Call (707) 531-9216 Always here to answer

Serving Sonoma · Sonoma County

Heating & cooling, around the Plaza.

Historic homes, valley heat, and a family team that treats Sonoma like a neighbor.

Call (707) 531-9216 Always here to answer Text Us
  • ✓ Licensed CSL #1103018
  • ★ Trusted by Napa families
  • ✓ Same-day service
  • ✓ Year-round preventative maintenance
A family at home near Sonoma

JVG in Sonoma

HVAC service in Sonoma, done the family way.

One Napa-based family team · 25 years of experience · Lic. #1103018 (C-20 HVAC · C-10 Electrical · B General)

Sonoma's mix is unlike anywhere else we work: adobe-era and early-1900s homes near the Plaza with quirky retrofits, ranch houses from the 60s and 70s, and newer builds toward the east side. Older Sonoma homes often carry decades of patched ductwork and add-on wall heaters — the first honest step is usually an inspection, not a sales pitch.

Sonoma Valley traps summer heat, and afternoon highs run well past what many older A/C systems were sized for. We see plenty of systems short-cycling their way to an early death because they were never matched to the house. When replacement time comes, heat pumps handle Sonoma's mild winters easily and meet California's 2027 rules.

We're over the Mayacamas from our Napa base often — Sonoma calls get grouped so we arrive on time and you're not paying for windshield hours.

What we do in Sonoma

Worth knowing in Sonoma

One honest note: we don't have an office in Sonoma — we're a family team based in Napa Valley that serves Sonoma on scheduled routes, with emergency priority. When we quote an arrival window, we've already accounted for the drive.

Book your $69.99 inspection in Sonoma

A visual and operational inspection of your system — 11 points, written assessment in plain language, and no repairs, cleaning, or component replacements sold at the door.

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Mon–Sat 7am–7pm · Call or text · A real person answers

Featured Special

Three questions
every Napa homeowner should ask.

  1. When was the last time your furnace and A/C had maintenance?
  2. When did your system last have a full inspection?
  3. Does your system need a preventative maintenance inspection?
$ 69 .99

Our maintenance inspection includes

A visual and operational inspection only — no repairs, cleaning, or component replacements are included in this visit.

  • Inspect the blower motor and fan for visible wear or damage
  • Inspect and test the ignition system and pilot assembly for proper operation
  • Verify and test all safety controls and limit switches for correct function
  • Inspect accessible gas piping and valves for signs of leaks or corrosion
  • Inspect the venting system for blockages or damage
  • Check carbon monoxide levels in the living space with appropriate test instruments
  • Examine the heat exchanger for visible cracks, corrosion, or damage
  • Inspect the condenser coil for visible damage, debris buildup, or restricted airflow
  • Inspect and tighten accessible electrical connections as needed for safe operation
  • Check thermostat operation and basic calibration for accurate temperature control
  • Test the furnace cycle for proper ignition, operation, and shutdown
Call (707) 531-9216 Text to Book

Available throughout Napa Valley & Sonoma County · Family-operated · 25 years of experience

Claim the $69.99 Special

Book your maintenance inspection.

Leave your details and we'll call to schedule — usually same day. No obligation.

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FAQ

Common questions,
honest answers.

What areas does JVG service?

Napa Valley and Sonoma County — including Napa, Sonoma, St. Helena, Yountville, Calistoga, Petaluma, Healdsburg, Sebastopol, Vacaville, Fairfield, Glen Ellen, Kenwood, and Windsor.

What is the $69.99 preventative maintenance inspection?

A visual and operational inspection from a JVG technician — no repairs, cleaning, or component replacements are included in this visit. We inspect the blower motor and fan, test the ignition system and pilot, verify safety controls and limit switches, inspect accessible gas piping for leaks or corrosion, inspect the venting system, check carbon monoxide levels with test instruments, examine the heat exchanger for visible cracks or damage, inspect the condenser coil, tighten accessible electrical connections, check thermostat operation, and test the full furnace cycle. You get a written assessment in plain language — no pressure, no upselling. Any repairs are quoted separately for your approval.

What are the new regulations for gas furnaces and water heaters in California?

California is moving away from gas-burning home appliances. Under the state's zero-emission appliance standards, new residential gas furnaces and gas water heaters are being phased out beginning in 2027, with electric heat pump models becoming the standard. Heat pump HVAC systems and heat pump water heaters meet the new rules — we install both and can help you plan the switch before the deadline so you're never caught off guard.

Are you licensed and insured?

Yes. Contractors License No. 1103018 with C-20 HVAC, C-10 Electrical, and B General Contractor classifications. Fully bonded and insured for residential work across California.

How much does a new HVAC system cost?

Most residential installations range from $6,000 to $15,000 depending on home size and system type. We start every install with a free in-home estimate — call (707) 531-9216 for a quote.

Do you offer same-day service?

Yes — same-day service is available for emergencies. Call or text (707) 531-9216 and we'll move you to the front of the line.

Do you handle electrical work?

Yes. Our C-10 Electrical license covers panel upgrades, new circuits, lighting, and general residential electrical repairs — so you don't have to call a separate electrician for HVAC projects.

Ready when you are.

Call or text. A real person answers — every time.

Call (707) 531-9216 Text Us

Mon–Sat · 7am–7pm