One family for your
heat, your air,
and your water.
Three generations of Nampa families have trusted J&D to keep their homes comfortable and their water clean. Furnaces, air conditioners, heat pumps, water heaters, and whole-home water treatment — all under one roof, 24/7.
Everything that keeps your home running
Most Nampa homes need three things to feel right: warm in winter, cool in summer, and clean water year-round. J&D is the rare local company that handles all three — so it's one call, one trusted crew, one company that stands behind the work.
Your water is harder than you think
Fed by groundwater wells loaded with calcium and magnesium, most Treasure Valley homes run water on the hard-to-very-hard end of the scale. That mineral load is what spots your glasses, crusts your fixtures, and quietly eats years off your water heater and appliances. The fix starts with knowing your number.
Water above 7 grains per gallon is considered hard, and much of Nampa, Meridian, and the surrounding Valley sits well past that. A whole-home softener from J&D brings it back down to zero — protecting every pipe, faucet, and appliance in the house.
Furnace out? Hard water?
Tell us and we'll call right back.
Describe what's going on and a real J&D technician from Nampa gets back to you — 24/7, no answering service, no runaround. Same family that's been fixing Treasure Valley homes since 1961.
(208) 466-6910Sixty years of Treasure Valley trust
J&D has kept Nampa families comfortable since 1961 — back when a handshake was the contract and doing right by your neighbor was just how business worked. Six decades later, under owner Kirk Miko, that hasn't changed.
What has changed is how much we do. We started with heating and cooling and grew into complete water treatment, because a comfortable home is a whole home — the right temperature and clean, safe water from every tap. Today we're one of the only local companies you can call for all of it.
Trusted in Treasure Valley homes
“Our furnace died at 11pm in January and J&D had someone out before midnight. Same family that put in our AC two summers back. You don't find that kind of service anymore.”
“They put in a water softener and fixed our AC in the same visit. No more spots on the dishes and the house finally cools down. One call did it all.”
“Honest crew. They told me my furnace had a few good years left instead of pushing a new one. That's why we've used J&D for three decades.”
Proudly serving the whole Treasure Valley
Based in Nampa, our trucks cover Canyon and Ada counties and everything in between — fast response times because we're your actual neighbors, not a call center three states away.