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King of Prussia HVAC Company

At Marshall Services, the comfort of your family is paramount-and we'll stop at nothing to make sure you're completely satisfied with our many HVAC services across King of Prussia! A third-generation family-owned business, we take our responsibilities seriously and strive to be the last AC repair company you'll ever have to call.

How do we stand out?

We've experienced consistent growth since 1945, but we've never lost our genuine, old-school service approach. We may serve thousands of clients each year, but we'll still treat your home like it's the only one. We're big enough to handle all your needs, small enough to care!

A Lennox Premier Dealer, ACCA member, and NATE-certified company, we provide:

  • AC Installation
  • Heating Installation
  • AC/Heating Repair FIXTHIS“ Scheduled & Emergency
  • Indoor Air Quality

Stay Cool with a Well-Chosen AC Installation

Keep your family comfortable in the heat of summer with a modern AC replacement! With 70+ years of experience, we service all brands, makes, and models-and we can even provide a quick and affordable AC repair if your unit is still in relatively good condition.

Based on the thermal design, architecture, and size of your King of Prussia home, we'll recommend the HVAC model that best suits you. And we'll never try to sell you something you don't need!

Upgrade to an Energy-Saving Heating Installation

The right heating replacement depends upon many features unique to your home-and no one understands local architecture better than Marshall Services. Our heating units provide reliable performance with high levels of efficiency, and flexible payment plans make it easy to afford.

For even more price protection and convenience, ask about our oil delivery services! With our guaranteed low pricing, you'll never overpay again.

Scheduled and Emergency Repairs in King of Prussia

Need an AC or heating repair? Marshall Services offers both pre-scheduled and 24/7 emergency services throughout King of Prussia. The moment you notice a strange sound, foul odor, or decrease in performance, contact us!

We'll send a NATE-certified repair professional to your home for:

  • A Thorough HVAC Inspection
  • A Detailed, Upfront, No Surprise Price Quote
  • Top-Quality Repairs Backed by Strong Warranties

Breathe Easy Again with Indoor Air Quality Improvements

You may think that the air inside your home is relatively clean, but studies show that it's often dirtier than outdoor air! That means that your loved ones could be breathing in potentially contaminated air all day long.

What to do about it?

Contact Marshall Services right away for a whole house indoor air quality solution. From comprehensive duct cleaning to air purification and humidification, we'll install systems that automatically clean your air up to 125 times per day!

Get a Free, No Surprise Quote for King of Prussia AC Installation and More

Ready to join hundreds of your satisfied neighbors in King of Prussia? Then reach out to Marshall Services and see why we're consistently ranked among the best AC and heating installation companies in the region. Start now by calling us or filling out our fast online form!