Harry Clark Plumbing and Heating Inc
Oakland, CA HVAC · #4 of 4 · 74+ yrs
At a glance
- Google rating
- 4.7★ from 80+ reviews
- In business
- 74+ years
- Services
- 2 HVAC services
- Service area
- Oakland, CA + 3 nearby
- Phone
- +1-510-444-1776
Harry Clark Plumbing and Heating Inc as a HVAC provider
Oakland, CA HVAC · #4 of 4 · 74+ yrs
Harry Clark Plumbing and Heating Inc traces operations back to a 1952 founding family business. The company notes two sibling-led firms after a 2020 split. Company pages reference a union-trained journeyman on staff since 1985. Oakland's coastal fog and cool winters often prompt heater tune-ups and gas-water-heater calls.
Heating and air conditioning service for Oakland and Berkeley homeowners. Years in business: 70+ years. Family-owned operation with two brother-run companies and union-trained technicians.
Oakland, CA HVAC average is 79/100. Ranks #4 of 4 listed HVAC providers in Oakland, CA.
| Signal | Harry Clark Plumbing and Heat… | Oakland avg | Delta |
|---|---|---|---|
| Vouched Score | 69/100 | 78/100 | -10 vs avg |
| Google rating | 4.7★ | 4.9★ | -0.2 vs avg |
| Review volume | 80+ | 150+ | -70 vs avg |
| Years in business | 74+ | 32+ | +42 vs avg |
- High Google rating (4.7★ across 80+ reviews)
- Long-established (74+ years in business)
- You prefer a family-owned operation
- You value a long-tenured local operator (74+ years in business)
- You want a BBB-rated firm specifically
| Provider | Vouched | Years | BBB | Yelp | Our picks | |
|---|---|---|---|---|---|---|
Harry Clark Plumbing and Heating Inc (this company) |
69/100 | 4.7★ (80+) | 74+ | — | — | — |
| 83/100 | 4.9★ (115+) | 22+ | — | — | Best for AC Repair Best for Furnace Repair Best for Emergency / 24-Hour Service |
|
| 82/100 | 4.9★ (255+) | 16+ | — | — | Best for New System Installation Best for Heat Pumps Best for Indoor Air Quality |
|
| 80/100 | 4.9★ (145+) | 15+ | — | — | Best for Ductwork & Sealing |
Harry Clark Plumbing and Heating Inc as a Furnace Repair provider
Oakland, CA Furnace Repair · #5 of 5 · 74+ yrs
Harry Clark Plumbing and Heating lists residential heating service and HVAC repairs for Oakland homes. Family ownership traces back through multiple generations since 1952. Oakland's mild, coastal winters often reveal combustion and draft issues in older homes. Website content highlights coordinated plumbing and heating capabilities across two nearby Oakland locations.
Heating and air conditioning repairs for Oakland and Berkeley residences. Company reports 70+ years operating in Oakland since 1952. Licensed plumbing contractor listed on the company's site. Offers gas-line repair work alongside heating system service.
Oakland, CA Furnace Repair average is 76/100. Ranks #5 of 5 listed Furnace Repair providers in Oakland, CA.
| Signal | Harry Clark Plumbing and Heat… | Oakland avg | Delta |
|---|---|---|---|
| Vouched Score | 71/100 | 76/100 | -5 vs avg |
| Google rating | 4.7★ | 4.8★ | -0.1 vs avg |
| Review volume | 80+ | 165+ | -89 vs avg |
| Years in business | 74+ | 27+ | +47 vs avg |
- High Google rating (4.7★ across 80+ reviews)
- Long-established (74+ years in business)
- You prefer a family-owned operation
- You value a long-tenured local operator (74+ years in business)
- You want a BBB-rated firm specifically
| Provider | Vouched | Years | BBB | Yelp | Our picks | |
|---|---|---|---|---|---|---|
Harry Clark Plumbing and Heating Inc (this company) |
71/100 | 4.7★ (80+) | 74+ | — | — | — |
| 81/100 | 4.9★ (255+) | 16+ | — | — | — | |
| 78/100 | 4.7★ (245+) | 10+ | — | — | Best for 24/7 No-Heat Emergency Repair | |
| 77/100 | 4.9★ (145+) | 15+ | — | — | Best for Combustion-Safety Diagnosis Best for Heat-Exchanger Replacement Best for Igniter & Flame-Sensor Repair |
Harry Clark Plumbing and Heating Inc as a AC Replacement provider
Oakland, CA AC Replacement · #3 of 3 · 74+ yrs
Harry Clark Plumbing and Heating Inc traces its roots back to a family shop founded in 1952. The company reports a split into separate plumbing and HVAC firms in 2020. The business lists long tenure serving Oakland and Berkeley neighborhoods. Oakland homeowners face humid summers and older housing stock needing proper vintage-system care.
Heating and air conditioning service for Oakland and Berkeley residential properties. Years in business: 70+ years of local trade experience. Company structure: two brothers running separate plumbing and HVAC firms since 2020. Service areas noted include Trust and Oakland specifically.
Oakland, CA AC Replacement average is 76/100. Ranks #3 of 3 listed AC Replacement providers in Oakland, CA.
| Signal | Harry Clark Plumbing and Heat… | Oakland avg | Delta |
|---|---|---|---|
| Vouched Score | 69/100 | 76/100 | -7 vs avg |
| Google rating | 4.7★ | 4.8★ | -0.1 vs avg |
| Review volume | 80+ | 150+ | -71 vs avg |
| Years in business | 74+ | 37+ | +37 vs avg |
- High Google rating (4.7★ across 80+ reviews)
- Long-established (74+ years in business)
- You prefer a family-owned operation
- You value a long-tenured local operator (74+ years in business)
- You want a BBB-rated firm specifically
| Provider | Vouched | Years | BBB | Yelp | Our picks | |
|---|---|---|---|---|---|---|
Harry Clark Plumbing and Heating Inc (this company) |
69/100 | 4.7★ (80+) | 74+ | — | — | — |
| 83/100 | 4.9★ (255+) | 16+ | — | — | — | |
| 75/100 | 4.9★ (115+) | 22+ | — | — | Best for Honest Replace-vs-Repair Best for High-Efficiency Upgrades |
Harry Clark Plumbing and Heating Inc as a Furnace Replacement provider
Oakland, CA Furnace Replacement · #5 of 5 · 74+ yrs
Harry Clark notes separate HVAC and plumbing operations since a 2020 split. The company traces roots back to a 1952 founding. The business operates from two Broadway locations in Oakland. Local familiarity fits Oakland's older homes and vintage gas systems. Review volume indicates steady customer demand in the East Bay.
Furnace replacement and heating service for Oakland and Berkeley homeowners. Seventy-plus years of family-run service originating from a 1952 founding. Two Brothers split HVAC and plumbing into separate businesses in 2020. Operates from two Broadway locations, including 3026 Broadway in Oakland.
Oakland, CA Furnace Replacement average is 76/100. Ranks #5 of 5 listed Furnace Replacement providers in Oakland, CA.
| Signal | Harry Clark Plumbing and Heat… | Oakland avg | Delta |
|---|---|---|---|
| Vouched Score | 69/100 | 76/100 | -7 vs avg |
| Google rating | 4.7★ | 4.8★ | -0.1 vs avg |
| Review volume | 80+ | 165+ | -89 vs avg |
| Years in business | 74+ | 27+ | +47 vs avg |
- High Google rating (4.7★ across 80+ reviews)
- Long-established (74+ years in business)
- You prefer a family-owned operation
- You value a long-tenured local operator (74+ years in business)
- You want a BBB-rated firm specifically
| Provider | Vouched | Years | BBB | Yelp | Our picks | |
|---|---|---|---|---|---|---|
Harry Clark Plumbing and Heating Inc (this company) |
69/100 | 4.7★ (80+) | 74+ | — | — | — |
| 82/100 | 4.9★ (255+) | 16+ | — | — | — | |
| 79/100 | 4.9★ (145+) | 15+ | — | — | Best for Combustion-Safe Installation | |
| 77/100 | 4.7★ (245+) | 10+ | — | — | Best for Same-Day Replacement |
Harry Clark Plumbing and Heating Inc as a Heat Pump Installation provider
Oakland, CA Heat Pump Installation · #5 of 5 · 74+ yrs
Heating and air conditioning service focused on Oakland and Berkeley homeowners. Company history notes operation since 1952, about 70+ years. Website lists licensed California plumbing and HVAC contractor status. Location on Broadway ties operations to older Oakland housing stock and retrofit opportunities. Family ownership and multi-generation staff are emphasized throughout company history.
Heating and air conditioning service serving Oakland and Berkeley neighborhoods. Company history notes operation since 1952, about 70+ years. Family ownership appears across multiple generations on the company site. Website lists a California plumbing contractor license for the firm.
Oakland, CA Heat Pump Installation average is 77/100. Ranks #5 of 5 listed Heat Pump Installation providers in Oakland, CA.
| Signal | Harry Clark Plumbing and Heat… | Oakland avg | Delta |
|---|---|---|---|
| Vouched Score | 69/100 | 77/100 | -8 vs avg |
| Google rating | 4.7★ | 4.8★ | -0.1 vs avg |
| Review volume | 80+ | 165+ | -89 vs avg |
| Years in business | 74+ | 27+ | +47 vs avg |
- High Google rating (4.7★ across 80+ reviews)
- Long-established (74+ years in business)
- You prefer a family-owned operation
- You value a long-tenured local operator (74+ years in business)
- You want a BBB-rated firm specifically
| Provider | Vouched | Years | BBB | Yelp | Our picks | |
|---|---|---|---|---|---|---|
Harry Clark Plumbing and Heating Inc (this company) |
69/100 | 4.7★ (80+) | 74+ | — | — | — |
| 88/100 | 4.9★ (255+) | 16+ | — | — | — | |
| 78/100 | 4.9★ (145+) | 15+ | — | — | — | |
| 76/100 | 4.7★ (245+) | 10+ | — | — | — |
Services
- HVAC Installation — Full HVAC system installation including indoor and outdoor equipment, ductwork tie-in, and refrigerant work.
- AC Replacement — Removal and replacement of an aging or failed central A/C — typically condenser, evaporator coil, and refrigerant lines.
Service area
Oakland, CA home · Replacement Oakland, CA 2 mi · Pump Install Oakland, CA 2 mi · Repair Oakland, CA 2 mi
Guarantees & credentials
- Licensed
Sourced from the provider's own website. We surface these as published; we do not independently verify each license or warranty.
Contact & hours
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Profile last updated July 18, 2026.