Mon–Fri 8:00AM – 5:30PM

Air Conditioning Repair & Installation | Marin & Sonoma

Same-day air conditioning repair, installation, ductless mini-splits, and cooling help for Marin and Sonoma homes.

Licensed & InsuredProfessionals
Quality WorkGuaranteed
Local ExpertsSince 1986
Fast & ReliableService

From the fog-cooled hills of Mill Valley and Tiburon to the triple-digit summer afternoons in Santa Rosa, Petaluma, and Healdsburg, comfort in our two counties means very different things house to house. John Owens Services has cooled North Bay homes since 1986 — sizing systems for our microclimates, retrofitting ductless cooling into older Victorians and mid-century homes that were never built with AC, and keeping aging inland condensers running through heat waves and smoke season. Whether your system quit on the hottest day of the year or you're finally adding central air, we diagnose honestly and fix it right the first time.

Why Homeowners Choose John Owens

  • Local since 1986 — we know which Marin and Sonoma neighborhoods run hot inland versus coastal, and we size every system for your specific microclimate, not a generic rule of thumb
  • Licensed California contractor #501853, family-run, with a 4.9-star Google rating and happy customers from Novato, San Rafael, Rohnert Park, Windsor, and across the North Bay
  • Repair first, replace second — we tell you honestly when a fix makes sense and when a new system is the smarter long-term call
  • Specialists in ductless mini-split retrofits for older homes with no existing ductwork, plus heat-pump conversions for homeowners electrifying off gas
  • Same-day service and fully stocked trucks, so most AC repairs are completed in a single visit during peak summer demand
  • Factory-trained technicians who handle modern high-SEER systems, R-22 phase-out refrigerant issues, and whole-home air filtration for wildfire-smoke season

Signs You Need Air Conditioning in

  • Warm or weak airflow on hot inland afternoons — common when an aging condenser is low on refrigerant or the compressor is failing
  • Spiking summer energy bills, which often point to an undersized or 15-to-20-year-old system straining against Sonoma County heat
  • Hissing, grinding, or rattling from the outdoor unit, or water pooling around the indoor coil
  • An older home with window units you'd like to replace — a ductless mini-split cools room by room with no ductwork required
  • Wanting cleaner indoor air during fire season, when a properly filtered AC or heat-pump system helps keep smoke out

Frequently Asked Questions

Do you offer same-day air conditioning repair in Marin and Sonoma County?

Yes — we offer same-day AC repair across both counties and our trucks are stocked to finish most jobs in one visit. As a licensed California contractor (#501853), we diagnose the real problem before recommending any work.

How much does AC installation cost for a home with no existing ductwork?

Many older Marin and Sonoma homes do best with a ductless mini-split, which avoids the cost of adding ducts and cools specific rooms efficiently. We give a clear, upfront quote after assessing your home's layout, size, and microclimate.

Should I repair or replace my old air conditioner?

We follow a repair-first approach: if a fair fix gets you reliable seasons, we'll do that. For systems over 15 years old, using phased-out R-22 refrigerant, or failing repeatedly, replacing with a high-efficiency unit usually saves more over time.

Can your HVAC system help with wildfire smoke during summer?

Yes — a properly sealed, well-filtered central AC or heat-pump system helps keep smoke and particulates out of your home during fire season. We can recommend upgraded filtration suited to North Bay air-quality conditions.

Proudly Serving Marin & Sonoma

From the Marin coast to Sonoma wine country, we bring honest plumbing, heating & cooling to homeowners across both counties — based locally since 1986.

Ready to Get Started?

Schedule service with our trusted local team today.

Serving Marin & Sonoma Counties

Good plumbing, heating, and air conditioning systems are vital in every North California home. John Owens Services, Inc. is proud to be the expert plumbing company you can count on