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Stay Comfortable San Diego
HVAC installation & replacement in San Diego
New and replacement heating and cooling systems for homes and businesses across greater San Diego: furnaces, heat pumps, air conditioners, air handlers and commercial rooftop units. Every install starts with a free estimate.
- Free estimates on new systems
- Residential & commercial
- 5-star Google reviews
Free estimates on every new or replacement system. We look at your home or building, talk through options, and give you a clear written quote before any work begins. Request yours →
What we install
What's included in an installation
Every installation is planned around your space, your comfort goals and your budget.
Gas furnaces
New furnace installs and replacements, including venting and connections to your existing ductwork.
Heat pumps
Efficient electric heating and cooling in one system, a good fit for much of San Diego's mild climate.
Air conditioners
Central AC installs and replacements, matched to your furnace or air handler.
Air handlers
Indoor air handlers installed or replaced to pair with heat pumps and split systems.
Commercial rooftop units
Rooftop package unit replacements for offices, retail and light-commercial buildings.
Sizing, retrofits & zoning
Proper equipment sizing, retrofits of existing systems, relocations and zoning options.
When to replace
Signs it may be time to replace
- Repairs keep adding upFrequent breakdowns on an older system often cost more over time than replacing it.
- Rooms that never feel rightUneven temperatures can point to undersized, oversized or worn-out equipment.
- Rising energy billsOlder systems lose efficiency, and newer equipment can use noticeably less energy.
- Remodel, addition or new buildNew construction and additions are the right time to plan a properly sized system.
- The system is noisy or struggles to keep upLoud operation, short-cycling, or running constantly are signs of a system near the end.
Homes & businesses
Residential and commercial
For your home
Whole-home replacements, new construction, additions and remodels. We help you choose equipment that fits your home and budget, then install it cleanly and walk you through how to use it.
For your business
Rooftop package units, split systems and air handlers for offices, retail, restaurants and light-commercial spaces. We plan installs to keep downtime low for your business.
FAQ
Installation FAQ
How long does a typical installation take?
It depends on the system and the property. A straightforward like-for-like replacement is usually much quicker than new construction or a system that needs ductwork changes. We'll give you a timeline with your estimate.
Should I repair or replace my system?
It depends on the age and condition of your equipment, the cost of the repair, and how well it keeps you comfortable. We'll give you an honest recommendation, and we won't push a replacement you don't need.
What size system do I need?
Proper sizing depends on your home or building's square footage, layout, insulation, windows and sun exposure. Bigger isn't always better: an oversized system can short-cycle and feel less comfortable.
Is a heat pump a good choice in San Diego?
For many San Diego homes, yes. Heat pumps provide both heating and cooling efficiently in mild climates. We can compare a heat pump against a furnace-and-AC setup for your situation.
Do you install commercial rooftop units?
Yes. We replace commercial rooftop package units as well as split systems and air handlers for businesses across the greater San Diego area.
Are estimates really free?
Yes. Estimates for new and replacement systems are free.
Planning a new system?
Get a free estimate on installation or replacement, for your home or your business.
Or email us at mike@75hvac.com