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McLean, VA HVAC & Plumbing
McLean's best HVAC and Plumbing Company. 24/7 Emergency Repairs and Financing Available.
At C.D. Shanahan's Heating, Cooling, & Plumbing we offer top-quality residential and commercial HVAC and plumbing services in McLean, VA. Our team of experts is capable and ready to tackle all of your HVAC and plumbing needs. Whether you need repairs, maintenance, or installations, you can count on us to work closely with you to deliver the best solutions, with satisfaction guaranteed!
What Our Customers Say About Our Service
At C.D. Shanahan's, we do all we can to provide the best service to our customers. From competitive price matching to the quality of our work, we strive to be the best in all areas so you get the kind of service you deserve.
 
Our commitment to top-notch customer service has earned us hundreds of 5-star reviews from all over the DMV. Read our reviews to see why our customers think we provide the best plumbing and HVAC services in McLean.
Our office had an emergency and their team responded same day. Ian was knowledgeable, professional, prompt and proficient. He even came back the next day to change out our filters for us and made this stressful situation a breeze. Highly recommend.
Courtney B.Courtney B.Source: Google | May 2023
Dan and Dillon did a wonderful job with the installation of our dual fuel Trane system with heat pump, coil, gas furnace, air filter and humidifier taking extra steps to get everything to fit snugly in a very tight space including modification for the return (air supply) - media filter interface. And the owner Connor walked me through a dozen or so emails to answer all my questions prior to purchase and installation. High fives all around!
Sam B.Sam B.Source: Google | June 2023
We had several plumbing issues and within 24 hours, C.D. Shanahan sent out 3 technicians to solve all of the issues. They were all professional, knowledgeable, and prompt. After having an extremely negative experience with another company this same week, they were exactly what you would hope to have when paying for plumbing services. Highly recommend.
Eidith C.Eidith C.Source: Google | June 2023
Air Conditioning Services
Beat the heat with the best residential and commercial A/C services in McLean, VA. Our team of skilled HVAC technicians can tackle any A/C needs you might have, to keep your home or commercial property comfortable. Count on us to deliver reliable A/C repairs with a quick turnaround time at competitive prices. With our comprehensive A/C maintenance services, you can avoid costly breakdowns, save money on energy bills, and extend the lifespan of your cooling system.
 
Whether you need a brand-new A/C unit installed or want to upgrade your current unit, we've got you covered. We are authorized A/C unit suppliers and can help you choose the perfect unit for your home or business cooling needs.
 	 	 	 
 	 	 	 
Air Conditioning FAQs
How often should I schedule AC maintenance?You should schedule professional AC maintenance at least once a year in the Spring to ensure your unit works at its best through the summer. This will save you money on energy bills and extend the lifespan of your unit, among other HVAC maintenance benefits.
How can I tell if my AC needs to be repaired?If you notice your AC isn't cooling properly, the airflow is weak, you hear unusual or loud noises, you smell unpleasant odors, or excessive energy bills we recommend reaching out to an HVAC technician to diagnose your unit.

Get in touch with us for one-time AC service or sign up for our maintenance plan for stress-free service at discounted prices.
How long do AC units last?The average lifespan of an AC unit is 10 to 15 years. With regular maintenance and mindful usage, it's possible to extend its longevity over 15 years but you might start to experience more frequent breakdowns.
How much do AC installations cost?The cost of having an AC unit installed depends on several factors, including the size of the unit, its efficiency rating, included features, and the complexity of the installation. We provide free estimates for all installations ensuring transparency and allowing you to have a clear understanding of the costs before making any decisions. No surprises!

We offer financing to help you afford your new system in the event of an emergency.
What should I do if my AC isn't working?If your AC isn't working, there are a few things you can do before contacting an HVAC professional. Some common issues you can check for include dirty air filters, a tripped breaker in your electrical panel, or a switched-off thermostat.

You can perform a quick inspection on your own. However, if you encounter any issues, we don't recommend trying to troubleshoot any further. There is the potential you'll just make the problem worse costing you more money. Get in touch with us and we will promptly diagnose your system and get your AC working again.
Heating Services
At C.D. Shanahan's, we're here to help our customers stay warm and cozy during the chilly fall and winter seasons in Northern, VA. Our dedicated team of HVAC experts deliver reliable and quick heating repair, maintenance, and installation services for homes and businesses in McLean, Virginia.
 
When it comes to winter comfort we've got you covered. Whether it's a simple fix. annual maintenance or a new heater installation, our technicians will get the job done right. As authorized heating unit suppliers, we take pride in offering a wide range of heating units from all the top brands. We'll help you choose the perfect heating system for your home or commercial heating needs.
 	 	 	 
 	 	 	 
Heating FAQs
How often should I schedule heating maintenance?We recommend scheduling your heating maintenance at least once a year in the fall. The best time to schedule your service is in September. If you schedule your service past November, you risk having a breakdown during the peak cold months in Northern Virginia. Preventative maintenance is the best way to catch minor issues before they become a problem in the winter.
How can I tell if my heater needs repairs?There are a few ways to tell if your heater needs repairs. Signs your heater needs repairs can include: your heating is not working well, some areas in your home feel colder than others, strange or loud noises coming from the system, the heater turns on and off frequently, or your energy bills are higher than usual.

If you notice any of these issues, reach out to us for a check-up and repairs for your system.
How long do heating units last?How long a heater will last largely depends on the type of heater and how it is used. Here are the average lifespans for some of the most common types of heating units:

Furnaces: 15-20 years
Heat Pumps: 10-15 years
Boilers: 15-30 years
Electric Heaters: 10-15 years
Radiant Heating: 20-30 years
Ductless Mini-Splits: 15-20 years
How much does it cost to install a new heating system?On average, heating unit installations can cost betweeen $2,000 and $10,000. In some cases, it may be more. The total cost will depend on the type of unit you want, the unit size, and the complexity of the project. For instance, Electric and gas furnaces are generally cheaper to have installed than heat pumps. When choosing a new heating system you should make sure you choose one that adequately meets your needs and is within your budget.

If you need a new heater installed or replaced, we provide free estimates for installations to help you understand how much your service will cost. We'll help you choose the best heater within your budget that will meet your heating needs. We also offer financing to help you pay for your service.
What should I do if my heat isn't working?If your heating system stops working, there are a few simple things you can take to troubleshoot the issue. First, check the thermostat to make sure it's on and set to heating. Next, check that the power supply to the heating system is intact and working correctly. The last thing you can do is look for any visible issues such as tripped breakers or blown fuses in your electrical panel.

If you've taken these steps and are still experiencing heating issues, get in touch with us for a thorough diagnosis and prompt repairs. Our team of experts will investigate the root cause of the issue and get it fixed to get your heater working again.
Annual HVAC Maintenance
Ensure the smooth operation of your HVAC system, avoid costly breakdowns, and save on energy bills with our annual HVAC maintenance services in McLean, VA.
 
Our skilled technicians will thoroughly inspect your heating and cooling systems, identifying any potential issues to prevent them from escalating into major problems. Enjoy even more benefits when you sign up for our HVAC maintenance plan. You'll receive two discounted HVAC inspections annually, ensuring that your HVAC units will be inspected and tuned up to provide a comfortable indoor environment year-round.
 	 	 	 
 	 	 	 
Our comprehensive HVAC inspections include:
  • Air filter inspection
  • Outdoor & indoor coil inspection
  • Gas leak testing
  • Safety controls inspection
  • Wiring and electrical connection inspection
  • Motor and fan inspection
  • Inspection for proper lubrucation
  • Airflow checks
  • Thermostat calibration
  • Overall unit health evaluation
  • Much More!
HVAC Maintenance FAQs
How often should I get my HVAC units serviced?We recommend that our McLean customers schedule their HVAC maintenance twice a year for optimal HVAC performance and to extend the lifespan of their systems. Scheduling maintenance in the spring, around March, will get your AC for the summer. Similarly, scheduling maintenance in the fall, around September, will help get your heating system ready for the winter.

Our HVAC maintenance plan offers a convenient and affordable solution for taking care of your HVAC systems. With our maintenance plan, you'll get two comprehensive HVAC inspections at a discounted price, making it easier and more affordable to maintain your heating and cooling systems.
How does HVAC maintenance help lower my energy bills?Regular HVAC maintenance plays a huge role in improving energy efficiency by finding and fixing any issues that might strain your HVAC systems, ensuring optimal performance. During maintenance, our skilled technicians conduct thorough inspections and clean system components, such as filters, coils, and motors. By removing dirt, debris, and buildup, we get rid of clogs that make your system work harder. We also check refrigerant levels, check for proper airflow, inspect for potential carbon monoxide leaks, and calibrate system controls.

These maintenance tasks help reduce energy waste and help lower your energy bills.
Will HVAC maintenance make my heater and AC last longer?Yes! Regular HVAC maintenance can help make your heating and cooling units last longer. When your HVAC units operate smoothly and without unnecessary stress, you get better efficiency and can avoid major breakdowns. This proactive approach to maintenance will contribute to a longer lifespan for your HVAC units.

Regular maintenance helps keep your HVAC units running efficiently, reducing the risk of major problems that could keep them from lasting as long as they should or could.
How can I tell if my heating system needs maintenance?If you notice any of these issues with your heater we recommend reaching out to a professional for a check-up:

Inconsistent heating - Unusual noises or smells - Higher than usual energy bills - Bad indoor air quality - Your pilot light is yellow - The temperature is slow to heat up - It's been a year or more since your last service
How can I tell if my AC unit needs maintenance?If you notice any of these issues with your AC unit we recommend reaching out to us for a diagnosis:

The AC is blowing hot air - Uneven or poor cooling - Weak airflow - Frequent cycling (turning off and on) - Unusual odors or sounds - Water leaks - High humidity
Indoor Air Quality Services
The air you breathe in your home can impact your comfort and health. Our indoor air quality services help our customers keep the air in their homes year-round. We offer whole-home humidifier and air purifier installation and maintenance to give you more control over your comfort and improve your indoor air quality.
 
Whole-home air purifiers filter out dust, pet dander, allergens, and unpleasant odors leaving you with fresher air. Whole-home humidifiers add the right amount of moisture to the air, making your home more comfortable to live in. These solutions are perfect for homes with seniors, babies, or where anyone has respiratory or allergy issues.
 
Trust us to provide you with the utmost care and expertise in improving your indoor air quality.
Watch these videos to learn how whole-home Air Purifiers and humidifiers work and the benefits they can provide for your home! 
Indoor Air Quality FAQs
What are some of the most common indoor air pollutants?Among the most common indoor air pollutants are dust, pollen, pet dander, mold spores, carbon monoxide, VOCs, and tobacco smoke.

For better air quality, you'll want to keep your home clean and well-ventilated, change your air filters often, control humidity levels, address any leaks or moisture issues quickly, and don't smoke indoors. Having a whole-home air purifier and humidifier helps make keeping your air clean easy. 

(More Info: National Institute of Environmental Health Sciences)
What are the health effects of poor indoor air quality?The indoor air quality in your home can be 2 to 5 times worse than outdoor air since the pollutants in the air are more concentrated. This will be especially true if you have poor airflow and ventilation in your home. 

Indoor air pollution can have various short and long-term effects on human health, as highlighted by reputable sources. The EPA states that these effects may include irritation of the eyes, nose, and throat, headaches, dizziness, fatigue, respiratory diseases, heart disease, and even cancer. The American Lung Association notes that poor indoor air quality can contribute to the development of chronic lung diseases like asthma, with individuals already having lung disease at a higher risk.

Installing a whole-home air purifier can help protect you and your loved ones from issues caused by poor indoor air quality.
How do I know if my indoor air quality is bad?Some signs of poor air quality include lingering musty or unpleasant odors, excessive accumulation of dust, visible mold growth, frequent allergy or asthma symptoms, and general stuffiness or discomfort. If you think the air quality in your home is poor, get in touch with us for professional air quality testing. 
What are the benefits of whole-home air purifiers?By installing an air purifier into your HVAC system, you can effectively eliminate airborne pollutants, allergens, and irritants, resulting in better indoor air quality. The positive impact of improved air quality extends to reducing allergy and asthma symptoms, diminishing unpleasant odors, giving you more control over your comfort, and creating a cleaner living environment for you and your loved ones.
What are the benefits of a whole-home humidifier?Whole-home humidifiers help maintain optimal humidity levels and fight against dry air during the cold winters in McLean. Other benefits include alleviating dry skin issues, reducing respiratory irritation, preventing damage to wood furniture and flooring, and creating a more comfortable environment indoors. A humidifier can enhance your overall well-being and give you more control over of your comfort.
Smart Thermostat Installations
Upgrade your home or office's temperature control with our smart thermostat services. We offer smart thermostat installations in McLean, VA to bring you the latest advancements in technology for enhanced comfort and energy efficiency.
 
With our smart thermostat installations, you'll have full control of your HVAC system from anywhere. Enjoy the convenience of remote temperature adjustments and personalized scheduling, all on your smartphone or smart devices.
 
Get in touch with us to discuss your smart thermostat options today!
 	 	 	 
 	 	 	 
We Install Smart Thermostats from all the most popular brands and more! 
  • Ecobee
  • Nest
  • Emerson
  • Bosch
  • Google Home
Plumbing Services
We understand how stressful it can be to deal with leaks, sewage smells, expensive water bills, and other plumbing problems. We offer a wide range of reliable commercial and residential plumbing services in McLean, VA to help you fix your plumbing issues.
 
Whether you need plumbing repairs, installation, or preventative maintenance you can trust our team of licensed plumbers to get it done for you. We're available 24/7 for all plumbing emergencies in McLean, VA. Sign up for our plumbing maintenance plan to get the best protection from plumbing issues for your home!
 	 
 	 
  • Water Heaters
  • Tankless Water Heaters
  • Storage Tank Water Heaters
  • Water Lines
  • Gas Lines
  • Submeters
  • Water Mains and Sewers
 	 
 	 
  • Bathroom and Kitchen Remodeling
  • Faucets
  • Drains
  • Toilets
  • Water Heaters
  • Sump Pumps
  • Garbage Disposals
  • Bathtubs
Plumbing FAQs
How do I keep my pipes from freezing in the winter?When the weather dips below 32 degrees or lower your pipes are more likely to freeze. There are things you can do to keep your pipes from freezing. One thing you can do is let cold water drip from the faucets to help prevent freezing pipes. You can also keep cabinet doors open to let them get warm air, add insulation around any exposed pipes, keep the temperature in your home above 55 degrees, keep the temperature on the thermostat consistent, and keep your garage door closed.

If you need help protecting your pipes in the winter get in touch with us for help.
How can I spot hidden water leaks?A few ways you can tell if you have a hidden leak include:

Water pressure loss - hissing or splashing souds - rusty water  - nasty sewage smells - moldy odors - surprisingly expensive water bills - unusually green spots on your lawn.

If you suspect you have a leak get in touch with a professional immediately. Leaks can cause much larger, more expensive issues and should be taken care of as soon as possible.
Do you offer free estimates for plumbing?Yes, we offer estimates for all of our plumbing services so you understand exactly how much your paying and what you're paying for, before you agree to service.
How much do plumbing repairs cost?Plumbing repair costs will depend on the type of service you need. The best way to know exactly how much repairs will cost is to get a free estimate from a professional. We offer free estimates, some of the most affordable plumbing services in Mclean, and financing options to help you in the event of an emergency.
Do you offer warranties for your plumbing services?Yes, we guarantee satisfaction with all of our services. If you're not happy with our work we'll work with you to make it right! We are properly licensed and insured to give our customers peace of mind when they choose us for their plumbing services and we proudly stand behind the quality of our work.
What are the benefits of preventative plumbing maintenance?With preventative plumbing maintenance, you can get ahead of big problems before they happen. Our plumbing maintenance plans make it easy to take care of your plumbing. You get an annual professional plumbing inspection at a discounted rate and peace of mind knowing that you won't have to deal with major plumbing issues.
Schedule Your Service!
We believe we provide the best HVAC and Plumbing services in McLean, VA! We're looking forward to the opportunity to help you with your plumbing and HVAC needs. Fill out the form to schedule non-emergency HVAC or Plumbing service. 
 
For emergency services click the button below to give us a call or send us a text at 571-429-0919. We are available 24/7 for all plumbing and HVAC repair needs in McLean, VA.
       
       
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24/7 Emergency HVAC & Plumbing Repair (Call or Text): 571-429-0919
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