Duct Sealing Services in Las Vegas

More than 3,279+ 5-Star reviews

Your heating and cooling system depends on your ductwork to deliver conditioned air throughout your home. If your ducts have leaks, gaps, or loose connections, a significant amount of that air can escape before it ever reaches your living spaces. At Semper Fi Heating & Cooling, we provide professional duct sealing services that help improve airflow, reduce energy waste, and create more consistent comfort throughout your home.

Our experienced technicians inspect your ductwork, identify areas where conditioned air is being lost, and recommend effective sealing solutions designed to improve your HVAC system’s overall performance. By reducing air leaks, we help your heating and cooling equipment operate more efficiently while making your home more comfortable year-round.

Schedule a duct sealing consultation with Semper Fi Heating & Cooling and discover how improving your ductwork can enhance comfort and energy efficiency throughout your Las Vegas home.

Exposed air ducts during duct sealing.

Benefits of Duct Sealing

Your ductwork is responsible for delivering heated and cooled air throughout your home. When leaks or gaps develop, your HVAC system has to work harder to maintain a comfortable temperature. Professional duct sealing helps improve system performance while creating a more comfortable and energy-efficient home.

  • Reduces energy loss

  • Improves airflow throughout your home

  • Creates more consistent indoor temperatures

  • Helps lower monthly energy bills

  • Reduces strain on your HVAC system

  • Minimizes hot and cold spots

  • Supports better indoor air quality

  • Improves overall home comfort

Our Duct Sealing Services

As part of our complete home comfort services, Semper Fi Heating & Cooling helps homeowners improve the performance of their HVAC systems by addressing one of the most common sources of energy loss: leaky ductwork. Our duct sealing services are designed to improve airflow, increase efficiency, and create more consistent temperatures throughout your home. After evaluating your duct system, we’ll recommend the best solution to help you get the most from your heating and cooling equipment.

Ductwork Inspection

Every service begins with a thorough inspection of your ductwork. We identify leaks, loose connections, and other areas where conditioned air may be escaping before it reaches your living spaces.

Professional Duct Sealing

Our technicians seal gaps and leaks throughout your duct system to reduce energy loss, improve airflow, and help your HVAC system operate more efficiently.

Airflow & Efficiency Improvements

Sealing your ductwork allows heated and cooled air to reach the rooms where it’s needed most. For even greater energy savings, many homeowners choose to combine duct sealing with attic insulation to reduce heat transfer and improve overall home efficiency.

System Performance Evaluation

Once the work is complete, we verify that your duct system is performing properly and delivering more consistent airflow throughout your home, helping you enjoy greater comfort in every season.

Our Duct Sealing Process

Improving your home’s airflow starts with a careful evaluation of your ductwork. Our process is simple, efficient, and focused on delivering lasting results.

  1. Inspect Your Ductwork: We identify leaks, gaps, and loose connections that may be affecting your system’s performance.

  2. Recommend the Right Solution: We’ll explain our findings and recommend the best approach to improve airflow and efficiency.

  3. Seal the Duct System: Our technicians professionally seal problem areas to reduce air loss and improve system performance.

  4. Test the Results: Before we finish, we verify your ductwork is delivering conditioned air more efficiently throughout your home.

Schedule service today!

Our veteran-run team delivers solutions when you need them most.

Why Choose Semper Fi Heating & Cooling for Duct Sealing?

Leaky ductwork isn’t something most homeowners can see, but it can have a noticeable impact on comfort, energy efficiency, and HVAC performance. At Semper Fi Heating & Cooling, we don’t believe in guessing. We take the time to evaluate your duct system, identify where conditioned air is being lost, and recommend practical solutions that help your home perform more efficiently.

  • We Find the Source of the Problem: Instead of masking symptoms like uneven temperatures, we identify the leaks and gaps that may be reducing your system’s performance.

  • Comfort Is Our Goal: Properly sealed ductwork helps deliver heated and cooled air where it’s intended, creating more consistent temperatures throughout your home.

  • Solutions That Make Sense: We recommend duct sealing only when it will provide a meaningful improvement in comfort, efficiency, or system performance.

  • Attention to Every Detail: Our technicians carefully inspect and seal your ductwork to help maximize the effectiveness of your heating and cooling system.

  • Financing & Exclusive Savings: We offer GoodLeap financing for qualified customers, along with valuable coupons and a 20% military and veteran discount to help make home comfort improvements more affordable.

  • Always Faithful: As a veteran-run and operated company, we’re committed to honest recommendations, quality workmanship, and treating every home with the care and respect it deserves.

Stop Letting Conditioned Air Go to Waste

Your HVAC system shouldn’t have to work harder because of leaky ductwork. Sealing your ducts is a simple upgrade that can improve airflow, increase energy efficiency, and create a more comfortable home throughout the year. Schedule a duct sealing consultation with Semper Fi Heating & Cooling and let our team help you get more out of your heating and cooling system.

Special Offer

FREE

Diagnostic Inspection

With AC repair service.

Offer cannot be combined with any other promotions, discounts, or special offers. Terms and conditions may apply.
Expires: Oct 31, 2026

Contact

Name(Required)
Frequently asked questions

Confidence Starts With Semper Fi

Have another question? Our veteran-run team is ready to respond!
Review Highlights
Customers consistently praise the team's professionalism, expertise, and respectful approach to service—technicians arrive on time, listen carefully to concerns, explain work thoroughly without pressure, and document everything transparently so customers understand exactly what's being done. Beyond skilled workmanship, what sets this company apart is the genuine care shown to every customer: the staff go above and beyond with free advice, flexible financing tailored to individual circumstances, and unwavering support through follow-up communication and maintenance scheduling. The combination of fair pricing, comprehensive warranties, same-day or next-day service, and the company's commitment to serving veterans and first responders creates an experience customers describe as exceptional, earning strong recommendations and lasting loyalty.

Based on 3,279+ Reviews

Roxanne Perez
7 hours ago
Google logo: a bold multicolor 'G' in blue, red, yellow, and green.
Very supportive very educational great service .attention to detail.
Donna Tullar
8 hours ago
Google logo: a bold multicolor 'G' in blue, red, yellow, and green.
Isaiah did a great job flushing out my hot water heater. He was personable and professional while pointing out the reasons I needed to consider replacing my 18 yo unit. $49 was a great deal imo. I’d use Semper Fi again. ⭐️⭐️⭐️⭐️⭐️
Thomas Norcott
10 hours ago
Google logo: a bold multicolor 'G' in blue, red, yellow, and green.
They answered the phone on a holiday weekend, had a tech onsite in a few hours, brought in a temporary solution for the night and had people replacing the system the next day.
James M
17 hours ago
Google logo: a bold multicolor 'G' in blue, red, yellow, and green.
Same day service, technician was out to the house quick and diagnosed the problem. Within a few hours I had 2 technicians show up with all new equipment and started doing a whole system change. They stayed until the job was finished. Victor and Jason were very dedicated to ensuring the job was done correctly. So far a great experience with semper fi!
ricci alvarez
20 hours ago
Google logo: a bold multicolor 'G' in blue, red, yellow, and green.
Tyrik was great! Super helpful and thorough.
KnI Dalmacio
20 hours ago
Google logo: a bold multicolor 'G' in blue, red, yellow, and green.
COLAN was very helpful and very thorough. He took the time to explain and answer all my questions. Very patient, professional and knowledgeable.
Shannon
20 hours ago
Google logo: a bold multicolor 'G' in blue, red, yellow, and green.
COLAN was very helpful and very thorough. He took the time to explain and answer all my questions. Very patient, professional and knowledgeable.
Dwight Adams
21 hours ago
Google logo: a bold multicolor 'G' in blue, red, yellow, and green.
What a great experience. Dwayne walked me through everything and was very polite. Semper Fi is the only company I will be using.
srgryph
22 hours ago
Google logo: a bold multicolor 'G' in blue, red, yellow, and green.
Marc was a pleasure to work with. Exceptionally thorough. Greatly appreciated the tune-up on my units today. Thank you!!!!!
Magan Suter
22 hours ago
Google logo: a bold multicolor 'G' in blue, red, yellow, and green.
Zach was our ac guy, he is wonderful, hopefully you get his as well!
B Smith
1 day ago
Google logo: a bold multicolor 'G' in blue, red, yellow, and green.
My technician, Casey was on time, courteous, and was knowledgeable!
Oscar Lopez
1 day ago
Google logo: a bold multicolor 'G' in blue, red, yellow, and green.
Jamal was great! He definitely went over things that needed work around the house.
Amber Esparza
1 day ago
Google logo: a bold multicolor 'G' in blue, red, yellow, and green.
Garza & Daylan were extremely knowledgeable and professional! They came & did an install for us with NO complaints. This is our 2nd unit with semper fi & we couldn’t be happier.
Dennis Leclair
1 day ago
Google logo: a bold multicolor 'G' in blue, red, yellow, and green.
Great experience with the entire team. Ended up with three new HVAC systems and two tankless water heaters. Follow up has been phenomenal.
Megan Dimas
1 day ago
Google logo: a bold multicolor 'G' in blue, red, yellow, and green.
Semper Fi was absolutely amazing! The tech was fast, precise and taught me a few things to help the life of my unit!
Christie Ryan
1 day ago
Google logo: a bold multicolor 'G' in blue, red, yellow, and green.
Joey and Danny provided great service, very honest, detailed oriented and friendly. We appreciate everything you have done for us.
Ted Saltmarsh
1 day ago
Google logo: a bold multicolor 'G' in blue, red, yellow, and green.
Brandon and Andrew were wonderful workers. They were extremely caring from the moment they came into my house till they left. They took time to make sure our unit was working at tip top shape and completely explained how my A/C works. They took before and after pictures of the places they worked on and were very proactive with Cleaning. As a senior on a fixed income the price for the tune up was extremely affordable. I cannot express how thankful I am to Brandon and Andrew for their mindfulness and honesty through this appointment. They are truly valued team members. Thank you Semper Fi for putting veterans/ military families first.
Patriotic Semper Fi service van advertising heating, cooling, and plumbing with blue stars and red stripes.

Contact Us Today for a Free Estimate or a $17.75 Tune-Up

Semper Fi Heating & Cooling provides 24/7 heating, cooling, plumbing, and home comfort services backed by quality workmanship and a veteran-run commitment to exceptional service. Call or schedule your service today!
Cartoon bulldog mascot wearing a tan Marine cap labeled 'Semper Fi,' with a black jacket, dog tags, and an American flag patch.