Nimmer Heating & Air Conditioning, Inc.

Nimmer Heating & Air Conditioning has served southeastern Wisconsin homeowners for over three decades as a family-owned operation, now holding a 4.9-star rating across 955 reviews and an A+ accreditation from the Better Business Bureau. Based in Milwaukee, the company dispatches NATE-certified technicians throughout the broader metro area, including Shorewood, Whitefish Bay, Fox Point, and West Allis. This contractor operates as a Bryant Factory Authorized Dealer and Circle of Champions member, offering both installation and ongoing service contracts for residential heating and cooling systems.

What distinguishes Nimmer from neighboring HVAC contractors is their multi-brand expertise paired with upfront flat-rate pricing and a no-pressure sales approach guaranteed in writing. Their indoor air quality division specializes in whole-home humidifiers, air purifiers, duct sealing, and energy recovery ventilators, addressing Wisconsin's seasonal humidity challenges. The company handles standard and high-efficiency boilers, heat pumps, radiant in-floor heating, and ductless mini-split systems, with a particular depth in Bryant . Service calls include emergency repair, and the office provides 0% interest financing through 60-month terms for qualified homeowners.

Recent customer reviews illuminate the team's capabilities beyond routine maintenance. When August 2025 flooding devastated Milwaukee basements, reviewer Aaron noted Nimmer dispatched technician Joe DeRose within days to assess damage to a 1993 furnace and AC system, with sales representative Brian Nowak presenting multiple customizable installation packages. Three weeks later, installers Pat Kuhlmeier and Josh Jackson completed the Bryant replacement with new ductwork, permits, and city inspection paperwork coordinated by office manager Melinda Erdman. Another reviewer praised same-day scheduling for a diagnostic call, highlighting technician Joe's thorough explanation of repair options at reasonable cost.