Not Too Cold.
Not Too Hot.
Your home should feel just right.

We make your indoor comfort our business. And we do it right with heating and air conditioning equipment, service, and repairs that have earned us the loyalty of our customers for more than 35 years.

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Explore the financing options available to you through SSI and Wells Fargo.

Immediate comfort. Extended financing.

Explore the financing options available to you through SSI and Wells Fargo.

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HVAC or Plumbing Maintenance Membership

Be prepared for the seasons and prevent potentially expensive breakdowns and repairs, with priority service and an average of 10-20% savings.


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About SSI

Northern Virginia’s Trusted Heating & Air Conditioning Contractor

SSI is a full-service mechanical contractor in Virginia (Va) specializing in creating comfort through indoor heating and air conditioning. Founded in 1979, (SSI) remains committed to the values that have helped us grow from a small family-owned service business to a leading Northern Virginia residential and commercial HVAC contractor.

Still family owned and operated, SSI is now the trusted mechanical contractor for significant commercial enterprises, including Dulles Airport, and we bring indoor comfort to a large number of loyal residential customers. We do it all with an unwavering commitment to quality, timeliness, and value that have been part of our mission from the beginning.

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Latest Blog Posts

The winter weather is unpredictable, and when snow is in the forecast, you never know if it's going to be a light dusting or a complete blizzard....

If you have hard water, you’re probably already familiar with the signs of limescale and the techniques to combat it. Even if you know a little...

Millions of people travel out of town for the holidays. But, that doesn’t mean that your HVAC system gets a vacation just because you aren’t there...

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