Advice you can count on – When you have an emergency, you are not always in the position of asking questions to determine if the repairs you are receiving are what you need. At Jennings, our NATE Certified technicians will walk you through the repairs and explain why you need them. You can trust that everyone on Jennings’ staff will give you honest advice.
Our team is NATE-certified.  North American Technician Excellence represents the entire HVAC industry and is an independent, third-party, non-profit organization.  NATE-certified technicians are skilled professionals who have verified real working knowledge of HVAC systems through specialized exams.  Whether your heating or cooling system requires routine maintenance or complex repair, the NATE-certified team from Nerthling's Heating and Air Conditioning shows up on time, prepared to complete the job quickly and accurately, without unnecessary multiple house calls.  We work on all makes and models and offer affordable and convenient service plans to protect your equipment from wear and tear, and ensure like-new performance.

Heating Repair Company CO


Over the Labor Day weekend our hot water heater decided it was time to say good bye. Since we had our fall check the week before, we called Nerthlings. I cannot say enough good things about how this situation was handled. The technician, Dwain, was knowledgeable, friendly, and quite helpful without being pushy. Our questions were answered clearly. I am never made to feel that this is something...
Furnaces and thermostats are not mix-and-match appliances. Using the wrong type of thermostat with a furnace will cause operating problems and can be dangerous. Although thermostats look similar, they are designed very differently. There are numerous types of heating systems and thermostat systems and they need to be coordinated for safe and proper operation. There are three types of thermostat systems used today: millivoltage, low voltage, and line voltage.​
It can also be a health hazard. Technicians say a furnace inspection can reveal carbon monoxide leaks, which are hard to detect because the gas is colorless and odorless. Carbon monoxide can lead to headaches, dizziness, nausea and even death. An estimated 500 people die each year, and 15,000 people are taken to emergency rooms, because of exposure.
You can help prevent issues with your system by scheduling routine maintenance on your furnace every year. During a maintenance visit, our technician will inspect and clean your furnace to help the system to run more smoothly and efficiently for the coming winter. You can have it done any time, but the maintenance is typically performed in the fall. Ask about our planned service agreement program!
A pinging or popping sound coming from the duct work can come from thermal expansion—the ductwork expanding and contracting as it heats and cools.  Or, air blowing past a loose flap of metal can make the sound. Track along the duct runs, listening for the sound. If you locate it, make a small dent in the sheet metal to provide a more rigid surface that’s less likely to move as it heats and cools.

When your air conditioner is installed by a qualified Kirkland air conditioning installation technician, you can count on a reliable, effective performance. It will be properly sized for your home, and any ductwork will be expertly designed and installed. If you really want to be the heat this summer, then a professional air conditioning installation is your only option.

AAA Heating and Cooling has been the leader in residential and commercial furnace installation, heating services and air conditioning repair for thousands of clients throughout Portland, Beaverton, Hillsboro, Lake Oswego and the surrounding areas for over half a century. As a family-owned Portland, OR business, we offer a variety of services, including the installation of home heating and air conditioning systems, AC and furnace service and repair, duct cleaning as well as a variety of commercial heating and cooling solutions.

Heating Repair

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