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

Avatar for CARON ROOFING & CONSTRUCTION
CARON ROOFING & CONSTRUCTION
4.5(
85
)
Natural Slate Roofing - Install or Replace

Serving Biddeford, ME and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"Caron roofing responded promptly to provide estimate. Estimate compared to 3 other roofing companies was most clear and detailed with itemized costs. Owner promptly responded to questions on items that I had. Owner prompt on scheduling, and roofers arrived on the day that they had scheduled. Roofers were on site at 7:30 and including removing a foot of snow from the roof and garage roof, were done by 4:15 the same day. This roofing job included replacing 4 skylights. Job site was well protected, job site was cleaned 100%, the project supervisor was very communicative. I observed the entire job and the 12 roofing laborers did not skip any steps or cut any corners. They were very attentive to all areas that required flashing including around the skylights, chimney, and valleys. Fair, Honest, Detailed, Clean Work Site, Safety Conscious, Respectful of my property, Respectful of my needs. I would highly recommend as they are straightforward and no games around product and pricing. Highly recommend!"
Tear roof. Install lifetime Architectural shingles
Tear off install lifetime architectural shingles
Install all grace ice and water shield and certain teed shingles
Additional Photos
Additional Photos

+2

3 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Atsalis Enterprises
Atsalis Enterprises
5.0(
12
)
Natural Slate Roofing - Install or Replace

Serving Biddeford, ME and surrounding areas

Approved

In business since 2011

Free estimates

Credit card accepted

"Installed new clapboards after removing broken ones. Reworked gutters to function better; installed gutter guards also. Installed new porch lights, custom fitting to shingle shacks so as to not allow leakage into junction box behind the lights. He is an arborist as well as a fine carpenter and technician. He took off the top 25 feet of a damaged pine tree safely and professionally. He will be back to install tongue and groove inside sheathing in a custom built shed. Excellent craftsperson! Very knowledgeable about a variety of building and renovation processes."
Deck renovation
Deck renovation
Deck renovation
Deck renovation
Deck renovation

+3

Response time3 days
3 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Bold Coast Exteriors
Bold Coast Exteriors
4.0(
4
)
Natural Slate Roofing - Install or Replace

Serving Biddeford, ME and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"Derek from Boldcoast Exteriors worked patiently with my wife to pick the perfect color roof. Everyone loves it. He was always available to answer questions. Once decided, the work was done quickly and meticulously. We are very happy with this company and plan to use them for future projects."
Roofing
New to Angi
Natural Slate Roofing - Install or Replace

Serving Biddeford, ME and surrounding areas

Approved

Experienced Roofer, siding expert , crews on demand, capable of building decks, replacing windows and doors and doing full construction builds in any exterior remodeling. Snow, ice dam removal, leak mitigation, and repair as well as roof shoveling in the winter.\n\nAll jobs commercial/ residential/industrial\n\nFully licensed and insured

2 neighbors recently requested a quote
Avatar for True North Roofing
True North Roofing
5.0(
9
)
Natural Slate Roofing - Install or Replace

Serving Biddeford, ME and surrounding areas

In business since 2022

Free estimates

Emergency services offered

"I would definitely recommend Alec with Spartan Roofing. They gave us the best price and most expedient service. He was very communicative throughout the entire process. It was a pleasure doing business with Spartan!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+35

Response time2 days
Recommended by100%of homeowners
Avatar for Mooers (than just) Home Improvements
Mooers (than just) Home Improvements
4.8(
45
)
Natural Slate Roofing - Install or Replace

Serving Biddeford, ME and surrounding areas

In business since 2017

Free estimates

Emergency services offered

"They were excellent. They showed up on time, performed the work courteously, efficiently, and professionally. Not only did they strip the roof, they also replaced the plywood before re-shingling. They flashed where necessary and installed the drip edge. Most surprising to me was the quality of the cleanup. I am yet to find a single nail left behind despite the snow we had on the ground. I liked them so much that I will be bringing them back in the spring to insulate and install vinyl siding!"
Deck Project
Sun Room
Side Deck/Stairs
Garage
siding

+221

Response time6 days
Recommended by100%of homeowners
Avatar for ROOF MASTERS
ROOF MASTERS
4.8(
301
)
Natural Slate Roofing - Install or Replace

Serving Biddeford, ME and surrounding areas

In business since 1998

Free estimates

Credit card accepted

"It was all right. Competitive quote, but then $2500 in additional costs were added on discovery of former cedar shingle roof under the existing asphalt shingles. Understandable. Small leak in previous roof was fixed; all dry through the winter. BUT: Removal of old roof was VERY messy. Crew did not tarp off areas below well enough; we were removing nails from our lawn and driveway for MONTHS afterwards, and even lost a tire to an errant nail. Siding and deck were scuffed and dinged from falling materials, with only some cleanup. Gutters were left filled with grit and debris, despite numerous reminders to clean them. Crew (from away) worked very hard, came back to clean up (mostly), and were done in two days, including some work after dark. Still, due to the mess, would not recommend for jobs requiring a white-glove touch like historic properties or homes with new paint jobs."
New Lifetime shingle installed Lewiston Maine
New Lifetime Shingle installed Portland Maine
New Lifetime Shingle installed Lewiston Maine
New Lifetime Shingle installed Raymond Maine
New Lifetime Shingle installed Litchfield Maine When it Rains We Shine! ๐ŸŒจโ˜€๏ธ๐Ÿ˜Ž

+106

Recommended by78%of homeowners
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FAQs for natural slate roofing installation and replacement projects in Biddeford, ME

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.ย 

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. Itโ€™s fire-resistant, energy-efficient, and often boosts resale value.ย 

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.ย 

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 tagโ€”or extra roof weightโ€”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.ย 

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 termโ€”or want a standout selling pointโ€”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 stoneโ€™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 Biddeford, ME homeownersโ€™ 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.