The HVAC, mechanical, and electrical partner behind the Greater Triangle's most ambitious residential and commercial builds. Built around a consultant-first model — we sit at the table early and stand behind the work long after closeout.
RAIR is the HVAC, mechanical, and electrical contractor on the Greater Triangle's most demanding residential and commercial builds. We don't just install — we consult on the design, coordinate with your trades, and stand behind the build long after closeout.
Full design-build for custom homes and spec builds. Manual J/D/S load calcs, zoned systems, ductwork — engineered with your floor plans, coordinated with your trades.
Explore residential → 02Office buildouts, retail, religious facilities, medical, and data centers. We bid from your engineer's design package — 10-day RFP turnaround standard.
Explore commercial → 03Net-zero, passive house, tight-envelope builds. ERV/HRV, blower-door coordination, full commissioning. Energy Star Certified Installer.
Explore HPH →
Most HVAC subs show up at rough-in with a price and a clipboard. That's not how we work.
RAIR is built around a different model: we sit at the table early, advise on system selection during design, flag downstream coordination issues before they cost you change orders, and stay invested in the project through commissioning and beyond.
Treat us as the mechanical consultant who happens to also hold the licenses to install the work. That's been our edge in the new construction space — and the reason our builder relationships compound year after year.






Highly recommend RAIR. They did our install and also handle all of our maintenance and repairs.
We've used RAIR for years. Very honest company. Great work, every time.
RAIR is the best around. Period.
Great owner, great team. Couldn't ask for better service.
Five-star service from start to finish. They came out for an HVAC replacement and treated our home like their own.
Nick and the RAIR team installed our new system. Communication was clear, work was clean, and the price was honest.
Durham, Orange, Chatham, and Wake counties — plus a few adjacent overflow areas. 22 cities, same crew everywhere.