Skip to main content

Free Second Opinion

Call (206) 243-7700
CallBook Now
Heating

Heating Inspection & Testing in Des Moines, WA

Ensure your Des Moines heating system runs safely and efficiently with expert inspection and testing. Prevent high bills and breakdowns.

Is Your Des Moines Heating System Quietly Costing You More?

Are your heating bills climbing in your Des Moines home, even though the thermostat setting hasn't changed? Do you notice a subtle, persistent chill in certain rooms, or maybe a strange, musty odor when your furnace kicks on, suggesting more than just a dusty filter? These aren't just minor annoyances; they're often the earliest warning signs that your heating system is struggling, potentially wasting energy and posing safety risks. Glendale Heating And Air Conditioning is here to provide thorough heating inspection and testing services in Des Moines, ensuring your system runs safely and efficiently.

Your Des Moines Home Might Be Telling You It Needs a Heating Inspection

Sometimes a heating system doesn't fail all at once. It sends out subtle signals that something is wrong, and paying attention to them can save you from a major breakdown.

Rising Energy Bills

You're seeing your monthly heating costs steadily increase, even if you haven't adjusted your thermostat or changed your heating habits. This is especially frustrating in Des Moines where winters aren't typically harsh, yet your furnace seems to be working overtime. This means your system is burning more fuel or using more electricity to produce the same amount of heat due to dirty components or failing parts.

Beyond the financial drain, consistently high bills indicate underlying issues that can lead to premature system failure. An inspection can pinpoint the source of this inefficiency before it becomes a much larger and more expensive repair.

Uneven Heating & Cold Spots

Some rooms in your home feel comfortably warm, while others remain noticeably chilly, no matter how high you set the thermostat. You might find yourself bundling up in one area of the house while another feels perfectly fine. This often points to issues with your ductwork, a struggling blower motor, or imbalances within the heating system itself.

Uneven heating means your system is working harder than it needs to, wasting energy and putting unnecessary strain on its components. It's a clear sign that the warm air isn't being distributed properly throughout your home.

Strange Smells or Noises

When your heating system turns on, you might detect unusual odors—anything from a dusty, burning smell to a musty, damp scent common in our climate. You might also hear new sounds like grinding, squealing, rattling, or frequent clicking.

Burning smells can indicate overheating components, while musty smells often signal mold or mildew in the ductwork. Grinding or squealing usually points to failing motor bearings, and these sounds are critical indicators of mechanical failure or even potential safety hazards that should never be ignored.

Frequent Cycling or Constant Running

Your furnace or heat pump seems to turn on and off much more frequently than usual, a problem known as short cycling. Conversely, it might run almost continuously without ever reaching your desired temperature.

Short cycling can be caused by a clogged filter or a faulty thermostat, while constant running suggests a more significant lack of heating capacity. Both scenarios put excessive wear and tear on your system, leading to premature breakdown and higher energy bills.

Yellow Pilot Light or Carbon Monoxide Detector Alarms

If your furnace has a pilot light, you observe that it's yellow or orange instead of a steady blue. Even more critically, your carbon monoxide detector sounds an alarm.

A yellow pilot light is a clear sign of incomplete combustion, which produces deadly carbon monoxide gas. This is an immediate and severe safety hazard that requires professional attention without delay.

What's Really Going On With Your Des Moines Heating System?

Several common issues could be causing the problems you're experiencing. Our job during an inspection is to accurately diagnose the root cause, not just treat the symptoms.

Accumulated Dirt & Debris

Over time, dust, pet dander, and other airborne particles build up on critical heating system components like filters, blowers, and burners. This buildup restricts airflow and forces the system to work harder, reducing its efficiency. The persistent dampness in the Pacific Northwest can make this dust stickier and harder to dislodge.

A professional cleaning, filter replacement, and inspection of all internal components is the solution. This simple step removes the buildup and ensures your system can breathe properly again.

Component Wear and Tear

Motors, bearings, igniters, and other moving parts within your heating system naturally degrade over years of operation. This wear can lead to reduced efficiency, strange noises, and eventual failure. Many older homes in Des Moines have heating systems that have simply reached the end of their expected lifespan.

Our technicians identify and replace worn or failing components to restore system performance and prevent further damage. This often includes checking belts, motors, and electrical connections to ensure everything is working in sync.

Ductwork Issues

Leaks, disconnections, or blockages in your home's ductwork allow heated air to escape into unconditioned spaces like attics or crawl spaces. This means you're paying to heat areas you don't even use. The older housing stock in Des Moines often comes with original ductwork that can become brittle, separated, or damaged over decades.

A thorough inspection of the duct system for leaks, blockages, and proper insulation is key. We can then perform sealing, repair, or cleaning as needed to ensure heated air gets where it's supposed to go.

Electrical or Ignition Problems

Faulty wiring, a malfunctioning thermostat, or issues with the igniter or pilot light can prevent your heating system from starting reliably. These problems can be intermittent at first but almost always get worse over time. Power fluctuations during winter storms in the Des Moines area can also stress older electrical components.

The solution involves diagnostic testing of electrical circuits, thermostat calibration, and inspection or repair of ignition components. This ensures safe, consistent, and reliable operation every time your system kicks on.

Corrosion from Damp Des Moines Air

The high humidity and salt spray from the Puget Sound can lead to rust and corrosion on metal components. This is especially true for exhaust vents, heat exchangers, and the outdoor units of heat pumps. This type of environmental wear is a specific challenge for coastal communities like Des Moines.

A corroded heat exchanger is particularly dangerous as it can lead to carbon monoxide leaks. Our inspection includes a careful check of all metal components for signs of corrosion, addressing any issues to ensure both safety and efficiency.

What to Expect During the Service Visit

When you schedule a heating inspection and testing service with Glendale Heating And Air Conditioning for your Des Moines home, you can expect a comprehensive and transparent process. Our licensed and experienced technicians will arrive promptly and begin by listening to your concerns and any specific issues you've noticed. We believe in understanding the problem from your perspective first.

Our inspection involves a meticulous check of all critical components. This includes the furnace or heat pump's electrical connections, fuel lines, ignition system, blower motor, and all safety controls. We pay special attention to the heat exchanger, a critical safety component, looking for any cracks or damage. We'll also assess the condition of your filters, test your thermostat's operation, and evaluate the integrity of your ductwork.

Using specialized tools, we'll test for proper airflow, combustion efficiency, and crucially, detect any potential carbon monoxide leaks. As a Lennox Premier Dealer, our technicians are trained on the latest diagnostic techniques for a wide range of heating systems. After our assessment, we'll explain our findings in clear, understandable language and provide an honest, upfront price for any recommended repairs before any work begins.

Related Services to Consider

Maintaining your heating system is key, and sometimes an inspection reveals that a deeper service is needed. You might consider pairing your heating inspection with a comprehensive heating maintenance and tune-up to not only identify issues but also proactively clean and optimize your system. If our inspection uncovers concerns about air quality, especially common in older Des Moines homes, exploring our indoor air quality services could be beneficial to address dust, allergens, or humidity issues.

Why This Matters / Cost of Waiting

Ignoring the warning signs from your heating system or delaying a professional inspection can lead to serious consequences. At best, you'll face steadily increasing energy bills as your inefficient system struggles to keep up, eroding your household budget month after month.

At worst, unaddressed issues like a cracked heat exchanger can lead to dangerous carbon monoxide leaks, posing a severe health risk to everyone in your home. Waiting for a complete breakdown almost always results in more expensive and urgent repairs, often during the coldest times of the year. A timely inspection is an investment in your comfort, safety, and the long-term health of your heating system.

Schedule Your Des Moines Heating Inspection Today

Don't let a struggling heating system compromise your comfort or safety. With Glendale Heating And Air Conditioning's legacy of trusted service since 1938, you can rely on our expertise to keep your home warm and your heating system running efficiently. Schedule your heating inspection and testing today and experience the peace of mind that comes with knowing your system is in expert hands.

Local HVAC context: Des Moines

Utility & rebates

Puget Sound Energy territory: qualifying heat pump conversions earn PSE rebates — $1,500–$2,400 off electric heat, $3,000–$4,000 off gas, $1,500/$2,400 hybrid — plus the $75/$175 smart thermostat rebate. From April 2026 installs must be by a PSE-network professional.

Rebate finder Heat pump vs furnace decision How heat pumps work here

The housing stock here

Marina-district mid-centuries, post-war ramblers, and newer townhomes near Pacific Ridge. Salt air near the waterfront is worth factoring into outdoor-unit placement and coil maintenance — something we spec for on installs here.

Deep dives: Mid-century rambler · Townhome/condo

All Seattle home styles Learning Center Decision guides

Permits

Permits run through the City of Des Moines. Permits are part of every legitimate bid — Seattle-area mechanical permits commonly add $150–$450 to a replacement.

Glendale & Des Moines

Our own address is Des Moines Memorial Drive — this corridor has been ours since 1938.

Questions Des Moines homeowners ask us

Is a heat pump a good choice in Seattle?

Absolutely. Washington's mild winters are ideal for heat pumps — they heat efficiently nearly all year and cool your home in summer too. Ask us about current utility rebates that may apply to your home; it's one of the smartest upgrades a PNW homeowner can make.

How do I know if I should repair or replace my furnace?

It depends on age, repair cost, and efficiency. As a rule of thumb, if your system is over 12–15 years old and facing a major repair, replacement often saves money long-term. Our technician will give you the honest options so you can decide.

What brands do you install and service?

As an authorized Lennox dealer we specialize in high-efficiency Lennox systems, and our technicians service all major HVAC brands. We carry common parts on the truck so most repairs are handled in a single visit.

What areas does Glendale Heating serve?

We serve the Greater Seattle area — including Seattle, Bellevue, Renton, Kent, Burien, Des Moines, Federal Way, Auburn, Tacoma, and surrounding King and Pierce County communities. Not sure if you're in our area? Call (206) 243-7700 and we'll let you know.

More answers on the full FAQ page .

Request Service

Ready for comfort you can count on?

Whether it's a furnace that quit on a cold morning or a whole new system, the Glendale team is ready. Honest pricing, expert work, and 87+ years behind every visit.

Hours & Emergency

  • Mon–Sat: 8:00 AM – 7:00 PM
  • Sun: Emergency On-Call Only
  • Emergency line: (206) 243-7700