Serving Philadelphia County

Rowhouse Roof Replacement in Philadelphia, PA

Replacing the roof on an attached house, where the party walls, the neighbours and the street are as much of the job as the covering.

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Flat and low-slope rowhouse roofs
Parapet, scupper and drain repairs
Twins, slate and storm-wind damage
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Rowhouse Replacement

Rowhouse Roof Replacement: what it covers

Quick answer

A rowhouse roof replacement is a small roof with complicated edges. The covering is straightforward; the party walls, shared parapets, single outlet and street access are what make it a specialist job in Philadelphia. Call (833) 751-2102 and a local roofer will survey the roof and the access together.

Rowhouse Roof Replacement illustration for Philadelphia, PA

Attached houses are the normal house here. Multi-floor row homes are about 70% of the city's housing stock by one estimate from a Philadelphia architecture-and-design body, and roughly three quarters of those are more than fifty years old, so replacing one of these roofs is ordinary work with a particular set of constraints.

What makes it particular is that the roof does not end at your property. It terminates against walls shared with the houses on either side, water leaves through one outlet, and the only way to get material up and tear-off down may be the front of the house on a street with cars parked solid.

This page is about that job as a whole: the sequence, the neighbours, the permit and the staging. The technical build-up of the covering itself is covered on flat roof replacement, because many rowhouse roofs are also low-slope membrane roofs.

Service area: Philadelphia & Philadelphia County
Availability: Phones answered 24/7
Phone: (833) 751-2102

Warning signs

Signs you need rowhouse roof replacement

Keep the pavement and the front of the house clear while a roof is coming off. On an attached house there is no garden to absorb debris: material drops onto a public footway, and that is the single biggest hazard of this job for passers-by and for neighbours' children. Move cars and bins, keep windows shut on working days, and do not stand underneath to watch. On the roof, the parapet is a knee-high wall and not a barrier, and the adjoining roofs are someone else's structure. Direct any questions to (833) 751-2102 rather than calling up to the crew.

A roof that has been patched by several different people over the years
Leaks appearing on more than one side of the house in the same season
A neighbour's roof work that revealed the state of the shared parapet
Soft or dished areas across more than one bay of the deck
A single outlet that cannot keep up with ordinary heavy rain
Membrane upstands at the party walls finished low or lifting
A planned roof deck or extension that means the waterproofing has to be right first

Our process

How our rowhouse roof replacement visit works

Survey the roof and the access in one visit
The roofer measures the roof, probes the deck, takes a test cut and then works out how material and debris will move. On an attached house with no driveway and no rear access, that second question changes the programme as much as the first.
Settle the party-wall and neighbour questions
The upstands on both sides are shared details, and a crew may need to cross an adjoining roof. Telling the neighbours early, agreeing access and establishing who owns what avoids a stopped job later.
File the permit and check designation
Most roof replacements need a permit, filed by the contractor through Licenses and Inspections; the city operates an EZ permit with no plans and says most applications are processed in five business days. On a designated property, roof work visible from the public right-of-way may need Historical Commission review first.
Plan the street: skip, staging and hours
Where the dumpster sits, where material is stacked, how the pavement is kept usable and what hours the crew works are agreed before anything arrives. On narrow streets with parking on both sides this is a real constraint rather than a formality.
Tear off, inspect, rebuild
The old covering comes off to the deck, the L&I inspection for a minor permit happens once the old roofing is removed and the new material is on site, and nothing new is installed until it passes. Then decking repairs, the new build-up, the upstands at both party walls and the outlet detail.
Test, photograph and hand over the history
The drainage is flooded and watched, the finished details are photographed, and you get a record of what was found under the old roof. On an attached house that record is useful to the neighbours too.

What makes an attached roof different from a detached one?

Three things: the roof terminates against walls you share, water has one way out, and there is nowhere to put anything. The covering is the simple part. Contractor guidance for this housing type is explicit that the membrane termination at a party-wall parapet must be sealed so water does not migrate next door.

That shared termination is the detail that gets skimped on, because it is the part of the job that benefits the neighbour as much as the client. Doing it properly on both faces is what stops a new roof producing a leak in the house next door.

The single outlet is the second difference. A detached pitched roof sheds water off four edges; a parapeted rowhouse roof sends everything to one drain or scupper, so the replacement is the moment to get that outlet right. The roof drain and scupper repair page explains how those outlets behave.

Do I need to involve my neighbours?

Practically, yes. You are working on walls that are shared, the crew may need to cross their roof, and the noise and the skip affect them directly. Telling them early turns a potential dispute into a conversation, and sometimes into a shared job that costs both households less.

It also helps the diagnosis. Neighbours on either side often know the history of leaks along the block, which previous owner did what, and whether the parapet has been rebuilt before. On a continuous row that history is genuinely useful information.

Where the roof deck or terrace of one house overlooks another, or where an adjoining roof has to be crossed to reach yours, get the arrangement agreed before the dates are set. In the dense blocks of South Philadelphia and Queen Village that is normal practice rather than an imposition.

How is the street handled during the job?

By planning it. On a narrow street with parking on both sides, the skip position, the stacking of material and keeping the pavement passable all have to be worked out in advance, because there is no yard, no driveway and often no rear lane to fall back on.

Expect to be asked to move vehicles and to tell neighbours which days matter. Expect the roofer to ask about the width of the street, the parking rules on your block and whether anything overhead will interfere with a hoist.

This is a real cost driver rather than an inconvenience. Access, staging and dumpster placement on narrow streets are among the things our guide to what a new roof costs in Philadelphia names as moving the price of a job, which is why nothing is quoted before the street has been seen.

What about historic districts and the street-facing parapet?

On a property in a historic district or on the Philadelphia Register, roof work visible from the public right-of-way may need Historical Commission review before L&I issues the permit. Its guidance favours inconspicuous work, and flat roofs hidden behind a parapet are generally treated more simply.

So the usual position on a rowhouse is that the membrane behind the parapet is uncontroversial and anything that changes the appearance of the cornice or a visible slope is not. Confirm designation for the address first, because it determines the order of the whole programme.

Larger and commercial buildings can fall under different city rules again, and L&I answers for a specific address. Our guides on roof permits in Philadelphia and who can roof your house set out both the filing and the credentials to ask about.

Options

Types and options for rowhouse roof replacement

Mid-terrace house

Party walls on both sides, one outlet, access from the front only. The most constrained version and the most common, where everything depends on sequencing a small site properly.

End-of-row or corner house

One party wall and one exposed wall, which usually means more weather on the open side and sometimes a side access route. The exposed parapet takes more wind and rain than its neighbours and is often in worse condition.

Stepped and hillside rows

Where the street climbs, adjoining roofs sit at different levels, so a neighbour's parapet becomes a wall beside your roof. Access, ladder positions and where debris can be dropped all change, which is routine in the hillside blocks above the Schuylkill.

Philadelphia County

Why rowhouse roof replacement is different in Greater Philadelphia

The rowhouse belt is where this job lives. Continuous brick blocks in Fishtown and Kensington, Queen Village, South Philadelphia and around Girard and Passyunk Avenues are the typical addresses, with narrow streets and no off-street space the typical constraint.

Trinity houses and the tightest streets are a category of their own. The small, tall houses on the courts and alleys of Queen Village and Bella Vista leave almost no room to stage materials, so the sequence of delivery and removal matters more there than anywhere else in the city.

Attached stock continues outside the city line. Conshohocken, Chester, Upper Darby and parts of Camden all have rows with the same shared parapets and single outlets, with the permit coming from the borough, township, city or New Jersey municipality rather than Philadelphia L&I.

Skip the guesswork. Call for a straight answer.

Tell us what's happening and we'll tell you honestly whether it's a quick fix, and what rowhouse roof replacement should cost.

Call (833) 751-2102 Get a quote

Where we work

Rowhouse Roof Replacement across Philadelphia County

Not sure if you're covered? Check your ZIP code.

Flat Roof Replacement

Stripping and rebuilding a low-slope roof on a rowhouse, twin or loft conversion, with the drainage and parapet details redesigned rather than reused.

Parapet and Cornice Flashing

Sealing the upstands, copings and party-wall terminations where a Philadelphia rowhouse membrane meets masonry.

Roof Drain and Scupper Repair

Clearing, resealing and re-detailing the outlets that take water off a low-slope rowhouse roof.

Flat Roof Repair

Repairs to flat and very low-slope membrane roofs on Philadelphia rowhouses, twins and converted buildings, starting at the drainage path.

Guides

Read before you book

How Much Does a New Roof Cost in Philadelphia?

No public price list exists for roof work in Philadelphia, so this guide does not print a dollar figure.

Philadelphia Rowhouse Flat Roofs: How They Drain and Where They Fail

Most Philadelphia rowhouse roofs look flat but slope toward a drain, with a minimum fall of a quarter inch for every foot.

Do You Need a Roof Permit in Philadelphia?

Most roof replacements in Philadelphia need a permit, which the contractor usually files through L&I.

FAQ

Rowhouse Roof Replacement FAQs

Can two neighbours have their roofs done together?

It often works well, because the shared parapet is detailed once, access is set up once and the skip is shared. It needs both households to agree scope and timing, so it is worth raising early rather than once one job has started.

Who owns the parapet between the houses?

That depends on the deeds and it is worth checking rather than assuming. What a roofer can do is make both sides of the termination watertight and record what was done, which is the information both owners need if there is a question later.

How long will the roof be open?

A single rowhouse roof is usually a short job, dependent on the deck, the weather and the permit inspection falling between tear-off and the new covering. Dates are agreed after the survey rather than promised in advance of it.

Can I add a roof deck at the same time?

It is the sensible moment to think about it, because the waterproofing has to be designed for whatever sits on top, including how anything is fixed. It is also a bigger permit question than a covering replacement, so it is scoped separately.

What if the neighbour's roof is clearly failing too?

It is worth telling them, politely and early. Water in the head of a shared wall reaches both houses, and a new roof on your side will not stop a leak originating on theirs. A roofer can explain what was observed without putting you in the middle of it.

Is my roof flat or pitched? It is hard to tell from the street.

On most city rows it is low-slope behind a parapet, falling to a drain at a minimum of a quarter inch per foot according to the city's homeowner guide. Some houses have a pitched slate or shingle front with a flat roof behind, which means two details and one survey.