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Top-Rated Natural slate roofing installers and replacers in Merrimac - Updated Nov 2026

Avatar for All Under One Roof
All Under One Roof
4.7(
131
)
Natural Slate Roofing - Install or Replace

Serving Merrimac, MA and surrounding areas

Approved

In business since 1974

Free estimates

Warranties offered

"All Under One Roof recently replaced my roof on a 3-story, 200+ year old Federal in Newburyport. It was a big job that entailed removing 3 layers of rolled roofing/asphalt shingles; removing original skylight & taking down old dormant chimney to roof line and roofing over both; installing ½ “ plywood and asphalt shingles over new roof. I can’t say enough good things about All Under One Roof. They had a great crew and did a fantastic job. In fact, my neighbor across the street who had a birds eye view of work in progress, then hired them to replace his roof. John Lanzafame, the company’s owner, is a jewel. He’s very professional, responsible and communicative – a “take charge” guy in the best meaning possible. I was completely comfortable and confident that I was in good hands, and did not have to worry about micro managing the work. I should also point out that All Under One Roof began work on date scheduled (a month in advance) and completed the job (start to finish) in short order. I highly recommend All Under One Roof. Have dealt with various contractors for numerous issues over the years as I own several rental properties, and this has been my most positive experience by far. Kathy Quill"
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+26

Response time6 hrs
1 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for REFINED HOME SERVICES
REFINED HOME SERVICES
4.9(
9
)
Natural Slate Roofing - Install or Replace

Serving Merrimac, MA and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

Refined Home Services is a fourth-generation roofing company based in Kingston, NH. We specialize in high-quality roof replacement, roof installation, and roof repair services. We offer a wide range of exterior renovation services, from installing roofs, windows, doors, siding, and decks to essential home services. We guarantee customer satisfaction, quality products, and honest prices. Our professionals are fully licensed, insured, and certified in the latest energy-efficiency products and techniques. Since 2016, our locally-owned business has been proudly serving homeowners and businesses in New Hampshire, Massachusetts, and Maine.\n

Exterior Renovation
Asphalt Shingle Roof
Roof Replacement
Exterior Renovation
Exterior Renovation

+7

15 neighbors recently requested a quote
Recommended by22%of homeowners
Avatar for Legacy Roofing
Legacy Roofing
5.0(
29
)
Natural Slate Roofing - Install or Replace

Serving Merrimac, MA and surrounding areas

In business since 2018

Free estimates

Emergency services offered

"Lifetime Roofing replaced my asphalt shingle roof. Kyle did an excellent job answering all my questions and following through what proved to be a complex job. Their work was first rate and I would definitely use them again."
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+7

Recommended by100%of homeowners
Avatar for Robert Evans Jr. Contracting
Robert Evans Jr. Contracting
4.9(
61
)
Natural Slate Roofing - Install or Replace

Serving Merrimac, MA and surrounding areas

In business since 1992

Free estimates

Emergency services offered

"Robert Evan's contracting did an amazing job replacing my rubber roof. Great communication and excellent crew of workers. My project was completed fast and sufficiently. Highly recommend calling this company if you need roofing"
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Certainteed Grand Manor Lifetime Shingles
.
.
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+3

Recommended by100%of homeowners
Marquis Roofing
4.8(
30
)
Natural Slate Roofing - Install or Replace

Serving Merrimac, MA and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"Marquis Roofing did a fantastic job on our roof. The job was completed in one day. Tom Marquis's crew was professional, highly qualified and courteous. Once completed, the job site was completely cleaned of any building material and nails. I would absolutely hire Marquis Roofing again should I ever need another roof job done."
beautiful but tricky
beautiful but tricky
beautiful but tricky
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+104

Recommended by100%of homeowners
Avatar for NMTI General Contractors, Inc.
NMTI General Contractors, Inc.
4.8(
40
)
Natural Slate Roofing - Install or Replace

Serving Merrimac, MA and surrounding areas

In business since 1998

Free estimates

Emergency services offered

"These guys are fantastic! This is the second time I have used them and both experiences were excellent. Last year we had a major leak in a slanted part of our rubber roof. Fixed perfectly. No leaks again. This year we had other parts of our roof leaking (1870 house. Lots of roof pitches and types) they identified the issues, replaced two small roof areas on bays areas, replaced all the broken slate tiles and replaced very old and non-functional down spouts. Ramon and Wilson are kind, conscientious and very reasonable. Their services are highly recommended!!!!"
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+119

Response time5 hrs
Response rate100%
Recommended by97%of homeowners
Avatar for diamond towers llc
diamond towers llc
5.0(
14
)
Natural Slate Roofing - Install or Replace

Serving Merrimac, MA and surrounding areas

In business since 1990

Free estimates

Emergency services offered

"I recently had my roof replaced by Diamond Towers LLC, and I couldn't be more satisfied with the results. From the initial consultation to the final inspection, their team was professional, punctual, and highly skilled. They took the time to explain every step of the process and ensured that all my concerns were addressed. The quality of their work is outstanding, and my new roof looks fantastic. I highly recommend Diamond Towers LLC for anyone in need of roofing services. They truly exceeded my expectations!"
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Recommended by100%of homeowners
Avatar for Pellegrino Construction
Pellegrino Construction
4.9(
27
)
Natural Slate Roofing - Install or Replace

Serving Merrimac, MA and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"The roof was in line with everybody else's price. It may have been a little bit more expensive but we liked dealing with the guy. They were super clean, they knew we had pets so they were aware of  the nails and such so the ones that got away were like about 3 and they were quick. They were really professional and I had a really god experience with them."
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+6

Recommended by96%of homeowners
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FAQs for natural slate roofing installation and replacement projects in Merrimac, MA

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 Merrimac, MA 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.