Radiators Not Heating

A few dead radiators on an otherwise working boiler usually points to something local and fixable, so call and name the rooms that stay cold.

Tap to CallNumber arriving soon

When this becomes an emergency

A room or two stays cold while the rest of the house warms normally.
A radiator hammers or hisses right after the boiler fires.
The upper half of a radiator is cold while the lower half is hot.
A hand valve turns freely but changes nothing in the room.

What a pro does

One cold radiator seldom indicts the boiler. Air trapped at the top of an emitter blocks circulation, a hand valve or zone valve can seize part way, and in older ranch houses with add-on loops the balance was never right to begin with, so a technician works the affected loop rather than the appliance. A radiator hot at the bottom and cold on top is carrying air and wants bleeding, which is a different job from chasing a pump. Hammering usually indicts the piping's pitch, not the radiator standing in the room.

Frequently asked questions

Is it strange that only one room is cold?

Not at all, and it is actually reassuring. A boiler problem tends to take the whole house down together, while a single cold room points somewhere local.

What causes the banging sound in the pipes?

Water sitting where it should be draining gets shoved by incoming steam or a sudden flow change, and the pipe slams against its supports.

Do added-on rooms cause trouble on old systems?

Often. A loop extended to a later addition can starve the far end unless the system was rebalanced, and nobody ever went back to do it.

Are old cast iron radiators worth keeping?

Usually yes. They hold heat well in a drafty house, and most of them keep working for decades once the actual fault in the loop is found.

Radiators Not Heating?

Get connected with a local pro now.

Tap to CallNumber arriving soon

Keep going

Heating in Wyoming Boiler Leaking Water Emergency Heating Repair Furnace Blowing Cold Air Furnace Making Loud Noise Furnace Short Cycling Heat Pump Frozen Outside No Heat Pilot Light Keeps Going Out Thermostat Not Working

disclaimer: 307 Heating is a free service to assist homeowners in connecting with local service providers. All contractors/providers are independent and 307 Heating does not warrant or guarantee any work performed. It is the responsibility of the homeowner to verify that the hired contractor furnishes the necessary license and insurance required for the work being performed. All persons depicted in a photo or video are actors or models and not contractors listed on 307 Heating.

Same-day and 24/7 emergency services are subject to provider participation, location, technician availability, and demand. Availability is not guaranteed and may vary by market and appointment capacity.

We use cookies and session-based analytics, including session replays (with form inputs masked), to improve this site. See our Privacy Policy.

About · Contact · Privacy · Terms · Disclosure · Sitemap