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50+ Years
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Your Trusted HVAC & Home Services Experts in Sonoma
Since 1932, Ongaro & Sons has been a trusted provider of comprehensive home services, specializing in heating, cooling, plumbing, electrical, and solar solutions. Our family-owned business prioritizes hiring skilled tradespeople who stay current with the latest technologies and practices to deliver reliable, high-quality service. We guarantee customer satisfaction through proven products, transparent pricing, and a commitment to resolving issues efficiently.

With decades of experience serving residential and commercial clients in the North Bay area, our team of certified professionals ensures every project meets the highest standards of workmanship. We pride ourselves on maintaining a reputation for integrity, punctuality, and exceptional customer care, as evidenced by our long-standing relationships with clients across three generations.
Services
HVAC Repair Plumbing Services Electrical Upgrades Solar Installation Drain Cleaning Boiler Maintenance Emergency Repairs System Diagnostics Attic Ventilation Rebate Assistance
Details
  • Year established: 1932
Highlights and features
  • Family-owned since 1932 with generational expertise in home systems
  • Certified technicians trained on latest HVAC, plumbing, and solar technologies
  • Guaranteed workmanship with manufacturer-backed product warranties
  • 24/7 emergency response for urgent heating/cooling failures
  • Transparent pricing with exclusive financing and rebate programs
What people say
Consistently superior Lightning-fast turnaround Creative solutions Knowledgeable technician Top-notch service
Services
HVAC Systems
We design, install, and repair residential and commercial HVAC systems with energy-efficient solutions. Our certified technicians diagnose issues, perform maintenance, and upgrade outdated systems to improve comfort and reduce energy costs. All work includes manufacturer warranties and performance guarantees.
Plumbing Services
Our licensed plumbers handle emergency leak repairs, pipe replacements, and fixture installations. We use durable materials and advanced leak detection technology to minimize property damage while ensuring code-compliant, long-lasting solutions for residential and business properties.
Electrical Upgrades
We provide full electrical system assessments, panel upgrades, and safety inspections. Our electricians install energy-efficient lighting, EV charging stations, and whole-home surge protectors while adhering to strict safety protocols and local building codes.
Solar Installation
Our NABCEP-certified team designs and installs solar panel systems with battery storage options. We handle permitting, grid connection, and rebate applications to simplify the transition to clean energy while maximizing tax incentives and utility savings.
Drain Cleaning
Using high-pressure water jetting and camera inspections, we remove blockages and buildup from residential and commercial drainage systems. Our preventive maintenance services help avoid emergency backups while extending pipe system longevity through proper care education.
Questions
What areas do you service?
We serve Sonoma, Marin, and Napa counties with emergency services available in surrounding Northern California regions.
Do you offer financing options?
Yes, we provide 72-month special financing on HVAC and plumbing projects with approved credit.
Are your technicians certified?
All our technicians hold industry certifications including EPA 608, OSHA safety, and manufacturer-specific training programs.
What emergency services are available?
We offer 24/7 emergency response for HVAC failures, plumbing leaks, and electrical hazards with same-day service guarantees.
Do you honor manufacturer warranties?
Yes, we install factory-authorized parts and honor all manufacturer warranties while providing our own workmanship guarantee.
How can I schedule service?
Book online through our website or call our Sonoma office at (707) 579-3511 for immediate assistance.