Boiler Repair

Boiler Trouble? We Find the Cause First.

A hot water boiler with no heat, a leak, a strange noise, or one that keeps shutting off needs a calm, careful look. We find the real cause and explain it to you before we fix anything.

HVAC Repair Equipment Installation Clear Written Scope
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What Boiler Repair Covers

When the heat goes out, it is easy to feel stuck, and guessing only makes it worse. A boiler that will not heat, leaks, makes noise, or keeps shutting off is often a safety switch doing its job because something is not right. The symptom is a starting point, not the answer. We take a calm, diagnosis-first approach so you know what is really going on.

A scope note, plainly: we repair and service hot water boilers, the kind that send hot water to radiators, baseboard, or radiant floor heat. We do not work on steam boilers. We find the confirmed cause, explain it in plain language, and tell you the repair options before any work begins.

What This Covers

  • Finding the real reason a hot water boiler has no heat, rather than guessing from the symptom
  • Tracing a leak to its true source, which is often not where you first see the water
  • Looking into banging, knocking or gurgling noises and what is actually causing them
  • Finding why a boiler keeps shutting off, such as low water pressure, air in the system, or a sensor
  • Checking the pump, the piping connections, and the safety switches that keep the system running
  • Checking the thermostat and its wiring when the boiler seems dead
  • Explaining the confirmed cause and the repair options in plain language before any work begins
  • Telling you right away, plainly, if we find anything that should be looked at for safety

Signs Your Boiler Needs Attention

  • The house is cold and the boiler will not make heat
  • Water is dripping or pooling around the boiler
  • Banging, knocking or gurgling sounds coming from the boiler or the pipes
  • The boiler keeps shutting off and will not stay running
  • Some rooms stay cold while others heat up as they always did
  • The heat comes and goes and the house never feels settled
  • Gas odor: leave the home without operating switches and call the gas utility or 911 from outside

How We Work a No Heat Call

Safety comes before diagnosis

If you smell gas, leave the home and call the gas utility or 911 from outside. If anything we find raises a safety concern, we tell you plainly and right away, before anything else.

We find the cause, not just the symptom

A leak, a noise, or a boiler that keeps shutting off is a clue. The spot where you see water is not always where the leak starts. We trace the trouble to its real source instead of treating the surface.

We explain it in plain language

You hear what is wrong and why, in plain words, before we touch anything. The why usually matters most. A boiler that shut off because of low water pressure will do it again if nobody mentions the pressure.

We repair, then we watch it run

After the repair you approve, we check that the boiler runs steady and the heat comes back even, as safe conditions permit. We explain any remaining concern or anything to keep an eye on.

Frequently Asked Questions

You can check that the thermostat is set to heat and the temperature is above the room, that the boiler has power, and that nobody switched it off. If it still will not heat, leave the rest to us. We find the cause before touching anything.
A leak can come from a worn seal, a pressure relief valve doing its job, a fitting, or the boiler itself. The spot where you see water is not always where the leak starts. We trace it to the real source and explain what we find before any repair.
Noise can come from trapped air, water movement, or a part working harder than it should. The sound is a clue, not the whole story. We look at what is actually happening rather than guess from the noise alone.
A small drip is usually not an emergency, but water near electrical parts, steady leaking, or rising pressure should be looked at soon. If you ever smell gas, leave the home and call the gas utility or 911 from outside. When in doubt, call us and we will talk it through.
A boiler that keeps shutting off is often a safety switch doing its job because something is not right. Low water pressure, a sensor, air in the system, or another fault can all cause it. We find the real reason instead of resetting it over and over.
Resetting it again and again can hide the real problem and let it keep running when it should not. If it has shut off more than once, leave it and call us so we can find the cause.
No. We service hot water boilers, the kind that circulate hot water to radiators, baseboard or radiant floor heat. We do not repair or service steam boilers.
We serve homeowners in Germantown, Gaithersburg and Montgomery Village. Call or text with the full service address and the work you need so we can confirm the request.
It comes down to three things: how old the system is, what the repair costs against the value of the whole unit, and how well it has been keeping up. Once a system is past its teens and the repairs start stacking, replacement usually makes more sense. We look at yours and tell you straight which way we would go if it were our own home, with no pressure either way. Call or text 301-355-2238 and we will walk through it.
A quick professional check once a year, heating before winter and cooling before summer, catches the small things before they turn into a cold night with no heat. Change a standard filter every one to three months, sooner if you have pets. It is the cheapest thing you can do to make a system last.

Boiler Repair Across Germantown, Gaithersburg and Montgomery Village

We serve homeowners in Germantown, Gaithersburg and Montgomery Village.

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Tell Us
What You Need.

Tell us what your heating or cooling system is doing. Include the service address and any useful photos taken from a safe distance.

1
Tell us what is happeningDescribe the problem and when it started. Photos of safely accessible equipment can help.
2
We review the detailsWe follow up to understand the equipment and discuss the next step.
3
Review the proposed workYou receive a written scope before work begins. A request alone does not confirm an appointment.
RepairFind the problem
ReplaceCompare the options
MaintainCare for your system
Ask questions before deciding. We explain the findings and proposed work in plain language.

Or just give us a call.

301-355-2238

Call or text about your HVAC needs

Clear answers. Clear scope.

Know what you are approving.

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Customer Feedback

Verified Google reviews, 5.0 from 44

EL
Eli
September 2026

"I am generally cautious when hiring service technicians, as I prefer to handle equipment maintenance myself whenever possible. However, the team sent by Mora Heating & Air completely earned my trust. When my AC compressor failed during a recent heat wave, two other supposedly reputable companies immediately pressured us to buy an entirely new system. In contrast, the technicians from Mora Heating & Air did not attempt to upsell us. Instead, they provided a practical, targeted solution: replacing only the compressor and the crankcase heater. Choosing this route saved us a significant amount of money. I highly appreciate their honesty and professionalism, and I will certainly continue using their services in the future."

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WT
Wesley Thompson
August 2026

"Jay and Jacob were amazing getting my HVAC system operating correctly. Other companies probably would've said I need a new system but they took the time to diagnose the issues, addresses them, and went above and beyond getting the system in tip-top shape. They easily put 40 hours into the project to get it in order working well into the evenings and nights to ensure the home is comfortable. They will be my go-to for home services moving forward."

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EC
elizabeth contreras
August 2026

"Really happy with the work. They showed up on time, did a great job, and were easy to work with. I'd definitely recommend them for HVAC or home improvement work!"

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