Triple-Licensed
CSL #1103018 · C-20 · C-10 · B General
One trusted team for HVAC, electrical, and general contracting across Napa and Sonoma. No need to juggle separate vendors.
Service Areas · Napa & Sonoma
From Carneros to Calistoga.
Same family, same standards — across every town in Napa Valley and Sonoma County. Same-day response on emergencies.
- ✓ Licensed CSL #1103018
- ★ Trusted by Napa families
- ✓ Same-day service
- ✓ Year-round preventative maintenance
"They drive out to Fairfield whenever we call. Reliable, every time."
Service Areas
Serving Napa Valley
& Sonoma County.
From Carneros to Calistoga, Petaluma to Healdsburg — same family, same standards, every town we cover.
Napa
Sonoma
St. Helena
Yountville
Calistoga
Petaluma
Healdsburg
Sebastopol
Vacaville
Fairfield
Glen Ellen
Kenwood
Windsor
Don't see your town? Call us — we serve all of Napa Valley & Sonoma County.
25
Years of Experience
Hands-on HVAC expertise
3
State Licenses
HVAC · Electrical · General
$69.99
Maintenance Inspection
Visual & operational check
All Year
Preventative Care
Comfort that lasts all year long
Why JVG
Three licenses. One family.
No call centers.
When you call JVG, you get the family who built this business — not a dispatcher reading from a script.
Father & Son
25 Years' Experience · Family-Operated
You call, we answer. No call centers. No upselling. Real people who own their work and remember your name.
Same-Day Service
Emergencies First
When your AC dies in a Napa heat wave or your system quits during wildfire smoke season, we move you to the front of the line.
Year-Round Care
Preventative Maintenance
We keep your system protected all year long — preventative maintenance inspections that catch problems before they become emergencies.
Want to talk to the family directly?
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.
Mon–Sat · 7am–7pm