C. D. Shanahan's HVAC, Plumbing, Electrical & Remodeling

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United States
Springfield, VA
C. D. Shanahan's HVAC, Plumbing, Electrical & Remodeling

We Are A Proud
Multi-Generation
Family-Owned and Operated
Team of Northern Virginia
HVAC Professionals

09/10/2026

A Second Opinion Can Save You Thousands!

When a Falls Church homeowner was told their HVAC system needed to be replaced, an expert second opinion revealed a different solution, saving the homeowner more than $2,000 in unnecessary replacement costs.

Read the latest case study to see how the right diagnosis made all the difference!
https://cdshanahans.com/projects/expert-hvac-2nd-opinion-diagnostic-saves-over-2000-in-unnecessary-replacement-costs-for-a-falls-church-homeowner/

08/27/2026

Seeing brown or rust-colored water coming from your faucets? It’s more than just an unpleasant surprise, it could be a sign of an issue with your plumbing system or water supply.

Our latest blog explores the common causes of discolored water, what it could mean for your home, and when it’s time to call a professional plumber.

Read our latest blog here: https://cdshanahans.com/blog/what-causes-brown-or-rust-colored-water-from-your-faucets/

08/25/2026

Why Is My Outdoor Air Conditioning Unit So Loud?

Is your outdoor AC unit suddenly making more noise than usual? Strange or excessive sounds can be a sign that something needs attention, from loose components and debris to fan or motor issues.

Don’t ignore unusual AC noises. Our latest blog explains some of the common causes and when it may be time to call a professional.

Read the full blog to learn more!
https://cdshanahans.com/blog/why-is-my-outdoor-air-conditioning-unit-so-loud/

08/19/2026

Hot & Cold Spots Throughout Your Home? An older duct system was causing uneven temperatures in this Springfield home. The solution? A ductless mini-split system designed to provide more consistent, efficient comfort.

Read our latest case study to see how we helped solve the problem!
https://cdshanahans.com/projects/older-springfield-home-duct-system-created-hot-cold-spots-addressed-with-a-ductless-mini-split-solution/

08/18/2026

When Was the Last Time You Flushed Your Water Heater? Regular flushing can help reduce sediment buildup, improve efficiency, and extend the life of your water heater.

Check out our latest blog for helpful maintenance tips and to learn how often you should flush your water heater!
https://cdshanahans.com/blog/how-often-should-you-flush-your-water-heater-maintenance-tips-for-homeowners/

08/10/2026

Is your air conditioner leaking water? Don’t ignore it! From clogged drain lines to frozen coils, there are several common causes,and knowing what to look for can help prevent costly damage.

Read our latest blog to learn the common causes of AC leaks and what you can do about them!
https://cdshanahans.com/blog/why-is-water-leaking-from-my-air-conditioner-common-causes-and-what-to-do/

07/31/2026

Is Your Toilet Making a Whistling Noise?

A whistling toilet may seem like a minor annoyance, but it could be a sign of a worn fill valve, high water pressure, or another plumbing issue that shouldn't be ignored.

In our latest blog, we explain the most common reasons your toilet may be making a whistling sound, what it means, and when it's time to call a plumbing professional.
https://cdshanahans.com/blog/why-does-my-toilet-make-a-whistling-noise/

07/30/2026

Is Your Water Heater Leaking? Don’t Ignore the Warning Signs!

A leaking water heater can be caused by anything from a loose connection to a more serious issue that may require repair or replacement. Catching the problem early can help prevent costly water damage and unexpected breakdowns.

Our latest blog explains the common causes of a leaking water heater, what you can check, and when it's time to call a professional.
https://cdshanahans.com/blog/why-is-my-water-heater-leaking-common-causes-and-what-to-do/

07/28/2026

Is your home showing signs of a damaged or collapsed sewer line? Slow drains, recurring backups, foul odors, or soggy spots in your yard could all indicate a serious underground plumbing issue. Learn the warning signs and when it's time to call a professional before the damage gets worse.

Read our latest blog here:
https://cdshanahans.com/blog/what-are-the-signs-of-a-damaged-or-collapsed-sewer-line/

07/21/2026

Ready to upgrade your home's water heating efficiency? Check out our latest case study showcasing how an outdated water heater was replaced with an energy-efficient Essency Hybrid System for a McLean, VA homeowner.

Learn how this upgrade improved performance, efficiency, and home comfort.

📖 Read our latest case study: https://cdshanahans.com/projects/outdated-water-heater-efficiency-upgrade-to-essency-hybrid-system-for-mclean-va-homeowner/

Address

7950 Woodruff Court
Springfield, VA
22151

Telephone

+15714290919

Website

https://cdshanahans.com/

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