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Furnace Replacement in Reston

Providing Furnace Replacement Services in Reston Since 1975

Can you imagine living in the Reston area without a working furnace? It’s not a pleasant thought, is it? Unfortunately, if your furnace is over 10 years old, this could become a reality sooner than you think. Just like everything else, heating systems have a lifespan. As they age, the need for regular furnace repair increases, and finding replacement parts becomes more difficult. Eventually, whether due to cost or necessity, every furnace will need to be replaced.
Unfortunately, a furnace breakdown never happens at a convenient time. It often occurs late at night or during the coldest days of the year. Thankfully, the HVAC experts at Dave’s Heating and Air Conditioning are here to help. Regardless of the fuel source, we’ll assist you in finding the perfect furnace and install it quickly and professionally, as we’re known for doing.
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.

Signs You Might Need a New Furnace

A furnace nearing the end of its life often sends out warning signs. While some are obvious, like a furnace that won’t turn on, others are more subtle. These signs could indicate that a replacement is on the horizon, such as:
  • Age:

    If your furnace is over 10 years old, it might be time to consider replacement rather than repair. Newer models are more efficient, feature advanced SMART systems, and are easier to maintain. Additionally, as your furnace ages, finding replacement parts becomes more challenging.

  • Repeated Visits:

    Are you calling us multiple times during the heating season for unrelated issues? This could be a sign that your furnace is failing. Older units often experience multiple parts failures in a short period, and the cumulative cost of repairs may exceed the cost of a new furnace.

  • Weird Smells:

    If your furnace produces a strange odor that doesn’t go away with use, it may signal a leak or faulty ductwork. However, if the smell only occurs the first time you turn it on each season, it’s likely just dust burning off from the summer months, which is normal.

  • Odd Noises:

    If you hear strange noises coming from your furnace, it could be a sign of an impending failure. These sounds can indicate a serious issue, so it’s best to call a heating repair expert in the Reston area to assess the situation.

  • Climbing Utility Bills:

    If your heating bills are higher than usual, it could mean your furnace is struggling to maintain the desired temperature. This increased effort leads to higher energy costs. To find out how much a new furnace could save you, call 571.346.3940 to schedule a furnace replacement quote.

  • Visual Rust:

    While small amounts of rust are normal over time, excessive rust—especially around the heat exchanger—can indicate a serious problem. Rust damage can lead to component failure and may allow carbon monoxide to leak into your home. It’s always a good idea to have a professional inspect any significant rust buildup.

No matter the size of your home in Reston, Dave’s Heating and Air Conditioning can ensure it stays warm with expert furnace replacement.
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How to Ensure You Get the Best Furnace for Your Reston Home

Once it’s clear that a new furnace is necessary, our HVAC experts will offer you replacement options, which may include switching the fuel source. The best choice for you depends on several factors, not just your budget. While cost is important, our technician will aim to balance expenses with:
  • Compatibility:
    Although alternatives to your current furnace exist—including heat pumps—they often require changes to your distribution system.
  • Energy Efficiency:
    While most new systems are more eco-friendly, the degree of efficiency varies. If you’re looking for long-term savings, consider choosing a unit with a higher AFUE rating.
  • Sizing:
    Proper sizing is crucial. A unit that’s too large will cause short cycling, while one that’s too small may struggle to heat rooms farthest from the furnace. For accurate sizing, trust the Reston HVAC experts at Dave’s to get it right.
Wondering how to choose the right furnace for your home in the Reston area? The answer is simple: trust our expert recommendations. Our team is dedicated to your comfort and will work hard to find a furnace that fits your home’s needs. Plus, we offer coupons to make installing a new furnace more affordable.

An Ounce of Furnace Maintenance is Worth a Pound of Cure

Installing a new furnace is a long-term investment in your home, and you want to make sure it pays off. That’s where preventive furnace maintenance comes in. We recommend scheduling regular visits from an HVAC technician to thoroughly inspect your home’s comfort systems. During these visits, they’ll follow an extensive checklist and check for issues such as:
  • Loose wires
  • Dirty components or filters
  • Carbon monoxide leaks
  • Damaged fan blades
  • Worn or broken belts
  • Signs of excessive wear and tear
  • Clogged or dirty burners
Scheduling regular checks helps you extend the lifespan of your furnace. Learn more about our comprehensive furnace maintenance services today.

When it Comes to New Furnace Installation, Choose the Company Your Friends Trust

Furnace replacement in Reston should always be handled by a professional. HVAC systems can be dangerous to work with, even with the right training and equipment. Improper installation—which we frequently encounter—can result in ongoing heating inefficiencies.
At Dave’s Heating and Air Conditioning, we offer top-notch furnace replacement and installation services in the Herndon area. Our licensed and insured HVAC technicians are highly trained and come prepared with everything needed to properly size and install your new heating system. Whether you’re installing a new furnace in Reston or replacing an old one, we’ll help you select the perfect product to meet your needs.
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Frequently Asked Furnace Repair Questions

What Will it Cost to Replace My Furnace in Reston?

The cost of installing a new furnace depends on factors like efficiency, home size, and layout, as well as the brand and installer reputation. Keep in mind that even if you find a furnace online, there are additional costs such as labor, permits, ductwork installation, and disposal of the old unit. According to Forbes, the average cost of a furnace in 2024 is $4700. A new air conditioner will generally cost less, while a new heat pump will be more expensive.

You may have heard of furnaces lasting 25 or even 30 years, but those are rare exceptions. Failing to replace an aging furnace can lead to lower efficiency and missed technological advancements. A poorly installed, maintained, or undersized unit will not last as long as one that is properly installed and cared for. With professional installation and regular maintenance from a Reston HVAC expert, you can typically expect your furnace to last between 15 and 20 years.
In most areas, it’s not illegal to install your own heating system, but it’s strongly discouraged unless it’s your area of expertise. You will need to pull a permit, and some units require a licensed professional for installation. Just like with Reston furnace repair, attempting to replace your own furnace can lead to dangerous issues such as carbon monoxide poisoning, fires, and electrical problems. Additionally, manufacturers typically won’t cover units installed by unlicensed homeowners. Professional installation and maintenance are usually required for safety and warranty coverage.
Has your furnace in Reston started showing signs of aging? Are you worried that your search for “furnace repair near me” might lead to needing a new heating system? Here are a few signs it’s time to replace your unit:
  • Uneven Heating: If one room feels like an ice box while another feels like a sauna, your furnace might be nearing the end of its lifespan. This could signal a serious internal problem or poor ductwork design. A Reston furnace expert can help determine whether a repair or replacement is necessary.
  • Frequent Repairs: Furnace repairs in Reston typically cost between $300 and $800. If you find yourself needing repairs multiple times a season, it may be time to replace your unit. Older systems often experience multiple failures as they age.
  • Age: If your furnace is in its “teen years,” it may be more cost-effective to replace it. A new unit will not only reduce the need for repairs but will also be more energy-efficient, saving you money in the long run with modern features.
An improperly sized furnace is one of the main reasons for premature furnace replacement in Reston. To ensure your new system lasts as long as possible, it must be correctly sized. This is determined using a Manual J calculation, which takes into account factors like your home’s square footage, the required BTUs per square foot, insulation levels, and your climate zone. Since these calculations can be complex, it’s best to leave them to a licensed Loudoun County HVAC professional.
It can! However, whether the increase—typically between $2500 and $3000—is worth the installation cost depends on you. Keep in mind that many buyers in Reston won’t purchase a home with a poor HVAC system, often seeing it as a liability. For a clearer idea of the ROI, call 571.346.3940 for a FREE quote on furnace replacement. You may also want to consider adding a whole-house humidifier or other air quality devices.
Timing is crucial when it comes to installing a new furnace for two main reasons. First, scheduling during periods of low demand lets you take advantage of lower prices. Second, our least busy times of the year ensure a faster installation. If you’re not facing a heating emergency in Reston, consider scheduling during early spring or fall. Call 571.346.3940 to book an appointment.
In today’s market, a furnace with an AFUE over 90% is considered high-efficiency, offering at least 12% more efficiency than budget models. While this can reduce monthly utility bills, several factors determine if it’s a good fit for your home. A high-efficiency furnace may require changes to your vents and the addition of a condensate line. Over seven years, most homeowners recover the extra cost of a high-efficiency unit. If you plan to stay long-term, it’s often a smart investment.
We cannot install equipment we don’t directly purchase for several reasons. First, we only stock trusted furnaces from reputable brands that we stand behind 100%. We want to ensure customer satisfaction and can’t guarantee the quality of products we don’t directly provide. Second, our Reston HVAC technicians take the time to calculate the proper unit size and design for your heating system. Many homeowners don’t realize how factors like ductwork design impact the performance of the final system.
The average furnace in Reston comes with a standard 5-year warranty, which applies to brands like Trane, Lennox, and Rheem. Registering your product within 90 days of installation can extend this coverage to 10 years. Many manufacturers also provide a separate warranty for heat exchangers. Check your owner’s manual for details on your specific unit. Additionally, Dave’s Heating and Air Conditioning offers our own guarantees on furnace installation.
If your new furnace went out during a storm and you’re struggling to relight the pilot light, it’s likely that your updated model doesn’t have one. Most newer furnaces use electric ignition instead, which is more energy-efficient and reduces fire hazards. To check if your furnace still has a pilot light, look for a valve and pilot control knob at the bottom of the unit. If you don’t find these, your furnace uses electric ignition.
The time it takes to replace a furnace in Reston depends on factors like the fuel type of the new unit, the size of your home, and the complexity of the installation. For smaller homes, our technicians typically need four to five hours. For larger homes, the process may take eight hours or more.
With furnace replacement costs in Reston often reaching five figures, it’s crucial to choose a reliable, experienced HVAC professional. To help you make the right decision, ask potential companies these questions:
  • What kind of licensing and insurance do you have? Are you authorized to install heating systems in the Herndon area?
  • Are there any available rebates I can take advantage of?
  • How long will it take to schedule installation?
  • What’s the total cost, including any ductwork adjustments?
  • How experienced is your company with furnaces of my required size and configuration?
  • Which furnace brands do you carry and recommend? Why?
  • Can you provide any customer reviews or references?
  • What warranty do you offer on new furnaces in Reston?
After gathering this information, compare your options across these factors to find the best fit for your furnace installation.
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