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Serving the Greater Bellevue Area



Residential and Commercial HVAC Contractors in Issaquah, WA

Issaquah, WA experiences warm summers and cold winters, meaning that every building in the area needs a reliable HVAC system to provide heated and conditioned air. That include both residences and commercial properties, and can encompass indoor air quality products and similar products as well as HVAC systems.

At S&L Mechanical Heating and Cooling, we’re your one–stop solution to HVAC contracting services for residences and commercial properties alike. We can install a new system, replace an old one, and conduct repairs and maintenance to keep yours running in between. We offer emergency services too, so you never have to wait for help!

Air Conditioning

Air conditioners don’t always pick the ideal time to break down, and when they do, you can’t always wait until normal business hours to get the issue taken care of. That’s why we offer emergency services for your air conditioning system 24 hours a day, seven days a week. Our team will be there in a flash and take care of any problem big or small, helping your home get back to the cool, comfortable conditions it requires.

Ductless Systems

One of the benefits of ductless air conditioning systems, besides the money they can save, is the ability to provide precise temperature control. That lets different family members set the temperature in different rooms and sections to taste, which ensures that everyone is comfortable and there are no squabbles between family members over the thermostat setting.


Heating repair issues rarely crop up at the most opportune time. Here in Issaquah, WA, our winters are cold and wet, and when you don’t have reliable heating, it can make your home very unpleasant very quickly. Without prompt heating repair services, a sudden breakdown can quickly turn into a disaster.

Our team is ready to go with heating repair services anytime, day or night. We’ll move swiftly to get your heating problem fixed no matter when it happens.

Indoor Air Quality

Indoor air quality can be as important as temperature control when it comes to keeping your Issaquah, WA home comfortable. There are ways you can tell when you need to take steps to improve it, like with an indoor air quality installation from us. They can include, but are not limited to, the following:

  • Excessively muggy air.
  • Stale or stagnant air.
  • Mold growth, especially in dark corners like under the sink.
  • Static electricity, nosebleeds or dry, itchy skin.
  • Spikes in your monthly heating and cooling bills.

Water Heaters

Tankless water heaters are offered as an alternative to more traditional tank models: heating the water instantly as it moves through the pipe in your home instead of keeping it in a tank and dispensing it as needed.

Tankless systems cost more to install and they work better in smaller homes without as much activity in the plumbing system. They tend to cost less to run, however. They also don’t run out of hot water the way tank systems do.

Commercial HVAC

Commercial heating and air conditioning units require servicing and repairs just like residential units do. But commercial systems are much different than residential systems, since they must heat and cool a much larger space and meet the changing demands of an operating business.

That’s why we offer dedicated commercial HVAC services with skilled professional technicians who have years of experience dealing with such systems, and who can handle the unique needs of a commercial space.