[ 01 / 07 ]
San Francisco homes often need HVAC systems that work within tight mechanical spaces, older framing, flat roofs, historic construction, and dense urban layouts. 3rdGen Heating & Cooling designs and installs residential HVAC systems for remodels, additions, replacements, heat pump upgrades, and high-performance comfort projects throughout San Francisco.
- Common homes
- Victorians, Edwardians, flats, condos, townhomes, historic homes, and narrow-lot single-family homes.
- Common projects
- HVAC replacement, heat pump installation, ductwork, zoning, ventilation, remodel HVAC, and Manual J planning.
Plan a San Francisco HVAC Project →
[ 02 / 07 ]
Marin County homes often need HVAC planned around hillside lots, custom residences, remodels, coastal exposure, and microclimate differences from one neighborhood to the next. 3rdGen Heating & Cooling designs residential heat pump, ducted, ductless, filtration, and ventilation systems for high-performance comfort across Mill Valley, Sausalito, Tiburon, San Rafael, and surrounding Marin communities.
- Mill Valley
- Sausalito
- Tiburon
- San Rafael
- Larkspur
- Novato
- Common homes
- Hillside homes, custom residences, mid-century homes, coastal properties, remodeled homes, and properties with indoor-outdoor living.
- Common projects
- Heat pump installation, duct design, ductless zones, filtration upgrades, remodel HVAC, ventilation, and electrification planning.
Plan a Marin County HVAC Project →
[ 03 / 07 ]
Inner East Bay homes in Oakland, Berkeley, Alameda, and surrounding communities often need careful retrofit planning because of older construction, compact lots, limited attic access, and ductwork that was never designed for modern comfort. 3rdGen Heating & Cooling designs heat pump, ducted, ductless, and ventilation systems sized for each home’s structure, exposure, and remodel goals.
- Common homes
- Craftsman bungalows, Victorians, Edwardians, flats, condos, hillside homes, and remodeled older single-family homes.
- Common projects
- Heat pump retrofits, ductwork upgrades, ducted mini-splits, ductless systems, zoning, ventilation, and comfort balancing.
Plan an Inner East Bay HVAC Project →
[ 04 / 07 ]
Lamorinda homes in Lafayette, Moraga, and Orinda often need HVAC systems planned around larger floor plans, hillside lots, additions, custom construction, and comfort differences between levels. 3rdGen Heating & Cooling designs heat pump, zoning, ductwork, filtration, and ventilation solutions for single-family homes where performance depends on more than replacing existing equipment.
- Common homes
- Larger single-family homes, ranch and mid-century homes, hillside properties, custom homes, and homes with additions or indoor-outdoor living.
- Common projects
- Heat pump systems, zoning, duct design, ductwork upgrades, filtration, ventilation, and comfort upgrades for remodels and additions.
Plan a Lamorinda HVAC Project →
[ 05 / 07 ]
Walnut Creek, Danville, Alamo, Concord, Pleasant Hill, and surrounding Central Contra Costa homes often face warmer summer conditions, larger floor plans, attic ductwork, and comfort differences between floors. 3rdGen Heating & Cooling designs residential HVAC and heat pump systems around cooling performance, airflow, zoning, ductwork, and indoor air quality for suburban homes ready for a full-system upgrade.
- Common homes
- Suburban single-family homes, two-story homes, ranch homes, larger remodels, townhomes, and homes with attic-mounted equipment.
- Common projects
- HVAC replacement, heat pump upgrades, zoning, ductwork redesign, filtration, ventilation, and whole-home comfort planning.
Plan a Walnut Creek Area HVAC Project →
[ 06 / 07 ]
Tri-Valley and San Ramon Valley homes in San Ramon, Dublin, Pleasanton, Livermore, Danville, and Alamo often need HVAC systems designed for higher cooling loads, larger layouts, attic equipment, and efficient heat pump performance through hot summers and cooler winter mornings. 3rdGen Heating & Cooling designs replacements, additions, zoning, and electrification paths sized for each home’s exposure and comfort goals.
- Common homes
- Newer suburban homes, larger single-family homes, custom residences, remodels, and homes with attic or garage mechanical layouts.
- Common projects
- Heat pump replacements, zoning, ductwork redesign, AC-to-heat-pump conversions, filtration upgrades, and comfort improvements for additions.
Plan a Tri-Valley HVAC Project →
[ 07 / 07 ]
South East Bay homes in Fremont, Hayward, Union City, Newark, Milpitas, and Castro Valley include a wide mix of older houses, remodels, additions, and suburban layouts that each need load-specific HVAC planning. 3rdGen Heating & Cooling designs heat pump, ducted, ductless, and ductwork solutions around the home’s construction, mechanical space, airflow issues, and long-term comfort goals.
- Castro Valley
- Fremont
- Hayward
- Newark
- Union City
- Common homes
- Single-family homes, townhomes, older ranch homes, remodels, additions, and homes with attic, garage, or crawlspace equipment.
- Common projects
- Heat pump installation, HVAC replacement, ductwork upgrades, ductless systems, zoning, ventilation, and residential comfort upgrades.
Plan a South East Bay HVAC Project → 
