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50+ Years
experience
Emergency
services
Trusted HVAC Services in Dundas, MN
Streitz Heating & Cooling has been serving Dundas, Northfield, and surrounding Minnesota communities since 1950 with expert HVAC services. Our team provides 24/7 emergency heating and cooling repairs, system installations, and maintenance while prioritizing customer satisfaction. We service all major brands and specialize in efficient systems designed for Minnesota's climate. Our licensed technicians deliver honest service, skilled workmanship, and affordable pricing. With decades of experience, we've built a reputation for reliable solutions tailored to local needs.

We focus on improving home comfort through heating, cooling, and indoor air quality services. Our commitment to fair pricing includes competitive rates and honest estimates. We serve residential and commercial clients across southern Minnesota. Our team maintains up-to-date training on the latest HVAC technology. We take pride in being a trusted local contractor with long-term team members dedicated to community service.
Services
AC Repair Furnace Installation Duct Cleaning Heat Pump Services Thermostat Upgrades Geothermal Systems Indoor Air Quality Emergency Repairs
Details
  • Year established: 1950
Highlights and features
  • We offer 24/7 emergency HVAC repair services for urgent needs
  • Our team has over 70 years of combined experience serving Minnesota
  • We provide transparent pricing with no hidden fees
  • We service all major HVAC brands with precision care
  • Our technicians receive ongoing training on the latest HVAC technology
What people say
Excellent communication Friendly technicians Efficient service On-time arrivals Clear pricing
Services
AC Repair
Our AC repair service addresses cooling system emergencies and performance issues with prompt diagnostics and lasting solutions. We service all brands and ensure efficient operation through proper refrigerant levels, component replacement, and system optimization. Our technicians arrive equipped to handle common problems like compressor failures, refrigerant leaks, and electrical malfunctions while maintaining clean workspaces and clear communication throughout the repair process.
Furnace Installation
We specialize in furnace installation for reliable winter heating performance. Our process includes system sizing analysis, energy efficiency evaluation, and proper venting configuration to ensure safe, effective operation. We work with high-efficiency models that reduce energy consumption while maintaining consistent indoor temperatures. Our installation team follows manufacturer specifications and local building codes to guarantee proper functionality and long-term reliability for residential heating needs.
Duct Cleaning
Our duct cleaning service improves indoor air quality and HVAC efficiency by removing accumulated dust, allergens, and debris from ventilation systems. Using specialized equipment, we thoroughly clean supply and return ducts while protecting home interiors from contamination. The process includes system inspection, agitation of particulate matter, and HEPA-filtered vacuum extraction to restore optimal airflow and reduce airborne irritants in residential environments.
Heat Pump Services
We provide comprehensive heat pump services including installation, repair, and maintenance for both air-source and geothermal systems. Our technicians optimize system performance through refrigerant charge verification, coil cleaning, and defrost cycle testing. We specialize in matching equipment capacity to home requirements while ensuring proper electrical connections and thermostat integration for efficient year-round temperature control.
Indoor Air Quality
Our indoor air quality solutions address humidity control, ventilation, and pollutant removal to create healthier living environments. Services include whole-home humidifier installation, air exchanger setup, and filtration system upgrades. We use diagnostic tools to identify air quality issues and recommend targeted solutions that work with existing HVAC systems to reduce allergens, control moisture levels, and improve overall indoor comfort.
People
Andy Streitz
President & Owner
Andy Streitz leads with over 40 years of HVAC experience, maintaining the company's founding commitment to honest service and technical excellence. He oversees daily operations while ensuring customer satisfaction remains the top priority.
Nick Streitz
Vice President & Owner
Nick Streitz manages business development and service quality assurance, continuing the family tradition of reliable HVAC solutions. He focuses on technician training and implementing modern service standards while honoring core values.
Questions
Do you offer emergency HVAC services?
Yes, we provide 24/7 emergency HVAC repair services for heating and cooling system failures at any hour.
What areas do you service?
We serve Dundas, Northfield, Faribault, and 10+ surrounding Minnesota communities with prompt HVAC solutions.
Are financing options available?
Yes, we offer financing options for HVAC system replacements and major repairs to qualified customers.
What HVAC brands do you service?
We service all major HVAC brands for repair, maintenance, and installation services without brand restrictions.
Do you provide system maintenance plans?
Yes, we offer seasonal maintenance agreements for both heating and cooling systems to ensure optimal performance.
How quickly can you respond to service calls?
Our average response time is under 2 hours for emergency repairs during business hours.
Reviews (5)
Brian Cohn
Jun 13, 2022 Report
I've had Streitz perform regular maintenance and repair work on my home heating and cooling system (including installing a new system when needed) for about 20 years. Their people are friendly, professional, clean and competent. They are good about telling me when more than routine maintenance will be required so that I can plan for it.
Chris Noe
May 28, 2022 Report
The Streitz team are top notch professionals. They replaced or furnace & AC several years ago and have done semi-annual maintenance since then. Their maintenance program is reasonably priced and their technicians are courteous and clean. We highly recommend them! Services: Install thermostat, Heating system installation, HVAC system maintenance, A/C system maintenance, Install AC
Stephen Hochheiser
May 24, 2022 Report
We have used Streitz for a number of years to perform annual maintenance on our HVAC system. Their communication is clear and timely. Their service people are professional and courteous and we've never felt pressured to purchase anything unnecessarily. We would definitely recommend them. Service: HVAC system maintenance
Cathy Larson
May 13, 2022 Report
For years the Streitz crew has done an excellent job of maintaining our HVAC system. When our older furnace failed this spring, they quickly fixed the problem and then applied the repair cost to purchasing a new system. Dan patiently answered our questions about the repair and purchase. The furnace installation went smoothly so the house remained comfortable. They also went to extra efforts to locate and install a compatible AC unit before a sudden heat wave.
Corrine Slaughter
May 11, 2022 Report
We always trust Streitz to do a thorough and timely job on our furnace and air conditioner. We just had our spring checkup. Dan did a great job. He's always on time, willing to answer questions, respectful when going in and out of the house, and is an all-around great employee. Thank you. Service: A/C system maintenance