Merrimack's builder-grade furnaces and ACs went in by the hundreds during the 90s — and they're leaving the same way. When yours is next, one call lines up licensed local installers and a schedule two working parents can live with.
📞 Call (603) 506-4389The subdivisions off Merrimack's turnpike exits were built fast, and the HVAC that went in was bid to the builder's price sheet, not to a homeowner's long game. Thirty years later that equipment is retiring street by street — and because so much of it went in during the same few years, replacement season here arrives for whole neighborhoods at once.
Through Merrimack HVAC, one call reaches licensed, insured local contractors who handle the full replacement: load calculation, equipment options at more than one price point, permits, and an install day that's planned around a family calendar instead of parked in the middle of it.
There are two kinds of replacements: the one you plan and the one the weather assigns you. Planned, you compare quotes, pick equipment deliberately, and book a week that works around school drop-offs and two jobs. Assigned, you take whatever's in a supplier's warehouse during a cold snap, at cold-snap pricing, with everyone else in the neighborhood in line ahead of you. If your system is deep into its second decade, the cheapest thing you can do is choose the timing yourself.
Call (603) 506-4389 for side-by-side quotes and an install date that fits around two jobs and a bus schedule.
Call (603) 506-4389A like-for-like furnace or AC swap is typically a single working day; a full system with ductwork corrections can run two. The contractors we connect you with will tell you up front which yours is and when they actually need someone home — usually the morning walkthrough and the final checkout, not the hours in between. Say what your week looks like when you book and the plan gets built around it.
Get it quoted both ways. Doing them together usually costs less than two separate projects — shared labor, one permit cycle, a matched coil — and it ends the era of waiting for the second shoe to drop. But if one of them genuinely has years left, an honest quote says that too, and a staged plan is a perfectly good answer.
Yes — mechanical and related permits are part of a legitimate replacement, and the contractor should pull them and schedule the inspection as part of the job, not leave it as your homework. It matters beyond the rulebook: unpermitted work tends to surface at the worst time, usually when you sell. If a quote is vague about permits, treat that as data.
Share what's going on and expect a callback that fits a family schedule.
Same phone number for all of it, booked around a week that's already full.