For LA & OC Custom Homes General Contractors

Get an HVAC Proposal Without the Back-and-Forth

Upload your plans and receive a professional HVAC proposal from a team with over 20 years of experience in custom homes and high-end residential construction.

Submit Blueprints for Custom Design & Estimate

No meetings & phone calls required. We start engineering layouts directly from your files.

The Workflow

From Blueprints to Site-Ready
Installation in 3 Simple Steps

Instant File Drop

Upload Your Plans

Drop your architectural PDFs directly into our portal. We bypass traditional engineering back-and-forth by evaluating your blueprints in-house, analyzing your specific structural footprints and Title 24 requirements from day one.

Fixed-Price Proposal

Review Your Custom Layout

We deliver a highly efficient, code-compliant HVAC design layout alongside a transparent, guaranteed bid. No hidden field corrections, no pricing surprises—just clear timelines and upfront expectations.

Precision Field Execution

Seamless Site Integration

Our C20-licensed crews arrive on-site fully synchronized with your framing and MEP milestones. We execute clean layouts, install specialized systems like VRF or hidden linear slot diffusers, and clear inspections on the first pass.

Track Record

What Builders Say About Working With Andes

Job site video

"Andes saved our timeline on the Malibu build."

Project walkthrough

"The custom linear diffusers look incredible."

Client review

"Never had to babysit their crew."

Inspection day

"Flawless Title 24 compliance."

VRF specialist

"Best VRF specialists in OC."

Beverly Hills project

"Design was ready before our pour cured."

Santa Monica build

"Zero change orders. Zero surprises."

Why Andes

Why Builders Choose Andes

98%

First-inspection pass rate across all LA & OC projects

4–7 days

Average bid turnaround, depending on project scale

In-House HVAC Design

Submit your plans. We design HVAC internally—faster coordination, fewer revisions, lower consulting costs.

Built for Custom Home Construction

We understand sequencing, trades, and high-end residential workflows. We stay aligned with your schedule.

Code-Compliant From Day One

Designed for California Title 24 and local requirements to reduce corrections and inspection delays.

One Point of Accountability

One project manager from design to final inspection. Clear communication throughout the build.

Secure File Portal

Submit Your Project Plans

Skip the data entry. Upload your architectural blueprints (PDF) and our estimating team will begin mapping your custom HVAC layout immediately.

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We've Got Your Request!

Expect a call or email from our estimating team within 1 business day. We look forward to working with you.

Bids returned within 4–7 business days, depending on project scale. No sales meetings required.