Affordable, efficient AC replacement.
Need a new air conditioner? No sweat. Work with a trusted local pro and forget the phone tag, surprise costs, and other stress.


Working with us is a breeze.


Stress-free every step of the way


No ghosting, guaranteed
Our trusted installers show up on time, do top-quality work, and don’t leave until you’re completely satisfied.


Boiler Installer in Plymouth


Furnace installer in North Andover


Mini split installer in Brockton


Boiler specialist in Boston


Boiler specialist in Boston


Boiler specialist in Boston
Zero hidden fees
We lock in your price upfront so you know exactly what you'll pay on installation day—no surprises, no exceptions.


You’ll never overpay.
High quality comes standard.


Frequently asked questions
We can install your system as soon as 7 days after you put down your deposit.
One of Tetra's fully vetted, top-quality installers will handle the job. We only work with the best local pros.
No. Our pricing is firm. We’ll confirm the cost of your project after your walkthrough and there will be no changes in price after that point—no matter what happens on installation day.
Your warranty kicks in as soon as your system is installed. Please note, your warranty is through the manufacturer of your system, not through Tetra. Coverage varies depending on the manufacturer, so you’ll need to check your specific warranty to see what’s covered. You don’t have to pay for anything that’s covered under your warranty.
Many warranties require things like online registration or proof of annual maintenance, so it’s smart to check the details of your warranty right away. If you ever have issues with your system or questions about your warranty, please give us a call at (413) 930-4281.
We can make specific recommendations based on the information you provided and our experience installing hundreds of systems. Plus, the pre-installation walkthrough gives us an opportunity to confirm the recommendation.
Monthly costs vary based on usage, the number of people in your household, and other factors. However, homeowners who install energy-efficient appliances report energy cost savings of 25% or higher.