Welcome to

Day Plumbing,

Heating & Cooling

(507) 235-9009


Quality Service

Quality Products

Quality Care

Day Plumbing, Heating & Cooling is family-owned and dedicated to helping homeowners enjoy safe, comfortable homes.  We offer the highest quality service, products, and care for both residential and commercial clients in the greater Fairmont area.  Our experienced factory-trained professionals can help you with all your Plumbing, Heating and Cooling needs, Kitchen and Bathroom Remodeling, and New Construction. With thousands of happy customers, we know our success depends on you and we appreciate your business!


Our People


Be comfortable in your own home


Are you dreaming of building a new home or remodeling the home you love?  Day Plumbing, Heating & Cooling would like to help make your home the warm, comfortable environment of your dreams with a full line of Bryant heating and cooling products.  Improve the air quality with a new air purifier or comfort and efficiency with a new furnace and air conditioner. Our technicians also install in-floor radiant heating, fireplaces, water conditioning and reverse osmosis drinking systems.

Looking to professionally remodel your kitchen or bathroom?  Day Plumbing, Heating & Cooling will assist you with your remodel project from start to finish.  You will conveniently find everything you need without having to drive and worry about delivery.  Delta, Kohler, Onyx shower surround and custom vanity tops and more!

Day Plumbing, Heating & Cooling technicians are available 24/7 to cover your emergency service needs.  Our hydro-jetter drain cleaning service can eliminate clogs quickly and have everything flowing smoothly in no time.

What People are saying

For many years my family has relied on Day plumbing for all of our commercial needs and residential needs. You can trust their knowledgeable and experienced staff with any of you plumbing, cooling and heating needs.

– Zach Gerhardt

Frequently Asked Questions

How often should I replace my furnace filter?

To help avoid costly repairs and maximize performance, recommended intervals are as follows: one-inch disposable filters should be replaced monthly.  Two-inch filters should be changed every two to three months. Five-inch MERV 8 filters we typically include with most of our furnace installations should be changed every six months. If you have allergies, smoke indoors, burn candles, have pets, or have construction in your neighborhood, it’s likely you’ll need to replace filters more often. Many thermostats included with new installations will automatically tell you when to change your filter.

What is the optimal humidity level for my house?

Every house is different, but an ideal humidity level for winter is 30-40%. Higher humidity in the winter makes your home feel warmer while your thermostat setting is lower. Optimal indoor humidity in the summer is 45-50%.  Reducing your humidity during the summer provides that same effect of added comfort without adjusting your thermostat to a lower temperature. A whole-home humidifier and dehumidifier are the best options for staying economically comfortable all year long.

How often do I need to have my heating and cooling equipment serviced?

Annual maintenance by a qualified company is recommended to promote energy efficiency, help prevent breakdowns, and extend equipment life.  It is always a good idea to test your system before you really need it to avoid emergencies.  Call us for service before extreme weather hits.

Does it matter what time of year my furnace or air conditioner is serviced?

No. We can perform service at any point during the year. However, since it’s an outdoor unit, it’s best to have an air conditioning system serviced when it’s at least 70 degrees outside.


When do I know it’s time to replace my furnace or air conditioner?

With proper maintenance, most furnaces last 16 to 18 years. Older systems are less energy-efficient and more costly in terms of repairs, replacement parts, and utility bills. If your heating system is over 10 years old it may last another 10 years if you do regular maintenance and minor repairs, but watch for slower warming, reduced airflow, higher energy bills, strange odors, and loud noises. These may be signs to consider a new furnace installation.

To fix or replace? As a general guideline, consider a replacement if the equipment is beyond three-quarters of its life expectancy and repairs will cost more than a third of the replacement. Also consider the cost to operate it each month because a newer, more efficient unit could save you money over time.


When is the best time to replace my furnace?

If you wait until your furnace dies to consider replacing it – it becomes an emergency- usually at the least opportune time. In a rush to restore heat, you may not carefully weigh all your options for service and savings, plus it will be more difficult to schedule an install in a timely manner. If you have annual maintenance performed, we’ll be able to catch early warning signs and give you recommendations for a new installation before you have an emergency.

Get a Free Quote -or- Ask a Question

Operating Hours

Monday – Friday

7:30 AM – 5:30 PM

*24 Hour Emergency Service Available


1410 E. Blue Earth Avenue

Fairmont, MN 56031