Ice Dam & Roof Snow Removal in Andover, MA

If you're researching ice dam removal or prevention in Andover, MA, here's the short version: an ice dam is a solvable problem when it's handled the right way, and a roof-and-ceiling problem when it isn't. Senco is based in Tewksbury — about 6 miles and a 14-minute drive from Andover — and our crews clear ice dams and roof snow safely every winter, and handle the insulation, ventilation, and ice-barrier work that prevents them the rest of the year, on everything from antique colonials to Shawsheen Village homes, without the shortcuts that damage shingles or make a leak worse. This page covers what that looks like specifically for Andover homes — for the full rundown across our whole service area, see our ice dam & snow removal overview.

What Is An Ice Dam?

Heat escaping through your attic warms the upper roof deck just enough to melt the snow sitting on it. That meltwater runs down the roof until it reaches the cold overhang above your gutters — where there's no heat underneath — and refreezes. Layer by layer, that refreezing builds a ridge of ice at the eave. The ridge is the "dam": it blocks the water behind it from draining off the roof, so it has nowhere to go but sideways and backward, under your shingles.

How Ice Dams Damage Your Roof

Shingles are built to shed water running downhill, not to hold back standing water. Once an ice dam forces meltwater uphill under the shingle line, it finds every seam, nail hole, and lap in the underlayment. From there it soaks the roof sheathing, saturates attic insulation, and shows up inside your house as a stained ceiling, a bubbled wall, or water at a window trim — often nowhere near where the dam actually formed. If an ice dam has already caused a leak inside your home, our team handles the interior damage the same way we handle any storm leak — see our roof leak repair page.

Roof Snow Load Risk On Andover Homes

Andover carries a genuinely wide range of roof ages — a documented cluster of pre-1800 antique homes with construction windows from the 1670s through the 1770s, alongside the planned 1919–1924 Shawsheen Village community and a large body of mid-to-late-20th-century construction filling out the rest of town. Most of that antique framing has had its insulation retrofitted at some point over the centuries, and a retrofit is exactly where uneven roof-deck temperatures — and the ice dams they cause — tend to originate. Andover's building code table lists a 50 psf ground snow load and a 117 mph ultimate design wind speed, among the higher wind figures in our service area, so a couple of feet of wet snow sitting on an already-strained roofline is a real structural question, not just a nuisance. If your roof is sagging, groaning under load, or you're just not sure it's holding up, we'll take a look — and if the roof itself is aging out, our roof replacement page covers what that looks like.

Safe, Steam-Based Ice Dam Removal

We remove ice dams with low-pressure steam, not axes, hammers, or rock salt. Steam melts a clean channel through the ice down to the shingle line, giving trapped water a path to drain off the roof — without chipping shingles, stripping granules, or driving more water underneath, which is exactly what happens with a pick or a bag of salt. It's slower than hacking at the ice, and it's the only method we consider safe for an asphalt shingle roof.

Roof Snow Removal

Where excess snow is adding weight or feeding the next ice dam, we clear it from the roof edges, valleys, and problem areas with roof-safe tools — never a shovel dragged straight across shingles. The goal is to reduce load and starve the next dam before it forms, not to strip the roof bare.

Preventing Ice Dams Before They Start

Removal solves the emergency; the work that actually prevents the next one is a warm-weather project, not a winter one. On Andover's antique homes especially, attic insulation and ventilation are worth a real look — retrofitted insulation on a centuries-old roof frame doesn't always keep the whole deck at a consistent cold temperature, which is usually why the same corner ices up every year. Massachusetts also requires ice-barrier underlayment — ice-and-water shield sealed at least 24 inches past the interior wall line, 36 inches on steeper roofs — under the shingles at every eave statewide. If your home sits inside the Ballardvale Historic District, keep in mind that any exterior change visible from the street — a full re-roof, new gutters, or exposed heat cable, for example — needs a Certificate of Appropriateness from the Ballardvale Historic District Commission before work starts; we check that as part of every free assessment. And clear gutters and downspouts matter too — a clogged gutter holds meltwater right where an ice dam already wants to form. See our seamless gutter installation page for the gutter side of it.