Top-rated natural slate roofing installers and replacers.

Get matched with top natural slate roofing installers and replacers in Williamstown, NJ

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 Williamstown

Avatar for Lane Roofing & Exteriors
Lane Roofing & Exteriors
4.7(
34
)
Natural Slate Roofing - Install or Replace

Serving Williamstown, NJ and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1994

Free estimates

Warranties offered

"I used Lane Roofing to repair my flat roof and to replace and install roof shingles. Shawn came out to inspect my project and to give me an estimate was phenomenal. He knew exactly what I needed done for my repair. Thank you Shawn for your professionalism and expertise. Nicely done! 😊"
Roofing
Roofing
Response time5 hrs
Response rate100%
580 neighbors recently requested a quote
Avatar for AAA Construction Group LLC
AAA Construction Group LLC
5.0(
1
)
Natural Slate Roofing - Install or Replace

Serving Williamstown, NJ and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

At AAA Construction Group LLC, we take great pride in our experience, expertise, quality and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

After
Drywall & Plaster
Demolition
Damaged Insulation
Vacuum

+3

Response time9 hrs
5 neighbors recently requested a quote
Avatar for A2Z home remodeling llc
A2Z home remodeling llc
5.0(
29
)
Natural Slate Roofing - Install or Replace

Serving Williamstown, NJ and surrounding areas

Free estimates

Emergency services offered

Credit card accepted

"I found A2Z on Angie's list. If you've never found someone there, you can click 1-4 contractors for a job and they should all call you. A2Z was the only one that called and they called within an hour! It was actually a representative of the company, ya know like they have a legit business. It wasn't the same person that fixes stuff, and answers the phone, and schedules appointments etc. An assistant or office manager called me. She was very Friendly and professional. We scheduled an appointment for the very next day. Victor called me at said he was there the morning of the appointment. He was there early in the estimated arrival window too! Amazing! He found the issue quickly, which was a leaking window, not a roof leak, as the other guy from another "company"said. Victor was easy to work with, he showed up on time, he sent me a quote and the quote ended up being the price. He was reliable and answered my phone calls and texts. I tell you, that is unheard of in the contracting business. My tenant even said she had a good experience with him and he was pleasant. I totally recommend Victor and A2Z Home Remodeling!! Thanks so much, jesse"
Additional Photos
Additional Photos
Recommended by100%of homeowners
Jameson Roofing
4.8(
18
)
Natural Slate Roofing - Install or Replace

Serving Williamstown, NJ and surrounding areas

In business since 2013

Free estimates

Emergency services offered

"
Christmas Day we had a leak I called and he answered and came out the next day to repair my roof. The owner was professional and polite and made my roof a priority!  We joked about how santa ruined my roof! I was amazed how fast the repair took and how  quick he came out over a holiday. We are on a fixed income and procrastinating to get our roof redone. I definitely called the right company because they made it way more affordable than we anticipated.

"
.
.
.
.
.

+8

Recommended by93%of homeowners
Avatar for J Cwanger Inc.
J Cwanger Inc.
4.8(
46
)
Natural Slate Roofing - Install or Replace

Serving Williamstown, NJ and surrounding areas

In business since 1952

Free estimates

Warranties offered

"Amazing!! They only use the top quality material and stand behind their work. I have referred all my friends and neighbors to them. Everyone I know has the same experience. Would not trust anyone else!!"
GAF Pewter Grey shingles and Mastic Board and Batten and Mastic Carvedwood in the color Deep Granite.
Before we started the transformation.
Additional Photos
Additional Photos
Additional Photos

+7

Response time7 hrs
Response rate100%
1 neighbors recently requested a quote
Avatar for Alternative Seamless Gutters Co
Alternative Seamless Gutters Co
4.7(
170
)
Natural Slate Roofing - Install or Replace

Serving Williamstown, NJ and surrounding areas

In business since 2005

Free estimates

Emergency services offered

"It went very well.  I received two other estimates - one of which was to replace my gutters.  Ivan said they just needed a cleaning.  And he was right.  Got the job done, gutters are working just fine, and I saved a lot of money.  Thank you!
"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+26

Recommended by98%of homeowners
Avatar for Home Genius Exteriors
Home Genius Exteriors
4.7(
188
)
Natural Slate Roofing - Install or Replace

Serving Williamstown, NJ and surrounding areas

In business since 2018

Free estimates

Emergency services offered

"Josh was amazing! I cannot say enough good things about my experience with this crew. They provided the install team worked hard, paid great attention to detail. The final result looks stunning. If you need roof work done right, do not hesitate to hire them!"
Precision Fit Gutters
James Hardie Fiber Cement Siding
CertainTeed Siding
ProVia Doors
Union Corrugating Metal Roofing

+104

Recommended by55%of homeowners
...
Showing 1-10 of 189
FAQs for natural slate roofing installation and replacement projects in Williamstown, NJ

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 Williamstown, NJ 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.