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Manassas VA Plumbing, Heating, And AC Repair

AC Repair Services in Reston, VA

Are you noticing leaks or strange noises coming from your air conditioner? Call us at 571-719-6140 to schedule expert AC repair in Reston, VA!

Our team at J Hood Services has been providing northern Virginia homeowners with professional air conditioning repair services since 2006. We’ve seen it all, from AC units that mysteriously won’t turn on to air conditioners blowing warm air instead of cool. No matter the issue, we have the solutions to restore the comfort of your home.

As the leading AC repair service company in Reston, VA and the surrounding communities, you can depend on us to deliver outstanding customer service and hassle-free air conditioner repair. We have the utmost respect for your time and property, so we’ll make the necessary repairs while disrupting you and your space as little as possible.

Why Is My AC Not Working Properly?

If your air conditioning system isn’t cooling your home properly, the cause could be anything from dirty condenser coils to a broken compressor. Our HVAC technicians at J Hood Services have the expertise to diagnose and repair air conditioning issues quickly and efficiently.

The following are some of the most frequent culprits that could prevent your air conditioning unit from doing its job or cause damage to your home:

Clogged Drain

Your AC unit produces condensation that drips into a pan and flows to a drain, preventing water buildup inside the system. If the drain line becomes clogged by debris, the drip pan will eventually overflow and cause a leak inside your house.

Electrical Issues

Electrical problems, such as a malfunctioning thermostat or faulty wiring, could cause your AC system to trip the circuit breaker and turn off unexpectedly. An experienced AC technician can assess and fix the wiring or recalibrate the thermostat to get your cooling system working again.

Faulty Fans

If your central air conditioner isn’t circulating the air in your home, there might be a problem with the fans. A worn-out fan belt or broken fan motor are issues that lead to inoperable air conditioner fans that might need replacing.

Our expert air conditioner repair services, followed up with regular maintenance by our professional HVAC technicians, will ensure your air conditioning unit stays in tip-top shape.

Poor Air Circulation

Besides broken fans, insufficient airflow can be due to blocked vents, clogged air filters, or an air conditioner unit that’s too small for the size of your home. With these problems, you might notice that only some rooms get cool while others stay hot and humid.

Refrigerant Leak

If you hear an unusual hissing sound coming from your air conditioner system, it could be a sign of leaking refrigerant. Refrigerant is the fluid in your air conditioner that absorbs heat and helps cool down your interior. When it leaks, your system could overheat and become extremely inefficient.

Frozen Evaporator Coils

When coolant levels are low or the air conditioning is running too often, it can cause the evaporator coil to freeze. A frozen evaporator coil can’t adequately cool the warm air passing through your air conditioner.

Defective Parts

As your AC gets older, the components inside, such as the compressor or fans, can start to wear down and reduce the efficiency of your air conditioner. Our technicians can provide air conditioner repair services to fix or replace the parts, but, sometimes, the most cost-effective solution is a total AC replacement.

Optimizing Your AC Repair in Reston, VA for Peak Performance Across All Seasons

Maintaining an HVAC (Heating, Ventilation, and Air Conditioning) system to achieve optimal performance throughout the year is a year-round task. It involves a series of tasks that ensure the system's efficiency, prolong its lifespan and save on energy costs. Here are some steps to adequately prepare your HVAC system for each season.

Preparing for AC Maintenance in Reston, VA

In spring, homeowners should focus on transitioning from heating to cooling. Here are some tasks to undertake during spring:

  • Schedule a professional tune-up: This helps identify and fix any damage that may have been incurred over the winter.

  • Change air filters: A clean air filter improves indoor air quality and enhances system performance.

Clean outdoor units: Remove any dirt or debris that may clog your system.

Preparing for Air Conditioner Repair in Reston, VA this Summer

During summer, the aim is to keep your home cool without raising energy costs. To achieve this:

  • Pre-cool your home: Cool your house in the early morning hours before heat sets in.

  • Use ceiling fans: Fans help distribute cool air efficiently throughout your home.

  • Upgrade insulation: Insulation keeps cool air within the house and blocks out heat.

Preparing for Air Conditioning Repair in Reston, VA

Fall is a transition period from cooling to heating. Here's what you need to do:

  • Schedule a professional inspection and tune-up: This ensures that the furnace functions efficiently during winter.

  • Seal cracks and leaks: Any cracks or leaks in doors or windows can cause heat loss.

Finding Emergency AC Repair Near Me
Winter demands efficient heating. To guarantee this:
Adjust your thermostat settings : Lowering thermostat settings when not at home can save on heating costs.
Insulate pipes: Pipes should be insulated to prevent them from freezing.
In all seasons, remember to check for unusual noises, smells or decreased performance in your HVAC system as these might indicate more significant problems requiring immediate attention. Regular maintenance of your HVAC will lead not only to optimal performance across all seasons but also prolong its lifespan, improve indoor comfort levels and reduce energy bills.


Understanding AC Repair Services in Reston, VA and the Frequency of Changing Your HVAC System's Air Filters

The effectiveness of your HVAC system heavily hinges on a component that is often overlooked - the air filter. This element is responsible for filtering out dust, allergens and other particles from the air that circulates within your home. A well-maintained air filter can thus significantly improve indoor air quality, boost your HVAC system’s efficiency, and ensure its longevity.

The frequency at which you should replace or clean your HVAC air filters depends on several factors:

Type of Filter

  • Disposable Filters: These are typically made from fiberglass or pleated paper and cardboard. Depending on the quality, disposable filters may need to be replaced every 1-3 months.

  • Reusable Filters: These can be washed and reused. They're usually made from plastic or aluminum mesh with synthetic fibers and should be cleaned once a month.


  • High Usage: If you use your HVAC system for most parts of the day, it may be necessary to change or clean the filters more frequently (every month).

  • Low Usage: If your system is used less frequently, then replacing or cleaning every 2-3 months may suffice.


  • High Dust Areas: Homes located in areas with high levels of dust, pollen or other pollutants may require more frequent filter changes.

  • Pet Owners: Homes with pets can accumulate pet dander, leading to more frequent filter changes.

Allergies/Sensitivity to Pollutants

If there are individuals in your home who suffer from allergies or asthma, it may be beneficial to change filters more regularly to ensure optimal indoor air quality.

While these are general guidelines, it's always a good idea to check the manufacturer’s recommendation on filter maintenance for specific instructions related to your HVAC model. Furthermore, regular inspection can help you gauge when a replacement or cleaning is due - if the filter looks clogged and obstructed, it's likely time for a change.

Remember, regular maintenance of air filters is not just about enhancing the performance and extending the lifespan of your HVAC system, but also about maintaining a healthy living environment. A clean air filter can reduce the chances of allergens circulating in your home, contributing to better respiratory health for you and your family. Regularly inspecting and replacing your HVAC unit's air filter is a small task that can make a huge difference in your home comfort levels and overall health.


Several factors may contribute to your HVAC system's suboptimal performance, leading to insufficient heating or cooling. It is essential to identify the cause and find the appropriate solutions to ensure a cozy indoor climate. Here are key issues and corresponding solutions that could be causing your HVAC system not to function at its best:

1. Dirty Air Filters

Air filters play a critical role in ensuring the efficiency of your HVAC system. When dirt, dust, and other debris accumulate on the filter, it hampers airflow resulting in uneven cooling or heating.

Solution: Regularly inspect and change your air filters every one to three months, depending on their type and your home's air quality.

2. Faulty Thermostat

A malfunctioning thermostat could cause the HVAC unit not to produce enough warm or cool air. It can lead to incorrect temperature readings leading to insufficient heating or cooling.

Solution: Regularly check your thermostat settings, replace batteries if necessary, or consult with a professional for advanced troubleshooting.

3. Leaking Ducts

Ductwork carries conditioned air throughout your home. However, leaks or blockages can prevent adequate distribution of warm or cool air.

Solution: Arrange for professional duct cleaning services at least once every year. This service will help keep ducts clear of obstructions and seal any leaks.

4. Low Refrigerant Levels

For AC units, low refrigerant levels could hamper cooling performance significantly.

Solution: Check refrigerant levels regularly and refill it as needed with help from an HVAC technician.

5. Old or Worn-out Components

Older systems or parts that are worn out may not perform efficiently causing inadequate heating/cooling

Solution: Regular maintenance helps catch worn-out components before they lead to major problems. Replacing old systems with energy-efficient ones can also boost performance significantly.

Understanding these common reasons can help you troubleshoot your HVAC system. However, if the issue persists after trying these solutions, it would be prudent to call in a professional technician. They can perform an in-depth analysis of your system and offer expert solutions to restore its optimal function. Regular preventive maintenance is also advisable to keep the system functioning efficiently for longer periods.

While the above solutions can help resolve temporary issues, chronic problems may indicate the need for a system upgrade or replacement. Consider factors such as age of the system, frequency of repairs, and energy efficiency when making such decisions.

Remember, an efficient HVAC system not only provides comfort but also contributes to energy savings and environmental sustainability. Hence, investing time and resources in maintaining its performance is a worthwhile endeavor.


The efficiency of your HVAC (Heating, Ventilation, and Air Conditioning) system plays a significant role in maintaining the comfort levels of your home and the cost of your energy bills. There are several strategies homeowners can use to improve the energy efficiency of their HVAC system.

Regular Maintenance

One of the most effective ways to maintain peak performance is by having regular maintenance checks. Scheduled tune-ups can identify potential issues before they escalate into costly repairs or replacements.

  • Clean or replace air filters every 1-3 months

  • Adjust blower components for proper airflow

  • Tighten all electrical connections

  • Check thermostat settings to ensure they’re programmed for optimal energy use

System Upgrade

The older your system, the less efficient it becomes. Consider upgrading to a high-efficiency model if your HVAC system is over ten years old. High-efficiency systems may come with a higher upfront cost but will save more money in the long run due to lower energy consumption.

Insulation and Sealing

Proper insulation and sealing can significantly contribute to your HVAC system's efficiency. This process prevents cool or warm air from escaping through cracks, windows, doors, or other openings in your house, reducing workload on your HVAC system.

  • Insulate walls and attics

  • Seal windows and doors

  • Caulk or weatherstrip any leaks around windows and doors

Use of Programmable Thermostats

A programmable thermostat allows you to control your home's temperature at different times throughout the day without constant manual adjustments. You can set it at a higher temperature during working hours when no one is home and lower it just before everyone arrives back.

Size Matters

Having an appropriately sized HVAC unit for your home greatly influences its efficiency level. A unit that is too large will cycle on and off frequently while one that is too small won’t fully condition your space on hot or cold days. Always consult with a professional when choosing an HVAC size that matches your requirements.

The above strategies are vital steps towards enhancing the energy efficiency of any HVAC system. Energy-efficient systems not only contribute towards reducing greenhouse gas emissions but also help homeowners save money on energy costs while keeping their homes comfortable year-round.


When it comes to HVAC systems, particularly air conditioning units, homeowners often find themselves in a dilemma between repairing an existing unit and replacing it with a new one. This decision is not always straightforward and involves several factors such as the age of the unit, frequency of repairs, energy-efficiency ratings, and overall costs. Evaluating these factors is crucial in understanding the value of AC replacement over time.

Understanding the Lifespan of Your AC Unit

The first consideration in your decision should be the age of your air conditioning unit. On average, a well-maintained system lasts between 15-20 years. However, if your system is nearing or has exceeded this range and you're experiencing constant breakdowns or reduced efficiency, it may be more cost-effective to replace rather than repair.

Frequency and Cost of Repairs

Another important factor to consider is how frequently you're having to schedule repair services for your air conditioner and how much these repairs are costing you. As a general rule, if the cost of repair exceeds 50% of the value of a new unit, it's probably time to consider replacement.

Energy Efficiency Considerations

Modern air conditioning units come equipped with higher energy efficiency ratings than their older counterparts due to technological advancements. By investing in a newer model, you may experience significant savings on your monthly energy bill which can offset the upfront cost over time.

Here's a simple comparison:


Old AC Unit

New AC Unit

Energy Efficiency



Monthly Energy Costs



Long term Savings



Comfort Levels

An old AC unit may struggle to maintain optimal indoor temperatures and humidity levels especially during peak summer months. A new one would not only ensure better comfort but also improve indoor air quality.

Warranty Benefits

New AC units usually come with a warranty that covers parts and labor for a certain period, providing you peace of mind and saving you from unexpected repair costs.

The value of AC replacement over time lies not just in financial savings but also in improved comfort, better air quality, and peace of mind. While the upfront cost might seem substantial, considering the long-term benefits can help make an informed decision.


At J Hood Services, we have partnered with the industry's top suppliers to provide various financing options for our customers.


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