SumZero Energy Systems

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Introduction

Welcome to SumZero, Massachusetts' leading heat pump design, installation, and maintenance specialist. We're dedicated to delivering top-notch customer service, aiming to build enduring partnerships with every sale.

Overview

Hired 16 times

Serves Holliston, MA

Background checked

27 employees

5 years in business

Business hours

This pro hasn't listed their business hours.

Payment methods

This pro accepts payments via Cash, Check, and Credit card.

Social media

Facebook, Instagram

Featured Projects

7 photos

Reviews

Customers rated this pro highly for responsiveness, professionalism, and punctuality.

Great 4.7

29 reviews

5

90%

4

3%

3

0%

2

0%

1

7%

This pro's rating is a combination of reviews posted by customers both on and off of Thumbtack. Thumbtack cannot verify external reviews.

Read reviews that mention:

Phil E.

Jun 6, 2024

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Hired on Thumbtack

SumZero was very friendly and had a lot of helpful info to share about my HVAC system. The particular person who came, Nilson, was very nice and knowledgeable!

Details: Routine maintenance • Routine maintenance • Attic • Outside • Condo or apartment

SumZero Energy Systems's reply

Thank you so much Phil for your kind review! We are so glad that Nilson was able to assist you! Please feel free to reach out should you require any additional assistance.

Central Air Conditioning Repair or Maintenance

Frantz S.

May 20, 2024

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Hired on Thumbtack

They were professional and got the job done in the timely manner. They also provided us with options on getting a new HVAC which we may explore down the road.

Details: Routine maintenance • Routine maintenance • Outside • Outside • House

SumZero Energy Systems's reply

Frantz, thank you so much for your review! We are so happy that we were able to assist you with your issue. We look forward to continue to serve you in the future!

Central Air Conditioning Repair or Maintenance

Elle W.

Jun 12, 2024

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Hired on Thumbtack

Great communication and Nelsin was so great!

Details: Routine maintenance • Routine maintenance • Outside • Outside • House

SumZero Energy Systems's reply

Thank you so much for your kind review! It was our pleasure to serve you!

Central Air Conditioning Repair or Maintenance

Desiree G.

May 21, 2024

·

Hired on Thumbtack

Great on-site estimate, on time.

Details: Remove old heating system • Furnace • As recommended by professional • Attic • 1,000 - 2,000 sq ft • Two-story building • Condo/Apartment

SumZero Energy Systems's reply

Thank you so much for your review Desiree! We are so glad that we were able to assist you!

Heating System Installation or Replacement

Credentials

Background Check

David Sampaio