About Us

Your comfort and safety guide every decision we make.

A San Diego Team Built on Trust, Speed, and Quality Service

At Instate Service Group, San Diego’s Home Service Specialist, we were founded on a simple idea: homeowners deserve fast, reliable, and transparent plumbing and HVAC services in San Diego,without upselling, hidden fees, or low-quality workmanship. Our team is committed to delivering solutions you can trust, backed by licensed professionals who prioritize your comfort and safety.

ISG Instate Service Group is the San Diego Service Specialist for HVAC and plumbing services. We provide professional AC repair, AC installation, AC replacement, heating repair, and residential plumbing services across La Mesa, Serra Mesa, Clairemont, Eastlake, and Chula Vista. Our licensed and insured technicians offer fast response times and flat-rate good, better, and best pricing so homeowners always know their options. We specialize in energy-efficient AC replacements, air conditioning repair for older homes, plumbing repairs, and water heater services. Financing is available. Call today for a free AC replacement estimate or same-day service.

To provide dependable, high-quality HVAC and plumbing services with unmatched professionalism, rapid response times, and honest, upfront pricing,helping San Diego homeowners keep their homes safe, efficient, and comfortable year-round.

  1. Transparency :  Clear communication, upfront pricing, and no surprises.
  2. Reliability :  We arrive when we say we will and complete work with consistency and care.
  3. Speed : Fast response times and same-day service options for urgent needs.
  4. Professionalism : Licensed, insured technicians who respect your home and deliver expert-level workmanship.
  5. Customer-First Service : Your comfort and safety guide every decision we make.

 

Your Home’s Comfort Today
2005

Founded

Started with a mission to create eco-friendly, high-performance cooling solutions for modern needs.

2008

First Product Launch

Released energy-efficient air coolers using inverter technology, reducing electricity usage by over 30%.

191536
2014

R&D Expansion

Opened in-house lab to innovate smarter, quieter, and more durable cooling systems for all climates.

HVAC & Plumbing Experience You Can Trust
2017

Smart Cooler Debut

Launched IoT-connected coolers with mobile app controls and real-time air quality monitoring features.

2025

International Distribution

Expanded sales to Europe and Asia through partnerships with green appliance retailers and HVAC distributors.

Experience & Trust

Experience & Trust

Our team has helped hundreds of homeowners across San Diego resolve plumbing and HVAC issues quickly and effectively. With years of hands-on experience, continuous technical training, and a deep understanding of local home systems, we provide accurate diagnostics and long-lasting solutions. San Diego families trust us because we combine industry expertise with genuine care and dependable service.

Our Promise to You

Service done right,the first time,by San Diego’s Home Service Specialist.
We stand by our work, prioritize your peace of mind, and remain committed to raising the standard for home services in San Diego.

HVAC & Plumbing Experience You Can Trust

Restore Your Home’s Comfort Today

Get fast, dependable service from San Diego’s Home Service Specialist.