Don’t wait for a furnace breakdown in the middle of a Maryland cold snap — keep your home protected with professional furnace services from Reliability Home Services, Dundalk’s trusted name in heating care.
For years, homeowners across Dundalk, Baltimore County, and the greater Maryland area have counted on our Maryland-certified, NATE-trained technicians for fast repairs, flawless installations, and high-efficiency replacements. Whether your furnace is making strange noises, struggling to heat evenly, or has stopped working altogether — we’ll fix it right the first time.
Why Dundalk Homeowners Trust Us:
When you reach out to Reliability Home Services, you can expect high-quality work, prompt service, and affordable rates that fit your budget. Our highly trained, Maryland-certified HVAC technicians are equipped to handle any job, no matter how complex. Contact us today for a free estimate on furnace installation or repairs. We also provide emergency services.
To schedule furnace services in Dundalk, Maryland, please fill out our contact form or give us a call.

Strange noises? Weak airflow? Furnace running nonstop? These are early warning signs your system is about to fail.
We fix all common furnace problems, including:
Your furnace is an essential part of your home that is often ignored until it’s needed. However, it should not be neglected throughout the year. Regular maintenance on your heating system can help ensure its longevity and proper functioning.
We manage every stage of your furnace’s life, guaranteeing its durability and optimal performance year after year.
Professional installation of brand-new, energy-efficient furnaces. We correctly size and install units from leading brands like American Standard, optimizing features to meet your home's exact specifications and heating needs.
Precision Tune-ups and regular check-ups by NATE-certified specialists to prevent unexpected breakdowns and maintain efficiency throughout the winter. Enroll in our VIP membership for discounts and savings.
Seamless removal of your old unit and replacement with a high-efficiency model when repairs are too costly or your unit poses a safety risk. Our replacement service helps lower energy bills.
Fast, 24/7 emergency services for gas, electric, and oil furnaces. We diagnose and fix issues like ignition failure, poor airflow, and sporadic heat to restore warmth immediately.
STOP! If your furnace burner flame is yellow or orange (instead of a steady blue), this is a critical sign that your system may be producing odorless, colorless, and fatal Carbon Monoxide (CO). This is a life-safety emergency.
If you see a yellow flame, contact us immediately for an emergency inspection.
Your furnace is one of the most costly appliances you have in your home. Keeping it running efficiently not only lowers your overall energy costs, but makes the furnace last years longer. Today, furnaces are manufactured with energy efficient technology so that they not only use less energy to heat your home, they also lower your energy bills. Therefore, the savings help with the cost of the furnace.
A few signs that you may need to install a new furnace are:
Normally, furnaces last about 18 years, but if your furnace is more than 15 years old, it is most likely an old unit and should be replaced with an Energy Star rated furnace, which is 15% more efficient than other furnaces.
If your furnace has been repaired by a professional, and your air ducts are sealed, your energy bill should not go up drastically. If it does, it may mean your furnace needs to be replaced.
This means an older furnace is nearing the end of its life.
This is a gas that is odorless, colorless, and tasteless and can be fatal.

Excelent work !!!

Matt our technician was awesome.

Very professional and very knowledgeable and the mechanics are courteous.

Positive: Professionalism , Quality , Responsiveness Gary did a great job on our seasonal tune up. He was super thorough and was able to troubleshoot an issue that a previous person wanted to charge us $1300 to fix! Great service and very knowledgeable!

Prompt, Professional service.

The tech, William was courteous and professional. Had a problem with my shower faucet handle. I thought it might have to be replaced. But William figured out faucet had been installed incorrectly originally and properly installed it. Now the handle works perfectly. Great job!

Arrived within their quoted service window and provided excellent service! Rob was great and saved the day!

Positive: Responsiveness Exceptional customer service from my initial call through the service completion.

Excellent work done quickly and professionally. Practiced social distancing, wore masks and booties, cleaned up thoroughly. Appreciated the text with photo in advance of arrival. Would recommend to anyone.

Encountered issue on the first day which required them to come back the next day. Excellent job and very thorough.

Very Knowledgeable and extremely professional. Highly recommend.

Sent out a tech with in 2 hrs of calling. Tech was very heplful in educating me on a gas furnace and lighting the pilot. Excellent service, friendly and efficient. Highly recommend them for your HVAC needs.

He did a great job and had very good recommendations on a upgrade system for my home.

Great customer service, knowledgable service personnel. Very expensive.

Fast, efficient, reasonably priced.

Positive: Professionalism , Punctuality , Quality , Responsiveness William was knowledgeable and offered several repair options to replace an external hose bib. He also made a trip to hardware store to purchase additional parts to install an internal access panel. His work was impeccable. Work was completed yesterday so time will tell the quality of work delivered.

Most Dundalk calls receive same-day or next-day service, with emergency options available 24/7 during peak winter.
The cost of a furnace replacement varies based on the unit’s efficiency rating (AFUE), size, and complexity. While we offer affordable rates and financing options, the best way to determine the precise cost for your Dundalk home is through a free, on-site estimate.
A yellow or orange burner flame is dangerous because it indicates incomplete combustion, which can lead to the production of carbon monoxide (CO). This requires immediate professional diagnosis by a certified technician to prevent a potentially fatal leak in your home.
If your furnace is under 12 years old and repair cost is minor, repair is usually worth it. Over 15 years old or multiple repairs lately? Replacement will save you more long term.
We recommend scheduling a professional Precision Tune-up every fall before the heating season begins. This ensures longevity, maintains efficiency, prevents unexpected breakdowns, and is often required to keep manufacturer warranties valid.
Whether your furnace is acting up or completely dead, Reliability Home Services is ready to restore your comfort — fast, affordable, and professionally.
To schedule furnace services in Dundalk Maryland, fill out our contact form or call us.