Solutions. Not Surprises.
20+ Years of Service
When your furnace stops working on a cold day in Post Falls, you need a team that shows up ready to fix it. Mainstream provides fast, dependable heating repair, day or night, so you’re not left dealing with the cold for long. Our licensed HVAC technicians handle everything from quick repairs to full system replacements, with clear communication every step of the way. Since 2000, homeowners have trusted us for honest pricing and work that’s done right the first time. With fully stocked trucks and thorough diagnostics, we make getting your heat back on simple and hassle-free.
Awards & Accreditations
Your Local Experts
Mainstream Care Club
If your furnace goes out in Post Falls, Mainstream Care Club members get priority scheduling for faster repairs, without dispatch fees. Membership also includes 10% savings on services and three annual tune-ups for your plumbing, heating, and cooling systems. These routine visits help catch small problems early, so your furnace runs more reliably and you’re less likely to deal with unexpected breakdowns during the winter.
Home Comfort Guarantee
Every furnace repair in Post Falls is backed by Mainstream’s Home Comfort Guarantee. You’ll receive a clear, upfront quote with no hidden costs, along with service from licensed, background-checked technicians. If something isn’t right, we’ll make it right. Our goal is simple—fix your heating system properly and make sure your home stays warm and dependable when it matters most.
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Spokane Service Area
Greater Spokane & Beyond
From Spokane to Coeur d’Alene, we help homeowners across the Inland Northwest with plumbing, heating, cooling, and electrical services—day or night.
Not seeing your area? Give us a call at 509-237-6483
Our Blog
Furnace Repair in Post Falls
When winter hits Post Falls, there’s no mistaking it. Cold winds sweep in off the river, temperatures drop into the 20s, and furnaces become the lifeline of every home. Many Post Falls neighborhoods – from the tree-lined streets near Greensferry to the newer developments around Prairie Falls – blend older homes with fresh builds, meaning a wide mix of heating systems, each with their own challenges. Whether it’s an aging gas furnace struggling to keep up or a newer unit that needs mid-season maintenance, having a 24-hour local heating team makes all the difference.
At Mainstream, our certified technicians know the specific demands of living in North Idaho. We’ve helped countless Post Falls homeowners and small businesses handle frozen filters, blower motor failures, ignition issues, and complete system breakdowns during those deep-freeze weeks. We also understand that efficiency matters here — where long heating seasons and rising energy costs mean even small furnace issues can drive up monthly bills. That’s why every repair comes with a full performance check, honest guidance, and the goal of getting your heat restored quickly, safely, and affordably.
We’re not just fixing furnaces — we’re protecting the comfort and reliability of homes across the Inland Northwest.
Explore our complete lineup of Post Falls home comfort services:
From thawing frozen homes to fine-tuning high-efficiency systems, Mainstream keeps Post Falls warm, safe, and ready for winter — with reliable furnace repair backed by 20+ years of trusted service.
