Full Time Heating & Cooling · Watertown, MN
Boiler Maintenance, Diagnostics and Repair From Technicians Who Diagnose First
24/7 Emergency Service5.0 Rating · 200+ Google ReviewsMN Bonded #MB792165NATE-Certified Technicians
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Close-up of a boiler heat exchanger with surface buildup, inspected during a service call
What We Check During a Boiler Service Call
When we arrive for a boiler service, we're not doing a five-minute visual and calling it done. We check the heat exchanger for cracks or corrosion, test the pressure relief valve, inspect the circulator pump and zone valves, verify burner ignition and flame quality, and confirm that controls and thermostats are communicating correctly. If you have a condensing boiler, we also check the flue and condensate drain — those get overlooked more often than they should. The goal is to leave knowing exactly what state your system is in, not guessing.
Copper near-boiler piping and gas manifold in a Minnesota basement
Repair First. Replacement Only When It Makes Sense.
Boilers are built to last. A well-maintained cast iron boiler can run 25 to 30 years, and a lot of what goes wrong along the way is repairable: zone valves, circulator pumps, pressure vessels, ignition components, thermocouples. We'll always tell you if a repair is the right call. If we find a cracked heat exchanger or corrosion that's compromised the entire system, we'll tell you that too — plainly, without pressure. Our techs aren't on commission, so there's no financial incentive to push you toward a new boiler when yours can be fixed. We're also happy to link you to our HVAC maintenance program if you want to catch problems before they become emergencies.
Zone valves and zone control panel on a hydronic heating system
Why Annual Boiler Maintenance Matters
A yearly service appointment is the single best thing you can do for a boiler. It catches small issues, a weeping valve, a buildup of sludge, a zone valve that's starting to stick, while they're still cheap to fix, instead of letting them sit until a cold night turns them into an emergency. Annual service also keeps combustion running efficiently, which keeps your fuel bills in check, and it's usually required to keep a manufacturer's warranty in force. If your boiler hasn't had a tune-up in the last year, that's the place to start before anything else.
What to Expect When You Call Us for Boiler Work
Details below
Here's how a typical service or repair call goes with Full Time Heating & Cooling.
We give you a 2-hour arrival window
We diagnose before we quote
Owner reviews the work
Close-up of a boiler heat exchanger with surface buildup, inspected during a service call
Gas Fireplace and Broader Heating Services
Boilers aren't the only heating system we work on. If you've got a gas fireplace that needs attention before winter, our team handles gas fireplace repair and cleaning as well. And if you're comparing hydronic heat against a forced-air furnace repair or replacement, we can help you think through both — without pushing you toward the option that costs more. We also offer air filtration and dehumidifier services for homes that need help with air quality alongside their heating.
Real Boiler Repairs From Around the Service Area
Details below
A sample of actual boiler repair calls completed in the west metro, each one diagnosed and fixed instead of assumed.
Wayzata: Stuck Powerheads Caused an Upstairs to Overheat
Locked-Out Boiler Restored on a No-Heat Call
Zone valves and zone control panel on a hydronic heating system
Service Areas
We serve the Twin Cities west metro, including Minnetonka, Chaska, Victoria, Eden Prairie, Waverly, Shorewood, and surrounding communities. See the full areas we serve page for more detail.
What Homeowners Say About Our Boiler Service
5.0 · 200+ Google reviews
Read all reviews
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Boiler burner service
So helpful after maintenance service, a day later, the boiler burner pilot lights went out when a live bird came down flue into basement. Rechecked everything was working right and helped get the bird back outside. Did not charge for the service call.
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Burnham boiler and thermostat · Watertown
Had a thermostat/boiler mis connection and within calling the guys to them arriving at my house was 15 min. They came in with GREAT attitude and diagnosed the issue and fixed it super fast, also they took the time to explain what the issue was and showed me some preventative maintenance I can do on my own. Will be calling every time for my heating and cooling needs
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Boiler repair · Watertown
Jason was very friendly and helpful in repairing my heating system. He went out of his way to make sure everything was working the way it should. Highly recommend!
Ready to Get Your Boiler Diagnosed, Serviced or Repaired?
Whether your boiler stopped heating, is making noise it shouldn't, or it's overdue for its annual service, call us and get a straight answer. No pressure, no commission-based upsells -- just an honest look at what your system needs.
Or send us your info
FAQ Common questions
Frequently Asked Questions
Answers below
What is a boiler service? +
A boiler service is a full inspection and performance check of your hydronic heating system. A technician examines the heat exchanger, burner assembly, circulator pump, zone valves, pressure relief valve, and all controls. They check for leaks, test combustion efficiency, verify that the system is heating to set temperatures, and flag any components that are failing or close to it. It's the same concept as a furnace tune-up — catch small problems before they become cold-night emergencies.
What is the average cost to clean a boiler? +
A standard boiler cleaning and service call in the Twin Cities metro typically runs $100 to $250 depending on the boiler type, age, and how long it's been since the last service. Cast iron boilers with older burner assemblies may take longer to clean thoroughly. If the technician finds parts that need replacing during the service — an expansion tank, pressure relief valve, or circulator — that's quoted separately before any additional work is done. Every job is different — contact Full Time Heating & Cooling for an accurate estimate.
Do plumbers handle boilers? +
Some plumbers do work on the water-side components of boiler systems -- the piping, zone valves, and supply lines. HVAC contractors handle the combustion equipment: the burner, heat exchanger, controls, and gas supply. For a complete boiler service, you want someone licensed for both the mechanical and gas work. Full Time Heating & Cooling handles the full scope -- diagnosis, maintenance, and repair -- and we're fully insured on every job.
How often do boilers need to be serviced? +
Once a year is the standard recommendation for a gas boiler, ideally in early fall before heating season. Annual service keeps combustion efficiency where it should be, catches worn components before they fail mid-winter, and maintains most manufacturer warranties. Boilers that go multiple years without service tend to accumulate sludge in the system and develop pressure issues that a single service call can't always fully reverse. Consistent annual maintenance is a lot cheaper than an emergency replacement.
How do I know if my boiler needs repair or full replacement? +
The honest answer is: you need a technician to look at it. Age matters — a boiler over 20 years old with a cracked heat exchanger is usually not worth repairing. But a 12-year-old boiler with a failed circulator pump or a bad zone valve is almost always worth fixing. We diagnose first and give you a clear recommendation either way. Our technicians aren't on commission, so they have no incentive to recommend replacement when repair makes more sense.
Our promise
If we can repair it, we will.
No unnecessary replacements.We fix what's actually wrong and explain your options.
Keep Reading
Updated October 2026
More Services
- Air ExchangerAir exchanger repair, cleaning, and installation from fully insured HVAC techs. No commission pressure. Call Full Time Heating & Cooling anytime.
- Air FiltrationDirty filter or stale indoor air? Full Time diagnoses your filtration setup and recommends only what your home actually needs. Fully insured. Call anytime.
- Air PurificationWhole-home air purification installed by Full Time Heating & Cooling. UV-C lights, media filters, and iWave-R systems that actually clean the air your family breathes. Call (952) 847-3387.
- Commercial InstallationCommercial HVAC installation for small businesses and facilities in the Twin Cities West Metro. Honest diagnostics, no commission techs. Call (952) 847-3387.
- Commercial MaintenanceCommercial heating and air conditioning repair, maintenance, and installation for MN businesses. Repair-first approach. 24/7 emergency service. Call (952) 847-3387.
- Commercial RepairCommercial HVAC repair for small businesses across the West Metro. Honest diagnostics, repair-first approach, fully insured. Call (952) 847-3387 anytime.