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Boilers & waterBoiler and water heater service in Chicago Heights
Many older homes and buildings across the South Suburbs are heated by boilers, and not every HVAC company will work on them. We do. Mountain Top installs and repairs boilers and water heaters for homes and commercial buildings.
Cold radiators, no hot water, banging in the pipes or a puddle near the unit all mean the system needs a look from someone who knows boilers. We find the problem, explain it and tell you whether repair or replacement makes more sense.
Why customers choose us for boiler and water heater work
Boiler work is less forgiving than furnace work. The piping, venting and controls all have to be right. When a boiler or water heater needs replacing, we handle the whole installation, from the equipment to the connections, so the new unit runs the way it is supposed to.

What our boiler and water heater service includes
- 01
Boiler installation
Residential and commercial boilers, installed properly.
- 02
Boiler repair
We find what is wrong and explain what it takes to fix it.
- 03
Water heater repair
A clear answer on repair versus replacement.
- 04
Water heater replacement
We remove the old unit and install the new one.
- 05
Commercial boilers
Boiler work for commercial buildings as well as homes.
- 06
Emergency service
No heat or no hot water is urgent. We offer a 1-hour emergency response, 24/7.
Things worth thinking about
Pay attention to early signs
New banging or gurgling, uneven radiators and damp spots near the unit are worth a call before they turn into a shutdown.
Think about age
If your boiler or tank is old and the repairs are adding up, ask us to compare repair against replacement.
If you smell gas, get out first
Leave the building, call your gas utility from outside and then call us.
Four steps from first call to finished job
Every job follows the same four steps, whether it is a furnace repair or a new boiler.
- 01
Call or text
Tell us what is going on, by phone or by text.
- 02
We find the cause
A licensed technician diagnoses the problem before recommending anything.
- 03
You get the full picture
What is wrong, what it takes to fix and what your options are. The decision is yours.
- 04
We do the work
Repair or installation by a licensed, bonded and insured crew.
Boilers & water heaters FAQ
Serving Chicago Heights and the South Suburbs. Not seeing your question? Call or text 708-407-6296.
Do you install boilers for commercial buildings?
Yes. We install boilers for both residential and commercial properties in Chicago Heights and the South Suburbs.
Do you repair boilers as well as install them?
Yes. We repair and service boilers, and we install new ones when replacement makes more sense than repair.
Do you replace water heaters?
Yes. We repair water heaters, which some people call hot water heaters, and replace them when they have reached the end of their life.
Do you replace boilers?
Yes. We install new boilers for homes and commercial buildings, including replacing an existing boiler. We will help you compare repair against replacement first.
Related services
Ready to get started?
Tell us what is going on with your boiler and water heater and we will take it from there.