AC Installation & Replacement Services

AC Installation & Replacement Services: Stay Cool in Southborough, MA

The Local Experts for New Air Conditioning Systems in the MetroWest Area

When the humid Massachusetts summer arrives, a reliable, high-performing air conditioning system isn't a luxury—it's a necessity. At Metro West Mini Splits, we specialize in professional AC installation and replacement services in Southborough, MA, and the surrounding MetroWest region.


Whether you are upgrading an old, inefficient system or installing a brand-new central air or ductless cooling system, our certified technicians ensure your home receives the perfect solution for lasting comfort and energy savings.


We don't just replace units; we engineer customized cooling solutions to perfectly match the unique demands of your Southborough home.

Why Replace Your Old AC System?

If your existing air conditioner is over ten years old, requires frequent repairs, or struggles to keep your home consistently cool, it's time to consider a replacement. Upgrading to a new, high-efficiency system provides immediate benefits:


  • Dramatically Reduced Energy Bills: Modern AC units (with high SEER2 ratings) use significantly less energy to deliver superior cooling.
  • Superior, Consistent Comfort: Eliminate hot and cold spots with a properly sized and installed system.
  • Eco-Friendly Operation: Newer refrigerants (like R-410A) are safer for the environment.
  • Access to Valuable Rebates: New installations often qualify for Mass Save incentives and federal tax credits, drastically lowering your upfront costs.

Our 5-Step AC Installation Process

A successful installation is built on precision, expertise, and attention to detail. Our comprehensive process ensures your new cooling system operates flawlessly from day one:


1. Personalized Cooling Assessment

  • Our service begins with a professional consultation at your Southborough home. We discuss your comfort goals, examine your existing ductwork (if applicable), and evaluate your home’s construction, insulation, and sun exposure.

2. Load Calculation (Manual J)

  • This is the most critical step. We perform a Manual J load calculation to accurately determine the exact capacity (tonnage) your home requires. Installing an AC unit that is too large or too small is the leading cause of poor performance and short system lifespan. We guarantee precise sizing every time.

3. Expert System Installation

  • Our certified technicians handle the complete installation, including the careful removal and disposal of your old equipment. We ensure the new unit, thermostat, and all line sets are installed to the manufacturer’s specifications and local Southborough building codes. We work cleanly and efficiently, treating your home with respect.

4. System Start-Up and Testing

  • Once installed, we rigorously test the system’s performance, check refrigerant levels, and verify proper airflow to ensure it is meeting its maximum efficiency rating.

5. Customer Education

  • We walk you through the operation of your new thermostat or smart control system, explain basic maintenance, and answer any questions you have about your new high-efficiency AC system.
A man in a blue uniform is working on an air conditioner.
A man is standing in front of a large air conditioner on the side of a house.
A row of air conditioners are sitting outside of a brick building.

Specializing in High-Efficiency & Ductless Options

As Metro West Mini Splits, we are experts in both traditional central air conditioning and advanced ductless cooling technology:

Ductless Mini-Split AC Systems

Ideal for homes without existing ductwork, additions, or areas requiring zoned control (like attics, garages, or sunrooms). We are proud to be a trusted Mitsubishi Electric Diamond Contractor.

Central Air Conditioning Replacement

We install high-efficiency traditional central air systems, focusing on brands known for durability and exceptional energy performance (18+ SEER2).

Central Air Conditioning Replacement

We install high-efficiency traditional central air systems, focusing on brands known for durability and exceptional energy performance (18+ SEER2).

Ready for Reliable, Cool Comfort?

Stop dreading your utility bill and start enjoying reliable cooling this summer. Trust the local experts at Metro West Mini Splits for your AC installation or replacement in Southborough, MA.


Contact us today to schedule your free, no-obligation estimate!


Call 508-388-6816 or Request Service Online.

  • How do I know if I need a new AC system?

    Common signs include frequent breakdowns, inconsistent cooling, rising energy bills, or a system that’s over 10–15 years old. If repairs are becoming costly or your home isn’t staying comfortable, a replacement may be the most efficient and cost-effective option.

  • What types of AC systems does Metro West Mini Splits install?

    We specialize in ductless mini split systems, but we also install multi-zone setups, heat pump systems, and high-efficiency ducted units. We help you choose the best option for your home’s size, layout, and comfort goals.


  • What are the benefits of installing a mini split system?

    Mini splits provide energy efficiency, quiet operation, zoned temperature control, and easy installation without ductwork. They’re ideal for additions, older homes, garages, basements, or any space where traditional HVAC isn’t practical.


  • How long does an AC installation take?

    Most mini split installations are completed in one day, depending on the number of zones and system complexity. We work efficiently to ensure minimal disruption to your home.


  • What can I expect during the installation process?

    Our technicians will evaluate your space, determine the best indoor and outdoor unit placement, install all components, test the system, and walk you through how to use it. We clean up thoroughly and ensure everything is running perfectly before we leave.


  • Will a new AC system lower my energy bills?

    Yes. Modern mini split and heat pump systems are significantly more efficient than older AC units. With advanced inverter technology, your system only uses the energy it needs, often resulting in noticeable energy savings.


  • Do you offer financing for AC installation or replacement?

    Absolutely. We offer flexible financing options to make upgrading your home comfort system affordable and stress-free. Ask us about current plans and approvals.

  • Do your installations come with a warranty?

    Yes. All equipment includes manufacturer warranties, and our work is backed by a professional installation guarantee for your peace of mind.


  • Can Metro West Mini Splits replace an existing traditional AC system with a mini split?

    Yes—whether you’re upgrading from a window unit, central AC, or older ductless system, we can recommend and install the perfect replacement to improve comfort and efficiency.


  • How do I get a quote for AC installation or replacement?

    Simply contact us to schedule a free, no-pressure consultation. We’ll assess your space, discuss your comfort needs, and provide a clear, accurate estimate.


Contact Us Today to Get Started