Quick answer: A home theater room costs $20,000–$100,000+ in Los Angeles depending on finish level, from a basic media room conversion to a high-end custom theater with premium AV and acoustic treatment. APLA Construction (CA Lic #1136359) handles this throughout Greater Los Angeles.
In the entertainment capital of the world, a dedicated home theater is one of the most sought-after upgrades for Los Angeles homeowners. Whether you are converting a spare room in Sherman Oaks, finishing a bonus space in Pasadena, or building out a media room in Brentwood, a professionally built theater adds comfort, entertainment value, and resale appeal. APLA Construction is a licensed LA general contractor (CA Lic #1136359) that designs and builds custom home theaters.
A home theater in Los Angeles typically costs between $20,000 and $100,000, depending on size, soundproofing, seating, and audio-visual equipment. A 2026 breakdown:
| Item | Typical Cost |
| Basic media room conversion | $20,000 to $35,000. Lighting, wiring, and a large screen or projector setup. |
| Mid-range dedicated theater | $35,000 to $65,000, with soundproofing, tiered seating, and acoustic treatment. |
| High-end custom theater | $65,000 to $100,000+, with premium AV, star-lit ceilings, and full room design. |
The biggest cost drivers are soundproofing and acoustic treatment, electrical and low-voltage wiring, tiered platform seating, HVAC for a sealed room, and the audio-visual package.
Converting an existing room is far cheaper than building an addition. Soundproofing to isolate the theater from the rest of the home, dedicated circuits, and integrated smart controls all raise the budget. Equipment can range from a few thousand dollars to a large share of the project.
Many home theaters are built during a larger remodel or basement or bonus-room finish, which is the most efficient time to run wiring and address insulation. Explore our home remodeling services to plan the full scope.
From modern media rooms in Manhattan Beach to cozy screening rooms in Studio City and Encino, we design the room around your space, seating goals, and equipment. We coordinate construction, electrical, and finishes so your AV installer can drop in a clean, wired-ready room.
If the project adds electrical circuits, alters walls, or changes HVAC, a permit is typically required. APLA handles permits when needed.
Quality soundproofing and acoustic treatment typically add $5,000 to $20,000 depending on room size and how much isolation you want.
Yes. Garages are a popular theater conversion because they are separate and easy to soundproof. We insulate, wire, and finish the space to code.
Most home theater builds take 4 to 10 weeks of construction, depending on soundproofing and finishes.
APLA Construction designs and builds custom home theaters across Los Angeles. Licensed CA Lic #1136359 — verify on CSLB. Call (818) 818-4419 or email info@aplaconstruction.com for a free estimate.