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FURNACE REPLACEMENT IN RESTON

EXPERT FURNACE REPLACEMENT SERVICES IN RESTON SINCE 1975

It’s hard to imagine living in Reston without a working furnace, especially during the winter months. If your furnace is more than 10 years old, however, it might be time to think about a  repair. Heating systems wear out over time, and repairs can become costly and difficult to manage as parts become scarce.

Furnace breakdowns are never timely, often occurring during freezing nights or extreme weather. Dave’s Heating and Air Conditioning is here to help, offering expert furnace replacement and installation services. We’ll help you choose the best furnace for your needs and install it quickly and professionally.

Reach out to Dave’s for a quote on furnace installation in Herndon or Reston. Check out our financing options to make things more manageable.

TOP SIGNS THAT YOU NEED A NEW FURNACE

  • Age:
    Furnaces over 10 years old can be more prone to issues. Replacing your unit with a newer, more efficient model can offer better energy savings, advanced SMART features, and ease of maintenance. Older units may also be harder to repair as parts become less available.
  • Frequent Service Calls:
    If you’re repeatedly calling us for repairs during the heating season, it could be a sign your furnace is nearing its end. Frequent breakdowns and repairs often add up quickly, making a replacement a more cost-effective option.
  • Strange Smells:
    A weird smell from your furnace might indicate a leak or damaged ducts. If it’s only the first time you turn the furnace on in the season, it’s typically just dust burning off. However, if the odor persists, it’s time to have it checked.
  • Unusual Sounds:
    Noises like banging, squealing, or rattling can point to internal issues within the furnace. If you hear odd sounds, it’s important to have a professional assess the problem before it worsens.
  • Rising Heating Costs:
    Rising energy bills may mean your furnace is working harder to heat your home. As it struggles to maintain the temperature, it uses more energy. Contact us at 571.346.3940 to schedule a furnace replacement quote and see how much you can save.
  • Excessive Rust:
    Small amounts of rust are normal, but significant rust buildup, especially around the heat exchanger, can cause serious issues, such as component failure or carbon monoxide leaks. If you see a lot of rust, it’s time for an inspection.


Dave’s Heating and Air Conditioning is ready to provide professional furnace replacement, no matter your home’s size in Reston.

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HOW TO FIND THE PERFECT FURNACE FOR YOUR RESTON HOME

When you need a new furnace, we’re here to help you make the best choice. Our HVAC experts will present options that suit your home and needs, including possibly switching fuel types. The right furnace for you depends on:

  • Fuel and Compatibility: Switching to alternatives like heat pumps may require system updates.
  • Efficiency: Higher-efficiency furnaces save more money in the long run. Look for a good AFUE rating.
  • Sizing: Properly sized furnaces work better. Our team ensures the right fit for your home.


Rely on Dave’s Heating and Air Conditioning to guide you through your furnace replacement. We offer professional advice and great savings with our coupons.

PREVENTIVE FURNACE MAINTENANCE FOR LONGEVITY

Routine furnace maintenance prevents costly repairs. Our technicians check for:

  • Loose or exposed wiring
  • Dirty components and filters
  • Carbon monoxide leaks
  • Damaged or worn fan blades
  • Broken or frayed belts
  • Signs of overall wear and tear
  • Clogged or dirty burners


Keep your furnace running longer by scheduling regular maintenance checks.

CHOOSE TRUSTED PROFESSIONALS FOR FURNACE REPLACEMENT

When replacing your furnace in Reston, professional installation is essential. HVAC systems require expertise to install safely, and poor installation can result in heating issues and inefficiency.

At Dave’s Heating and Air Conditioning, we offer professional furnace replacement and installation services throughout Reston and Herndon. Our licensed, insured technicians are fully equipped to properly size and install your new heating system. Whether you’re installing a new furnace or replacing an old one, we’ll help you find the perfect match for your home.

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Frequently Asked Furnace Repair Questions

WHAT FACTORS INFLUENCE THE COST OF REPLACING MY FURNACE?
Furnace replacement costs depend on several factors, including size and efficiency, with an average cost of around $4,700 in 2024. Keep in mind that additional costs, such as labor and permits, may apply.
While some furnaces may last up to 30 years, most will serve you well for 15 to 20 years when installed correctly and maintained regularly. Neglecting to replace an old, inefficient furnace can result in higher energy costs and missed upgrades. Professional installation and ongoing maintenance are key to maximizing your furnace’s lifespan.
While it’s usually legal to replace your furnace, it’s strongly discouraged unless you’re skilled in HVAC systems. You’ll need to get a permit, and certain furnace models require licensed professionals for installation. Attempting to install your furnace without the proper expertise could result in serious safety risks, such as carbon monoxide poisoning, electrical issues, or fire. Manufacturers often won’t honor warranties on units installed by homeowners, so professional installation is the best choice for safety and long-term protection.

Is your furnace showing signs of aging? Here are some key signs it might be time for a replacement:

  • Uneven Heating: If different rooms in your home are uncomfortably hot or cold, your furnace may be on its last legs. This could indicate a more serious problem that could require replacement.
  • Frequent Repairs: If you find yourself repairing your furnace multiple times a season, it may be more cost-effective to replace it. Repairs can cost anywhere from $300 to $800, and older units often need repeated fixes.
  • Age: A furnace that’s over 15 years old could be costing you more in repairs and energy than it’s worth. Installing a new, energy-efficient unit can save you money long-term.
To avoid issues with furnace efficiency and premature replacement, it’s crucial to get the right size. We use a Manual J calculation to assess your home’s square footage, insulation, BTUs per square foot, and local climate. Because this process requires expertise, it’s best to trust a licensed HVAC professional in Loudoun County to handle the sizing.

Yes, furnace replacement can increase your home’s value by up to $3000, but the overall value depends on your individual situation. Buyers in Reston tend to shy away from homes with inefficient or old HVAC systems. For a better understanding of the potential return on investment, give us a call at 571.346.3940 for a FREE furnace replacement estimate. Adding a whole-house humidifier or air quality devices could also add value to your home.

Timing your furnace replacement during off-peak months, such as early spring or fall, allows you to enjoy lower prices and quicker installations. Scheduling during these periods ensures you don’t have to wait, and you can avoid higher costs during the winter rush. If you’re not in a heating emergency, call 571.346.3940 to arrange your appointment.
High-efficiency furnaces with an AFUE rating of 90% or higher can cut your energy bills by 12% or more compared to standard models. However, these systems may require changes to your existing venting and a new condensate line. While the upfront cost is higher, most homeowners recover this extra investment within seven years. If you’re planning on staying in your home long-term, it can be a smart, cost-effective choice.
We only install furnaces that we directly provide for your protection and satisfaction. The models we carry are from trusted brands we stand behind, ensuring top-notch quality. Our HVAC experts also customize the sizing and system design to your home, factoring in important details like ductwork. Installing a furnace we don’t supply could lead to performance issues or inefficiencies.
Most furnaces in Reston come with a standard 5-year warranty, covering popular brands like Trane, Lennox, and Rheem. You can extend this warranty to 10 years by registering your furnace within 90 days of installation. Some manufacturers also provide separate warranties for key components such as heat exchangers. Check your owner’s manual for specific warranty details. Additionally, Dave’s Heating and Air Conditioning provides its own guarantees on furnace installation.
Newer furnaces typically don’t have a pilot light, as they rely on electric ignition, which is safer and more energy-efficient. If you’re trying to relight a pilot light and can’t find one, check the bottom of the furnace for a valve and pilot control knob. If they’re missing, your furnace uses electric ignition.
Replacing a furnace in Reston can take anywhere from 4 to 5 hours for smaller homes, depending on factors such as fuel type and installation complexity. Larger homes may require 8 hours or more for a full replacement.

When replacing a furnace in Reston, it’s important to choose an experienced and trustworthy professional. Make sure to ask these questions before deciding on a contractor:

  • Are you licensed and insured for furnace installation in Reston?
  • Do you offer any rebates or special financing for furnace installation?
  • When can you install my new furnace, and how long will the installation take?
  • What is the overall cost, including any necessary ductwork changes?
  • How experienced is your team with furnaces similar to mine?
  • What brands do you recommend, and what sets them apart from others?
  • Can you provide references from previous furnace installations?
  • What kind of warranty or guarantee do you offer on new installations?


This information will help you make the best choice for your furnace installation. 

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