A front stoop takes a beating that most of the house never sees. It is exposed on every side, it collects water, it gets salted every winter, and on many older Long Island homes it was built quickly decades ago. Sooner or later it starts to look rough, and the question becomes whether a resurface will do or whether it needs to come out.
This guide walks through what the different kinds of damage usually mean. It is written for owners of older houses in Centereach and the rest of Middle Country, where a lot of homes still have their original front steps. For the work itself, see our page on stoop repair in Centereach.
Start with one question: is the stoop moving?
Before you look at the surface at all, check whether the stoop as a whole is staying put. Surface problems can be repaired. A stoop that is moving can't be fixed from the top.
Check these four things:
- The joint at the house. Look where the top landing meets the foundation or siding. A gap you can slide a coin into, especially if it has grown since last year, means the stoop is moving.
- Level and pitch. Lay a level on the landing. A slight pitch away from the door is normal and good. A tilt toward the house, or a twist from one side to the other, is not.
- The sides. Look at the cheek walls on each side. Cracks that start at the bottom and run diagonally upward often point to settlement under one corner.
- The door. If the storm door now scrapes the landing, the landing has risen or the door has dropped. Usually the stoop has moved.
NRMCA's guide to cracking concrete surfaces (CIP 4) lists settlement cracks as their own category and names improper subgrade preparation as one of the main construction causes of cracking. If the stoop is moving, skip ahead to the rebuild section.
Reading the surface
If the stoop is stable, the surface tells you the rest.
Scaling: flaking on the treads
Scaling is a thin layer of the surface flaking away, most often on the treads and landing. According to NRMCA's scaling guide (CIP 2), it comes from freeze-thaw cycles on saturated concrete. Deicers make it worse. So do a lack of entrained air, overworked finishing and poor curing when the concrete was first placed.
What it usually means:
- Light scaling that doesn't expose the stone is mostly cosmetic. NRMCA says minor scaling may not need repair at all.
- Moderate scaling that exposes the aggregate on part of the treads can often be resurfaced, if the concrete under it is sound.
- Severe or spreading scaling over the whole stoop suggests the concrete itself is weak. NRMCA notes that repairing slabs with excessive and progressing scaling may not be feasible.
Spalling: chunks breaking off
Spalls are deeper than scaling. A piece of the edge, the nosing or a corner breaks off, sometimes in a cone shape. Look closely at what's inside. Rust-colored staining or exposed metal often points to corroding steel or railing anchors pushing the concrete apart as they rust. A few spalls at the nosing can sometimes be patched. Spalls that keep appearing at every railing post usually mean the problem is inside the stoop.
Hairline cracks
Fine cracks with no displacement, where both sides are still level, are common in concrete. NRMCA says most random cracks that appear at an early age rarely affect structural integrity. Watch them. If one side of a crack drops below the other, that's movement, not cosmetics.
What may be hiding inside an older stoop
Many older stoops are not solid concrete all the way through. Depending on when and how they were built, the inside may be compacted fill, rubble, block, or a concrete shell over a hollow. Some were formed with wood that was left in place.
None of that is visible from outside, and you shouldn't assume what yours contains. The clues that something inside is failing:
- A hollow or drummy sound when you tap the treads with a hammer handle.
- Soft spots or cracks that radiate from the middle of the landing.
- Sinking that's worse in the center than at the edges.
- Water stains or dampness on the basement wall behind the stoop.
If you see these, an opening or core may be needed to know for sure. That is a judgment call for whoever does the work, and it is worth asking about before you agree to a resurface.
The decision, step by step
Use this as a rough guide, not a diagnosis:
- Is the stoop moving away from the house, tilting or sinking? If yes, plan on a rebuild or at least a repair of what's underneath. Resurfacing won't hold.
- Is it hollow-sounding or soft in the middle? If yes, find out what's inside before choosing a fix.
- Is the damage limited to the top surface? If yes, a bonded resurface is a real option. NRMCA notes the unsound surface must be removed first, and the repair will only be as strong as the base it bonds to.
- Are the steps uneven, steep or missing a proper landing? Even if the concrete is sound, an awkward layout may be the deciding factor for a rebuild.
- Is it mostly cosmetic and you're happy with the layout? Light scaling can wait, or be resurfaced when you're ready.
Two practical notes on resurfacing. NRMCA points out that repair material won't match the color of the original concrete. And because a resurface adds thickness, check that it won't create an uneven first or last step.
If it comes out: building it to today's rules
A rebuilt stoop is new construction, and new steps are generally held to the state residential code. A NY Department of State technical bulletin (TB-1005), written for the 2017 code, summarizes several requirements:
- Risers of no more than 8-1/4 inches, and treads at least 9 inches deep.
- A landing on each side of each exterior door, at least 36 inches in the direction of travel and at least as wide as the door.
- A handrail on at least one side of any flight with four or more risers, mounted 34 to 38 inches high.
- Guards where an open-sided landing or stair is more than 30 inches above the grade below.
The state code has been updated since that bulletin, so confirm the current numbers and whether a permit is needed with the Town of Brookhaven Building Division before work starts.
A rebuild is also the moment to fix the things that caused the old stoop to fail: a solid base, a pitch that sheds water away from the door, an isolation joint against the house, and air-entrained concrete for freeze-thaw exposure.
Related reading
A stoop that's settling is often a sign of what's happening below grade around the whole house. Why a remodel starts below grade explains what to check. If a fallen limb is what cracked your steps, see the order to document storm damage before you clean up. More about our home base is on the Centereach area page.
Not sure whether your stoop needs a resurface or a rebuild? Call JDG Concrete & Construction at (631) 672-1618 or request a quote, and we will come look at it in person.
Frequently asked questions
Can I just put a new layer of concrete over my old stoop?
Only if the stoop underneath is sound. NRMCA notes that a bonded resurfacing repair is only as strong as the surface it is bonded to, and that the unsound material has to be removed first. A resurface over a stoop that is settling or hollow will fail with it.
My stoop has pulled away from the house. Is that serious?
A gap that is growing usually means the stoop is moving, often from settlement of the soil or fill under it. That is a structural issue, not a surface one, and resurfacing will not fix it. Have it looked at before the gap lets water reach the foundation.
Do new steps have to meet code?
New construction is generally held to the state residential code for riser height, tread depth, landings and handrails. A NY Department of State bulletin for the 2017 code lists an 8-1/4 inch maximum riser and 9 inch minimum tread. Confirm current requirements with your building department.
Why does the surface of my stoop keep flaking every spring?
That is scaling. NRMCA links it to freeze-thaw cycles on saturated concrete, made worse by deicers, low air content or poor finishing and curing. Light scaling is mostly cosmetic. Progressing scaling across the treads may justify resurfacing or replacement.
