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Find Natural slate roofing installers and replacers in Sag Harbor

Avatar for Four Seasons Roofing
Four Seasons Roofing
4.6(
150
)

Serving Sag Harbor, NY and surrounding areas

Approved

In business since 1983

Free estimates

Emergency services offered

"We live in a house that has a flat roof. It's also down a hill so you look down at my roof as you approachmy home. That's why the appearance is so important to us. I had several "flat roof experts" come look at the job and walk away. Bill (the son) didn't even blink. He immediately gave us the confidence needed to know these guys are the real deal. They took two layers of tar & gravel roof off my house and installed a high tech membrane and insulation. They had to drop the old roof down to the ground then hump it up the stairs into the dumpster. They came with 9 guys, Antonio was the crew chief. The nicest guys. And when they left, my property looked clean, without a single shrub or flower out of place. And the new roof is beautiful. Bill (the father) was here to supervise and really added to our confidence and satisfaction. I don't write a lot of reviews, but these guys deserve the shout out."
GAF Preferred Contractor Badge
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+19

Response time2 days
7 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Royal Roofing & Siding Brooklyn
Royal Roofing & Siding Brooklyn
4.6(
145
)

Serving Sag Harbor, NY and surrounding areas

Approved

Super Service Award Winner

In business since 1993

Free estimates

Emergency services offered

"I recently had my shingle roof replaced by Royal Roofing & Siding, and I couldn’t be happier with the results. The team was professional, courteous, and completed the project on schedule. They took the time to explain the different shingle options and made sure everything was installed properly. The new roof looks fantastic and has completely improved the appearance of my home. The crew cleaned up thoroughly after the job, and the entire experience was stress-free. If you’re looking for a trustworthy roofing company for a shingle roof replacement, I highly recommend Royal Roofing & Siding."
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+41

Response time1 day
Response rate93%
18 neighbors recently requested a quote
Avatar for O'Brien Brothers Contracting, Inc.
O'Brien Brothers Contracting, Inc.
4.9(
209
)

Serving Sag Harbor, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Emergency services offered

"Ed and Mike are top notch! They are professional, hard working, and know what they're doing. They removed and replaced a cedar shake roof on our shed within 3 days and were courteous and friendly despite all of the rain that they worked through. They also installed a skylight that looks great. Ed and Mike know their craft well, I recommend them highly!!!"
Copper flashings
Plywood
G.A.F Architectural shingles
Only the best materials
Chimney flashing and roof repairs

+53

Response time9 hrs
Response rate94%
143 neighbors recently requested a quote
Avatar for JAGG Roofing, Siding and Windows
JAGG Roofing, Siding and Windows
5.0(
8
)

Serving Sag Harbor, NY and surrounding areas

Approved

In business since 2025

Free estimates

Warranties offered

"When I needed a new roof, I called Jake. He handled everything from beginning to end. I received an estimate immediately, and a crew was on site in no time. The crew was neat, fast, and thorough. When they were done, you couldn't even tell someone was there...other than the amazing looking new roof! I highly recommend Jake and his team!"
59 neighbors recently requested a quote
Avatar for Exterior Team Home Services, Inc.
Exterior Team Home Services, Inc.
4.6(
25
)

Serving Sag Harbor, NY and surrounding areas

Approved

In business since 2016

Free estimates

Warranties offered

"We have a two story home in Patchogue that had a leak that resulted in water in the walls of our attached garage. We could not locate the cause of the leak. We contacted Exterior Team Home Services who quickly located the source of the leak which required us to replace the front roofing of our house. It was done very quickly at a fair price. We were also impressed on how they made sure the old roofing material did not get into our front lawn or plants. They were meticulous in the way they treated our property. A job well done."
Roof in process
Roof done
Roof in process
Job done in Ronkonkoma
Job done

+1

Response time4 hrs
2 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Nation Unity Build Corp
Nation Unity Build Corp
3.5(
3
)

Serving Sag Harbor, NY and surrounding areas

Approved

In business since 2017

Free estimates

Small jobs welcome

With over 20 years experience serving the Hampton Bays area, Nation Unity Build Corp. is your solution for all your remodeling and home improvement needs. We pride ourselves on our extreme professionalism, timeliness and superior customer service on every job. Satisfaction guaranteed!

Mahogany Deck
Response time2 days
Recommended by66%of homeowners
Avatar for D & S Roofing Corp
D & S Roofing Corp
4.8(
174
)

Serving Sag Harbor, NY and surrounding areas

In business since 1939

Free estimates

Emergency services offered

"Excellent job Dominick the owner was on site to oversee the job. He was responsive to all our questions and concerns. He inspected the roof and showed us pictures of the damage. I also went up on the roof myself and saw the extensive damage to the T&G roof deck firsthand. They replaced all damaged T&G boards and installed the best shingle and storm guard available, GAF Timberline HDZ anti algae shingle & GAF StormGuard leak protection . They did an excellent job at a good price. You get what you pay for and we got the best! Thank you Dominick & the D&S roofing crew! We love our new roof No more Leaks!"
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+2

Recommended by98%of homeowners
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FAQs for natural slate roofing installation and replacement projects in Sag Harbor, NY

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 Sag Harbor, NY 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.