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HVAC Service in Des Moines, WA

Need HVAC repair or installation in Des Moines, WA? Glendale Heating And Air Conditioning offers expert AC, heating, and air quality services. Call today!

Dealing with a Failing Furnace, Inconsistent Cooling, or Stuffy Air in Your Des Moines Home?

Are you constantly adjusting your thermostat, struggling with a furnace that can’t keep up, or finding your home uncomfortably humid and stuffy even with the windows closed in Des Moines? The unique marine climate and varied housing styles here often lead to specific HVAC challenges, from systems struggling with consistent dampness to older units simply reaching their limit. At Glendale Heating And Air Conditioning, we understand these local frustrations and are ready to address your heating, cooling, and indoor air quality concerns promptly and professionally.

Comprehensive HVAC Services for Des Moines Homeowners

Air Conditioning Services

When the Des Moines summer arrives, reliable air conditioning is crucial for your family's comfort, and our services ensure your system is ready to perform.

Heating Services

Keeping your Des Moines home warm and efficient through the damp, cool months is our priority, and our heating services cover every aspect of your system's needs.

Heat Pump Services

For efficient, year-round comfort in Des Moines, heat pumps are an excellent solution, and our specialized services keep them running at peak performance.

Ductless Mini-Split Services

When you need flexible, targeted heating and cooling for specific areas of your Des Moines home, our ductless services provide efficient, tailored comfort.

Indoor Air Quality Solutions

Ensuring the air inside your Des Moines home is clean, fresh, and properly balanced is essential for health and comfort, especially in our damp climate.

Smart Thermostat & System Maintenance

Optimize your energy use and extend the life of your HVAC system in Des Moines with our smart thermostat integration and thorough system maintenance programs.

Addressing Common HVAC Challenges in Des Moines’ Marine Environment

Living in Des Moines means enjoying stunning Puget Sound views, but it also means dealing with specific environmental factors that impact your HVAC system. One of the most common problems we diagnose is premature corrosion and wear on outdoor units due to the constant exposure to salt-laden marine air. This can significantly reduce the lifespan and efficiency of air conditioners and heat pumps, leading to unexpected breakdowns.

The Impact of Salt Air on Your System

We see it all the time in homes near the water, from the marina district up into the Zenith and Woodmont neighborhoods. The fine metal fins on your outdoor condenser coil can start to corrode and pit, which restricts airflow and forces the system to work much harder to cool your home. This not only drives up your energy bills but also puts immense strain on the compressor, the heart of your system, which can lead to costly failures.

Managing Persistent Indoor Humidity

Another frequent concern for Des Moines homeowners is managing indoor humidity. The consistent dampness from the Sound can infiltrate homes, contributing to a stuffy, clammy feeling, condensation on windows, and even creating environments conducive to mold and mildew growth if not properly controlled. Simply running your air conditioner more isn't always the right solution, as it may not be designed to effectively remove the high levels of moisture we experience here.

Proper humidity control often requires a more integrated approach. We frequently consult with homeowners about whole-home dehumidifiers that work in tandem with the existing HVAC system to maintain a healthy and comfortable indoor environment. This helps protect your home’s structure, improves air quality, and makes you feel more comfortable at higher thermostat settings, saving you money.

Challenges in Older Des Moines Homes

Many homes in Des Moines, particularly those built in the mid-20th century, were not designed with modern energy efficiency standards in mind. This means older furnaces and air conditioners often work harder to maintain comfortable temperatures, leading to higher energy bills and uneven heating or cooling. You might notice that some rooms are always too hot or too cold, a sign that the system or the ductwork is not performing as it should.

We also find that the original ductwork in these homes can be a major source of inefficiency. Over decades, ducts can develop leaks, become disconnected in crawlspaces, or may have been poorly designed from the start. This means a significant portion of your heated or cooled air could be escaping before it ever reaches your living spaces, which is a tremendous waste of energy and money.

The Rise of Energy-Efficient Upgrades

Because of these issues with older homes, we see a strong interest in upgrading to more efficient technology. High-efficiency heat pumps are becoming an increasingly popular choice for Des Moines residents. They provide both heating and cooling in one unit and are exceptionally effective in our mild climate, offering significant energy savings over older gas furnaces and traditional air conditioners.

These issues are not unique to Des Moines; we see similar patterns in nearby waterfront communities like Normandy Park and even parts of Federal Way. The combination of proximity to the water, the age of the housing stock, and the original construction methods all play a significant role in HVAC system performance and longevity throughout our local area.

Why Des Moines Customers Choose Glendale Heating And Air Conditioning

When you choose Glendale Heating And Air Conditioning, you're partnering with a local, family-owned business that has been serving the Greater Seattle area since 1938. Our Burien location means we're right next door to Des Moines, offering prompt, familiar service from technicians who know the unique challenges of HVAC systems in this specific environment. We aren't just a service provider; we're part of the community, committed to your comfort for the long haul.

A History of Local Service and Adaptation

Our story began with delivering coal to keep homes warm, and as technology changed, we adapted, moving to heating oil delivery in 1952. We evolved again by establishing a dedicated service department and, in 1963, became an authorized Lennox Dealership, expanding into full-service HVAC installation. This history of adaptation shows our deep commitment to meeting the changing needs of homeowners in our community.

Unmatched Quality and Custom Solutions

Our commitment to quality is underscored by our status as a Lennox Premier Dealer, a distinction earned through consistent excellence in service and installation. We are fully licensed and insured, providing you with complete peace of mind. Our on-premises sheet metal shop is a key advantage, allowing us to custom-fabricate ductwork and fittings, ensuring your system is perfectly tailored to your home's unique layout for optimal efficiency and performance.

This in-house capability is especially valuable for the diverse homes in Des Moines, from older ramblers with tight crawlspaces to newer, more complex layouts. Instead of trying to make standard parts fit, we build the exact components needed for a perfect installation. This precision eliminates air leaks, improves airflow, and ensures your new system delivers the comfort and efficiency you paid for.

An Honest, No-Pressure Approach

We believe in providing honest, straightforward service from the very first call. Our technicians perform thorough, no-pressure diagnostics to identify the root cause of your issue, not just treat the symptoms. We then provide you with clear, upfront pricing and explain your options so you can make an informed decision that’s right for your home and budget, with no surprises or hidden fees.

Our goal is to build lasting relationships with our customers based on trust and reliable results. We leverage our decades of experience to deliver lasting comfort and peace of mind to your home. Whether we're protecting your outdoor unit from marine corrosion or upgrading an inefficient older system, our focus is always on providing the best possible solution for your specific needs.

Your Trusted Partner for Reliable Home Comfort in Des Moines

For over 85 years, Glendale Heating And Air Conditioning has been dedicated to ensuring the comfort and satisfaction of homeowners across the Greater Seattle area, and Des Moines remains a cornerstone of our service commitment. We understand that your home comfort needs are paramount, and our team is here to provide the expert, reliable HVAC solutions you and your family deserve. We have seen it all and solved it all, right here in our own backyard.

Don't let HVAC problems disrupt your comfort any longer. Take the next step towards a perfectly climate-controlled home by reaching out to our team today.

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 .

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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