MARYLAND & DC

(301) 338-6748

VIRGINIA

(703) 289-0886

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We're excited to welcome Nice Heating and Air to the Michael Bonsby family!

Learn more about the Partnership here

Sheet Metal Fabrication & Ductwork Installation in Maryland and Washington, DC

Your home’s comfort and energy efficiency rely heavily on the quality of your ductwork. Even the most advanced furnace or air conditioner can’t perform efficiently if the duct system that distributes conditioned air is leaking, undersized, or poorly installed. At Michael Bonsby HVAC, Plumbing & Electrical, we specialize in precision ductwork design, fabrication, and installation that maximizes airflow, boosts performance, and ensures balanced comfort in every room of your home.

With over two decades of experience serving Maryland, Washington, DC, and Northern Virginia, our team designs and installs high-quality duct systems that meet today’s energy efficiency standards. We take into account your home’s size, layout, and HVAC specifications to deliver a perfectly tailored solution.

Contact us today or call 301-245-2008 to schedule your professional ductwork installation, replacement, or sealing service with the experts at Michael Bonsby HVAC, Plumbing & Electrical.

Schedule Service Today!

Ductwork Installation Services in Maryland & Washington, DC

Properly designed and installed ductwork is essential for achieving optimal HVAC performance. Poor duct design leads to uneven temperatures, higher energy bills, and premature wear on your heating and cooling systems. Our expert installers use precise load calculations and air distribution models to ensure your duct system delivers air efficiently throughout your entire home.

Common ductwork issues we resolve include:

  • Improper sizing: Ducts that are too large can cause airflow stagnation, while ducts that are too narrow can increase static pressure and force your system to overwork.
  • Air leaks and poor sealing: Even small gaps or holes can cause a loss of up to 30% of conditioned air, drastically reducing efficiency.
  • Poor layout: Duct systems with sharp bends or long runs can restrict airflow and create inconsistent temperatures across your home.

Whether you’re building a new home, upgrading an old HVAC system, or replacing aging ducts, our team can design and install custom ductwork to maximize comfort and performance.

Custom Sheet Metal Fabrication

Unlike many contractors who rely on third-party suppliers, Michael Bonsby HVAC, Plumbing & Electrical performs all sheet metal fabrication in-house. This allows us to maintain total control over the quality, precision, and performance of your ductwork system.

Our skilled fabricators use advanced machinery to create customized ducts that fit your system perfectly—ensuring optimal airflow and long-lasting durability. Every piece of sheet metal is measured, cut, and assembled to meet the exact requirements of your HVAC equipment and home layout. With our in-house duct fabrication, you can trust that your installation will be both efficient and built to last.

Duct Sealing & Efficiency Optimization

Even if your ductwork is properly installed, leaks can develop over time due to age, vibration, or temperature fluctuations. Leaky ducts force your furnace or air conditioner to work harder, wasting energy and reducing system lifespan. Our duct sealing specialists use industry-leading methods to identify leaks, repair damaged sections, and restore your duct system to peak efficiency.

Our duct sealing process includes:

  • Thorough inspection using airflow testing and pressure diagnostics
  • Sealing of joints, seams, and connections with durable, non-toxic materials
  • Insulation of exposed ducts to prevent heat loss or gain
  • Verification testing to confirm improved performance

By improving the integrity of your duct system, you can experience lower utility bills, quieter operation, and consistent temperatures throughout your home.

Benefits of Professionally Installed Ductwork

Investing in high-quality ductwork installation offers benefits that go beyond just heating and cooling efficiency. With a properly designed and sealed duct system, you can enjoy:

  • Energy savings: Reduce air loss and boost system efficiency by up to 30%.
  • Improved indoor air quality: Prevent contaminants like dust and allergens from entering your air stream.
  • Better comfort control: Maintain even temperatures and consistent airflow in every room.
  • Longer HVAC lifespan: Reduce strain on your furnace and air conditioner by improving airflow balance.
  • Quiet operation: Eliminate rattling or whistling noises caused by poorly fitted ducts.

Why Choose Michael Bonsby for Ductwork Services?

At Michael Bonsby HVAC, Plumbing & Electrical, our commitment to craftsmanship and energy efficiency sets us apart. We take pride in helping homeowners throughout Montgomery County and the DC area achieve better comfort and savings through precision ductwork design and installation.

  • Family-owned and locally operated for over 20 years
  • Licensed, bonded, and insured technicians
  • Accurate load calculations for balanced airflow
  • In-house sheet metal fabrication for custom quality
  • Energy-efficient duct sealing and insulation options
  • Transparent pricing and free estimates
  • 24-hour HVAC repair and emergency support
  • Member of the Air Conditioning Contractors of America (ACCA)

Schedule Ductwork Installation or Repair in Maryland & DC

Whether you’re installing a new HVAC system, remodeling your home, or replacing old ducts, our experts are here to help. We design, fabricate, and install high-performance ductwork systems built for your home’s specific needs—ensuring comfort, efficiency, and reliability for years to come.

Contact Michael Bonsby HVAC, Plumbing & Electrical today to schedule ductwork installation or duct sealing services in Maryland, DC, or Northern Virginia. Call 301-245-2008 for a free estimate.

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Looking for trusted ductwork installation and sealing experts near you? Visit our Google Business Profile to view directions, reviews, and more about Michael Bonsby HVAC, Plumbing & Electrical in Gaithersburg, MD.

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Two for the price of One!

AC & Furnace Tune-Up for only $89
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Expires 12/30/2025
Other restrictions may apply. Cannot be used in combination with any other offer. Valid on one system only, excludes ductless and boilers.©2026 Michael Bonsby

Furnace Tune-Up for

only $69
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Expires 12/30/2025
Other restrictions may apply. Cannot be used in combination with any other offer. Valid on one system only, excludes ductless and boilers.©2026 Michael Bonsby

any plumbing repair over $350

Free Hose Bib Winterization with
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Other restrictions may apply. Cannot be used in combination with any other offer. Valid with a plumbing repair of $350 or more.©2026 Michael Bonsby
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