On November 6, 2025, this website will be updated to consolidate content relevant to all regions served by Havtech. The site will have a new look and feel, but all current services and support will continue without interruption
On November 6, 2025, this site will be updated with a new look and unified content for all Havtech regions. Services and support will continue without interruption.

Annexair

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Annexair is a privately held North American company established in 1998. Annexair is focused exclusively on designing and manufacturing high-quality, energy-efficient air handling systems.

With 99% of sales in the United States – more than 11,000 systems installed – AnnexAir has built a reputation on innovation and surpassing customers expectation.

  • Baltimore, Maryland

    301.206.9225

  • Delaware

    301.206.9225

  • Northern Virginia

    301.206.9225

  • Washington, D.C.

    301.206.9225

  • Northern West Virginia

    412.468.0133

  • Southeastern Ohio

    412.468.0133

  • Western Maryland

    412.468.0133

  • Western Pennsylvania

    412.468.0133

Get Things Done Right – Right Now

From information on new equipment to project support, from HVAC service to same-day delivery of an emergency part, we’re on hand to get you what you need fast.

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