$1.9K
Average homeowner savings
stars
4.9
Stars on Google
5K+
Total installations in Massachusetts
129K+
Metric tons of C02 saved

Replacing your HVAC system doesn’t have to be a nightmare. Here’s how we’re making things more efficient–for you and the planet.

Working with us is a breeze.

HVAC installation contractor company in Massachusetts for AC systems, furnaces, boilers and hot water heaters
Other contractors require constant management so they don’t disappear or go over budget.
We manage everything from estimate to installation. Tetra’s on top of the job so you don’t have to be.
Other contractors leave you feeling uncertain, taking weeks to respond, or ignoring you completely.
With Tetra, you get a team you can contact any time. We’ll never give you the cold shoulder.

Stress-free every step of the way

1.
Answer a few questions and we’ll send you a detailed estimate right away.
2.
Review your estimate virtually with a heating and cooling expert.
3.
Choose your system and an installation date that works for you.
4.
Answer the door on installation day. We’ll manage everything else.
stars
“I had a ductless mini split installed.  Very professional, responsive, excellent quality, and exceptional price.  Half the costs of all other bids I got for the job.”
Person
Jack O.
Springfield, MA
mapBuderus (Bosch) and Well-Mclain boilers - buy online for installation in Massachusetts
stars
“I had a ductless mini split installed.  Very professional, responsive, excellent quality, and exceptional price.  Half the costs of all other bids I got for the job.”
Person
Jack O.
Springfield, MA

No ghosting, guaranteed

Our trusted installers show up on time, do top-quality work, and don’t leave until you’re completely satisfied.

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Boiler Installer in Plymouth

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Furnace installer in North Andover

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Mini split installer in Brockton

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Boiler specialist in Boston

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Boiler Installer in Plymouth

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Zero hidden fees

We lock in your price upfront so you know exactly what you'll pay on installation day—no surprises, no exceptions.

stars
“I was skeptical at first when I saw the price, but there were no catches at all. Very high quality work and excellent customer service.”
Person
Steve C.
Waltham, MA
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You’ll never overpay.

Markups, sales fees, and other costs mean you pay more than you should.
We charge up to $4K less than others with wholesale pricing, exclusive discounts, and zero markups or extra fees.
Other contractors leave you to figure out financing on your own.
We’ll help you set up a payment plan that works for your budget.

High quality comes standard.

HVAC installers performing heating and cooling system replacement ordered online with Tetrarectangle
stars
“Tetra’s crew was very respectful and did high-quality work during the gas boiler job. They left my house spotless, too.”
Person
Hillary K.
Brockton, MA
Other contractors install lower-quality parts to save money, leading to costly fixes down the line.
We only install what we’d use in our own homes. Rest assured your system will last for years.
Other contractors cut corners to get the job done faster.
We firmly believe in done right, not done fast. We’re finished when you’re 100% happy.

Save money, save the planet

Installing an energy-efficient air conditioner can have a big impact on your monthly energy bill. Homeowners who opt for energy efficient models report savings of 25% or higher.

By choosing high-efficiency appliances, you're also doing your part to fight climate change. Replacing your old air conditioner is almost as effective as giving up your car!

Installing energy-efficient air conditioners and high-efficiency appliances reduces energy bills to help the environmentrectangle

Your purchase is completely covered by us

What is

Fully Covered™

by Tetra?

Your brand new heating and cooling system is only as good as it’s maintenance. As powerful and efficient as new systems are (and they are, it’s crazy), if you don’t take care of them, they inevitably deteriorate, or worse 🥶.

Instead of fussing around with what’s covered, what’s not, what does a visit cost – we’re gonna save you the headache.

We’re gonna take care of your system for you.
We’re gonna cover everything for 10 years.
And it’s not gonna cost you a penny extra.

No annual payment plans, no upselling during visits. We believe in the equipment we’re selling and our incredible install partners so much, we’re willing to eat the cost if anything goes wrong.

No nonsense. Just great equipment that we’ll keep in tip-top shape. That’s Fully Covered️ by Tetra.

Find the right Fully Covered️™ by Tetra equipment for your home
Get Started
Compare the cost of a Fully Covered™ by Tetra system vs other national service companies
Fully Covered™️ by Tetra
The other guys

10 years of guaranteed performance
1 year, labor only If something breaks, you foot the bill to fix the parts.
All included, tune-ups, repairs, everything
Something happens on day 366, that’s on you
We’ll know if there’s an issue before you do
?
Tune-ups included
$100-$200 just to take a look
$0 extra
😬

Replacing your HVAC system really can be painless.

Ready to get started?

Frequently asked questions

When will you install my system?

We can install your system as soon as 7 days after you put down your deposit.

Who is doing the installation?

One of Tetra's fully vetted, top-quality installers will handle the job. We only work with the best local pros.

Will I be charged extra if something unexpected happens on installation day?

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.

How does the warranty work? If there are any issues, who do I call? Does Tetra fix it? What’s covered?

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.

You haven’t been to my house. How do you know what I need?

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.

How much does it cost to run the system on a monthly basis?

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.