Fast, Reliable Roof Replacement & Installation Across Lansdowne
A full roof replacement on a Lansdowne twin home typically runs $12,000-$22,000 depending on materials and whether party-wall flashing coordination is needed; most Lansdowne homeowners get a written estimate within 24 hours and work started within the week. If you’re seeing water stains after your neighbor’s recent roof job, or if your century-old slate is shedding pieces onto the sidewalk below, call (855) 554-5116 - a live person answers, even at 10 PM on a Sunday.
We’ve been climbing Lansdowne roofs since 2016. From the steep Victorians along Lansdowne Avenue to the block-after-block of pre-WWI twins near the SEPTA station, we know what holds and what fails on borough housing stock that was built before modern underlayment even existed. Our shop is a short drive from 19050, which means when a February ice storm opens a leak over your dining room, our Emergency & Storm Damage - Lansdowne response means we’re not coming from three counties away. We’re local. We hire local crews. We train apprentices into journeymen who learn Lansdowne’s specific roof geometries - the shared ridges, the multiple brick chimneys, the dormers with original lead flashings - before they’re sent up on their own.
On a twin home on Union Avenue, we replaced an old asphalt shingle roof that had been layered over original slate. The shared ridge cap and party-wall flashing required careful coordination with the neighbor, who had no leaks afterward. We used GAF Timberline shingles and properly re-bedded the adjoining slate sections. That’s the kind of job that separates a roofer who knows Lansdowne from one who just has a GPS.
Why Ridgeline Roofing Co. of Philadelphia Is Lansdowne’s Preferred Roof Replacement & Installation Company
Lansdowne is not a shingle-volume market. It’s a slate-competency market. Because the borough developed almost entirely between 1890 and 1930, an unusually high proportion of its housing stock still carries original or once-replaced Pennsylvania slate roofing - far more than you’d find in Yeadon or Clifton Heights. Contractors who cannot source matching Pennsylvania blue-gray slate or properly re-bed slipped slates don’t last here. We do. Our Roof Replacement & Installation team includes journeymen specifically trained in slate repair and replacement, not just asphalt crews who dabble in older materials.
Our 90-Day Done Right Promise applies to every Lansdowne job: if it’s not right, we come back and make it right. No paperwork to file, no argument, no runaround. We’ve stood behind that promise for over 42 years. Phones are answered by a live person 24 hours a day, including the middle of a storm, so Lansdowne Roof Repair help is always a call away. Our technicians are background-checked, uniformed, and photo-document every inspection from your actual roof - not from the driveway with a scary speech.
We serve Lansdowne and the surrounding Delaware County inner-ring suburbs with the understanding that homeowners here are staying put. These are twenty-year houses, thirty-year houses. You want the job done once. The price we quote is the price you pay. No surprises on the invoice.
Our Roof Replacement & Installation Services in Lansdowne
Full Roof Replacement
A full tear-off and replacement on a Lansdowne Victorian or Edwardian single is a different job than on a 1990s subdivision home. The roof deck may be tongue-and-groove plank rather than plywood. The chimneys may need repointing before new flashing goes in. The dormers may have rotted sills hidden under old shingles. We price these jobs upfront, photograph every condition we find, and never substitute materials. A typical full replacement on a detached Lansdowne home runs $15,000-$28,000 for asphalt shingles, $25,000-$45,000 for slate, and $20,000-$35,000 for standing-seam metal.
Slate Roofing
This is where Lansdowne roofers prove themselves. Pennsylvania blue-gray slate - the specific variety used on most borough homes - is still quarried, and we maintain relationships with suppliers who stock it. A slate repair on a 1910 Lansdowne twin typically costs $800-$2,500 depending on how many slates need replacement and whether the battens underneath have degraded. Full slate replacement runs higher, but a properly maintained slate roof lasts 75-100 years versus 20-25 for asphalt. We re-bed slipped slates with proper copper nails and hook strips, never asphalt patch. We’ve turned down jobs where the homeowner wanted us to “just caulk it” - because we’d rather lose the work than have our name on a failure.
Metal Roofing
Standing-seam aluminum or steel is increasingly popular on Lansdowne’s detached Edwardians and large Victorians, especially where homeowners are tired of replacing asphalt every two decades. Metal sheds the leaf load from borough trees beautifully, and its 40-70 year lifespan matches the “stay forever” mindset we see in 19050. Typical installed cost: $18,000-$32,000 for a Lansdowne-sized home. We install metal systems from CertainTeed and Owens Corning with proper concealed fasteners - no exposed screws to back out in freeze-thaw.
Asphalt Shingle Replacement
When slate is beyond saving or the budget demands it, we install architectural-grade asphalt with the same attention to flashing detail we’d give a slate job. On Lansdowne twins, this means coordinating the new shingle termination at the party wall so your neighbor doesn’t inherit your leak. GAF Timberline HDZ and CertainTeed Landmark are our most-specified lines here. Typical range: $10,000-$18,000 for a twin, $14,000-$24,000 for a detached single. We never layer over old roofing - full tear-off, full inspection of the deck, full replacement of valley and step flashings.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Lansdowne
We are authorized installers for GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral - and we stock the Gutters & Accessories - Lansdowne and specific materials that speed Lansdowne jobs: Pennsylvania slate in standard and select grades, copper roll flashing for chimney work, lead substitute for dormer valleys where code allows, and the color-matched ridge caps that finish a twin-home replacement without the “two-tone” look that cheapens the streetscape. Because we keep common materials on hand, most Lansdowne repairs don’t wait on a distributor truck from King of Prussia. For specialty slate orders, we coordinate directly with quarries and typically see delivery within two weeks.
Common Roof Replacement & Installation Problems We See in Lansdowne Homes
- Slate repair with mismatched stone. A contractor patches slipped slates with Vermont green or imported black slate that doesn’t match Lansdowne’s distinctive Pennsylvania blue-gray. The patch fails cosmetically in months, structurally in years. We source matching stone or recommend full replacement if matching is impossible.
- Party-wall leaks after neighbor’s roof job. On Lansdowne’s dense twin blocks, one half-owner replaces their roof without addressing the shared ridge cap or step flashing geometry. The untouched neighbor sees water intrusion at the party wall within one winter. We coordinate with adjoining owners and detail the junction properly.
- Asphalt patch on slate. Someone tries to “seal” deteriorated slate with roofing cement. The asphalt traps moisture, accelerates freeze-thaw damage to the stone, and turns a $1,200 repair into a $22,000 replacement. We remove the patch, assess the slate, and do the job with proper materials.
- Chimney-adjacent leaks in winter. The Philadelphia region’s 15-25 freeze-thaw cycles per winter relentlessly attack lime mortar joints on Lansdowne’s Victorian-era brick chimneys and degrade lead or copper flashings. We see more interior leak calls from November through March tied to chimney conditions than from any other source. Our inspections include mortar assessment and flashing replacement where needed.
Pricing for Roof Replacement & Installation in Lansdowne, PA
| Service | Typical Range in 19050 |
|---|---|
| Slate repair (partial, twin home) | $800 - $2,500 |
| Asphalt shingle replacement (twin) | $10,000 - $18,000 |
| Asphalt shingle replacement (detached single) | $14,000 - $24,000 |
| Standing-seam metal (detached) | $18,000 - $32,000 |
| Full Pennsylvania slate replacement | $25,000 - $45,000 |
| Chimney flashing repair/replacement | $1,200 - $3,800 |
| Party-wall flashing coordination (add-on) | $800 - $1,500 |
These are real numbers for real Lansdowne jobs we’ve priced in the last eighteen months. What moves you within the range: roof pitch (steeper = more labor), layers to remove, deck condition, accessibility, and whether we’re matching existing slate or switching materials. We don’t bait-and-switch. The number on the estimate is the number on the invoice. Call (855) 554-5116 for a free, no-pressure written estimate - we’ll photograph what we find and explain what you actually need.
We Also Serve Cities Near Lansdowne
Our crews work throughout Delaware County’s inner-ring suburbs. If you’re in Yeadon, Collingdale, Darby, or Clifton Heights and need a roofer who understands pre-WWI housing stock, the same standards apply: background-checked technicians, photo-documented inspections, upfront pricing, and the 90-Day Done Right Promise. We also maintain full Roof Replacement & Installation coverage for homeowners across greater Philadelphia.
Serving Lansdowne, PA - Our Local Coverage Area
We’re based in the Lansdowne area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Roof Replacement & Installation in Lansdowne
The shared ridge cap and step flashing were likely cut or disturbed without proper termination detail on your side, or the new roof changed water shedding geometry at the party wall. This is the single most common “my neighbor’s roofer broke my house” call we get in Lansdowne. We inspect the junction, document the condition with photos, and repair the flashing properly - often for $1,200-$2,800 depending on how much of your side needs attention. Call (855) 554-5116; we’ll look at it this week.
Yes, in most cases. We source Pennsylvania blue-gray slate from the same quarries that supplied the original 19050 roofing market. If your slate is standard grade, we typically match within one shade variation. For select or unfading grades, we may need to order specifically. We’ll show you sample slates before ordering. If matching proves impossible, we’ll tell you honestly and discuss full replacement options. Call for a free slate assessment.
Yes. Chimney-adjacent interior leaks are Lansdowne’s most common winter roofing complaint, driven by freeze-thaw damage to lime mortar and lead flashings. We replace degraded lead step flashings, install proper cricket diverters behind wide chimneys, and repoint mortar joints as needed. We also offer lead-free alternatives where code or preference dictates. Every chimney gets photo-documented condition reporting before we quote.
If you’re staying in the home fifteen years or more and the structure can handle the weight, slate or standing-seam metal is the better long-term value despite higher upfront cost. Slate lasts 75-100 years; metal 40-70; asphalt 20-25. For a Lansdowne Edwardian, slate preserves architectural integrity and resale value. Asphalt makes sense if you’re selling within five years or if budget constraints are firm. We’ll inspect your rafters and deck to confirm they can support slate before recommending it. Free estimates include an honest repair-versus-replace discussion.
We always attempt coordination on twin jobs, and we strongly recommend it. If your neighbor is replacing their roof within the same season, we can align party-wall flashing details, ridge cap transitions, and warranty boundaries so neither side is compromised. If they’re not replacing soon, we install proper termination flashings that protect their side independently. We’ve handled dozens of these coordination conversations in 19050. The extra effort prevents the “neighbor leak” scenario that otherwise shows up in year two. Call (855) 554-5116 and we’ll discuss the approach.
Ready to get your Lansdowne roof done right? Call (855) 554-5116 now. A live person will answer, 24 hours a day. We’ll schedule your free, photo-documented inspection, deliver a written estimate with no surprises, and back every hour of labor with our 90-Day Done Right Promise. We’ve been serving Lansdowne and Delaware County since 2016. We’ll be here when you need us next, too.
Written by Ned Calloway, Owner at Ridgeline Roofing Co., serving Lansdowne and greater Philadelphia since 2016.