Homeowners across Merrimack County call about icicles. Icicles are cosmetic. The dam behind them, holding back standing water, is not. As part of our complete Concord winter roof services, crews handle heated roof & gutter cables across Merrimack County.
Long Winters, Layered Ice: The Merrimack County Problem
A roof in Merrimack County spends most of the year's coldest months under continuous load. That is a different problem from a single heavy storm, and it produces a different kind of ice.

Every mild afternoon through that stretch releases a little meltwater, and every cold night sets it at the overhang. Done fifty times, that is how an eave ends up carrying several hundred pounds of ice by March.
Ice-barrier practice in Merrimack County
In the colder New Hampshire jurisdictions the membrane requirement extends well up the roof plane rather than stopping at the first course, precisely because the ice here does not stay near the edge.
Heated Roof & Gutter Cables in Concord: How The Work Runs
The electrical side
A dedicated GFCI-protected circuit, properly rated terminations and a disconnect somebody can actually reach. Not an extension cord out of a bathroom window, which is what gets found on a surprising number of existing Concord installs. Icicles and a Wet Ceiling.
Done properly it is an ordinary piece of exterior electrical work and it should look like one.
What shortens the life of a cable run
Self-regulating cable is generally good for a decade or more. What ends it early is ultraviolet exposure on a run left unshaded through summer, physical damage from somebody raking or shovelling over it, rodents in the gutter, and ice loading on clips that were never rated for it.
A system installed with UV-stable cable, proper clips and a note on the roof plan saying where it runs will usually outlast one that was simply stapled up in a hurry.
Sizing the eave zig-zag to the cold overhang
The zig-zag has to extend far enough up the roof to cover the part of the deck that sits past the heated wall line, because that is the part that stays below freezing.
Measured from inside the attic rather than guessed from the ground. On a house in Concord with a deep overhang or a cantilever that distance is often further up than people expect.
Valleys, downspouts and the parts people forget
A zig-zag along the eave with nothing in the valley and nothing down the downspout produces a melted strip of roof draining into a solid block of ice. The water still has nowhere to go, and the dam just forms somewhere slightly different.
A system that works runs the full path: eave, valley, gutter trough and all the way down the downspout to daylight. The downspout run is the piece most often left out and the piece most often responsible for the system not working.
Commercial and multi-family runs
The same cable on a large building becomes a different exercise - several hundred feet of run, multiple circuits, a controller that something has to monitor, and a decision about who gets the alarm when a circuit fails.
Scope, circuit loading and control strategy get worked out with whoever maintains the Concord building, because a heat-trace system nobody owns is a heat-trace system that stops working in its third winter.

What you get in Concord
- Complete drain pathEave zig-zag, valleys, gutter trough and downspout to daylight
- GFCI-protected circuitDedicated circuit and proper terminations, not an extension cord
- Zig-zag sized properlyEave coverage measured against the actual cold overhang
| Coverage area | Concord and Merrimack County |
|---|---|
| Pricing model | Billed by the crew hour, rate quoted before dispatch |
| Local ice-barrier practice | Eave membrane required on new work |
| Primary climate stressor | Sustained sub-freezing, long season |
| Dispatch window | Same day to 24 hours |
| Service | Heated Roof & Gutter Cables in Concord, NH |
| Removal method | Low-pressure steam only. No chipping, salt or pressure washing. |
Merrimack County Coverage From Concord
Crews working Concord cover the adjoining communities on the same route — Loudon, Bow, Suncook, Chichester and Dunbarton — so a storm week usually means one truck handling several addresses in Merrimack County rather than separate trips.
Nearest hub towns with their own heat cables pages: Goffstown, Manchester, Franklin, Bedford, Laconia, Merrimack.
Concord sits inside the regular New Hampshire service area, so a crew is usually scheduled the same day or the following morning.
Most jobs do not stop at one service. Heat Cables in Concord often runs alongside ice dam removal in Concord, and both get written into one scope rather than billed as separate visits.
Active leak right now? Our 24/7 Concord steam ice dam removal crews are dispatched first during a freeze event. Call (888) 561-9664.




