Sonora's Trusted Plumbing, HVAC & Radiant Heating Experts Since 1984
From emergency plumbing repairs to high-efficiency heating and cooling, J. Hart delivers dependable service, fair pricing, and work done right the first time.
Choose the Service You Need
Fast routing to the right team—residential and light commercial.
Plumbing
Repairs, replacements, and installations for homes and light commercial properties — from leaks and clogs to fixtures, piping, water heaters, and remodels.
Learn More →HVAC
Heating and cooling repair, maintenance, replacement, and high-efficiency system installation for year-round comfort in the Motherlode climate.
Learn More →Radiant Heating
Radiant floor heating design, installation, troubleshooting, and repair for comfortable, efficient heat throughout your home or business.
Learn More →Water Treatment
Water softeners, filtration, UV systems, and reverse osmosis solutions designed for local water conditions in Sonora and surrounding areas.
Learn More →The J. Hart Difference
- ✓Straight answers and clear options — no hidden fees
- ✓Experienced technicians who know what they're doing
- ✓Work that holds up, not quick patches
- ✓Clean, respectful service inside your home
- ✓Accredited by the Better Business Bureau, A+ Rating
Not sure who to call — plumbing or HVAC?
Call us and we'll route you to the right technician and get you scheduled.
Trusted by Your Neighbors
I can not say enough about this company. From initial call through repair and completion, J Hart's entire staff are prompt, caring, and professional.…
J Hart Plumbing has always been my go to with my plumbing issues. They are prompt and know what they are doing. Their communication is awesome. Thanks…
I'm updating this review. From Lisa, down to JT, and ALL the people at this company are an exemplary example of how companies should be run! Needed th…
Four Generations. One Standard.
Since 1984, J. Hart Plumbing has been the Motherlode's trusted name in plumbing—and over the years, we've expanded into radiant heating, HVAC, and water treatment.
The services expanded, but the approach never changed: honest pricing, quality work, and a team that shows up and gets it done right.
No call centers. No revolving door of subcontractors. Just a local family that stands behind every job.
Quality Work You Can See
Recent installs, repairs, and commercial projects across Tuolumne County. Every job gets our full attention—from small repairs to major installations.
Serving Sonora, Tuolumne County & Calaveras County
We're based in Sonora and serve homes and businesses across Tuolumne and Calaveras County.
We know the area's homes, building types, water conditions, and climate challenges — and what works at our elevation.
Not sure if we serve your area? Give us a call: (209) 533-1978
Ready to Schedule?
We'll Call You Back Fast.
Fill out the form and we'll reach out to confirm your appointment. No holding, no runaround — just a real person who knows your trade area.
- Same-day appointments available Mon–Fri
- Upfront pricing — no surprises after the fact
- CA Lic #459194 · NV Lic #77957
- Hours: 7:30 AM – 4:00 PM, Mon–Fri