HVAC Services in Whitefish Bay, WI

Classic Whitefish Bay Homes, Modern Comfort

Whitefish Bay's early-1900s Tudors, colonials, and bungalows are the kind of housing stock where HVAC shortcuts show immediately. Radiator heat is still common, cooling is often a retrofit, and every mechanical room tells a renovation story. On Time Heating & Cooling works on all of it — and answers 24/7 at (262) 671-8999.

Owner Shane Herro founded On Time in 2019 and still trains and works alongside the crew. Homeowners have rated the company 5.0★ across 480+ Google reviews.

Services for the Bay

• Boiler repair, replacement & maintenance — radiator homes done right
• Furnace service for forced-air conversions
• Air conditioning — including retrofit strategies for homes never built for ducts
• Ductless mini-splits — quiet zoned cooling without plaster demolition
• Heat pumps, water heaters & tankless
• Air quality & duct cleaning

Retrofit Cooling Without Wrecking Character

Plaster walls and original trim deserve better than hacked-in ductwork. Where conventional ducts do not fit, we design around ductless heads or compact zoned systems, keep radiator loops as the heating backbone when they are worth keeping, and size everything from a real load calculation — oversized AC in humid lake air means clammy rooms and short-cycling equipment.

Clear Choices, Real Support

Second opinions are free: send any competing quote through our Free Second Opinion. Qualified buyers can use 0% intro APR Wisetack financing, and the On The Dot Club keeps aging systems maintained with priority dispatch.

Book Whitefish Bay Service

Call (262) 671-8999 or book online. We also serve Shorewood, Fox Point, and Glendale.