Air Conditioner Installation
Expert Air Conditioning Installation Services in Stockton, CA
When Stockton summers heat up, a reliable air conditioner is essential for your home’s comfort. At Delta Sierra Mechanical, we specialize in expert air conditioning installation services for homeowners throughout the area. Whether you’re upgrading an old system or installing a new one, our team ensures your home stays cool and energy-efficient. As leading air conditioning contractors, we believe in delivering on what was promised, every time.


Trusted AC Installation Contractors
As your local experts, we combine technical skill with a customer-focused approach. We understand Stockton’s hot summers and recommend the best AC systems for your home. Our team is highly trained and experienced in installing all types of air conditioning systems, including high-performance units designed to save you money on energy bills. We take the time to explain your options and ensure your new system perfectly meets your cooling needs.


The Benefits of a New Air Conditioner
Upgrading to a new AC system provides significant long-term benefits for your home and your wallet. Modern air conditioners are far more energy-efficient, which means you can enjoy lower utility bills while experiencing better comfort with consistent cooling throughout your home. A new system also comes with advanced filtration to improve indoor air quality by reducing allergens and pollutants. And for potential resale value, a new, energy-efficient AC adds a strong selling point to your home.

Heat Pumps Are As Good As They Say!
Heat pumps are the future of HVAC due to their energy efficiency and incredible rebates and tax incentives. They are more expensive than the traditional systems you bought in the past. This is due to their advanced technology. Rebates and utility savings significantly reduce their cost. This is the main reason why they are the fastest-growing HVAC installations in California. Here are the savings you can qualify for when you choose heat pumps with Delta Sierra:
SMUD: $2,000 rebate
Inflation Reduction Act (IRA): $2,000 tax credit
HEEHRA: $4,000 – $8,000 rebate (based on income)

Finding the Right HVAC System for Your Home
We install a wide range of heating and cooling systems to suit your home's unique needs. Our experts will help you choose the best technology to provide reliable comfort and efficiency.
Gas Package Unit: This all-in-one heating and cooling system is housed in a single outdoor unit, making it an excellent choice for homes with limited indoor space.
Split System: The most common HVAC setup, a split system uses an indoor and an outdoor unit. It's ideal for homes with existing ductwork and offers efficient climate control.
Ducted Mini-Splits: Operating like a traditional split system, this unit uses small, concealed ductwork to provide more efficient zoned heating and cooling.
- Ductless Mini-Splits: Perfect for older homes or additions, these systems use individual air handlers mounted in different rooms to provide zoned comfort without the need for ductwork.

Signs You Need a New Air Conditioner
It might be time to consider a new air conditioning installation if:
Your current AC is over 10 years old and inefficient. Older systems lose their cooling power, which can lead to higher bills.
Repairs are frequent and expensive. If you’re constantly paying to fix your unit, a replacement may be more cost-effective.
Your home is not cooling evenly. Hot spots in certain areas are a clear sign your system is failing to distribute air properly.
Energy bills are rising even though your usage hasn’t changed.
Strange noises, odors, or leaks are coming from your system.
AC Installation Packages
AC/GAS Split System

Optimum
Your Warranty Protection: 10 Year Labor, 10 Year Parts, 20 Year Heat Exchanger
Your Comfort: Quietest System Consistent, Even Temperatures
Your Peace Of Mind: $500 No-Frustration Guarantee, Property Protection Guarantee, No-Lemon Guarantee,1 Year Club Membership, 2 Year 100% Satisfaction Guarantee
Materials and Labor: All materials and labor included
Advanced Technology & Convenience: Increased Humidity Control from your smartphone
Indoor Air Quality: Top-of-the-line filtration, Ultra Violet Germicidal Light
Your Energy Savings: Most Energy Efficient Up to 35%** Savings on cooling and variable speed technology Up to 18%** Savings on heating with modulating gas valve and variable speed blower
Supreme
Your Warranty Protection: 5 Year Labor, 10 Year Parts, 20 Year Heat Exchanger
Your Comfort: Quietest System, Less Peaks and Valleys
Your Peace Of Mind: $500 No-Frustration Guarantee, Property Protection Guarantee, No-Lemon Guarantee, 1 Year Club Membership, 2 Year 100% Satisfaction Guarantee
Materials and Labor: All materials and labor included
Advanced Technology & Convenience: WI-FI Thermostat Control from your smartphone
Indoor Air Quality: Top-of-the-line filtration, Ultra Violet Germicidal Light. Your Energy Savings Increased Energy Efficiency Up to 25%** Savings on cooling Up to 15%** Savings on heating with 2-Stage gas valve and variable speed blower
Premier
Your Warranty Protection: 2 Year Labor, 10 Year Parts, 20 Year Heat Exchanger
Your Comfort: Noise Reduction
Your Peace Of Mind: $500 No-Frustration Guarantee, Property Protection Guarantee, No-Lemon Guarantee, 2 Year 100% Satisfaction Guarantee
Materials and Labor: All materials and labor included
Advanced Technology & Convenience: Programmable Thermostat
Indoor Air Quality: Upgraded Filtration
Your Energy Savings: Increased Energy Efficiency Up to 15% Savings on cooling, Up to 16% Savings on heating with modulating gas valve
Basic
Your Warranty Protection: 1 Year Labor, 10 Year Parts, 20 Year Heat Exchanger
Your Peace Of Mind: Property Protection Guarantee
Materials and Labor: All materials and labor included
Advanced Technology & Convenience: Basic Thermostat
Your Energy Savings: Minimum Energy Efficiency Requirements Met, Up to 10% Savings on cooling and single-stage compressor, Up to 5% Savings on heating with single-stage gas valve
Gas Package Unit

Supreme
- Your Warranty Protection: 5 Year Labor, 5 Year Parts
- Your Comfort: 3-year Comfort Guarantee, Quieter System, Less Peaks and Valleys
- Your Peace Of Mind: $500 No-Frustration Guarantee, Property Protection Guarantee, No-Lemon Guarantee, 1 Year Club Membership, 2 Year 100% Satisfaction Guarantee
- Materials and Labor: All materials and labor included
- Advanced Technology & Convenience: WI-FI Thermostat Control from your smartphone
- Indoor Air Quality: Upgraded filtration, Ultra Violet Germicidal Light
- Your Energy Savings: Increased Energy Efficiency Up to 35%, Savings on cooling with 2-Stage compressor and variable speed blower
Premier
Your Warranty Protection: 1 Year Labor, 10 Year Parts
Your Comfort: 2-year Comfort Guarantee
Your Peace Of Mind: $500 No-Frustration Guarantee, Property Protection Guarantee, No-Lemon Guarantee, 2 Year 100% Satisfaction Guarantee
Materials and Labor: All materials and labor included
Advanced Technology & Convenience: Programmable Thermostat
Indoor Air Quality: Upgraded Filtration
Your Energy Savings: Increased Energy Efficiency Up to 25%, Savings on cooling with single-stage compressor - exceeds minimum requirements, multi-speed blower
Premier - Dual Fuel
- Your Warranty Protection: 1 Year Labor, 10 Year Parts
- Your Comfort: 2-year Comfort Guarantee
- Your Peace Of Mind: $500 No-Frustration Guarantee, Property Protection Guarantee, No-Lemon Guarantee, 2 Year 100% Satisfaction Guarantee
- Materials And Labor: All materials and labor included
- Advanced Technology & Convenience: Programmable thermostat
- Your Energy Savings: Increased Energy Efficiency Up to 25%, Savings on cooling and single-stage compressor-exceeds minimum requirements
Heat Pump Split System

Optimum
- Your Warranty Protection: 10 Year Labor, 10 Year Parts
- Your Comfort: 5-Year Comfort Guarantee, Quietest System, Consistent, Even Temperatures
- Your Peace Of Mind: $500 No-Frustration Guarantee, Property Protection Guarantee, No-Lemon Guarantee, 2 Year Club Membership, 2 Year 100% Satisfaction Guarantee
- Materials and Labor: All materials and labor included
- Advanced Technology & Convenience: Wi-Fi, Communicating Thermostat, Increased Humidity Control from your smartphone
- Indoor Air Quality: Top of the line filtration, Ultra Violet Germicidal Light, Odor Control, Duct Cleaning
- Your Energy Savings: Most Energy Efficient Up to 50% Savings on cooling with variable speed compressor, variable-speed blower
Supreme
- Your Warranty Protection: 5 Year Labor, 10 Year Parts
- Your Comfort: 3-Year Comfort Guarantee, Quiet System, Less Peaks and Valleys
- Your Peace Of Mind: $500 No-Frustration Guarantee, Property Protection Guarantee, No-Lemon Guarantee, 1 Year Club Membership, 2 Year 100% Satisfaction Guarantee
- Materials and Labor: All materials and labor included
- Advanced Technology & Convenience: WI-FI Thermostat Control from your smartphone
- Indoor Air Quality: Upgraded filtration, Ultra Violet Germicidal Light
- Your Energy Savings: Increased Energy Efficiency Up to 35% Savings on cooling with 2-Stage compressor and variable speed blower
Premier
- Your Warranty Protection: 2 Year Labor, 10 Year Parts
- Your Comfort: 2-Year Comfort Guarantee
- Your Peace Of Mind: $500 No-Frustration Guarantee, Property Protection Guarantee, No-Lemon Guarantee, 2 Year 100% Satisfaction Guarantee
- Materials And Labor: All materials and labor included
- Advanced Technology & Convenience: Programmable Thermostat
- Indoor Air Quality: Upgraded Filtration
- Your Energy Savings: Increased Energy Efficiency Up to 25% Savings on cooling with Single-Stage compressor - Exceeds minimum requirements Multi-Speed Blower
Basic
Your Warranty Protection: 1 Year Labor, 10 Year Parts
Your Comfort: 1-Year Comfort Guarantee
Your Peace Of Mind: Property Protection Guarantee, 2-Year 100% Satisfaction Guarantee.
Materials and Labor: All materials and labor included
Advanced Technology & Convenience: Basic Thermostat
Your Energy Savings: Minimum Energy Efficiency Requirements Met Up to 15% Savings on cooling with single-stage compressor, Standard Blower
Heat Pump Package

Optimum
Your Warranty Protection: 10 Year Labor, 10 Year Parts
Your Comfort: 5 Year Comfort Guarantee, Quietest System, Consistent even temperatures
Your Peace Of Mind: $500 No-Frustration Guarantee, Property Protection Guarantee, No-Lemon Guarantee, 2 Year Club Membership, 2 Year 100% Satisfaction Guarantee
Materials And Labor: All materials and labor included
Advanced Technology & Convenience: Wi-Fi thermostat, Increased Humidity Control Control from your smartphone
Indoor Air Quality: Top of the line filtration, Ultra Violet Germicidal Light, Odor control, Duct cleaning
Your Energy Savings: Most Energy Efficient Up to 50% Savings on cooling with variable speed compressor, variable speed blower
Supreme
Your Warranty Protection: 5 Year Labor, 10 Year Parts
Your Comfort: 3 year Comfort Guarantee, Quiet System
Your Peace Of Mind: $500 No-Frustration Guarantee, Property Protection Guarantee, No-Lemon Guarantee, 1 Year Club Membership, 2 Year 100% Satisfaction Guarantee
Materials And Labor: All materials and labor included
Advanced Technology & Convenience: WI-FI Thermostat Control from your smartphone
Indoor Air Quality: Upgraded filtration
Your Energy Savings: Increased Energy Efficiency Up to 35% Savings on cooling, with 2-Stage compressor and variable speed blower
Premier
Your Warranty Protection: 1 Year Labor, 10 Year Parts
Your Comfort: 2 year Comfort Guarantee
Your Peace Of Mind: $500 No-Frustration Guarantee, Property Protection Guarantee, No-Lemon Guarantee, 2 Year 100% Satisfaction Guarantee
Materials And Labor: All materials and labor included
Advanced Technology & Convenience: Programmable Thermostat
Your Energy Savings: Minimum Energy Efficiency Requirement met, Up to 15% Savings on cooling with single-stage compressor, multi-speed blower

What our customers are saying

Highly Recommended
"We are very satisfied with Delta and our technician, Aaron. Very knowledgeable, straightforward, quick, and forthcoming! I appreciate the honesty and professionalism!! I have recommended Delta and will continue to do so. One of the very few companies that still has core values based on transparency and integrity! Thank you, Aaron and Delta!!"
- Norma P.

Knowledgeable & Efficient
"Henry was knowledgeable and efficient. He arrived on time, quickly determined the issue, and in less than an hour the entire job was completed. The price was reasonable. I highly recommend this company."
- Charlene S.

Above & Beyond
"I have an HVAC warranty, so they sent Chris out. He arrived an hour after I called. He was polite, very professional, and knowledgeable. He even went out of his way to help take down my hummingbird feeder and put it back up after I filled it. I couldn’t reach it. I signed up for their maintenance plan after hearing all the benefits. I would and did recommend this company and Chris."
- Vickie H.
Schedule Your AC Installation Today
Don't let an old, inefficient AC unit leave you in the heat. Delta Sierra Mechanical makes air conditioning installation services simple and stress-free. Contact us today to schedule a free consultation and get a new, high-performance system that will keep you cool and comfortable for years to come.