Virginia & Maryland Heating, Air Conditioning & Plumbing
    • Is Your Air Conditioner Too Big for Your Home?

      Why Oversized HVAC Equipment is a Bad Idea The bigger your air conditioner is, the more cool air it provides, right? Wrong! Some HVAC installers may claim that an oversized unit will provide a higher ...

      Read More
    • How to Save on AC Costs This Summer

      Save Yourself the Hassle of High Utility Bills with These Simple Tricks With summer swiftly arriving to the east coast, we know that you’re preparing to face the oncoming heat. Your best weapon ...

      Read More
    • Benefits‌ ‌of‌ ‌Changing‌ ‌Your‌ AC‌ ‌Filter‌ ‌

      3 Reasons to Change Your Air Filter this Spring With Memorial Day and summer weather right around the corner, most homeowners will start using their air conditioners daily to keep their homes cool. As ...

      Read More
    • How to Fight the Summer Humidity

      Tips and Tricks to Help You Stay Comfortable in Any Humidity Summer heat alone can be bad enough, but when it comes with high humidity, it can make your whole family extremely uncomfortable, even with ...

      Read More
    • Benefits‌ ‌of‌ ‌Changing‌ ‌Your‌ AC‌ ‌Filter‌ ‌

      3 Reasons to Change Your Air Filter this Spring With Memorial Day and summer weather right around the corner, most homeowners will start using their air conditioners daily to keep their homes cool. As ...

      Read More
    • Give the Gift of Better Indoor Air Quality This Christmas

      If you think that air quality hazards disappear with the summer humidity, think again. While your home may be more vulnerable to certain allergens in the summertime, there are plenty of indoor air ...

      Read More
  • DIY
    • Fall Plumbing Maintenance

      Preparing Your Pipes for the Colder Months The fall months are a great time to make sure your home is prepared for the winter. That means making sure your heater is ready to go, bringing out the ...

      Read More
    • Is Your Thermostat Accurate?

      Make Sure Your HVAC System Knows What’s Going on in Your Home Your thermostat is the control center for your entire heating and cooling system. If it’s not able to accurately read the temperature ...

      Read More
    • 7 Ways to Warm Up Your Home This Winter

      With snow and rain constantly in the forecast this time of year, your home should be the ultimate respite. We’re sharing some tips and tricks you can use that will keep you warm all winter long. Keep ...

      Read More
    • How Your HVAC System Can Contribute to Fall Allergies

      With fall fully underway, you have probably already adjusted your HVAC usage to fit with the season. However, as the weather gets colder and you use your AC unit less and your furnace or other heating ...

      Read More
    • Four Common Problems With Your Ductwork

      Picture this: it’s a blistering summer day, you fire up your air conditioner to get rid of the stuffiness in your home, and you hear your system set to work. However, a couple of hours pass and your ...

      Read More
    • Should Your Winter Preparations Include a Heater Replacement?

      How to Tell When Your Heater Isn’t Prepared for the Oncoming Chill Preparing your home for winter is no small task, especially if you live in an area where snowfall and freezing temperatures are ...

      Read More
    • Is Your Home Properly Insulated?

      Keeping your home comfortable requires more than a good HVAC unit. With 42% of your utility bill going to heating and cooling your home, it is important to have support systems in place that keep hot ...

      Read More
    • 5 Reasons Your Furnace Is Blowing Cold Air

      After a long winter day, there is nothing more relaxing than coming home to a warm house. Alternatively, there is nothing more frustrating than turning on your furnace expecting a warm blanket around ...

      Read More
    • Should Your Winter Preparations Include a Heater Replacement?

      How to Tell When Your Heater Isn’t Prepared for the Oncoming Chill Preparing your home for winter is no small task, especially if you live in an area where snowfall and freezing temperatures are ...

      Read More
    • Is Your Thermostat Accurate?

      Make Sure Your HVAC System Knows What’s Going on in Your Home Your thermostat is the control center for your entire heating and cooling system. If it’s not able to accurately read the temperature ...

      Read More
    • Where’s That Noise Coming From?

      Keep an Ear Open for Warning Signs Your home’s HVAC and plumbing systems are very different, both in the ways they work and in the ways they tend to malfunction. However, they have one important thing ...

      Read More
    • How to Get Your Plumbing System Ready for Fall

      Fall is officially here, and while that may signal different things to many people (Halloween is just around the corner, football season is in full swing, it’s time to drink copious amounts of pumpkin ...

      Read More
    • Donmar Heating, Cooling & Plumbing Receives Carrier’s 2019 President’s Award!

      At Donmar Heating, Cooling & Plumbing, we’ve always sought to be the company who exemplifies the best in workmanship, friendliness, and customer service. For more than 30 years, we’ve developed a ...

      Read More
    • Donmar Company Heating & Cooling Selected for 2017 President's Award

      Donmar Company Heating & Cooling is proud to share our latest accomplishment. Carrier, one of the leading and most widely known brands of home services appliances—from heaters, air conditioners, and ...

      Read More
    • Copper VS Plastic Piping

      Understanding Your Piping Options It happens to all of us eventually – the need to replace your pipes. Whether it’s just one or two pipes or your entire plumbing system, at some point, you’ll find ...

      Read More
    • What’s Blocking Your Pipes?

      No One Likes Dealing with Clogs When your drains slow down, your toilet has longer flush times, and something doesn’t smell right, you may be dealing with a blockage hidden within your plumbing ...

      Read More
    • Fall Plumbing Maintenance

      Preparing Your Pipes for the Colder Months The fall months are a great time to make sure your home is prepared for the winter. That means making sure your heater is ready to go, bringing out the ...

      Read More
    • Is Your Thermostat Costing You Money?

      How Old and Misused Thermostats can Create Higher Utility Bills We spend a lot of time and money making sure that our HVAC equipment is working effectively and efficiently. After all, a fully ...

      Read More
    • Is Your Thermostat Accurate?

      Make Sure Your HVAC System Knows What’s Going on in Your Home Your thermostat is the control center for your entire heating and cooling system. If it’s not able to accurately read the temperature ...

      Read More
    • What Is a Smart Thermostat?

      There’s been a lot of talk about smart thermostats lately; how popular they are , how they make great gifts , etc. But what is a smart thermostat, exactly? Despite this narrative that they’re all the ...

      Read More
    • Should Your Winter Preparations Include a Heater Replacement?

      How to Tell When Your Heater Isn’t Prepared for the Oncoming Chill Preparing your home for winter is no small task, especially if you live in an area where snowfall and freezing temperatures are ...

      Read More
    • Is Your Thermostat Costing You Money?

      How Old and Misused Thermostats can Create Higher Utility Bills We spend a lot of time and money making sure that our HVAC equipment is working effectively and efficiently. After all, a fully ...

      Read More
    • Fall Plumbing Maintenance

      Preparing Your Pipes for the Colder Months The fall months are a great time to make sure your home is prepared for the winter. That means making sure your heater is ready to go, bringing out the ...

      Read More
    • Fall Plumbing Maintenance

      Preparing Your Pipes for the Colder Months The fall months are a great time to make sure your home is prepared for the winter. That means making sure your heater is ready to go, bringing out the ...

      Read More
    • Where’s That Noise Coming From?

      Keep an Ear Open for Warning Signs Your home’s HVAC and plumbing systems are very different, both in the ways they work and in the ways they tend to malfunction. However, they have one important thing ...

      Read More
    • Should I Turn My Water Heater Up?

      Water heaters provide you with temperature-controlled water throughout the year. In general, most manufacturers recommend keeping your water heater set to 120 degrees Fahrenheit to help prevent ...

      Read More