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Find Natural slate roofing installers and replacers in Alton Bay

Roofing
New to Angi
Natural Slate Roofing - Install or Replace

Serving Alton Bay, NH and surrounding areas

Approved

Experienced Roofer, siding expert , crews on demand, capable of building decks, replacing windows and doors and doing full construction builds in any exterior remodeling. Snow, ice dam removal, leak mitigation, and repair as well as roof shoveling in the winter.\n\nAll jobs commercial/ residential/industrial\n\nFully licensed and insured

2 neighbors recently requested a quote
Avatar for F.B.I. Contracting LLC
F.B.I. Contracting LLC
4.9(
52
)
Natural Slate Roofing - Install or Replace

Serving Alton Bay, NH and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"Frank and Nick did an excellent job replacing a window, installing snow guards, and completed roof repairs to make the house weathertight for me. They showed up when they said, worked very efficiently and got everything done quickly. Pricing is very fair and quality workmanship. I have used F.B.I. a couple times now and know I will use them for future projects."
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Recommended by100%of homeowners
Eastern Construction Co
4.2(
85
)
Natural Slate Roofing - Install or Replace

Serving Alton Bay, NH and surrounding areas

In business since 1962

Free estimates

Credit card accepted

"I needed them to get the job done by the 15th (or it was going to run into other very important things I had going on, so had them scheduled to start the job 4 days before this (in case they needed to rrepalce the roof boards with plywood). Well (because of another job they had) they showed-up on the 14th. This did cause me a headache as the job ran to the 16th. I was at the home doing other work when they started the job and I kept an eye on their work. When stripping the roof (of both the shingles and the wood boards, a lot of this rubble filled-up the brand-new soffet vent boxes I had built -my home did not have soffets/soffet vents or a ridge vent before I started my renovations). After stripping and dropping the chimney, one of the younger workers on the roof started to plywood the roof and I noticed he was installing the plywood over the top of the soffet vent (as they should), but without cleaning all the rubble out of them! This would mean the roof/attic would not vent propery (the air would not be able to go through these vents and up to the ridge vent (thus negating all my work of installing soffet vents and them installing a roof vent). I brought this to the attention of the younger worker on the roof (who's attitude was like, 'oh, ya'); Either he didn't know the importance of making sure the roof vented properly -which is unacceptable for a roofer- or he didn't care. I brought up my shop-vac and stood there while he vacuumed all the rubble out of the portion of the soffet he just covered (I had to go to work eventually and left the crew my shop-vac in the hopes they would vacuum out the rest as they went along -the older guy who ran the crew from the ground completely understood my concern about the rubble in the soffet vent and assured me the rest would be cleaned-out before they put the plywood over it (I do believe this was done because he was not too happy with the younger guy up on the roof for overlooking this -or getting caught overlooking this). The price was good for the work done (about mid-range in the quotes from other companies I had come by and look at the job -all from Angie's List). The job was completed in two days (so once stared, they moved pretty fast), and from what I watched them do: Installing about half the plywood, some of the the ice/water shield, shingles, etc, and the way it looks completed, it appears to be a solid job (and I've had no leaks to this point). And to their credit, they did comply with my on-job request to drop-in the plastic vents that run between the rafters (and connect the soffets to the ridge vent) on one half of the roof before they put the plywood down (this added about 15-20 min to the overall job -I could get these vents in on the other half of the roof myself from the attic). However, the fact that I had to catch the rubble in the soffets and that they didn't show-up when scheduled (and that I'm still chasing them down for a copy of the final invoice), I will not go with them when it's time to do the other side of the roof...or perhaps I will, if I can take the day of from work and 'supervise' the job"
Recommended by86%of homeowners
Avatar for Sentry Roofing NH
Sentry Roofing NH
4.4(
25
)
Natural Slate Roofing - Install or Replace

Serving Alton Bay, NH and surrounding areas

In business since 2007

Free estimates

Emergency services offered

"I called Paul Modzeleski on a Friday. He came by Monday and gave me an estimate after about 30 minutes of measuring, discussing and calculating. I gave him the go-ahead that night, knowing that he had an opening two days later. (I did not seek estimates elsewhere as a lower estimate would not have particularly interested me; they are not primarily marketing on price.) The shingles and other GAF products were delivered to my driveway by the wholesaler (Heritage Wholesale) on Tuesday, the day before the job. Without my asking, the wholesale delivery man / forklift operator volunteered that Sentry was a great crew.
They got to my house at 8AM Wednesday with a crew of 6, soon augmented to 8. This manpower and their equipment (including a gas-powered hoist) proved enough to do the job the same day, which is a plus when rain threatens later, as it did. They put down tarps, stripped everything off, and put up a new roof with ridge vents and working around skylights. Squashing of foundation plants was minimal and I don't think could have been less (only dying bulb foliage, and a bush that was already brittle and half-dead and slated for replacement, were damaged).
Their crew leader/foreman was knowledgeable and friendly. I was using a pair of binoculars to scan the roof; I pointed out to the foreman a small crease in one of the shingles, which he had a man replace quickly, and without any disagreeableness. They did a very thorough job cleaning up as the job progressed, and at the end of the job, including wheeling around a magnet to pick up nails. 
I am very satisfied and have already recommended them to 2 other couples who, prompted by my news, said they were looking into a roof.
"
Recommended by90%of homeowners
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FAQs for natural slate roofing installation and replacement projects in Alton Bay, NH

A slate roof features thin tiles of natural stone installed over a solid deck and underlayment. Formed under intense heat and pressure, slate is exceptionally durable and delivers a distinctive, high-end look. Because the material weighs far more than asphalt, most homes need added structural support before installation. 

While upfront costs are higher and routine inspections are a must, many homeowners choose slate for its unmatched longevity and curb appeal.

Slate stands out for its 50- to 200-year life span, low maintenance, and classic aesthetic. It’s fire-resistant, energy-efficient, and often boosts resale value. 

On the flip side, slate runs far more per square foot than asphalt, weighs up to four times as much, and demands a contractor who specializes in the material. Tiles can crack on impact, and repairs cost more because the work is slow and precise. If your budget and structure can handle it, slate delivers top-tier performance for generations.

Natural and synthetic slate aim for a premium, stone-like appearance, whereas asphalt focuses on affordability. Real slate runs $10 to $30 per square foot installed and lasts up to 200 years; synthetic slate costs $10 to $15 and tops out at 50 to 100 years. 

Standard asphalt averages $3 to $8 per square foot and needs replacement every 20 to 30 years. If you want the slate look without the full price tag—or extra roof weight—synthetic is a solid middle ground.

With routine inspections and prompt repairs, a natural slate roof can last well beyond 100 years; some hard-slate installations reach the 200-year mark. Soft slate falls in the 50- to 125-year range, and synthetic products last 50 to 100 years. 

Remember, flashing, fasteners, and the underlying structure may need attention sooner than the stone itself. Severe hail or fallen limbs can also shorten life span, so schedule periodic checkups with a slate-qualified roofer.

If you plan to stay in your home long term—or want a standout selling point—slate delivers strong value. Although installation costs are high, owners often recoup 60% to 70% at resale and enjoy lower replacement cycles than asphalt. The stone’s durability, energy efficiency, and timeless curb appeal also appeal to eco-conscious buyers because fewer roofs end up in landfills. Just be sure your framing can handle the weight and that you budget for occasional specialty repairs.

Skip the DIY climb if you have a slate roof. Slate may be tough against the weather, but a single misplaced step can crack a tile and create a leak path. The surface also turns slick when wet, upping the risk of injury. Professional crews use staging and hook ladders that spread weight across multiple slates, protecting both the roof and the worker. To inspect or repair slate, call a roofer who specializes in the material.

The Alton Bay, NH homeowners’ guide to natural slate roofing installations and replacements

From average costs to expert advice, get all the answers you need to get your job done.