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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Current Summer Specials

FREE

Camera Inspection with any Hydrojet drain cleaning

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FREE Second Opinion

on any replacement estimate from another company

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SAVE up to $650

New Water Heater Installation: $100 OFF Standard, $200 OFF High Efficiency, OR $350-$650 OFF Tankless

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$74.95

Cooling System Inspection

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FREE Service Call

with Any Cooling Repair

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$75 OFF Installation

of Customer Supplied Faucet with Free Home Plumbing Inspection*

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$100 OFF

Coil Cleaning

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FREE

Plumbing Dispatch Fee If Work Is Performed at Time of Service

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$100 OFF

Drain Cleaning + Free Camera Inspection

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$1,750 OFF FULL HVAC Install

or 0% Financing up to 60 Months

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What Can we Help You With?

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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HVAC Membership Plumbing Membership

Already have an HVAC membership? Get 50% off plumbing maintenance!

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We had to have a new furnace and AC installed shortly after we moved, after John from SSI looked it over throughly and determined that the old one was unsafe. He explained things very thoroughly. Renee got us on the...

- Laura H.
I am a long time customer of SSI, having a heat pump/AC system installed in the late 90's. Over the years they have always been prompt and courteous whenever I've needed them for service or repairs. They just...

- Mary S.
Bill was easy to deal with, and responsive to my inquiries. His pricing sealed the deal. Brendan and Reid were terrific.....courteous, professional, working hard to make the installation of my new Mitsubishi mini...

- Paul R.
Clint was very professional and explained everything in an easy to understand fashion. He answered all of my questions and gave his honest opinion as far as what my particular home would benefit from. He made...

- Janet S.

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.

Latest Blog Posts

How to Know if Your Pipes are Nearly Worn Out

While you may not think about it too often, your plumbing system is a sophisticated part of ensuring the home runs efficiently. Showering, washing...

Posted Aug 13, 2018 | Read More

Why Is Your AC Blowing Warm Air?

As the weather reaches peak temperatures this summer, getting relief indoors is essential to your comfort levels and health. But, if your AC unit...

Posted Jul 23, 2018 | Read More

Warning Signs: Plumbing Edition

Plumbing isn't always accessible for homeowners, making it a challenge to detect when it needs a repair. Pipes under sinks and in crawl spaces...

Posted Jul 10, 2018 | Read More

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