Princeton Heights · South St. Louis

HVAC Services in Princeton Heights

The gingerbread brick bungalows of Princeton Heights are some of South City's best-built homes. We keep them just as comfortable as they are charming.

Degenhardt Heating and Cooling serves Princeton Heights with AC repair, heating service, maintenance, and full high-efficiency replacements. This southwest City neighborhood's signature 1920s-1940s brick 'gingerbread' bungalows are a short run up Gravois from our Carondelet shop.

These are genuinely well-built houses - solid brick, tile roofs, arched doorways - and they respond beautifully to properly sized modern equipment. The mistake is treating them like suburban tract homes; the craft is matching new systems to old construction.

Modern comfort for gingerbread-era brick

Princeton Heights bungalows typically carry basement furnaces with duct runs that serve compact floor plans well, which makes them excellent candidates for high-efficiency two-stage and inverter replacements without major duct surgery.

Finished attics and rear additions are the common comfort gap. Rather than overdriving the main system, we frequently pair it with a small ductless head - cheaper to run, and eligible for Ameren PAYS mini-split rebates when it qualifies.

  • 1920s-1940s brick gingerbread bungalows with tile roofs
  • Compact duct systems well-suited to high-efficiency replacements
  • Ductless heads for finished attics and rear additions
  • Careful workmanship that matches the neighborhood's build quality

Serving Princeton Heights

Contact us today to discuss your needs. Our team is ready to help.

Zip Codes

63109, 63116

LOCAL KNOW-HOW

What Princeton Heights homes actually need

Finished attic comfort

Converted attic bedrooms bake in July. A right-sized ductless head usually beats oversizing the main system - and can qualify for per-ton Ameren PAYS rebates.

Preserving original character

Line sets, vents, and equipment placement are planned to stay out of sight lines on these architecturally distinctive homes.

End-of-life 2000s systems

Many systems here are hitting 20+ years. We provide straight repair-or-replace guidance, with financing and current utility rebates factored into the real cost.

Rebates South St. Louis homeowners can actually use

Verified July 2026

These 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 sheet

Spire 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 rebates

The 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 incentives
LOCAL FAQS

Princeton Heights HVAC questions, answered

Yes - it is one of our core South St. Louis neighborhoods, a short drive up Gravois from our shop at 7624 S Broadway in Carondelet.

Usually yes, with a small ductless mini-split head sized for the space. Qualifying 19+ SEER2 units can earn $500 per ton through Ameren Missouri PAYS in 2026.

In most Princeton Heights bungalows, yes - the compact duct systems here are often in good shape. We verify duct condition first and fix what needs fixing; we never bolt new equipment onto ducts that will strangle it.

Inspection, cleaning, calibration, and performance checks that catch small issues before they turn into no-cool or no-heat calls. Our maintenance plan pairs the spring and fall visits.

Yes, permits are part of the job on replacements in the City. Our Learning Center explains St. Louis HVAC permit requirements if you want the full picture.

Need heating or cooling help in Princeton Heights?

Family-owned, union-trained, and minutes away. Get a free estimate from the crew that has served South St. Louis since 1984.