DG Heating and Air Conditioning
San Jose, CA HVAC · #4 of 7 · 30+ yrs
At a glance
- Google rating
- 4.9★ from 175+ reviews
- In business
- 30+ years
- Services
- 8 HVAC services
- Service area
- San Jose, CA + 3 nearby
- Phone
- +1-408-669-3496
DG Heating and Air Conditioning as a HVAC provider
San Jose, CA HVAC · #4 of 7 · 30+ yrs
DG Heating leads with ductless mini-split expertise and Mitsubishi Diamond Contractor status. Manufacturer dealer relationships include Bryant and American Standard. San Jose homeowners face bay-area heat spikes and varied housing stock. DG Heating lists same-day service availability on their site. Google reviewers mention precision installations and prompt scheduling.
DG Heating and Air Conditioning handles residential and light-commercial HVAC in San Jose, focusing on ductless mini-splits. Manufacturer dealer status lists Mitsubishi Diamond Contractor, Bryant, and American Standard. Same-day service is stated on their site. Financing availability is advertised for larger replacements.
At the San Jose, CA HVAC average (80/100). Ranks #4 of 7 listed HVAC providers in San Jose, CA.
| Signal | DG Heating and Air Conditioning | San Jose avg | Delta |
|---|---|---|---|
| Vouched Score | 80/100 | 80/100 | matches city average |
| Google rating | 4.9★ | 4.9★ | matches city average |
| Review volume | 175+ | 300+ | -129 vs avg |
| Years in business | 30+ | 29+ | +1 vs avg |
- High Google rating (4.9★ across 175+ reviews)
- Long-established (30+ years in business)
- Authorized American Standard Diamond Contractor Dealer
- Emergency response: same-day
- Financing available
- Specializes in mini split
- You need same-day or after-hours service
- You want manufacturer-warranty installation work
- You need to finance the work
- You value a long-tenured local operator (30+ years in business)
- You want a BBB-rated firm specifically
| Provider | Vouched | Years | BBB | Yelp | Our picks | |
|---|---|---|---|---|---|---|
DG Heating and Air Conditioning (this company) |
80/100 | 4.9★ (175+) | 30+ | — | — | American Standard Dealer in San Jose |
| 81/100 | 4.9★ (310+) | 25+ | — | — | — | |
| 80/100 | 4.8★ (330+) | 64+ | — | — | Best for Furnace Repair Best NATE-Certified Team |
|
| 83/100 | 4.7★ (355+) | 43+ | — | — | Best for Upfront Pricing |
DG Heating and Air Conditioning as a AC Replacement provider
San Jose, CA AC Replacement · #2 of 5 · 30+ yrs
DG Heating and Air Conditioning lists Mitsubishi, Bryant, and American Standard diamond dealer tiers. The company states a same-day emergency response window. DG Heating and Air advertises financing options for larger installations. DG Heating and Air Conditioning notes a no-pressure, clear-options assessment approach. The business reports 30+ years serving Santa Clara County homes and businesses.
Central AC replacement and light-commercial system installs across San Jose and Santa Clara County. Manufacturer dealer status: Mitsubishi Diamond Contractor, Bryant Diamond Contractor, and American Standard dealer listed. Honest assessment: the site states a no-pressure diagnosis with clear options and same-day response advertised.
San Jose, CA AC Replacement average is 80/100. Ranks #2 of 5 listed AC Replacement providers in San Jose, CA.
| Signal | DG Heating and Air Conditioning | San Jose avg | Delta |
|---|---|---|---|
| Vouched Score | 79/100 | 80/100 | -1 vs avg |
| Google rating | 4.9★ | 4.9★ | matches city average |
| Review volume | 175+ | 305+ | -133 vs avg |
| Years in business | 30+ | 32+ | -2 vs avg |
- High Google rating (4.9★ across 175+ reviews)
- Long-established (30+ years in business)
- Authorized American Standard Diamond Contractor Dealer
- Emergency response: same-day
- Financing available
- You need same-day AC replacement
- You need same-day or after-hours service
- You want manufacturer-warranty installation work
- You need to finance the work
- You have a commercial property
- You want a BBB-rated firm specifically
| Provider | Vouched | Years | BBB | Yelp | Our picks | |
|---|---|---|---|---|---|---|
DG Heating and Air Conditioning (this company) |
79/100 | 4.9★ (175+) | 30+ | — | — | — |
| 83/100 | 4.9★ (310+) | 25+ | — | — | Best for Proper Sizing Best for Honest Replace-vs-Repair Best for Full-System Changeout |
|
| 79/100 | 4.8★ (335+) | 64+ | — | — | — | |
| 79/100 | 5.0★ (245+) | 26+ | — | — | — |
DG Heating and Air Conditioning as a Furnace Repair provider
San Jose, CA Furnace Repair · #6 of 7 · 30+ yrs
Furnace repair and diagnostics are a highlighted service listed with concrete repair workflows. DG Heating and Air Conditioning advertises authorized dealer status with Mitsubishi, Bryant, and American Standard. The company notes same-day emergency response for no-heat situations in San Jose. The website lists a $99 seasonal maintenance membership and financing options. Google reviewers often cite clear communication and punctual appointments.
Furnace repair and diagnostics serving San Jose and the Bay Area, focused on heating systems. Manufacturer partnerships include Mitsubishi Diamond Contractor, Bryant, and American Standard dealer status. Emergency response is advertised as same-day, and financing options are listed. Years in business: 30+ years.
San Jose, CA Furnace Repair average is 80/100. Ranks #6 of 7 listed Furnace Repair providers in San Jose, CA.
| Signal | DG Heating and Air Conditioning | San Jose avg | Delta |
|---|---|---|---|
| Vouched Score | 78/100 | 80/100 | -2 vs avg |
| Google rating | 4.9★ | 4.9★ | matches city average |
| Review volume | 175+ | 325+ | -153 vs avg |
| Years in business | 30+ | 31+ | -1 vs avg |
- High Google rating (4.9★ across 175+ reviews)
- Long-established (30+ years in business)
- Authorized American Standard Diamond Contractor Dealer
- Emergency response: same-day
- Financing available
- Maintenance plans available
- You need furnace tune-up & maintenance
- You need no-heat / emergency furnace repair
- You need same-day or after-hours service
- You want manufacturer-warranty installation work
- You need to finance the work
- You want a BBB-rated firm specifically
| Provider | Vouched | Years | BBB | Yelp | Our picks | |
|---|---|---|---|---|---|---|
DG Heating and Air Conditioning (this company) |
78/100 | 4.9★ (175+) | 30+ | — | — | — |
| 83/100 | 4.9★ (400+) | 15+ | — | — | Best for Commercial Furnace Repair | |
| 82/100 | 4.8★ (335+) | 64+ | — | — | Best NATE-Certified Shop | |
| 82/100 | 4.9★ (310+) | 25+ | — | — | — |
DG Heating and Air Conditioning as a Furnace Replacement provider
San Jose, CA Furnace Replacement · #4 of 7 · 30+ yrs
DG Heating and Air Conditioning lists furnace replacement and installation with named-brand work.
Furnace replacement and HVAC installations for San Jose and Santa Clara County homeowners.
San Jose, CA Furnace Replacement average is 79/100. Ranks #4 of 7 listed Furnace Replacement providers in San Jose, CA.
| Signal | DG Heating and Air Conditioning | San Jose avg | Delta |
|---|---|---|---|
| Vouched Score | 78/100 | 79/100 | -1 vs avg |
| Google rating | 4.9★ | 4.9★ | matches city average |
| Review volume | 175+ | 325+ | -153 vs avg |
| Years in business | 30+ | 31+ | -1 vs avg |
- High Google rating (4.9★ across 175+ reviews)
- Long-established (30+ years in business)
- Authorized American Standard Diamond Contractor Dealer
- Emergency response: same-day
- Financing available
- You need same-day furnace replacement
- You need same-day or after-hours service
- You want manufacturer-warranty installation work
- You need to finance the work
- You value a long-tenured local operator (30+ years in business)
- You want a BBB-rated firm specifically
| Provider | Vouched | Years | BBB | Yelp | Our picks | |
|---|---|---|---|---|---|---|
DG Heating and Air Conditioning (this company) |
78/100 | 4.9★ (175+) | 30+ | — | — | — |
| 83/100 | 4.9★ (400+) | 15+ | — | — | Best for High-Efficiency (95%+ AFUE) Upgrades | |
| 82/100 | 4.9★ (310+) | 25+ | — | — | Best for Proper Sizing | |
| 80/100 | 4.9★ (465+) | 13+ | — | — | — |
DG Heating and Air Conditioning as a Indoor Air Quality provider
San Jose, CA Indoor Air Quality · #5 of 5 · 30+ yrs
ERV/HRV ventilation installs are highlighted as a core IAQ offering on their site. Mitsubishi Diamond Contractor and Bryant dealer status appears in credentials. San Jose homeowners may value ventilation during smoke seasons and tighter modern homes. DG Heating and Air lists same-day service and notes emphasis on clear communication.
Indoor air quality installs for San Jose homes, with ERV/HRV ventilation emphasized. ERV/HRV ventilation installs are listed on their services page. Mitsubishi Diamond Contractor and Bryant dealer status appear in credentials. Financing available (stated) and 30+ years experience are noted.
San Jose, CA Indoor Air Quality average is 79/100. Ranks #5 of 5 listed Indoor Air Quality providers in San Jose, CA.
| Signal | DG Heating and Air Conditioning | San Jose avg | Delta |
|---|---|---|---|
| Vouched Score | 74/100 | 79/100 | -5 vs avg |
| Google rating | 4.9★ | 4.9★ | matches city average |
| Review volume | 175+ | 320+ | -146 vs avg |
| Years in business | 30+ | 22+ | +8 vs avg |
- High Google rating (4.9★ across 175+ reviews)
- Long-established (30+ years in business)
- Authorized Mitsubishi Diamond Contractor Dealer, Bryant Diamond Contractor Dealer, American Standard Diamond Contractor Dealer
- Emergency response: same-day
- Financing available
- You need same-day or after-hours service
- You want manufacturer-warranty installation work
- You need to finance the work
- You value a long-tenured local operator (30+ years in business)
- You want a BBB-rated firm specifically
| Provider | Vouched | Years | BBB | Yelp | Our picks | |
|---|---|---|---|---|---|---|
DG Heating and Air Conditioning (this company) |
74/100 | 4.9★ (175+) | 30+ | — | — | — |
| 81/100 | 4.9★ (400+) | 15+ | — | — | — | |
| 81/100 | 4.9★ (465+) | 13+ | — | — | — | |
| 80/100 | 5.0★ (245+) | 26+ | — | — | — |
Services
- Mini-Split Systems — Mini-split installation and service — typically ductless, used for additions or zoned comfort.
- Heat Pump Service
- AC Repair — Diagnostics and repair of central air conditioning systems — refrigerant leaks, capacitor and contactor failures, condenser fan motors, and thermostat issues.
- AC Replacement — Removal and replacement of an aging or failed central A/C — typically condenser, evaporator coil, and refrigerant lines.
- HVAC Installation — Full HVAC system installation including indoor and outdoor equipment, ductwork tie-in, and refrigerant work.
- Duct Work — Ductwork inspection, sealing, and replacement — addresses leakage, undersized runs, and uneven room temperatures.
- Indoor Air Quality — Indoor air-quality work: high-MERV filtration, UV systems, humidifiers/dehumidifiers, and duct sanitization.
- Emergency HVAC Service — After-hours emergency response for no-cool and no-heat calls.
Service area
San Jose, CA home · Repair San Jose, CA 2 mi · Replacement San Jose, CA 2 mi · Services San Jose, CA 3 mi
Guarantees & credentials
- Licensed and insured
Sourced from the provider's own website. We surface these as published; we do not independently verify each license or warranty.
Contact & hours
Frequently asked questions
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Does DG Heating and Air Conditioning do Heat Pump Service in San Jose, CA?
Does DG Heating and Air Conditioning do AC Repair in San Jose, CA?
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Profile last updated July 18, 2026.