Call Now
Website
Call
Business Details
37 Years
experience
Emergency
services
Your Trusted Milwaukee HVAC Experts for Heating, Cooling & Air Quality
Nimmer Heating & Air Conditioning is a family-owned business that has served Southeastern Wisconsin homeowners for over 35 years. Our NATE-certified technicians deliver professional heating, cooling, and indoor air quality solutions, emphasizing upfront pricing and customer satisfaction. We hold an A+ rating with the Better Business Bureau and are a Bryant Factory Authorized Dealer, reflecting our commitment to quality and reliability. Our team prioritizes community involvement, supporting local charities and youth apprenticeship programs. With 24/7 emergency services and a focus on energy-efficient systems, we ensure homes remain comfortable year-round.

Our expertise spans installations, repairs, and maintenance for all major HVAC brands. We guarantee satisfaction through transparent communication and no-pressure consultations. Our dedication to excellence has earned us the 2025 Milwaukee Top Choice award and Bryants Medal of Excellence. We maintain manufacturer warranties by adhering to annual maintenance standards. Our technicians undergo continuous training to stay at the forefront of HVAC technology and best practices.
Services
Air Conditioning Repair Boiler Installation Furnace Maintenance Indoor Air Quality Heating Repair Maintenance Plans Ductless Systems Emergency Services Thermostat Installation Carbon Monoxide Detection
Details
  • Year established: 1989
Highlights and features
  • Family-owned and locally-operated since 1989
  • Up-front flat-rate pricing with no hidden fees
  • 24/7 emergency HVAC services available
  • BBB Accredited with an A+ Rating
  • NATE-certified technicians for expert installations
Associations and certifications
  • BBB
  • NATE
  • Bryant Factory Authorized Dealer
What people say
Excellent service Professional and thorough Prompt and friendly communication No pressure to purchase Saved us money
Services
Air Conditioning Repair
Our NATE-certified technicians provide prompt air conditioning repair services for emergency and routine issues. We service all brands and ensure systems operate efficiently during Wisconsin summers. Regular maintenance prevents breakdowns and extends equipment lifespan.
Boiler Installation
We install and repair high-efficiency boilers designed for durability and energy savings. Our experts assess home needs to recommend optimal heating solutions. Annual maintenance ensures safety and compliance with warranty requirements.
Furnace Maintenance
Professional furnace tune-ups improve efficiency and prevent winter breakdowns. Our technicians inspect components, clean systems, and ensure safe operation. Maintenance plans offer cost savings and priority service scheduling.
Indoor Air Quality
We install advanced air filtration and humidity control systems to reduce allergens and pollutants. Solutions include UV lights, dehumidifiers, and ventilation systems for healthier home environments.
Emergency HVAC Service
Available 24 hours daily for urgent heating and cooling failures. Our rapid response team addresses critical issues like carbon monoxide leaks and system failures to restore comfort immediately.
Questions
Do you offer financing options for HVAC installations?
Yes, we provide 0% interest financing up to 60 months for qualifying customers.
Why is annual HVAC maintenance important?
Annual maintenance keeps warranties valid, improves efficiency, and prevents unexpected breakdowns.
What areas do you service?
We serve Milwaukee County and Waukesha County, including Brookfield, West Allis, and Waukesha.
Are your technicians certified?
All technicians are NATE-certified for expert installation and repair of HVAC systems.
Do you handle emergency repairs?
Yes, we provide 24/7 emergency HVAC services for urgent heating and cooling issues.
Can I schedule maintenance without being home?
Yes, we accommodate keycodes or secure access arrangements for maintenance visits.