Furnace Doctors

Professional Oil Furnace Repair 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 repair 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. The family entered the industry in 1953, and that legacy continues today through second-generation ownership and active third-generation involvement. Thousands of completed installations and years of customer referrals have helped us build a business grounded in lasting 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 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 indoor temperatures start climbing, Furnace Doctors can help restore reliable cooling. Furnace Doctors provides complete air conditioning installation, maintenance, repair, and service for homes and businesses. With experience across all makes and models, our trained technicians provide knowledgeable, professional attention to your cooling equipment.

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. We provide experienced repairs and ongoing maintenance to help keep HVAC equipment performing properly. 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

Furnace Doctors has stayed busy for decades without depending on costly television or radio advertising. Quality workmanship and customer referrals have built the reputation we have today. Because we keep our work in-house instead of subcontracting it, we can oversee quality from start to finish. Our extensively trained, factory-certified technicians are supported by an in-house fabrication shop, mobile sheet metal capabilities, and a licensed electrician for more demanding HVAC projects. 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 Mountlake Terrace, Washington

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

Choosing Furnace Doctors means working with a company equipped to handle far more than a quick repair. Because our technicians are factory trained and certified, our work stays in-house, and we maintain custom sheet metal and electrical capabilities, we can address the system as a whole. That matters when a project involves more than replacing one failed component.

Our decades of practical experience support projects involving repairs, maintenance, custom fabrication, electrical work, replacements, and complete HVAC installations. We focus on doing quality work with materials and equipment selected for reliable, lasting performance.

Reach Out Today

Reliable heating and cooling deserves knowledgeable service rather than trial and error. Furnace Doctors combines more than 45 years of industry experience with factory-trained technicians, in-house capabilities, after-hours service, and a family tradition that spans generations.

Whether you need help with a breakdown, scheduled maintenance, or complete equipment replacement, Furnace Doctors is ready to respond. Contact Furnace Doctors today and let our decades of practical HVAC experience go to work for your home or business.

    
 
 
       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