Boiler Repair in the Northwest & West Suburbs
Pure Comfort repairs hot-water boilers in Streamwood, Elgin, Palatine and the Northwest Suburbs, including circulators, zone valves, expansion tanks, ignition and controls. The diagnostic is $75 ($99 evenings, weekends and holidays), and we test the whole hydronic system before quoting an upfront repair price. We service hot-water boilers only, not steam systems.
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Boiler Not Heating?
Fast, honest boiler repair from a family-owned Streamwood team.
- $75 diagnostic ($99 evenings, weekends & holidays)
- 24/7 emergency service, with same-day appointments available
- Trucks stocked with common boiler parts, so most repairs are done in one visit
- Upfront, flat-rate pricing before any work starts
Time for a New Boiler?
Free in-home replacement estimates from a Lennox Premier Dealer.
- Good, Better and Best options with upfront pricing
- Nicor Gas rebates applied where you qualify
- Financing available, including 0% APR on select Lennox systems during Lennox promotions
- Sized with a load calculation, installed and permitted
Quick Summary
Pure Comfort repairs hot-water boilers in Streamwood and the Northwest Suburbs, including circulators, zone valves, expansion tanks, ignition and controls. The diagnostic is $75 ($99 evenings, weekends and holidays), most boiler repairs cost $150 to $1,200, and you approve a flat-rate price before work starts. We service hot-water boilers only, not steam. Call (708) 515-4822, 24/7.
Reviewed by Gene Baldassano, owner and NATE- and EPA 608-certified HVAC technician since 2008 · Updated
What Are the Signs Your Boiler Needs Repair?
The most common signs a boiler needs repair are cold radiators, no heat, leaks, pressure problems and banging or gurgling noises. These are the signs worth acting on.
- No heat in some zonesOne area stays cold while others heat normally, which often points to a zone valve, pump or control rather than the boiler.
- The boiler will not fireThe thermostat calls for heat and nothing happens, or the boiler locks out shortly after starting.
- Gurgling or banging pipesAir trapped in the system or poor circulation can produce noise long before it produces a breakdown.
- Pressure keeps changingA gauge that climbs or drops between visits usually means the expansion tank or fill valve needs attention.
- Radiators heat unevenlySome emitters stay lukewarm while others run hot, which points at circulation or balancing rather than capacity.
- Visible leaks or corrosionDamp patches, staining or corrosion around the boiler and piping should be inspected rather than watched.
A gas odor, smoke or an active carbon monoxide alarm requires immediate safety action. For other heating problems, schedule service before continued operation causes further damage.
How Do We Diagnose Boiler Problems?
We look at the boiler and the distribution system together, because they cause similar symptoms.
- Follow the heat. We trace how heat should move through the system from the thermostat call to the emitters, and find where it stops.
- Test the components. Controls, ignition, burners, pumps, zone valves, expansion tank and venting all get tested rather than assumed.
- Read the system. Pressure and temperature readings separate a circulation problem from a control problem from a boiler problem.
- Explain the cause. Air, poor circulation and control faults produce similar symptoms, so we explain which one it actually is before quoting parts.
Should You Repair or Replace Your Boiler?
We evaluate condition, service history, warranty, comfort and the scope of the repair instead of relying on age alone.
An isolated failure on a sound system
A boiler remains a good repair candidate when the failure is isolated and the heat exchanger, venting and distribution system are in sound condition.
Repeated repairs or wider problems
Replacement deserves consideration when major repairs repeat, efficiency has declined, or broader piping and control problems need correcting anyway.
The Four Things We Weigh
Heat exchanger and venting
The condition of the parts that cannot be swapped cheaply is what decides whether a repair is worth making.
How often it has needed us
One failure is a repair. A third call in two winters is a different conversation.
Coverage still in force
Parts or labor coverage can change the arithmetic considerably, so we check before quoting.
What else needs correcting
If piping or controls need work regardless, doing it alongside a replacement often costs less overall.
Practical Hydronic Heating Experience
Gene’s early trade experience included boilers and water heaters, and Pure Comfort has served hydronic systems since 2008.
- Hydronic from the startBoilers were part of the work from Gene's first years in the trade, not an afterthought added later.
- The whole systemCirculation, zoning, venting and controls get considered alongside the boiler cabinet itself.
- In-house techniciansThe technician who arrives works for Pure Comfort. We do not subcontract hydronic work.
- Cause before partsA new component cannot correct poor water flow or a control fault elsewhere, so we find the cause first.
Boiler Components and Connected Controls
We diagnose burners, ignition, pumps, zone valves, expansion tanks, relief components, thermostats, controls and venting on supported boiler systems.
Service availability may depend on the equipment and the parts still available for it. We will tell you plainly if a system is no longer supportable.
Components We Service
Diagnosis determines which of these is actually at fault.
- Burners and ignition systems
- Circulator pumps and zone valves
- Expansion tanks and relief components
- Thermostats and system controls
- Venting and combustion air
- System pressure and circulation
How Much Does Boiler Repair Cost?
Boiler repair starts with a $75 diagnostic ($99 evenings, weekends and holidays), and you approve a flat-rate price before any work starts. After diagnosing the system we explain the recommended work before moving forward. If repair no longer offers good long-term value, we can also provide a free in-home replacement estimate.
Financing may be available for qualifying replacement projects. Promotional terms, rebates and equipment incentives change, so current offers are confirmed during the estimate.
Financing
Projects Over $2,000
Longer terms with interest for lower monthly payments, subject to credit approval. If replacement makes more sense, select Lennox systems qualify for 0% APR during Lennox promotions.
Free
Replacement Estimates
If replacement makes more sense, the in-home estimate is free, in writing and with no obligation.
Hydronic Experience in Older Local Homes
Boilers are more common in the older housing stock across Streamwood and the surrounding suburbs, often alongside piping and controls that have been modified more than once over the years.
That history matters. Recognising an older modification as the cause of a symptom saves replacing a perfectly good component.
Real Reviews. Real Comfort.
When you need HVAC due to an unexpected event you want someone who not only can provide the service you need….
Great service. Very professional. They try all avenues to resolve issues with equipment. Always a pleasure to work….
Had an issue with the thermostat reading erroneously, as soon as I contacted Pure Comfort, they got back….
Our serviceman, Gene, was very responsive, professional and thorough. He explained each aspect of the issue clearly and….
I called them at 7am with no heat, the only available spot they had was in the afternoon, 5 minutes later they called….
Gene was professional, on-time, very friendly and did a thorough job inspecting our A/C unit. He also checked….
Quick and honest service and advice last minute on a Sunday. Clean crew and equipment. Gene was a knowledgeable….
Gene did not give up on the problem. It was a crazy situation but he never gave up found the problem and fixed it. Thank you….
Furnace wasnt working. Called Pure Comfort after hours and they came right out and helped me. The furnace….
Very professional, definitely knowledgeable had the furnace fixed in 10 minutes. I can honestly say I trusted Gene….
Boiler Repair FAQs
Why are some radiators or zones cold?
Air, circulation, zone controls, valves, pumps or system pressure may be involved.
Why is the boiler making banging sounds?
Air, mineral buildup, circulation problems or rapid temperature changes can create noise. The cause should be checked.
Is water near the boiler normal?
No. The source may be a fitting, pump, relief valve, expansion tank or boiler component.
Why does boiler pressure change?
Temperature, fill components, the expansion tank and leaks can affect pressure.
Do you work on boilers you did not install?
Pure Comfort services supported boiler systems, subject to equipment and parts availability.
When is replacement more practical?
Cast-iron boilers can last 30 years or more, so age alone isn’t a reason to replace one. Replace it when the heat exchanger leaks, when parts are no longer made, or when repair bills keep coming. A modern high-efficiency boiler (95% AFUE or higher) can cut gas use noticeably compared with an older boiler running at 70 to 80%. Pure Comfort services and installs hot-water (hydronic) boilers only; we don’t work on steam systems.
How much does boiler repair cost?
Most boiler repairs we do cost $150 to $1,200. A basic pilot cleaning is at the low end. Expansion tanks, zone valves, pressure-reducing valves and pressure relief valves fall in the middle. Thermocouples, relays and circulator pump replacements are usually at the higher end, especially if there are no isolation valves or the whole system has to be bled. You get the exact price before any work starts.
Boiler Repair Across the Northwest Suburbs
Based in Streamwood and working throughout the surrounding communities. Pick your town to see local details, or call and we will confirm your address in a minute.
Not on the list? We cover much of the northwest suburbs, so call and we will confirm your address in a minute.
Restore Dependable Hydronic Heat
Tell us what the system is doing, which zones are affected and whether anything has changed recently. We will look at the equipment, circulation and controls together.
- You get a scheduled window and the technician's name
- We diagnose the distribution system, not just the boiler
- Replacement estimates are free, with no obligation
No heat right now? Call us at (708) 515-4822. We answer the phone directly and can tell you what we can do and when.
Request Service or a Free Replacement Estimate
Pure Comfort Service at a Glance
| Item | Typical price or answer | Details |
|---|---|---|
| Diagnostic visit | $75 ($99 evenings, weekends and holidays) | Full-system check by a NATE-certified technician |
| Furnace repair | Most repairs $245 to $770 | Flat-rate price approved before work starts |
| AC repair | Most repairs $275 to $735 | Flat-rate price approved before work starts |
| Availability | Phones answered 24/7 | Same-day service is common |
| Service area | About 20 miles around Streamwood | Cook, Kane, DuPage and McHenry counties |
| Credentials | Lennox Premier Dealer | NATE-certified technicians, EPA 608, BBB Accredited, licensed Illinois LLC |
| Financing | 0% APR on select Lennox systems | During Lennox promotions; longer terms with interest on projects over $2,000 |
Pricing as of October 2026. Final price is quoted in writing before any work starts.
Licensed, certified and accredited
- Lennox Premier Dealer
- NATE-certified technicians
- EPA Section 608 certified
- BBB Accredited Business
- Licensed business in the Village of Streamwood
- Registered Illinois LLC
- Fully insured