebates valid January 1 - December 31, 2026 for qualifying equipment installed through a participating contractor: up to $1,000 for a 15.2+ SEER2 central air conditioner, up to $2,000 for a qualifying air-source or dual-fuel heat pump, and $500 per ton for 19+ SEER2 ductless mini-splits. Requires PAYS program participation and an existing system that is 10+ years old, rated 14 SEER or less, or no longer working.
Ameren Missouri rebate sheetSpire Missouri residential rebates
Program year runs October 1 through September 30: $300 prepaid-card rebate for a 96%+ AFUE gas furnace, $200 for 92-95.99% AFUE, and $300 for a 90%+ AFUE gas boiler. The install must be performed by a licensed HVAC contractor and the home must have an active Spire account.
Spire Missouri rebatesThe federal 25C energy-efficiency tax credit ended December 31, 2025, so we do not promise a federal HVAC tax credit on 2026 installs. See our rebate explorer for the full, current list.
Explore all current rebates and incentivesCarondelet HVAC questions, answered
Our shop is at 7624 S Broadway, St. Louis, MO 63111, on Carondelet's main corridor. We have been a family-owned, union-trained HVAC company here since 1984.
Often, yes. We inspect the existing duct runs first; if they are sound, we match equipment to them. If they are undersized or leaking, we can repair or refabricate sections in-house - sheet metal is a core trade for our Local 36 technicians.
Qualifying high-efficiency installs can be eligible for Ameren Missouri PAYS rebates (valid through December 31, 2026) and Spire Missouri furnace and boiler rebates. Eligibility depends on your home and equipment; we confirm what applies at your free estimate.
Yes - mechanical work in the City of St. Louis requires a permit, and we handle that as part of the job. Our Learning Center covers St. Louis HVAC permit rules in plain language if you want the details.
Because our shop is in the neighborhood, Carondelet calls are usually our shortest drives of the day. Call (314) 631-1554 and we will give you an honest arrival window.
More South St. Louis neighborhoods we serve
Need heating or cooling help in Carondelet?
Family-owned, union-trained, and minutes away. Get a free estimate from the crew that has served South St. Louis since 1984.