Furnace Doctors

Expert Oil Furnace Installation in Mountlake Terrace, Washington

When your HVAC equipment stops keeping you comfortable, you need experienced professionals who can diagnose and correct the problem properly. Furnace Doctors brings over 45 years of industry experience to oil furnace installation in Mountlake Terrace, 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

Founded in 1986, Furnace Doctors is a family-owned and operated company built on an HVAC tradition that stretches back even further. Our family’s HVAC roots date to 1953, with the company now led by its second generation and its third generation actively involved. 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. We’ve always focused on what matters most: expert service, dependable equipment, skilled workmanship, and results designed for long-term performance. Learn More

Heating Services

Cold weather puts your heating equipment to the test. Furnace Doctors services, repairs, maintains, and installs heating systems with an emphasis on dependable performance and quality materials. From sudden heating failures to planned equipment upgrades, our experienced technicians can assess your system and recommend a practical solution.

Air Conditioning Services

When indoor temperatures start climbing, Furnace Doctors can help restore reliable cooling. Our team installs, maintains, services, and repairs air conditioning systems for residential and commercial properties. We service all makes and models, applying extensive technician training and real-world experience to every project.

HVAC Installation

Quality equipment matters, but proper design and skilled workmanship are equally important to a successful HVAC installation. We use quality materials and equipment backed by experience gained through thousands of successful HVAC installations. Our in-house and mobile custom sheet metal capabilities give us additional control over installation fit, workmanship, and performance.

HVAC Maintenance & Repair

Ignoring a seemingly small heating or cooling problem can lead to a more disruptive issue later. Our professional HVAC maintenance and repair services are designed to help heating and cooling equipment continue operating as intended. Our on-call service department also offers after-hours service, giving customers access to experienced help when HVAC trouble doesn’t happen during ordinary 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 has been built through quality work and customers recommending us to others. No phase of our work is subcontracted, allowing our team to maintain control over quality throughout the job. 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. Some team members have been with Furnace Doctors for decades, giving customers access to extensive knowledge developed through real-world HVAC experience.

Furnace Doctors - servicing Mountlake Terrace, Washington

Search No More for Oil Furnace Installation in Mountlake Terrace, WA

Furnace Doctors brings the resources and experience needed to handle HVAC needs that go well beyond basic repairs. Our combination of trained technicians, in-house workmanship, sheet metal fabrication, and electrical capabilities allows us to take a comprehensive approach. 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

Reliable heating and cooling deserves knowledgeable service rather than trial and error. Our family HVAC tradition, more than 45 years of experience, expert technicians, in-house capabilities, and after-hours service give customers dependable support.

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