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Harlan & Sons RoofingEst. 1962 · Lancaster, PA

Licensed & Insured Roofing · Lancaster, PA

Finally, a Slate Roof That Protects Lancaster Homes for Generations

Harlan & Sons Roofing delivers expert slate installation and repair built to outlast every other roofing material.

Get a Free Estimate(717) 555-0132

About Harlan & Sons Roofing

Roofing Lancaster, PA Trusts

Slate roofing is one of the most durable and beautiful choices available to Lancaster, PA homeowners — a natural stone material that routinely lasts 75 to 150 years when properly installed and maintained. Lancaster's freeze-thaw winters, humid summers, and heavy spring rains are no match for quality slate, which resists moisture, mold, and temperature extremes better than virtually any other roofing material. At Harlan & Sons Roofing, our licensed and insured crew handles both full slate roof installations and targeted slate repairs, giving you a written estimate upfront and standing behind every project with a workmanship warranty.

Areas We Serve

Proudly serving homeowners across Lancaster, PA and the surrounding communities — local roofers backed by our workmanship guarantee.

(717) 555-0132

Common questions

Frequently Asked Questions

How long does a slate roof actually last?
A properly installed natural slate roof can last anywhere from 75 to 150 years depending on the slate variety — soft slate runs closer to 75–125 years, while hard slate can exceed 150 years. That longevity is what makes slate one of the best long-term investments in Lancaster roofing.
Is slate roofing worth the higher upfront cost?
Slate costs significantly more than asphalt shingles upfront — typically two to four times as much — but its lifespan means you may never replace your roof again. When you factor in the near-zero replacement cycle and low maintenance needs, many Lancaster homeowners find the total cost of ownership very competitive.
Can my home's structure support a slate roof?
Slate is heavy — roughly 700 to 1,500 pounds per square — so your home's framing must be assessed before installation. Harlan & Sons Roofing evaluates structural suitability during the inspection and estimate process so you know exactly what your home can support before any work begins.
How does slate hold up in Lancaster's climate?
Very well. Natural slate is virtually impervious to moisture and resists the freeze-thaw cycles that crack and curl lesser roofing materials. Lancaster's wet springs, icy winters, and hot summers are conditions slate has handled for centuries — it's why you still see original slate roofs on historic homes throughout the region.
Can individual slate tiles be repaired without replacing the whole roof?
Yes — one of slate's great advantages is that damaged or slipped tiles can often be replaced individually, preserving the rest of the roof. Harlan & Sons Roofing offers targeted slate repair so you don't pay for a full replacement when only a section needs attention.
What maintenance does a slate roof need?
Slate itself requires very little maintenance, but keeping the roof in top shape means periodically clearing debris from valleys and gutters, checking that flashings remain sealed, and replacing any cracked or slipped tiles promptly. An annual or biennial inspection by a qualified roofer helps catch small issues before they become expensive problems.
Free & No Obligation

A roof they’ll still trust in thirty years.

Tell us about your roof and a member of the Harlan & Sons Roofing team will get back to you with honest advice and a clear next step — no pressure, no obligation.

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