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Sellado de ductos en Los Angeles

Sellado profesional de ductos — detenga la pérdida de energía y mejore el confort en toda la casa.

(323) 970-3113Free estimate
CSLB #1073586
CA Licensed
5.0 Stars
300+ Reviews
Owner-Led
Local LA team
Same Day
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About this service

What to expect from our duct sealing team

### Qué logra el sellado de ductos El sellado de ductos es una de las mejoras de energía para el hogar con mayor retorno de inversión disponible para los propietarios en Los Angeles. Cuando el aire acondicionado se fuga hacia el ático o las cavidades de las paredes antes de llegar a los espacios habitables, usted está pagando por acondicionar espacios que no ocupa. Estudios en hogares de California muestran consistentemente entre un 20 y 30% de fuga de ductos en casas antiguas, y cada punto porcentual de reducción de fugas se refleja directamente en su recibo de luz.

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CSLB #1073586
Same-day service
5.0★ Google · 300+ reviews

Descripción general

  • ### Sellado manual vs. Aeroseal LC Heating & Air ofrece dos métodos de sellado de ductos. El sellado manual utiliza masilla (un sellador duradero y flexible aplicado a mano) y cinta de aluminio en uniones accesibles de ductos, derivaciones, plenums de suministro y retorno, y puntos de conexión. Este es el enfoque correcto cuando las ubicaciones con fugas significativas son accesibles y el sistema de ductos se encuentra en buenas condiciones estructurales. El sellado interno Aeroseal es nuestra solución para sistemas de ductos donde las fugas significativas están distribuidas por todo el sistema en ubicaciones que no son accesibles manualmente — sella de adentro hacia afuera usando un aerosol de polímero presurizado que se deposita y sella los puntos de fuga a medida que el aire pasa a través de ellos.
  • ### Código de Energía de California y Sellado de Ductos El Título 24 de California requiere pruebas de sellado de ductos (prueba de duct blaster) como parte de cualquier permiso de reemplazo de HVAC — y requiere que los sistemas que no pasen la prueba sean sellados para cumplir con el estándar de fugas antes de la aprobación del permiso. Si ha reemplazado equipo de HVAC sin permiso, o tuvo un reemplazo con permiso que no incluyó pruebas de ductos, su sistema puede tener fugas significativas sin sellar.
  • ### Qué notará después del sellado de ductos Los propietarios reportan consistentemente tres mejoras inmediatas después del sellado de ductos: las habitaciones que antes eran difíciles de acondicionar ahora son cómodas, el sistema HVAC funciona durante ciclos notablemente más cortos para alcanzar la temperatura programada en el termostato, y los recibos de servicios públicos disminuyen. Estas mejoras son permanentes — la masilla y Aeroseal aplicados correctamente están clasificados para toda la vida útil del sistema de ductos.

Our Service Benefits

Ahorro de energía inmediato
Sellar entre un 20 y 30% de fuga en ductos típicamente reduce el uso de energía del sistema HVAC entre un 15 y 25%. Con las tarifas eléctricas de LA, la recuperación de la inversión suele ser en menos de 2 años.
Ambos métodos disponibles
Sellado manual con masilla para fugas accesibles, sellado interno Aeroseal para fugas distribuidas en lugares inaccesibles — usamos el enfoque correcto para cada sistema.
Cumplimiento del Título 24 de CA
Realizamos pruebas de duct blaster antes y después del sellado y proporcionamos la documentación para el cumplimiento de permisos.
Solución permanente
La masilla y Aeroseal aplicados correctamente están clasificados para toda la vida útil del sistema de ductos — no es una solución temporal que se degrada con el tiempo.

Duct Sealing Cost in Los Angeles

Pricing ranges for common duct sealing services. Your actual cost depends on equipment, complexity, and home configuration. We provide an exact written estimate before any work begins.

Inspección de ductos
$125–$200
Limpieza de ductos (toda la casa)
$400–$900
Sellado de ductos
$1,000–$3,000
Reparación o reemplazo de ductos
$500–$5,000

Service calls start at $125. Prices include parts and labor unless noted. Financing available on equipment installations. Learn about financing →

What Los Angeles Homeowners Say

Cambiamos de caldera de gas a bomba de calor. LC gestionó el papeleo de TECH Clean California — obtuvimos un reembolso de $2,500 más el crédito federal.

M
Michael D.Eagle Rock, CA

LC reemplazó todo nuestro sistema HVAC. Leo nos explicó cada opción sin presionarnos. El equipo de instalación fue profesional y limpio.

D
David K.Pasadena, CA

LC descubrió que nuestros ductos se habían separado en el ático. Repararon todo y ahora cada habitación se calienta por igual. Profesionales y transparentes.

S
Sarah T.Studio City, CA

Brands We Service & Install for Duct Sealing

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Warning signs

Signs you need duct sealing

Recibos de energía desproporcionadamente altos para el tamaño y uso de su hogar
Temperaturas desiguales persistentes entre habitaciones a pesar de tener un sistema HVAC funcionando
Acumulación inusual de polvo en las rejillas de suministro o cerca de las uniones de los ductos
El sistema HVAC funciona constantemente pero le cuesta alcanzar la temperatura programada en el termostato
Casa antigua con ductos flexibles o de lámina metálica originales que nunca han sido inspeccionados
Se está preparando para reemplazar su sistema HVAC y quiere maximizar la eficiencia del equipo nuevo

Not sure if you need service? Call us — we'll give you an honest answer.

(323) 970-3113 — Free diagnosis
How it works

Our duct sealing process

01

Prévia de fuga de ductos antes del sellado

Realizamos una prueba de duct blaster para cuantificar las fugas existentes como porcentaje del flujo de aire del sistema.

02

Selección del método de sellado

Con base en la cantidad de fugas, el tipo de ducto y la accesibilidad, recomendamos sellado manual, Aeroseal o una combinación de ambos.

03

Sellado de ductos

Aplicamos masilla en todas las uniones y plenums accesibles, o configuramos y ejecutamos el proceso Aeroseal para sellado interno.

04

Prueba de verificación posterior al sellado

Volvemos a realizar la prueba de duct blaster y le proporcionamos los números de fugas antes y después como documentación escrita.

Customer Reviews

300+ verified reviews

5.0
Google Reviews196 reviews on Google
SM
Sharon Meoded
Los Angeles, CA

Lior and his team installed an AC unit in my room that doesn’t have central AC and it works amazing! They were so professional and cleaned up fully after themselves. He kept me in the loop the entire process and when he came out prior to installing showed me step by step what they would be doing! Highly recommend ! Super professional

Google Review
PW
Patricia Williams
Los Angeles, CA

LC Heating and Air is a reliable, affordable solution for all your central air and heating needs. I am an out of town landlord and it can be difficult to find the assistance I need. LC Heating and Air took care of my tenants issues quickly and explained all issues before making necessary repairs. I will def use them again if need be!

Google Review
NE
Naomi Eagleson
Los Angeles, CA

I hired LC Heating & AC to replace the drain pumps in our Mitsubishi Mini Splits and clean the condenser and was pleased with the service. Leo was responsive, thorough, and professional. I chose this company based on the glowing reviews I read online and wasn't disappointed. My husband and I look forward to using our AC this summer!

Google Review
OI
Osher Itzhaki
Los Angeles, CA

Amazing service!! I called LC heating and air and was fortunate enough to have scheduled them for a same day appointment . Leo arrived on time and was super friendly, polite and fixed my ax in no time . The price was fair and he explained what further steps I shouted take to keep my ac unit running for more years Thank you LC!!!

Google Review
JS
Justin Shapiro
West Hollywood, CA

Great experience!!’ Leo came to my house in West Hollywood at 9pm !! I had an emergency, my ac stopped working out of no where i called LC heating and air from the phone call with the office to the time the tech came the service was just amazing. Leo came and had my ac running in no time. Thank you so much !! Highly recommended

Google Review
GH
Greg Haroutunian
Los Angeles, CA

Sunday morning discovered AC in the unit is not working, called everywhere, no one wanted to come the same day. LC Heating came the same day, fixed the problem which apparently wasn't easy to figure out. Very professional, calm and confident, pleasant to work with. Leo was the lead guy. Great experience, highly recommend it!

Google Review
AV
Adam Valdies
Los Angeles, CA

Leo and his team were amazing! I am so glad we called them to handle our AC/Heating issue. The problem was not clear at first and required substantial troubleshooting but Leo was extremely communicative and very professional throughout! He figured out the problem and we cannot thank him enough! Highly recommend!

Google Review
LO
Leeyam Ohayon
Los Angeles, CA

I called LC Heating & Air when my heating unit stopped working. He came quickly and fixed the problem fast. The technician was very kind and experienced. He explained the problem to me and gave me maintenance tips for the future. I definitely recommend LC Heating and Air if you're in need of these services.

Google Review
AY
ariel. yona.
Los Angeles, CA

Amazingly service me heater broke down and I was looking for a local company in my neighborhood. I found LC heating and air I can’t express in words how pleased I was with this company the owner Leo came out was very professional friendly and fixed my heater in no time !!! Highly recommended

Google Review
KB
kevin benoit
Los Angeles, CA

I cannot recommend this company more. They came, assess my issue and then ordered the right parts from the company and made an amazing install and transform my AC unit into a smart controlled AC unit which no Other HVAC company was able to do, or wanted to take the time that it took to do it

Google Review
SM
Sharon Meoded
Los Angeles, CA

Lior and his team installed an AC unit in my room that doesn’t have central AC and it works amazing! They were so professional and cleaned up fully after themselves. He kept me in the loop the entire process and when he came out prior to installing showed me step by step what they would be doing! Highly recommend ! Super professional

Google Review
PW
Patricia Williams
Los Angeles, CA

LC Heating and Air is a reliable, affordable solution for all your central air and heating needs. I am an out of town landlord and it can be difficult to find the assistance I need. LC Heating and Air took care of my tenants issues quickly and explained all issues before making necessary repairs. I will def use them again if need be!

Google Review
NE
Naomi Eagleson
Los Angeles, CA

I hired LC Heating & AC to replace the drain pumps in our Mitsubishi Mini Splits and clean the condenser and was pleased with the service. Leo was responsive, thorough, and professional. I chose this company based on the glowing reviews I read online and wasn't disappointed. My husband and I look forward to using our AC this summer!

Google Review
OI
Osher Itzhaki
Los Angeles, CA

Amazing service!! I called LC heating and air and was fortunate enough to have scheduled them for a same day appointment . Leo arrived on time and was super friendly, polite and fixed my ax in no time . The price was fair and he explained what further steps I shouted take to keep my ac unit running for more years Thank you LC!!!

Google Review
JS
Justin Shapiro
West Hollywood, CA

Great experience!!’ Leo came to my house in West Hollywood at 9pm !! I had an emergency, my ac stopped working out of no where i called LC heating and air from the phone call with the office to the time the tech came the service was just amazing. Leo came and had my ac running in no time. Thank you so much !! Highly recommended

Google Review
GH
Greg Haroutunian
Los Angeles, CA

Sunday morning discovered AC in the unit is not working, called everywhere, no one wanted to come the same day. LC Heating came the same day, fixed the problem which apparently wasn't easy to figure out. Very professional, calm and confident, pleasant to work with. Leo was the lead guy. Great experience, highly recommend it!

Google Review
AV
Adam Valdies
Los Angeles, CA

Leo and his team were amazing! I am so glad we called them to handle our AC/Heating issue. The problem was not clear at first and required substantial troubleshooting but Leo was extremely communicative and very professional throughout! He figured out the problem and we cannot thank him enough! Highly recommend!

Google Review
LO
Leeyam Ohayon
Los Angeles, CA

I called LC Heating & Air when my heating unit stopped working. He came quickly and fixed the problem fast. The technician was very kind and experienced. He explained the problem to me and gave me maintenance tips for the future. I definitely recommend LC Heating and Air if you're in need of these services.

Google Review
AY
ariel. yona.
Los Angeles, CA

Amazingly service me heater broke down and I was looking for a local company in my neighborhood. I found LC heating and air I can’t express in words how pleased I was with this company the owner Leo came out was very professional friendly and fixed my heater in no time !!! Highly recommended

Google Review
KB
kevin benoit
Los Angeles, CA

I cannot recommend this company more. They came, assess my issue and then ordered the right parts from the company and made an amazing install and transform my AC unit into a smart controlled AC unit which no Other HVAC company was able to do, or wanted to take the time that it took to do it

Google Review
Review us on GoogleReview us on Yelp
Service areas

Duct Sealing — by city

Licensed duct sealing throughout Greater Los Angeles — select your city for neighborhood-specific service details.

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FAQ

Common questions about duct sealing in Los Angeles

¿Cuánta energía puede ahorrar el sellado de ductos?
Estudios en hogares de California encuentran ahorros promedio de entre un 15 y 25% del uso de energía del sistema HVAC después de un sellado profesional de ductos. El ahorro real depende de su tasa de fuga previa al sellado — una casa con 30% de fuga puede ahorrar significativamente más que una casa con 10% de fuga. Cuantificamos su fuga específica antes del sellado para que pueda estimar su ahorro esperado.
¿Cuál es la diferencia entre masilla y cinta para ductos?
La "cinta para ductos" estándar (la cinta plateada de tela) no es adecuada para ductos de HVAC — se seca y falla en pocos años. La masilla es un sellador espeso y flexible que se aplica con brocha o a mano, que permanece flexible y se adhiere de forma permanente. La cinta de HVAC con respaldo de aluminio (no la cinta de tela) también es adecuada para ciertas aplicaciones. Usamos masilla en uniones, plenums y conexiones donde proporcionará un sello duradero.
¿Cómo funciona Aeroseal?
Aeroseal presuriza su sistema de ductos e inyecta una fina niebla de partículas de polímero de acetato de vinilo. A medida que el aire escapa por las fugas, las partículas se acumulan en los bordes de las aberturas y las sellan progresivamente — el mismo mecanismo por el cual una herida sana. Se pueden sellar fugas de hasta 5/8". Una computadora monitorea la reducción de fugas en tiempo real y se detiene cuando se alcanza el objetivo.
¿Es seguro Aeroseal?
Sí. El polímero de acetato de vinilo utilizado en Aeroseal es el mismo material usado en chicle y muchos productos alimenticios. No es tóxico y ha sido probado para evaluar su impacto en la calidad del aire interior. El proceso Aeroseal incluye una fase de prueba que confirma que el interior de sus ductos está limpio antes del sellado, y el sellante permanece en las paredes del ducto, no en la corriente de aire después del curado.
¿Cuánto cuesta el sellado de ductos en Los Angeles?
Sellado manual con masilla de secciones accesibles de ductos: $400–$1,200 dependiendo del tamaño del sistema y la accesibilidad. Sellado interno Aeroseal: $1,500–$3,000 para una casa típica de un solo piso. Ambos incluyen pruebas de duct blaster antes y después. Proporcionamos un presupuesto por escrito después del diagnóstico previo al sellado.
¿El sellado de ductos requiere permisos en California?
El sellado de ductos por sí solo como actividad de mantenimiento generalmente no requiere permiso. Cuando el sellado de ductos se realiza como parte de un proyecto de reemplazo de HVAC, el permiso de reemplazo típicamente requiere pruebas de fuga de ductos y documentación. Le asesoramos sobre los requisitos aplicables para su proyecto específico.
¿Cuánto tiempo toma el sellado de ductos?
Sellado manual de un sistema de ductos típico de una casa unifamiliar: 4–8 horas. Proceso Aeroseal: 4–6 horas para el sellado en sí más el tiempo de configuración y pruebas. Completamos la mayoría de los proyectos residenciales de sellado de ductos en un solo día.
¿Necesito salir de mi casa durante Aeroseal?
Recomendamos desocupar la casa durante el proceso de inyección de Aeroseal (aproximadamente 60–90 minutos) como precaución, aunque el material no es tóxico. Puede regresar tan pronto como el proceso termine y el sistema haya funcionado brevemente para eliminar cualquier partícula residual de la corriente de aire.
Verified Reviews

What customers say about duct sealing

Verified reviews from Los Angeles homeowners who used our duct sealing service.

5.0 ★ Google
300+ verified reviews

LC did a full duct inspection and found we were losing 35% of our conditioned air through disconnected joints in the attic. After sealing and repairing, the difference was immediate — better airflow, lower bills, no more hot spots.

L
Linda F.
Northridge, CA · Sep 2025

Our furnace wasn't heating evenly upstairs. LC found that half of our ductwork in the attic had separated and was blowing hot air into the attic. Repaired everything and now every room heats equally. Professional and transparent.

S
Sarah T.
Studio City, CA · Nov 2025

Had LC install a Daikin mini split in our 1940s bungalow that never had AC. The work was clean, the unit is incredibly quiet, and our bedroom finally stays cool in summer. Highly recommend.

J
Jennifer L.
Hollywood, CA · Jan 2026
Read all 300+ Google reviews →
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