Virginia & Maryland Heating, Air Conditioning & Plumbing
    • Top 5 Reasons to Change Your Air Filter

      Most homeowners know that their HVAC system requires an air filter to function properly. However, what you may not know is that it is important to change that air filter every 2-3 months if you want ...

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    • Why You Need a Concrete Slab Under Your Outdoor AC Unit

      Today we’re going to be talking about one of the most neglected parts of outdoor AC maintenance: taking care of the unit’s concrete slab. While you may not think about this as essential to your AC’s ...

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    • What You Need to Know About the Freon Ban

      If you have been following along with recent developments in the HVAC industry at all, you may already know that the Environmental Protection Agency (EPA) has designated R22 refrigerant, aka Freon, as ...

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    • 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 ...

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    • Top 5 Reasons to Change Your Air Filter

      Most homeowners know that their HVAC system requires an air filter to function properly. However, what you may not know is that it is important to change that air filter every 2-3 months if you want ...

      Read More
    • Do UV Lights Improve Indoor Air Quality?

      In recent years, improving indoor air quality has become a chief concern of HVAC technicians. In this pursuit, one question we get asked a lot is, “do UV lights improve air quality?” The short answer ...

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  • DIY
    • Is It Safe to Use Chemical Drain Cleaners?

      Grease, soap, hair, food remnants: there are many ways for your drains to get clogged. And as all skilled plumbers will tell you, there are many ways to deal with clogs, too. Yet there’s one DIY ...

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    • DIY Tip: How to Replace a Worn-Out Toilet Flapper

      If you own a home, you know just how many things can go wrong with your plumbing. However, while most things require a professional’s knowledge, experience, and tools to fix properly, there are ...

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    • 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 ...

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    • Top 5 Reasons to Change Your Air Filter

      Most homeowners know that their HVAC system requires an air filter to function properly. However, what you may not know is that it is important to change that air filter every 2-3 months if you want ...

      Read More
    • Why Ductless HVAC is Perfect for Older Homes

      Virginia has a wide variety of homes which are historic in nature, having been around for 100 years or more in some cases! Those who own these homes are often drawn to them for the idea of the history ...

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    • Three New Year's HVAC Resolutions

      With the holidays upon us, it’s only a matter of time before the year 2019 is upon us, and that means it’s time to start thinking about your New Year’s resolutions. Every year, people take this ...

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    • 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
    • Do UV Lights Improve Indoor Air Quality?

      In recent years, improving indoor air quality has become a chief concern of HVAC technicians. In this pursuit, one question we get asked a lot is, “do UV lights improve air quality?” The short answer ...

      Read More
    • Five Things Not to Put Down Your Garbage Disposal

      Your garbage disposal is an incredibly important appliance that gives you a safe and sanitary way to dispose of food waste. Garbage disposals cut down on pest invasions, keep household odors to a ...

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    • 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 ...

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    • 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 ...

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    • 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 ...

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    • 3 Signs There’s Something Wrong With Your Bathtub

      Bathroom plumbing is tricky. Although your toilet is probably the bathroom appliance that gets the most attention, and which in all fairness does require the most maintenance, all of your bathroom ...

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    • What's That Noise Coming from My Plumbing?

      Everyone’s plumbing makes sounds sometimes. Depending on how old your home is, and what kind of equipment you have, it is not uncommon to hear many sounds coming from your pipes and drains. Yet our ...

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    • 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
    • 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 ...

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    • Four Benefits of a Programmable Thermostat for Businesses

      If you run a business, you know how important it is to keep the temperature at a comfortable level. Whether you want your customers to feel warm during winter and cool during summer, or you need to ...

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    • Why Is My Thermostat Blank?

      It’s a sweltering summer afternoon and you head to your thermostat to fire up your air conditioner. However, you get there only to find out that the screen is completely blank, and no amount of button ...

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    • 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 ...

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    • Signs it's Time to Replace Your Water Heater

      A water heater failure is a serious issue for homeowners. The lack of hot water makes it difficult to bathe, do laundry, or clean dishes, which can be a major nuisance. However, a tank leak or burst ...

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