Call us: 831.372.0728

344 Roberts Ave | Seaside, CA 93955

Our Hours

Weekdays: 9AM-5PM

Heating & Cooling Upgrades & Replacements

Modernize your home or business for reliable comfort and energy efficiency

Whether your current system is aging, inefficient, or in need of replacement, Carswell Heating & Sheet Metal can help. We provide professional upgrades and modernizations for heating and cooling systems, ensuring your home or business stays comfortable year-round while maximizing efficiency and reducing long-term costs. Our team evaluates your current setup and recommends the best solutions tailored to your space, usage, and budget.

Why Homeowners Choose Us

Experienced Technicians: Skilled in modernizing all major heating and cooling systems
Energy-Efficient Upgrades: Systems designed to lower energy costs and improve comfort
Tailored Solutions: Recommendations based on your home or business layout and usage
Transparent Estimates: Clear pricing without hidden fees
Reliable, Family-Owned Service: Serving Monterey Peninsula since 1949 with licensed and insured expertise

Upgrade, Modernization & Replacement Options

We install high-efficiency air conditioners, heat pumps, and mini splits for homes without existing cooling systems. Every installation is fully customized to meet your home’s needs, ensuring comfort, efficiency, and reliability throughout the year.

Before modernizing your system, consider:

System Age & Efficiency: Older units may be less reliable and costlier to operate or repair
Ductwork & Layout: Existing ductwork may need modifications for optimal airflow
Usage & Comfort Needs: Number of occupants, daily routines, and temperature preferences
Fuel Type & System Type: Gas, electric, heat pump, or mini-split options
Future-Proofing: Modern systems are designed to last longer and integrate with smart controls

Understanding these factors helps us recommend the right solution for your home or business, ensuring a smooth upgrade process and lasting comfort.

What to Expect When You Choose Carswell

When you work with Carswell Heating & Sheet Metal for upgrades or replacements, we make the process straightforward, transparent, and professional:

We inspect your current heating and cooling systems, ductwork, and overall layout. We also assess usage patterns to determine the most effective solutions.

Based on your evaluation, we recommend upgrades, modernizations, or replacements that meet your comfort, efficiency, and budget goals. Click here or scroll down to learn more about system types.

You’ll receive a clear, all-inclusive quote covering covering equipment, labor, and any necessary modifications. Our all-inclusive approach ensures fair pricing without unnecessary itemization.

Our licensed and insured technicians handle all installations, including ductwork adjustments, system calibration, and verification of proper airflow and performance.

After installation, we perform full system testing and provide support for any issues during the first year.

From initial assessment to final testing, Carswell Heating & Sheet Metal ensures every upgrade or replacement delivers reliable, efficient comfort for your home or business.

Schedule Your Heating & Cooling Upgrade

Invest in comfort, efficiency, and peace of mind with a professional heating or cooling system upgrade. Carswell Heating & Sheet Metal has helped hundreds of Monterey Peninsula homes and businesses modernize their systems since 1949.

Explore Your Home’s Heating & Cooling Options

Choosing the right heating and cooling system depends on your home, lifestyle, and comfort goals. Whether you’re upgrading an older system, replacing a failing unit, or installing a completely new system, we’ll help you understand your options. From whole-home forced-air furnaces and central air conditioners to heat pumps and ductless mini-splits, we guide you toward the solution that best fits your space, efficiency goals, and budget.

Learn more by clicking on the options or visiting the System Options page.

Copyright © 2025. All rights reserved | Privacy Policy