Residential HVAC · Fair Oaks & Sacramento
Residential HVAC Design-Build in Sacramento
Engineered for the way your family lives.
Residential HVAC design-build for new construction, remodels, and full-system replacements, right-sized, quietly installed, and engineered for how your home is actually lived in.
Start hereHow to Choose a Heating and Air Conditioning Contractor: 8 Checks Before You Sign · Variable Speed Air Conditioners: Worth It in Sacramento? · Central Heating and Cooling Systems: What Is It & How Does It Work?
- 15+ Years Serving Sacramento
- CA License #967727
- 100% Satisfaction Guarantee
Every install begins with a Manual J load calculation.
01Residential design-build
A system that fits
your house.
Not a template.
We engineer every HVAC system to the specific house it serves, never to a template or whatever the last installer had on the truck. No two homes are alike: a Craftsman with 12-foot ceilings, a ranch with a converted garage and a new build on an infill lot each need their own engineering. Our guide to how central heating and cooling systems work explains the furnace, heat pump and packaged pairings Sacramento homes use.
We sit down with your architect or GC, review the plans, and deliver a complete HVAC design that is Title-24 compliant, properly sized, and engineered to run quietly for decades.
02What great residential HVAC looks like
Four things most installers skip.
The four things most installers skip are a Manual J load calculation, Manual D duct design, right-sized equipment selection, and zoning and controls where one thermostat does not fit the floor plan. Those four explain why one house has quiet, even comfort for 20 years, and the one next door has hot bedrooms, whistling vents, and a replacement bill at year 12. On equipment selection, our guide to whether a variable-speed air conditioner is worth it in Sacramento works through the costs. Before you hire anyone, our guide to choosing a heating and air conditioning contractor lists what to check.
Load calculation
We run Manual J on every project to size the equipment to your home's actual thermal loads, not a rule-of-thumb guess.
Duct design
Manual D for duct layout ensures every room gets the airflow it needs, without hot rooms, cold rooms, or whistling registers.
Equipment selection
Right-sized, efficiency-matched, and chosen to work with the home's layout, not whichever brand pays the highest spiff.
Zoning & controls
Multi-zone dampers or mini-split zones for homes where one thermostat does not fit the whole floor plan.
03Selected residential portfolio
Homes & builds
across the region.
A selection of residential design-build, new-construction, and multi-family projects Alpha Mechanical has delivered for Sacramento-area homeowners and builders.
Clove Meadows
Multi-Family
Sevilla Estates
Residential
Sorello
Elevations
Sorello, Ext. Elev.
Residential
Stone Temple
Residential
Residential Blueprint
Design Phase
Residential Condo
Multi-Family
Residential Elevation
Design Phase
04Why Alpha Mechanical
Built to be the last
HVAC company
your home ever needs.
You get a real mechanical engineer, factory-trained techs, and warranties that follow the house if you sell, with no short-cut design and no upselling.
- 01Complete HVAC engineering reviewed by a licensed mechanical engineer
- 02Title-24 Energy Code compliance built into every design
- 03Factory-trained technicians on every major brand
- 04Transferable workmanship guarantee if you sell the home
- 05Up to 25,000 sq ft single-system design (custom estates, multi-family)
- 06Work with your architect, GC, and home designer from day one
Your next home · Your next HVAC
Build with us.
Stay comfortable for decades.
Whether you're breaking ground on a custom home or replacing a 20-year-old system, we'll engineer it right the first time. Free in-home consultation across the Sacramento region.
Guides in this topic
More on residential system design and installation
- How to Choose a Heating and Air Conditioning Contractor: 8 Checks Before You Sign15 min read
- Variable Speed Air Conditioners: Worth It in Sacramento?12 min read
- Central Heating and Cooling Systems: What Is It & How Does It Work?15 min read
- Mobile Home HVAC Systems: Options, 2026 Costs, and the Rules That Are Different9 min read