Expert articles from Walter Orellana — HVAC maintenance, water heater guides, energy efficiency tips, and more.
No hot water, a leak at the tank, or popping noises? What common water heater problems usually mean, and when a repair makes more sense than a new unit.
5 min read · Read →HVAC InstallationThinking about a ductless mini-split? How these systems work, where they fit in Northern Virginia homes, and what a proper installation includes.
5 min read · Read →HVAC MaintenanceSeasonal tune-ups prevent 90% of HVAC breakdowns. Here’s exactly what should happen during each maintenance visit.
5 min read · Read →Water HeatersTankless water heaters save energy but cost more upfront. Here’s how to decide which makes sense for your household.
5 min read · Read →HVAC RepairMost AC failures don’t happen suddenly. These warning signs give you time to act before you’re stuck in a heatwave without cooling.
4 min read · Read →Hiring a ProNot all HVAC companies are equal. Here’s what to look for beyond the license to find a contractor you can trust.
4 min read · Read →Energy EfficiencyThese upgrades reduce your energy bills starting day one. Most pay for themselves within 3–5 years in Northern Virginia.
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Master HVAC Technician · ABBA Home Services
With over 15 years of experience in HVAC and water heater service across Northern Virginia, Walter writes practical guides to help homeowners make informed decisions about their heating, cooling, and plumbing systems.
Call Walter — he's happy to answer questions about your specific situation.