Furnace Doctors

Reliable Furnace Installation in Mercer Island, Washington

A heating or cooling failure calls for an HVAC company with the knowledge and experience to get your system working properly again. Furnace Doctors brings over 45 years of industry experience to furnace installation in Mercer Island, combining factory-trained technicians with generations of hands-on HVAC knowledge.

Call Today At (888) 414-4328 (HEAT)

Emergency Service Available

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About Us

Established in 1986, Furnace Doctors is a family-run HVAC company whose industry experience reaches back well beyond its founding. The family entered the industry in 1953, and that legacy continues today through second-generation ownership and active third-generation involvement. We’ve completed thousands of successful installations while building our business largely through referrals and long-standing customer relationships. We handle heating and cooling service, installation, repairs, and maintenance, making Furnace Doctors your one-stop HVAC shop. Our focus has always been straightforward: knowledgeable service, quality workmanship, dependable equipment, and solutions made to last. Learn More

Heating Services

Cold temperatures can quickly reveal problems with your heating system. Furnace Doctors services, repairs, maintains, and installs heating systems with an emphasis on dependable performance and quality materials. Whether your heater has unexpectedly failed or you’re considering an upgrade, our technicians can diagnose your needs and explain the next steps.

Air Conditioning Services

When your space starts getting uncomfortably warm, Furnace Doctors can help get your cooling system back on track. Our team installs, maintains, services, and repairs air conditioning systems for residential and commercial properties. Our technicians work with all makes and models, bringing extensive training and proven experience to each job so your system receives knowledgeable, professional attention.

HVAC Installation

A new HVAC system is only as good as the equipment, design, and workmanship behind it. We use quality materials and equipment backed by experience gained through thousands of successful HVAC installations. With custom sheet metal fabrication available in-house and in the field, we can approach installations with greater control over fit, quality, and performance.

HVAC Maintenance & Repair

Ignoring a seemingly small heating or cooling problem can lead to a more disruptive issue later. We provide experienced repairs and ongoing maintenance to help keep HVAC equipment performing properly. With an on-call department offering after-hours service, Furnace Doctors can provide experienced assistance when problems occur outside normal business hours.

Why Choose Us

There’s a reason Furnace Doctors has remained busy for decades without relying on expensive television or radio advertising. Our reputation comes from doing quality work that customers feel confident recommending to others. We don’t subcontract any phase of our work, giving us greater control over quality from beginning to end. Our factory-trained and certified technicians receive extensive training, while our in-house custom sheet metal fabrication shop, mobile sheet metal capabilities, and licensed electrician help us handle demanding projects properly. With experienced staff members who have spent decades with our company, customers benefit from knowledge that only comes through years of hands-on HVAC work.

Furnace Doctors - servicing Mercer Island, Washington

Search No More for Furnace Installation in Mercer Island, WA

Choosing Furnace Doctors means working with a company equipped to handle far more than a quick repair. With factory-trained technicians, in-house work, custom fabrication capabilities, and electrical expertise, we’re equipped to consider your HVAC system as a whole. A comprehensive approach can make an important difference when the problem extends beyond one component.

Our decades of practical experience support projects involving repairs, maintenance, custom fabrication, electrical work, replacements, and complete HVAC installations. We pair careful workmanship with quality materials and equipment to deliver HVAC solutions designed for lasting reliability.

Reach Out Today

Your heating and cooling system is too important to leave to guesswork. Our family HVAC tradition, more than 45 years of experience, expert technicians, in-house capabilities, and after-hours service give customers dependable support.

Whether you need help with a breakdown, scheduled maintenance, or complete equipment replacement, Furnace Doctors is ready to respond. Call Furnace Doctors today to put generations of HVAC knowledge and decades of hands-on experience behind your heating and cooling system.

    
 
 
       Posted on Google  
   
   EK - Mad Kandi 
 July 8, 2026
 
 
  JJ and the team saved us!

Our unit completely stopped working on one of the hottest days and thankfully we were able to get these guys out same day, while other places told us next day.

Thank you!
  
 
      Posted on Google  
   
   SAMARTH SHETTY 
 June 17, 2026
 
 
  I had a great experience with Furnace Doctor.
Rhett arrived on time, quickly diagnosed the issue, added refrigerant, and had my AC running properly again in no time. He was professional, efficient, and explained what he was doing without trying to upsell unnecessary work. The whole process was smooth and stress-free.
  
 
      Posted on Google  
   
   S T 
 June 16, 2026
 
 
  Came same day - and fixed our central air conditioning had the needed part on em which was great.
  
 
      Posted on Google  
   
   Vinay N K 
 May 13, 2026
 
 
  Had a great experience with Furnace Doctors. Technician JJ was extremely knowledgeable and took a very systematic approach to troubleshooting and diagnosing our HVAC issue. He carefully checked all components, including temperatures, capacitor functioning, and coolant levels, and thoroughly tested the system after the repair to confirm everything was working properly. JJ explained the process clearly and was professional throughout the visit. Really appreciated the attention to detail and confidence in the work performed. Highly recommend! The poor ratings online did not reflect the experience I had.

Need Professional HVAC Help?

Furnace Doctors

Proudly Serving the Greater Seattle Area!

Auburn, WA 98002

furnacedoctorsinc@aol.com
(888) 414-4328