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Find Natural slate roofing installers and replacers in Mountlake Terrace

Avatar for Mr Roof, LLC
Mr Roof, LLC
4.50(
21
)

Angi Approved

In business since 2013

Free estimates

Emergency services offered

"I think they were very professional, I called for extiment and we given on right away. It was reasionable. They found an issue I didn't know was there replace boards. I very happy with the guys,"
29 neighbors recently requested a quote
Recommended by66%of homeowners
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Avatar for Forever Roofing
Forever Roofing
4.90(
52
)

Angi Approved

In business since 2008

Free estimates

Emergency services offered

"DO NOT EVER HIRE THIS COMPANY. 7 years ago they installed metal roofing on our new construction made with SIPS. Our contractor provided manufacturer installation instructions. Early work began fine and their process was signed off by our contractor. Then multiple crews came through, who apparently did not get the message. A metal roof on top of SIPS SHOULD HAVE LASTED 50 YEARS. NOW we're having to replace our roof at a greater cost than out-of-state college tuition. The new roofers are having to scrape rotted OSB from the foam insulation, completely negating the SIPS warranty and littering the neighborhood with the rotten debris. The analysis is that Forever Roofing (1) installed the Tiger Paw sheeting incorrectly and (2) did not bend the top of the metal panels up under the roof peak, both of which allowed water to enter. FURTHERMORE, after letting water in, they blocked off any egress at the bottom of the roof with wood blocks between the staves. Eventually water sat in there for years until the soffits started popping off. One of the Forever Roofing managers came by to take a look at the damage and essentially washed his hands of the business - no integrity for workmanship. RUN AWAY - "Forever" is an utter misnomer."
7 neighbors recently requested a quote
Recommended by94%of homeowners
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FAQs for natural slate roofing installation and replacement projects in Mountlake Terrace, WA

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 Mountlake Terrace, WA 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.

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