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Heating and furnace repair in Northern Virginia: “Elvis Diaz, their service tech, was amazing”

Google review, September 7, 2026 · last updated October 27, 2026

We found SwiftPro by googling and learned that their service district includes Fauquier County. Elvis Diaz, their service tech, was amazing. He diagnosed the multi-year problem we had with our HVAC quickly, which the HVAC installer repeatedly missed! The issue was a communication problem that knocked out the HVAC during a thunder storm. The installer kept replacing circuit boards and other parts, some at our expense I think, others under warranty. The installer completely overlooked the wiring and it was a mess, Elvis found. Elvis replaced the wiring the same week as his initial visit and our HVAC was fixed and it keeps working during and after subsequent thunder storms. We are so grateful to Elvis and Swiftpro!

SwiftPro's reply on GoogleJudy, thank you, and yes, Fauquier County is well within our range. Elvis will be glad to see this. A communication fault that only shows up in a storm is one of the hardest calls in this trade, and it is why parts keep getting replaced when the wiring is the real problem. Elvis reading it correctly, then getting it rewired that same week, is exactly the work we want our name on. Glad the system has held through every storm since, and we are here whenever you need us.

Judy L. · September 7, 2026See it on Google (Chantilly profile) ↗

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