Heat Pump Repair Near Holliston, MA

$99 Heat Pump Repair Diagnostic

$89 Heat Pump Repair Diagnostic

$79 Heat Pump Repair Diagnostic

$99
Regular Price
$99
$89
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Regular Price
$99
$79
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Noticing strange sounds, weak airflow, or rising energy bills? See the full list of hidden HVAC warning signs before it’s too late ↓

Heat Pump Repair Near Holliston, MA

(508) 443-6451
(508) 443-6452
(508) 443-6453
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Our Promise to You is to Perform the Correct Heat Pump Repair at an Honest Price

When you need Heating services, trust the experts at SumZero Energy Systems. Our technicians have the skills, knowledge, and tools to fix most Heat Pump problems on the spot.

When your SumZero Energy Systems technician arrives at your home they will explain all of your options before starting repairs, so you can make informed decisions before any work begins. We service and repair most brands of equipment, so you can trust us to perform a professional Repair job.

We’re not happy until you’re happy.

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SumZero Energy Systems is Here for All of Your Heating Needs!

  • Fully Stocked Trucks
  • Friendly Professionals
  • Fully Licensed & Insured
  • Same Day Service Available
  • 100% Satisfaction Guarantee
  • Complimentary 2nd Opinions

Still have questions? Contact Us for all your Heating related questions!

SumZero Energy Systems is Proudly & Professionally Offering Related Heat Pump Repair Services in the Holliston, MA area.

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Top-Quality Heating Services Near Holliston, MA

Call Today for Your Heat Pump Repair!

Get the Reliable, High-Quality Service You Deserve

SumZero Energy Systems | Holliston, MA‘s Trusted Heating Professionals

We offer a full line of installation, maintenance & repair that your home’s Heating may require, no matter the problem or time of year. You can count on the trusted professionals at SumZero Energy Systems for exceptional service & quality craftsmanship.

SumZero Energy Systems is proudly & professionally serving the greater Holliston, MA area.

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Signs Your Heat Pump Is in Need of Repair From SumZero Energy Systems

Symptoms and Risks You Shouldn’t Ignore

It should be noted that it is always important to have annual maintenance performed on your heat pump to ensure it is running properly and lasts as long as possible.

The average lifespan of a heat pump is between 15 and 20 years. By ensuring your heat pump is properly maintained, you can make your heat pump last much longer, saving you money on an unnecessary replacement.

Increased energy bills without explanation

Sign

Refrigerant leaks or poor efficiency due to component wear

Risk

Higher utility costs and eventual system failure without timely maintenance

Estimated Time for Diagnostic:
30-45 minutes

Strange noises from the outdoor heat pump unit

Sign

Loose parts, failing compressor, or debris in the fan

Risk

Noise often indicates mechanical failure, potentially causing the system to stop working completely

Estimated Time for Diagnostic:
30-60 minutes

Reduced airflow or weak performance

Sign

Clogged filters, dirty coils, or ductwork issues

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Risk

Poor indoor comfort and strain on the heat pump, reducing efficiency and lifespan

Estimated Time for Diagnostic:
45 minutes

Outdoor heat pump unit frozen or iced over

Sign

Blocked airflow, refrigerant leaks, or faulty defrost controls.

Risk

Ice buildup can damage components, leading to costly repairs or system replacement.

Estimated Time for Diagnostic:
45–60 minutes

No switching between heating and cooling

Sign

Heat Pump faulty reversing valve or control board issues

Risk

System inefficiency leads to discomfort and higher energy bills.

Estimated Time for Diagnostic:
60-90 minutes

Schedule a Comprehensive Home Heat Pump Repair Near You in Holliston, MA

Is your home’s heating system acting up? Trust SumZero Energy Systems for reliable repair services near you. Schedule your appointment today and get expert help on the way!

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Frequently Asked Questions About Heat Pump Repair

What Homeowners Often Ask Us About Heat Pump Repairs—And How We Help

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What makes SumZero a trusted heat pump repair company?
We specialize in heat pumps, offer honest pricing, and prioritize long-term comfort. Our experienced team is fully licensed, insured, and always respectful of your home.
Do you offer emergency heat pump repair?
Yes. If your system fails during extreme temperatures, contact us right away—we prioritize urgent repairs to keep your home safe and comfortable.
Will the repair affect my Mass Save rebate eligibility?
No, repairs won’t affect your rebate eligibility. In fact, having a well-maintained system is often a requirement to qualify for incentives.
What causes heat pumps to stop working in winter?
Freezing coils, dirty filters, or thermostat problems are common winter issues. Our technicians are trained to restore your system to proper heating mode quickly.
How quickly can you schedule a repair visit?
We offer prompt scheduling and do our best to accommodate same-day or next-day service depending on your location and availability.
Is it better to repair or replace my heat pump?
That depends on the age and condition of your system. If it’s under 10 years old and repairable, we usually recommend fixing. We’ll help you weigh your options honestly.
Can you fix the heat pump on the first visit?
In most cases, yes. Our team arrives prepared with common parts and tools. If we need to order something, we'll explain the timeline and next steps clearly.
What’s included in the diagnostic visit?
Our $99 diagnostic includes a full inspection of refrigerant levels, compressor health, thermostat function, airflow, and any error codes or performance issues.
Do you repair all heat pump brands?
Yes, our technicians are trained to diagnose and repair nearly all major heat pump brands, including ducted and ductless models.
How do I know if my heat pump needs repair?
Look for signs like weak airflow, strange noises, ice buildup, higher energy bills, or the system not switching between heating and cooling properly.