Furnace Doctors

Prompt Oil Furnace Installation in Issaquah, Washington

When your heating or cooling system stops doing its job, you need an HVAC company that knows how to solve the problem properly. Backed by more than 45 years of HVAC experience, Furnace Doctors delivers reliable oil furnace installation in Issaquah with factory-trained technicians and generations of practical expertise.

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

Emergency Service Available

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About Us

Furnace Doctors was founded in 1986 as a family-owned and operated business, building on an HVAC tradition that began decades earlier. Our family’s HVAC roots date to 1953, with the company now led by its second generation and its third generation actively involved. Our company has completed thousands of successful installations while growing primarily through word of mouth and trusted customer relationships. From heating and air conditioning service to installation, repair, and maintenance, we’re your one-stop heating and air conditioning 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 handles heating installation, maintenance, service, and repair with dependable performance as the priority. 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

The performance of a new HVAC system depends heavily on its equipment, design, and installation quality. Furnace Doctors uses high-quality materials and equipment and has completed thousands of successful installations. Because we can fabricate custom sheet metal both in-house and in the field, our team can better manage the fit and quality of an installation.

HVAC Maintenance & Repair

A small HVAC issue can become a much larger inconvenience when it is ignored. 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

For decades, our company has continued growing without the need for expensive TV and radio campaigns. Quality workmanship and customer referrals have built the reputation we have today. We don’t subcontract any phase of our work, giving us greater control over quality from beginning to end. Factory-trained technicians, custom sheet metal fabrication, mobile fabrication capabilities, and an on-staff licensed electrician give us the resources to tackle complex work 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 Issaquah, Washington

Look No Further for Oil Furnace Installation in Issaquah, WA

Furnace Doctors brings the resources and experience needed to handle HVAC needs that go well beyond basic repairs. With factory-trained technicians, in-house work, custom fabrication capabilities, and electrical expertise, we’re equipped to consider your HVAC system as a whole. That matters when a project involves more than replacing one failed component.

From troubleshooting and maintenance to fabrication, electrical needs, replacement, and complete installations, our team applies decades of hands-on HVAC experience. 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. With 45-plus years of industry experience, factory-trained technicians, in-house resources, after-hours assistance, and generations of family knowledge, Furnace Doctors is prepared to help.

Whether your system has suddenly stopped working, needs professional maintenance, or is ready for replacement, our team is prepared to help. Contact Furnace Doctors today and put decades of hands-on heating and cooling experience to work for your property.

    
 
 
       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