HVAC Services in Holly Hills
Blocks from our S Broadway shop, Holly Hills' brick Tudors and Colonial Revivals around Carondelet Park deserve HVAC work as careful as the neighborhood's architecture.
Degenhardt Heating and Cooling services Holly Hills from our shop just east of the neighborhood on S Broadway - repairs, tune-ups, and full high-efficiency replacements for the brick Tudors, Colonial Revivals, and bungalows that line Holly Hills Boulevard and the streets around Carondelet Park.
Holly Hills was planned in the 1920s as one of South St. Louis's signature park-side neighborhoods, and its housing stock is remarkably intact: solid brick, plaster walls, steep roofs, and original floor plans that were never designed around modern central air.
Cooling 1920s brick Tudors without wrecking their character
A 1920s Holly Hills home usually has a basement furnace and first-generation duct runs that feed the main floor well and the second floor barely. That is why so many owners live with hot upstairs bedrooms every July. We fix the actual cause: balancing or rebuilding duct runs where feasible, and adding ductless heads upstairs where the walls should not be opened.
For replacements, high-efficiency two-stage and inverter systems make a real difference in these homes - steadier temperatures, quieter operation, and meaningful utility savings on 63111/63116 bills.
- 1920s-1930s brick Tudor, Colonial Revival, and bungalow construction
- Second-floor comfort problems from single-zone, basement-fed duct runs
- Inverter and two-stage systems for steadier temps in plaster-walled homes
- Careful installs that respect original architecture and finishes
Serving Holly Hills
Contact us today to discuss your needs. Our team is ready to help.
Popular in Holly Hills
Zip Codes
63111, 63116
What Holly Hills homes actually need
Hot second floors
Single-zone systems fed from the basement leave upstairs bedrooms warm all summer. We balance ducts, add returns, or install ductless heads upstairs - whichever the house actually supports.
Plaster walls and finishes
Fishing new duct or line sets through plaster and brick takes planning. We route with the least disruption and repair what we touch.
Aging park-side systems
Many Holly Hills systems date to the 1990s and 2000s. We give an honest repair-or-replace verdict backed by our free second opinion program before you spend on a failing unit.
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 incentivesHolly Hills HVAC questions, answered
Yes. Holly Hills, including the blocks around Carondelet Park and Holly Hills Boulevard, is core Degenhardt territory - our shop is minutes away on S Broadway.
Usually. Options include duct balancing, added returns, or a small ductless head for the second floor. We diagnose which one fits your house before recommending anything.
Qualifying 15.2+ SEER2 central ACs can be eligible for up to $1,000 through Ameren Missouri's PAYS program (valid through December 31, 2026), and qualifying furnaces for Spire rebates. We confirm eligibility at your estimate.
Yes. Modern inverter systems like the Daikin FIT run far quieter than older single-stage units, and we place and mount outdoor units with neighbors in mind.
Yes - our maintenance plan covers seasonal tune-ups that catch small issues before they become July no-cool calls. It is the cheapest insurance an older system can have.
More South St. Louis neighborhoods we serve
Need heating or cooling help in Holly Hills?
Family-owned, union-trained, and minutes away. Get a free estimate from the crew that has served South St. Louis since 1984.