Problem Guide
24/7 Emergency Availability

No Heat? Get Your Heating System Diagnosed

A loss of heat can come from the furnace, boiler, heat pump, controls, fuel supply, electrical components or circulation system. Tandem Mechanical can identify the failure and explain the repair options.

What This Problem Can Mean

When a home or commercial property loses heat, the first priority is safety and preventing further damage. Tandem Mechanical evaluates the heating equipment, controls and related system components so the actual cause can be identified before repairs are approved.

Warning Signs

Thermostat calls for heat but the system does not start
Furnace or boiler starts and shuts down repeatedly
Heat pump runs but does not warm the building
Radiators or baseboards stay cold
Unusual noises, odors or error codes
Indoor temperature continues dropping

Possible Causes

Thermostat or control failure
Ignition, flame-sensing or burner problem
Circulator, zone valve or hydronic control issue
Electrical, breaker or disconnect problem
Heat-pump refrigeration or defrost issue
Fuel or gas-supply problem requiring proper diagnosis

What To Do Now

Confirm the thermostat is set to heat and the temperature is above room temperature
Check for an obvious tripped breaker without repeatedly resetting it
Keep vulnerable plumbing areas warm if temperatures are near freezing
Call for service if the system will not restore normal heat

What Not To Do

Do not bypass safety controls
Do not repeatedly reset a failed burner or furnace
Do not use an oven or unvented appliance to heat the building
Do not open sealed refrigerant or gas components

How Tandem Mechanical Can Help

A technician can inspect the heating system, identify the failed component or condition, review repair or replacement options, complete approved work and test the system before leaving.

Residential Properties

No-heat calls can affect single-family homes, apartments, condominiums, rentals and multi-family buildings using boilers, furnaces, heat pumps or ductless systems.

Commercial Properties

Commercial no-heat service can support offices, retail, restaurants, apartment buildings, facilities and other occupied properties where loss of heat affects operations or building protection.

No Heat FAQs

Real Customer Reviews

What Tandem Customers Are Saying

Angi

“Just in time. Affordable and reliable company!!! Thank you Josh.”

Vladimir G.

Shrewsbury · Water Heater - Install or Replace

Angi

“Responsive, flexible and nice clean work. Listens to needs and provides professional service.”

Doug L.

Palmer · Tankless Water Heater - Install

Angi

“Joshua, the owner, explained the best options for my plumbing needs, and gave me the estimate when he said he would. The repairs were completed on time & the estimate was the actual bill. We now have a working ice maker and no more floods in our basement!”

Randy S.

Google

“Sam from Tandem Plumbing responded promptly to fix an issue with my toilet, and the entire job was handled with great professionalism. He has a reassuring and approachable manner that made the experience stress-free. I was also pleasantly surprised by how fair and reasonable the pricing was. I only wish I’d called sooner!!!”

Amy Lynn

Westfield · Plumbing

Angi

“Prompt, professional, quality work. Highly recommended”

TJ S.

Angi

“Excellent job friendly workers. Very well done. Everything was cleaned up. Would highly recommend them.”

Mary C.

Need Help With No Heat?

Call Tandem Mechanical or book service online. Availability varies by service area, technician capacity and urgency.

Call 413-667-4998