Our Blog

How Do Heat Pumps Work?

Posted on: September 30, 2025

As heat pumps rapidly gain popularity in Virginia and across the United States, homeowners may find themselves even more intrigued by this traditional HVAC alternative. From their dual heating and cooling power to their environmental benefits, heat pumps offer many unique advantages to Northern Virginia homeowners that can improve overall comfort while reducing energy bills. […]

How Long Do Furnaces Last?

Posted on: August 26, 2025

How Long Do Furnaces Last? When winter hits Northern Virginia, your furnace works hard to keep your home warm and comfortable. But how long can you expect it to last before you’ll need a replacement? Here’s what homeowners should know about furnace lifespan, signs of aging, and ways to extend its life. Average Lifespan of […]

What Are the Most Common Questions About Air Conditioning?

Posted on: May 30, 2025

For over 25 years, Len The Plumber Heating & Air has helped thousands of Northern Virginia homeowners keep their homes cool and comfortable through the heat and humidity of summer. In the course of providing comprehensive AC services, our technicians have seen every type of air conditioning issue—and answered just about every question there is. […]

AC technician checking refrigerant levels

Why Is My Air Conditioning Unit Freezing Up?

Posted on: April 17, 2025

It’s a hot and muggy summer day when suddenly, you notice something odd. Your air conditioner is covered in ice. It might seem strange for an AC to freeze when temperatures are in the 100s, but this issue is surprisingly common. Here’s what causes your AC to freeze and how you can quickly get it […]

Avoid These Main Causes of Clogged Drains in Northern VA

Posted on: March 24, 2025

Clogged drains are a common and frustrating problem. Anything besides waste and toilet paper, including soap, food, and grease, can build up and cause blockages. Using your garbage disposal helps, but not everything belongs in it. Understanding what causes clogs and how to prevent them can save you time, money, and stress. Here are eight […]

Can I Use Ductless Mini-Splits to Heat a Home in Northern Virginia?

Posted on: February 28, 2025

Yes, you can use a ductless mini-split to heat your home in Northern Virginia. These advanced systems provide greater control over your electricity use, offering efficiency and convenience. Len The Plumber Heating & Air helps Northern Virginia residents install ductless mini-splits that offer heating and cooling, ensuring you stay warm and comfortable all winter. How […]

Are Northern Virginia Winters Hard on Outdoor Tankless Water Heaters?

Posted on: January 29, 2025

Winters in Northern Virginia can bring freezing temperatures that put your home’s plumbing systems to the test. While frozen pipes are a common concern, tankless water heaters face similar risks. With average winter lows in the upper 20s and occasional cold snaps that plunge temperatures into the teens, outdoor units are especially vulnerable. If your […]

2025 Freon Mandate Change & What It Means for Northern Virginia Residents

Posted on: December 18, 2024

The American Innovation and Manufacturing Act of 2020 will significantly change the refrigerants used in air conditioners, ductless mini-splits, and heat pumps starting in 2025. This initiative aims to phase out older, environmentally harmful refrigerants and replace them with more sustainable and energy-efficient alternatives. For homeowners in Northern Virginia, this transition means adopting newer HVAC […]

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