HVAC Services in Boulevard Heights
From 1920s brick to post-war ranches near the River Des Peres, Boulevard Heights homes get honest diagnostics and union-trained installs from a shop ten minutes away.
Degenhardt Heating and Cooling provides complete heating and cooling service across Boulevard Heights, the far-south City neighborhood between Carondelet Park and the River Des Peres. Repairs, tune-ups, ductwork, and full high-efficiency replacements - all from our family shop about ten minutes away on S Broadway.
Boulevard Heights mixes eras more than most South City neighborhoods: 1920s-1930s brick bungalows share blocks with post-war brick ranches and mid-century infill, so the right HVAC answer genuinely differs house to house.
Two housing eras, one honest approach
The pre-war brick here behaves like the rest of South City - thermally heavy, compact ducts, basement furnaces. The post-war ranches bring different issues: slab sections, lower attic clearances, and 1950s-1960s duct layouts that often run through unconditioned space and leak badly.
That is why we diagnose before we quote. Duct sealing on a leaky post-war run can recover real capacity before you spend a dollar on new equipment, and when replacement is the answer, we size to the actual house.
- 1920s-1930s brick bungalows plus post-war brick ranches
- Duct sealing for leaky runs through unconditioned space
- Load calculations matched to each era's construction
- Full replacements, repairs, and seasonal maintenance plans
Serving Boulevard Heights
Contact us today to discuss your needs. Our team is ready to help.
Popular in Boulevard Heights
Zip Codes
63111, 63116, 63125
What Boulevard Heights homes actually need
Leaky post-war ductwork
1950s-60s duct runs through attics and crawl spaces bleed capacity. Sealing and repair often restore comfort at a fraction of replacement cost.
Mixed-era diagnostics
A bungalow and a ranch on the same block need different solutions. We diagnose the specific house instead of quoting a one-size package.
Humid summers near the river
Proper sizing and two-stage or inverter equipment control St. Louis humidity far better than oversized single-stage units that short-cycle.
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 incentivesBoulevard Heights HVAC questions, answered
Yes - the full neighborhood between Carondelet Park and the River Des Peres, roughly ten minutes from our Carondelet shop.
Most often it is duct leakage in runs through unconditioned space, an oversized unit short-cycling, or both. We test and fix the actual cause rather than guessing at bigger equipment.
Frequently, yes. Recovered capacity from sealed ducts can change what size system you need - which changes what it costs. We check ducts as part of every replacement estimate.
Ameren Missouri PAYS rebates on qualifying ACs, heat pumps, and mini-splits run through December 31, 2026, and Spire pays $200-$300 on qualifying gas furnaces and boilers installed by a licensed contractor. We verify eligibility at your estimate.
Yes - financing options are available for qualifying homeowners, and we walk you through them alongside current rebates so you see the real net cost.
More South St. Louis neighborhoods we serve
Need heating or cooling help in Boulevard Heights?
Family-owned, union-trained, and minutes away. Get a free estimate from the crew that has served South St. Louis since 1984.