Providing our Wilmington, DE area customers and homeowners with our HVAC help and resource blog for the latest information on modern heating and air conditioning systems is our top goal at William G. Day Company. It is our firm belief that we can truly help our customers understand the inner workings of their home HVAC systems and become more conscious about maintenance and repair issues through our blog articles that we update throughout the month. Enjoy our blog, we hope the articles will be informative and helpful, but if you ever have any questions about your HVAC systems you can feel free to call us and our expert HVAC technicians will answer all of your questions.


What Size Heat Pump Do I Need?

Heat pumps are devices found in many HVAC (heating, ventilation and air conditioning) systems throughout the country. Instead of generating their own heat, these devices pull naturally occurring heat from the surrounding environment. A heat pump only serves its proper function when it’s the right size for your home. When determining the size of the

Solution for Cleaner Indoor Air Quality

Making sure the Air you breathe in everyday is vital to having a Healthy life, let us come to your home or office so we can make sure the HVAC system you have it working perfectly. We service Hockessin, Newark and Wilmington. Give us a call and we will make a appointment to come to


Toilet Tank Condensation Problems And Fixes

Every home experiences sweaty toilets over the summer. It happens due to the presence of warm and moist air in the bathroom. Because the tank holds cold water, any warm, moist air that lands on its surface condenses. The water drips to the toilet flooring to from puddles. This creates a mess and possibly damage

Heat Pump Freezing Up? What Do You Do?

At some point, a heat pump may develop ice or frost on its outdoor coils. There are a number of factors that could cause heat pump freeze up. Though some of the problems are easy to fix, it may be necessary to have the equipment repaired by a technician for more complex issues. What Causes

Water heater

Tips For Winterizing Your Water Heater

If you are planning on taking a vacation in the winter and temperatures go below freezing in your area, you should consider winterizing your water heater to prevent it from freezing over or possibly breaking. It is not a difficult task, however, all the instructions must be adhered to, especially the part that requires you

Carrier Products

Why Choose A Carrier Factory Authorized Dealer?

You are in a fix. You want to buy an expensive HVAC system for your home and you are wondering where to buy it from. The local dealer is offering a great rate. In fact, he has several companies and products and the discounts on the products are impressive. On the other hand, you also


Steps To Take To Get Rid Of Drain Flies

Drain flies are disgusting. The small insects are not just obnoxious, but they are also a sign that your drains aren’t clean. Drain flies are very hard to eliminate, especially if you don’t already know how to do so. Fortunately, eliminating the flies is rather easy- you just need a little time and the right

Energy House

Does Insulation Really Help Keep Your Home Cool?

You may be wondering if adding more home insulation will really help keep your it cool. The answer is simple. Yes, your home will be much more comfortable when the right amount of insulation is installed in the appropriate places. Another benefit is that it will help reduce energy bills. Summer months can be very

2015 Water Heater Efficiency Regulation Changes

The water regulation changes which affect all heaters produced after April 16, 2015 are aimed at increasing efficiency up to 30 percent. This means that if your efficiency is not above 0.82, you will be affected. There are several steps that manufacturers will have to take so as to ensure that you comply. Here are

Interior Doors Air Flow

Think Twice Before Closing Interior Doors In Your Home

We have probably all done it from time to time — closed the door to one or two rooms that aren’t in use in order to increase energy efficiency. After all, why heat or cool a room if no one will use it regularly? Yet, is it really a good idea? The answer is no,