Call (321) 478-0693 for emergency boiler repair in Pittsburgh: the line is answered 24 hours a day, every day, and we send the nearest available boiler technician to a dead, leaking or locked-out boiler.
If you smell gas or a carbon monoxide alarm is going off, stop reading. Leave the house and call 911 or your gas utility from outside first.
For everything else, below is what you can safely do while you wait and how to keep the pipes from freezing. Every HVAC technician we send is licensed where Pennsylvania requires it, and insured.
What counts as a boiler emergency
A boiler problem is an emergency when waiting until morning puts people, pipes or the building at risk. In a Pittsburgh January, with lows in the low 20s and the odd arctic night below zero, that happens fast.
- The boiler is not working and the house is losing heat in freezing weather.
- Someone at home is elderly, an infant, or medically vulnerable to cold.
- Water is pouring from the boiler, a pipe or a radiator, or the relief valve is discharging.
- A steam boiler has shut down on low water, or the sight glass is empty.
- Tenants in a multi-unit building are without heat.
Radiators cold in one room, a boiler that bangs but still heats, or a slow drip into a bucket can usually wait for daylight. If you are not sure, call and describe it, and we can help you decide.
What an emergency boiler call includes once the technician is there
A night call has one goal before any other: a boiler that is safe to leave running, or safely shut down. These are the pieces of that visit.
- A safety look before any repair: fuel odor at the boiler, a CO reading near the appliance and its flue connection, and signs of exhaust spilling at the draft hood.
- Water and power isolated where a leak, a flooding feeder or a discharging relief valve is putting water near wiring.
- The lockout code or blinking light read and recorded, so the cause is traced instead of the boiler simply being reset.
- A step-by-step check of the firing sequence: thermostat call, limits, low-water cutoff, ignition, flame proving and the circulator or steam pressure control.
- The safety controls proven after any repair: the low-water cutoff and pressure limit on steam, the high limit and relief valve on hot water.
- Tonight's options laid out separately: a full repair if the part is on hand, a safe temporary fix, or a safe shutdown until the supply houses open, each with its price.
- A freeze plan if the boiler cannot run, including whether a hot-water system should be partly drained to protect the radiators and piping.
- A plain list of what is still open: parts on order, a follow-up visit, and anything found tonight that should be fixed before next winter.
The emergency repair itself: from make-safe to heat back on
Dispatch gets a technician to the door. This is what happens in the basement after that, in the order the technician works.
- 1
Make the boiler and the basement safe
Before chasing the fault, the technician checks for fuel odor and carbon monoxide, shuts off water feeding a leak, and keeps power off anything wet. A steam boiler found hot and dry gets no water until it has cooled on its own.
- 2
Find the fault, not just the symptom
The boiler is walked through its firing sequence while the technician watches where it stops: no call from the thermostat, a tripped limit, low water, no spark, no flame signal, or a burner that fires while the circulator sits still.
- 3
Price tonight's choices
You hear what failed and what each option costs: a full repair now, a temporary fix that gets heat back until a weekday, or a safe shutdown with a freeze plan. The after-hours portion is stated plainly, and nothing proceeds until you choose.
- 4
Repair, or a temporary fix that stays safe
Common parts such as an ignitor, a flame sensor or a pigtail can often be replaced on the spot. A temporary fix might isolate a leaking radiator or zone so the rest of the house heats. It never means jumping out a safety control.
- 5
Run a full cycle and hand over
The boiler is fired and watched through a heating cycle, with its safety controls proven and the water line or pressure checked. Before leaving, the technician confirms heat at the far radiators and tells you what to watch for overnight.
Gas smell or a CO alarm: leave the house and call 911 or your gas utility first
Do this first, before calling us
If you smell gas (a rotten-egg or sulfur odor) or a carbon monoxide alarm is sounding, get everyone out of the house now, pets included. Do not touch light switches or appliances, do not use a phone inside, and do not look for the leak. Once you are outside and away from the house, call 911 or your gas utility. Do not go back in until they tell you it is safe.
This is not a boiler repair call, and we are not the first call for it. Responders and the gas utility bring detectors and the authority to shut off service. Call us once the house has been cleared, if they say the boiler needs repair before it runs again.
Carbon monoxide has no smell. Headaches, dizziness or nausea that ease outdoors are a warning sign even without an alarm. Keep working CO alarms on every floor and near the bedrooms.
Emergencies we handle: dead boilers, leaks, relief valves discharging, low-water lockouts, failed circulators
| Emergency | What is usually behind it |
|---|---|
| Boiler not firing, nothing happening | A tripped switch or breaker, a failed ignitor or flame sensor, a bad gas valve or board, or a safety lockout |
| Boiler leaking | A failed relief valve, a leaking circulator or fitting, a rotted return, or a cracked section |
| Relief valve discharging | Hot-water pressure climbing toward the valve's 30 psi rating, usually from a waterlogged expansion tank or a leaking-through fill valve |
| Low-water lockout on a steam boiler | A leak in the returns or boiler, a failed feeder, or a dirty low-water cutoff |
| Boiler hot, radiators cold | A failed circulator or zone valve, air-bound piping, or on steam, main vents that no longer let air out |
| Steam boiler flooding | An automatic water feeder stuck open |
The technician finds the cause, then explains the fix and its cost before picking up a tool. If a part cannot be had until the supply houses open, tonight's goal is a safe system and, where possible, heat. Background on each system is on our steam boiler repair and hot water boiler repair pages, and if the burner will not light, see what to check when a boiler is not firing.
What to do before the technician arrives: emergency switch, water feed, what not to touch
Safe steps while you wait
- Use the emergency switch, often a red switch plate at the top of the basement stairs or near the boiler. Turn it off if the boiler is leaking, discharging, flooding or making new noises.
- Close the water feed. On a hot-water boiler, close the fill valve on the cold-water line. On a steam boiler with a stuck feeder, close the feeder's supply valve.
- Shut the main water valve if a pipe or radiator has burst.
- Contain the water with a bucket under the relief valve pipe, and move valuables away.
- Note what you see: error codes, the gauge reading, the sight glass level, and the boiler's make and model.
What not to touch
Do not add water to a steam boiler that is hot and has run dry, because cold water on hot, empty cast iron can crack it. Shut the boiler off, let it cool, and wait for the technician. Do not cap, plug or tie down a relief valve. Do not keep pressing reset on a locked-out boiler, and do not open the burner compartment or jumper any control.
How 24/7 dispatch works: live answer, nearest technician, price before work
- A live answer, nights, weekends and holidays included. We ask what the boiler is doing, steam or hot water if you know, your address, and whether anyone is at risk from the cold.
- The nearest available technician who works on your type of system. We do not promise an arrival time: it depends on open calls, the weather, and traffic through the tunnels and over the bridges between the technician and your street.
- A price before work. On site, the technician diagnoses the boiler, explains the repair and tells you the price. Nothing is done until you approve it.
Same day boiler repair is often possible when you call early and the part is common, but it is never guaranteed. After hours boiler repair calls come from across our boiler service areas, from emergency boiler repair in Wilkinsburg apartment buildings to boiler repair in Dormont duplexes and 24 hour boiler service in Mt. Lebanon, reached from downtown through the Liberty Tunnel.
Protecting radiators and pipes from freezing while the boiler is down
A house holds its heat for a while, but pipes in outside walls, porches and crawlspaces can freeze within hours in single digits, and so can water-filled radiators. These steps buy time.
- Open cabinet doors under sinks on exterior walls so room heat reaches the pipes.
- Drip the faucets on exterior walls, hot and cold, at a thin trickle. Moving water is slower to freeze.
- Close off unused rooms without plumbing so the heat stays where people and pipes are.
- Never use the oven, a stovetop, a grill or a camp heater to heat the house. They can produce carbon monoxide or start a fire.
- Use space heaters only with clearance: three feet from curtains, bedding and furniture, plugged into a wall outlet, and never left unattended.
- Know where the main water shutoff is, usually where the line enters the basement wall, and check that it turns. A burst pipe makes it the first thing you need.
If the boiler will be down for days in a hard freeze, the technician may drain a hot-water system to protect it. Damaged radiators are covered on our radiator repair page.
Nights, weekends and holidays: how after-hours pricing works
An emergency visit can cost more at night, on a weekend or a holiday. We do not post prices, because the price comes from the technician doing the work and depends on the job. What shapes an after-hours bill:
- When you call. Late-night, weekend and holiday visits may carry a higher rate than a weekday daytime visit.
- What failed. Clearing a tripped control is quick. A circulator, a gas valve or a leak in a buried return is not.
- Parts. With supply houses closed, the technician may make a temporary repair tonight and finish during business hours.
- Access and distance: a boiler behind a finished wall, a crawlspace, or a long drive in snow.
- Demand. In a cold snap many calls arrive at once.
Either way, the technician gives you the price before work starts, and you decide. If a safe temporary fix restores heat tonight, the rest can wait for a weekday. For published local ranges, see what boiler repair costs in Pittsburgh.
Why Pittsburgh calls this line when the boiler quits at night
Triage starts while you are still on the phone
The person who answers sends a gas or CO call to 911 first. Then come the questions that set priority: a leak or no heat, steam or hot water, and whether an infant, an older relative or tenants are without heat.
Safe tonight, finished properly later
When a part cannot be had overnight, the technicians we send make the boiler safe and restore heat where it can be done without bypassing a control, then schedule the permanent repair rather than leaving a jumper wire in place.
The night rate named before the work
An after-hours visit can cost more, and you hear how much before any repair begins. That lets you weigh a temporary fix tonight against a full repair on a weekday, with both prices in front of you.
Freeze protection treated as part of the job
A boiler that cannot be restarted still leaves pipes and water-filled radiators at risk. The technician weighs the overnight low, outside-wall plumbing and the radiators before leaving, and may open the drains on a hot-water system if emptying it is safer.
Emergency Boiler Repair (24/7) across Pittsburgh and nearby boroughs
Night calls tend to come from wherever one old boiler carries a lot of people: small city apartment buildings on a single boiler, and older family houses in Beechview that still run on their original radiators. Across the Monongahela we take 24/7 boiler calls in Munhall and Homestead, and north of the Ohio, emergency boiler repair in Bellevue reaches into Avalon as well.
Emergency Boiler Repair (24/7): common questions
Are you really answering boiler calls 24 hours a day?
Yes. The line at (321) 478-0693 is answered 24 hours a day, seven days a week, including nights, weekends and holidays. How soon a technician reaches you depends on open calls, the weather, and traffic through the tunnels and over the bridges, so we do not quote an arrival time. We send the nearest available technician who works on your kind of boiler.
Should I add water to a steam boiler that has shut itself off?
No, not while it is hot. If the boiler shut down on low water and the sight glass is empty or nearly empty, adding cold water to hot cast iron can crack the boiler or flash into a violent burst of steam. Turn it off at the emergency switch, let it cool completely, then call. The technician has to find out why it lost water, whether a leak, a failed feeder or a dirty low-water cutoff, before it runs again.
Does emergency boiler repair cost more at night?
It can. Night, weekend and holiday calls may carry a higher rate than a weekday visit, and the total also depends on what failed, whether the part can be found after hours, and how hard the boiler is to reach. What we do promise is that the technician tells you the price before any work starts, and nothing is done until you approve it.
Can radiators freeze and crack if the boiler stays off?
Yes. Hot-water radiators and the pipes feeding them are full of water, and if the room drops below freezing, ice can split a cast iron section or a pipe. Steam radiators are mostly empty when cold, but water sitting in returns, traps and low spots in the piping can still freeze. Radiators on outside walls and over unheated spaces are most at risk, so keep the house above freezing with safe heat and call before the overnight low.
How long does an emergency boiler repair take?
Anywhere from under an hour to several hours once the technician is on site, depending on the fault. Clearing a lockout caused by a dirty flame sensor or a clogged pigtail is quick. Replacing a circulator, a gas valve or a relief valve means draining or isolating part of the system, then refilling and purging or bringing it back to steam. When the part is not available overnight, the visit ends with the boiler made safe, and heat restored where a safe temporary fix allows, with the rest finished on a weekday.
Can a boiler explode?
Yes, but it is rare in a home, because residential boilers carry layered safety controls built to prevent it. A hot-water boiler has a relief valve rated around 30 psi; a steam boiler has a pressuretrol, a low-water cutoff and its own safety valve. Danger comes when those controls are capped, jumped out or ignored, or when cold water is added to a hot, dry steam boiler. That is why a dripping relief valve should never be plugged. The more common emergency risk is carbon monoxide, so keep working CO alarms on every floor.
