Heating Repair & Replacement in Reston

Providing Heating Repair and Replacement Services in Reston Since 1975

When temperatures drop, your home needs a heating system that works efficiently. If your furnace is outdated or struggling, it may be time for a repair or upgrade. Without regular maintenance, HVAC systems can wear out, leading to breakdowns when you least expect them. A failing heater in winter isn’t just uncomfortable, it can be dangerous. Dave’s Heating and Air Conditioning has provided trusted heating services in Reston. Contact us for expert repairs and installations.

Understanding How Your Furnace Works

Your furnace is responsible for warming and circulating air throughout your home. Here’s how it works:

The furnace uses gas, electricity, propane, or heating oil as fuel.
When the temperature inside drops, the thermostat signals the furnace to turn on.
The furnace ignites fuel inside the heat exchanger while safely venting exhaust gases.
The blower pulls in air, heats it, and circulates it through your home.
When the desired temperature is reached, the furnace shuts off until needed again.

This cycle repeats to keep your home comfortable all season long.

Did you know? The word “furnace” comes from the Latin word fornax, meaning “oven.” This term has been around for over a thousand years—long before modern propane and gas furnaces were invented in the 1880s!

Heating Services in Reston

Ensuring reliable heating is essential during the colder months in Loudoun County. Many Reston residents rely on furnaces or boilers for warmth, and maintaining these systems is crucial for efficiency and longevity. Dave’s Heating and Air Conditioning provides a range of services to support residential heating systems and ensure consistent indoor comfort.

Furnace Repair

A furnace malfunction can sometimes be resolved with a simple fix, such as replacing a fuse or cleaning components. However, more extensive repairs may be necessary to restore proper function. Experienced heating professionals in Reston are equipped to handle a range of furnace issues, ensuring systems operate safely and efficiently.

Furnace Replacement

As furnaces age, components like the blower motor can fail, leading to costly repairs. While some issues can be addressed with maintenance, replacing a system over 10 years old often results in better efficiency and lower operating costs. Homeowners in Herndon can consult experienced HVAC professionals to explore replacement options that meet their needs.

Furnace Maintenance

Regular furnace maintenance is essential for extending the lifespan of your heating system and ensuring optimal performance. Routine inspections by HVAC professionals in the Reston area help identify potential issues early, improve efficiency, and reduce energy costs. Scheduling annual maintenance can also prevent unexpected breakdowns and costly repairs.

Comprehensive Heating Solutions for Loudoun County

Furnaces are a popular heating choice, but they are not the only solution available. Depending on a home’s needs, alternative heating systems may offer better efficiency or performance. HVAC professionals provide expert advice and service to ensure every home remains warm and comfortable. For assistance with alternative heating solutions, call 571.346.3940.

Heat Pump Maintenance

Regular maintenance is essential for keeping heat pumps operating efficiently. Routine inspections help ensure proper airflow, detect potential issues, and prevent costly repairs. Professional servicing includes checking for leaks, inspecting components, and optimizing system performance to maintain reliable heating and cooling.

Heat Pump Conversion

Switching to a heat pump offers a more energy-efficient alternative to traditional air conditioning systems. Homeowners making this transition may be eligible for rebates that offset costs. Experienced HVAC technicians in Reston provide installation and support to ensure a seamless conversion.

Heat Pump Repair

Heat pumps are designed for efficiency, but over time, components may wear out or fail. Expert repair services can quickly identify and resolve issues, restoring system functionality.

Call 571.346.3940 to schedule heat pump service in the Reston area.

Heater Service

Heating systems vary, and not all homes in Reston use standard forced-air units. Whether it’s a furnace or another type of heating system, professional HVAC technicians can diagnose and resolve any heating concerns efficiently.

Reach out by form or phone to schedule service with Reston’s favorite heater service experts.

Heater Maintenance

Regardless of the type of heater, routine maintenance is necessary to maintain performance and prevent unexpected failures. Regular check-ups help keep heating systems running efficiently.

Heater Replacement

Replacing a heating system is a significant decision that requires professional expertise. HVAC specialists can assess your home’s needs and recommend the most efficient and reliable replacement options.

Ductless Heating

Ductless heating systems offer a convenient solution for homes without traditional ductwork. Mini-split systems provide efficient temperature control, making them ideal for additions, renovations, or spaces requiring independent climate management.

What to Look for in an HVAC Contractor

Your home’s furnace, boiler, or heat pump is a major investment that requires expert service. When selecting an HVAC professional for maintenance, repairs, or installation, consider these key factors:

Proper Licensing & Insurance – A licensed contractor ensures compliance with state regulations, while insurance coverage protects homeowners from liability.
Positive Reputation – Read customer reviews and ask for recommendations. A company’s responsiveness to feedback reflects its reliability.
Industry Experience – A knowledgeable technician can quickly diagnose and repair HVAC issues, improving system performance.
Strong Warranties & an Excellent Guarantee Policy – Choose a company that provides comprehensive warranties and an excellent guarantee policy to safeguard your investment.
Cost Savings & Special Offers – Many HVAC companies provide seasonal discounts or rebate programs to reduce costs.

Hiring a qualified professional ensures that your heating system remains efficient and reliable.

Professional Heating Service in Reston and Herndon

For decades, Dave’s Heating and Air Conditioning has been a trusted name in HVAC services. We take customer satisfaction seriously, offering a commitment to quality backed by an excellent guarantee policy.

If you need furnace repair, boiler replacement, or heat pump installation, our skilled technicians are here to assist. Call 571.346.3940 to schedule a service appointment in Reston, Herndon, or Sterling.

Frequently Asked Questions

Do You Really Need Furnace Maintenance in Reston?

Yes. Regular furnace maintenance is key to avoiding costly repairs and improving energy efficiency. A professional technician will inspect components, clean critical areas, and test electrical connections. Plus, most warranties require routine service to stay valid.

Don’t wait until there’s a problem. Schedule your HVAC tune-up today by calling 571.346.3940.

When to Change Your Furnace Filter

Replacing your furnace filter at the right intervals improves performance and air quality. A 1-inch filter should be changed monthly, while a 4-inch filter lasts six to nine months. If you have shedding pets or notice more dust, inspect it more frequently. If it looks dirty or clogged, swap it out.

With Brands of Furnaces and Heating Products does Dave's Heating and Air Conditioning Work On?

Our experienced technicians service all major HVAC brands, including Coleman, Carrier, Bryant, Payne, Trane, Lennox, Rheem, Mitsubishi, Frigidaire, Gibson, Goodman, Maytag, Weil-McLain, American Standard, General, and Dynamic. No matter your system, we have the expertise to keep it running efficiently.

What to Check When Your Heat Goes Out

Furnace Power – Ensure it’s ON and check the breaker.
Air Filter – A dirty filter can cause problems. Replace it if needed.
Thermostat Settings – Make sure it’s on “heat” and replace batteries if necessary.
Outdoor Vent – Clear snow or debris that might be blocking airflow.

Still no heat? Call 571.346.3940 for expert furnace repair in Reston.

Simple Ways to Reduce Your Heating Costs

Cutting your heating bill doesn’t have to mean replacing your furnace, boiler, or heat pump. Try these cost-saving tips:

Adjust Your Thermostat – Lowering it by 10 degrees can reduce energy costs by nearly a third.
Seal Air Leaks – Small gaps in windows and ductwork can cause up to 40% heat loss. Sealing them saves energy.
Schedule HVAC Maintenance – Regular furnace tune-ups keep your system running efficiently and lower energy use.
Enhance Insulation – Insufficient insulation leads to heat loss. Upgrading it reduces heating costs.
Cover Your Windows – The Department of Energy states that 30% of heat escapes through windows. Curtains help trap warmth.
Check Vents – Blocked or dirty vents can prevent proper airflow. Cleaning them improves heating efficiency.

Need professional HVAC service? Call 571.346.3940 today.

How Much Does a Furnace Replacement Cost?

Furnace installation costs in Reston are influenced by several key factors:

Furnace Selection – Efficiency ratings and fuel type affect upfront pricing.
Home Size & Insulation – Proper sizing ensures optimal performance and energy savings.
Installation Scope – If new ductwork, venting, or gas lines are needed, costs may rise.
Additional Units – If your home has multiple HVAC systems, expenses will be higher.

What Does “No-Heat Call” Mean?

A no-heat call means a home’s heating system has stopped working entirely. Whether it’s a furnace, boiler, or heat pump issue, our team prioritizes these calls to ensure you’re not left in the cold.

Should You Turn Off Your Heating System Before a Long Trip?

If you’re traveling for a while, make sure your heating system is properly adjusted. Turning off your boiler or furnace entirely can lead to frozen pipes and damage to your home’s structure and appliances. Instead, keep your thermostat set to at least 55°F to maintain a safe indoor temperature while conserving energy. If pets are staying home, set it slightly warmer for their comfort. Before you leave, switch your thermostat to ‘vacation’ or ‘hold’ mode to keep your settings locked in.

Why Is One Room Cold and the Other Warm?

If one part of your home is too warm while another is freezing, airflow issues or duct problems may be to blame. Instead of struggling with guesswork, let our HVAC experts take care of it. Call 571.346.3940 today, and we’ll help restore even comfort throughout your home

What’s an AFUE Rating?

AFUE, or Annual Fuel Utilization Efficiency, measures how much of a heating system’s fuel actually turns into heat. A higher AFUE means greater efficiency and lower heating costs. The rating is calculated by comparing heat output to fuel input over a year. Federal regulations ensure heating systems meet minimum AFUE standards for better energy savings.

What Are Efficiency Ratings?

Efficiency ratings help assess how effectively a heating or cooling system converts energy into comfort. AFUE is one type, but you may also see SEER, HSPF, and EER ratings. Each serves the same purpose—to measure performance and energy consumption, helping you choose the best system for your home.

Should You Choose Gas or Electric Heating?

The right choice depends on several key factors:

Air Quality: Electric systems don’t burn fuel, reducing indoor air pollution.
Safety: Electric heating eliminates the risks associated with gas leaks.
Heating Speed: Gas systems heat faster than electric ones.
Reliability: Gas furnaces can provide heat even if the power goes out.
Lifespan: Electric furnaces typically last longer.
Maintenance Needs: Gas units require more frequent servicing.
Cost: Electric heating has a lower initial cost but is more expensive to operate.

Is It a Good Idea to Close Vents in Unused Rooms?

While it might seem like closing vents conserves energy, it actually causes more harm than good. It can:

Disrupt airflow and create pressure issues
Reduce overall heating efficiency
Exacerbate air leaks in your ductwork
Increase the risk of mold due to trapped warmth
Strain and damage your heating system over time

A better solution? Keep doors open to promote even heating. If a room is too warm, you can partially close the vent, but avoid shutting it completely.

Not Sure What Kind of Heating System You Have?

Check how heat is distributed:

Radiators & pipes? You have a boiler.
Vents & ducts? It’s likely a furnace or heat pump.
One outdoor unit? That’s a heat pump.
Two units? It’s a furnace.

Need an expert opinion? Our Reston HVAC technicians can confirm during your next tune-up!

Is It Safe to Run Your Heating System at High Temperatures?

Turning up your thermostat won’t make your home heat up any faster and may actually lead to system issues. Modern furnaces are designed with temperature limits that prevent them from exceeding 90°F to avoid overheating. Running your system at extreme temperatures can damage the heat exchanger, force the high-limit switch to shut it down, and cause unnecessary wear and tear. Additionally, higher settings lead to longer heating cycles, which waste energy and drive up utility costs. To keep your home comfortable and your system running efficiently, experts suggest setting your thermostat no higher than 78°F.

What’s Two-Stage Heating?

Traditional furnaces operate at a single stage, meaning they turn on at full power whenever heat is needed. In contrast, two-stage heating systems have both high and low settings—allowing them to run more efficiently. The low setting operates during mild weather, while the high setting is reserved for extremely cold days. This reduces energy waste, provides steadier temperatures, and ensures quieter performance. Because they adjust their heating output as needed, two-stage furnaces are often referred to as modulating systems.

Why Does My Home Get Dry When My Heating System Runs?

Winter air is naturally dry, but your heating system can make it feel even worse. Warm air holds more moisture than cold air, meaning your furnace pulls humidity from the air as it heats your home. Gas furnaces also contribute to dryness by reducing relative humidity during combustion. If your home feels uncomfortably dry, a whole-house humidifier can help by integrating with your heating system to add moisture back into the air, improving comfort and air quality.

What Parts Are There in a Heating System?

Blower & Blower Motor – Pushes warm air through the vents and distributes heat throughout your home.
Blower Chamber – Stabilizes the blower and motor, preventing vibrations and damage.
Combustion Chamber – Houses the ignition system and keeps it separate from other components for safety.
Heat Exchanger – Transfers heat from combustion gases to circulating air while venting gases outside.
Burner – Generates the flame needed for heating, fueled by gas or an electric spark.
Burner Cover – Shields key components like the flame sensor and ignitor to ensure safe operation.
Flame Sensor – Detects if the burner is ignited and shuts down the furnace if an issue arises.
Ignition System – Older models use a pilot light, while modern furnaces have electronic ignitors for reliability.
Limit Switch – Monitors furnace temperature and shuts off the system if it overheats.