Top-rated natural slate roofing installers and replacers.

Get matched with top natural slate roofing installers and replacers in Islip, NY

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Natural slate roofing installers and replacers in Islip

Avatar for Four Seasons Roofing
Four Seasons Roofing
4.9(
120
)

Serving Islip, 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
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+19

Response time2 days
12 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for JI ROOFING & EXTERIORS CORP
JI ROOFING & EXTERIORS CORP
4.9(
87
)

Serving Islip, NY and surrounding areas

Approved

In business since 2012

Free estimates

Warranties offered

"Iâ m not easily wowedâ ¦ but WoW!!!These guys are professionals who are on Point! They showed up on time, completed the work as specified, and cleaned up everything. Honestly, if you need your roof replaced, Jacob is you man and point of contact. My roof is perfect! The best experience I have ever had getting my roof replaced!!! Not a single nail left behindâ ¦ no roofing to pick up or anything. Just a beautiful roof and chimney to admire for many many years! Thank you Jacob! You and your crew represent the Best of the Best!!! I highly recommend this business!!! If you need a roofâ ¦ can Jacob todayâ ¦"
Termination
Work Completed
New Roof
Rip existence Roof
Roof Installed

+81

Response time7 hrs
Response rate96%
Recommended by94%of homeowners
Avatar for Royal Roofing & Siding
Royal Roofing & Siding
4.9(
96
)

Serving Islip, NY and surrounding areas

Approved

Super Service Award Winner

In business since 1993

Free estimates

Emergency services offered

"This was a large job which required removal of the old roof - multiple layers of asphalt shingle and cedar shake down to rafters. The house is a large old Victorian with multiple angles and outcroppings, and very steep. There was also a one car garage. As promised, Royal arrived on day 1 - a Monday in 12 degree weather - with 3 dump trucks, several other trucks with men and equipment and over 30 workers. They swarmed over the house and by 10 AM the roof was stripped to the rafters and by the end of the day new plywood, underlayment and shingles had been installed on more than 3/4 of the roof. All work was completed in 4 days. Every night the property was thoroughly cleaned up. Progress was provided during the entire job by sending photos taken with a drone - terrific! Overall we were impressed and pleased with the work and the fact that it truly took 4 days. We had seen other jobs in the neighborhood take 3 weeks or more to complete. You pay for this kind of service - it is not cheap - but it is totally worth it. In addition, all of the workers and the project managers are very professional and attentive to your needs. I'll never have to use them again for this job, but I would recommend them in a heartbeat if you need a roof, gutters etc."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+41

Response time1 day
Response rate93%
19 neighbors recently requested a quote
Avatar for Brothers Aluminum Corp
Brothers Aluminum Corp
4.7(
158
)

Serving Islip, NY and surrounding areas

Approved

In business since 1980

Free estimates

Warranties offered

"I cannot thank Paul specifically for putting up with me! From the beginning I had a vision along with a number of pics from Pinterest of what I wanted my house to look like. For starters my home was covered in old stucco and a lot of rotted wood underneath which was a messy job to remove. His team actually not only replaced all the damage but even removed my front living room window, reframed and replaced, as well as sheet rocked, spackled and painted the inside seamlessly. Paul stated the entire process would take 2-3 weeks. Well not only did this transformation complete in just under two weeks but either Paul himself or someone from his team stopped by daily to check on the job. Any questions or concerns were answered immediately and his crew were an absolute pleasure to deal with. I can sincerely recommend Brothers Aluminum to anyone looking to have any construction done to their home!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+16

Response time1 day
18 neighbors recently requested a quote
Recommended by91%of homeowners
Express Way Roofing and Chimney, Inc.
4.8(
211
)

Serving Islip, NY and surrounding areas

Approved

In business since 2010

Free estimates

Credit card accepted

"Highly recommend from Express Way Roofing. They sent a professional team to measure for the replacement of my skylight and explained the complete installation process. When the skylight arrived they prepped the areas inside and outside my home with drop cloths to ensure job cleanliness. After rebuilding the curb the skylight was installed and sealed. Excellent service! And I love my new skylight."
22 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Power Home Remodeling
Power Home Remodeling
4.5(
228
)

Serving Islip, NY and surrounding areas

Approved (Corporate)

In business since 1992

Free estimates

Warranties offered

"Noah and his crew were super clean and efficent, covered all working areas. Were super careful in there prep, making sure nothing got damaged. Replaced 11 windows. They had a crew of five people who each had a specific task. Finished whole project in one day. Windows look great and were installed perfectly. Finish work was fantastic. "
A Makeover to Match
Full Home Remodel - Siding, Windows, and a Roofing system
A Makeover to Match
Full Home Remodel - Siding, Windows, and a Roofing system
A Makeover to Match

+32

18 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for JAGG Roofing, Siding and Windows
JAGG Roofing, Siding and Windows
5.0(
8
)

Serving Islip, NY and surrounding areas

Approved

In business since 2025

Free estimates

Warranties offered

"Jake and his crew did a great job, I was adding solar panels to my roof and wanted new shingles and plywood to support the installation. I called several companies and found JAGG to offer the best price. I was very happy with the work, one day, full crew everything done. very impressed with the cleanup, not a nail to be found. LI Solar even asked for there information!! If you need Roofing , siding or Windows give JAGG a call. Excellent, 5 star work!!"
34 neighbors recently requested a quote
Avatar for Exterior Team Home Services, Inc.
Exterior Team Home Services, Inc.
5.0(
22
)

Serving Islip, NY and surrounding areas

Approved

In business since 2016

Free estimates

Warranties offered

"Professional, responsive, great communication, fair price. Ronald and his team did an amazing job replacing my entire roof. The team showed up early and started work right away. The job was completed in two days, I was very pleased with the new roof and the clean up after job completion. I would recommend them to all my friends, family and anyone who needs a roof. Thank you!"
Roof in process
Roof done
Roof in process
Job done in Ronkonkoma
Job done

+1

Response time4 hrs
Recommended by95%of homeowners
Showing 1-10 of 11
FAQs for natural slate roofing installation and replacement projects in Islip, 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 Islip, 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.