Last Updated on October 20, 2026 by Umar Farooq
Pervious concrete vs permeable pavers comes down to one question: does the rain go through the surface or around it? Pervious concrete is a single poured slab full of connected voids, so water passes through the slab itself. Permeable pavers are solid concrete units, and water passes through the stone-filled gaps between them. Both drain into a bed of open-graded stone. Delaware's 2022 planning figures put pervious concrete at $7 to $16 per square foot installed and permeable pavers at $9 to $30.
I opened a handful of explainers, a research summary and a state cost sheet to line these two up. Two of the three explainers come from companies selling something, so I note where a number is a claim. For the paver side on its own, see our permeable concrete pavers guide.
A poured sponge or a paved reservoir lid
The Water Environment Federation (WEF) sorts the terms like this. Permeable pavers are solid concrete or clay units with aggregate-filled joints. Pervious pavers are factory-made units that pass water through the unit. Porous pavers are grids filled with soil, sand or gravel. Pervious concrete is the poured version: it is made with little fine material, leaving voids of 15 to 25 percent.
The industry site perviouspavement.org gives the storage math. A 5 inch slab with 20 percent voids holds about 1 inch of rain in its voids, and about 3 inches when it sits on a 6 inch open-graded subbase. A permeable paver system has no slab voids, so its storage is all in the stone beneath. Our permeable paver base guide covers those layers.
| Pervious concrete | Permeable pavers | |
|---|---|---|
| Surface | One poured slab | Solid units with stone-filled joints |
| Water enters | Through the whole surface | Through the joints |
| Voids | 15 to 25% in the slab | Joint openings only |
| Installed (Delaware, 2022) | $7 to $16 per sq ft | $9 to $30 per sq ft |
| Fix a clogged spot | Drill holes or replace the slab | Replace the joint stone, or lift units |
What each costs, and what a quote leaves out
Delaware's DNREC planning sheet lists pervious concrete plus installation at $7 to $16 per square foot and permeable interlocking pavers plus installation at $9 to $30, in 2022 dollars. Removing the old pavement is extra, at $1 to $5. Those are planning estimates for a state yard-adaptation guide, not quotes.
Other sources blur the line. Fine Homebuilding gives $10 to $40 per square foot installed for permeable and standard pavers alike, and Hunker says permeable concrete pavers carry a 20 to 40 percent premium over standard concrete pavers. I could not open a cost source that breaks out pervious concrete for a single home driveway, so treat the Delaware gap as a direction, not a promise. Get three local quotes.
Clogging: only one of them can be topped up
Both systems clog. WEF says every type needs a maintenance program, and a Minnesota transportation research summary of a pervious concrete street found that organic debris, sand and grit clogged the pores. The pavement was vacuumed about twice a year and infiltration still declined over time. That was a street, not a driveway, but the mechanism is the same.
The difference is the fix. Delaware's sheet says that in extreme clogging, contractors can drill holes through the pavement or replace the stone between the pavers. A slab has no spare part; a joint does. (A paver driveway that has been topped up is a driveway that was never really clogged, just briefly annoyed.)
One more conflict. WEF says permeable pavers infiltrate less per square meter than the other two types and may need more area. A vendor page (Invisible Structures) puts both paving blocks and porous concrete at about 6.4 inches per hour, citing a New Jersey agency. Those two sources disagree, and the second one sells a competing product. I would not size a project on either figure.
Frost, salt and snow
Pervious concrete has a reputation for dying in winter. Perviouspavement.org says freeze-thaw resistance seems to depend on how saturated the voids are when the water freezes. Entrained air in the paste helps a lot, and where freezing moisture is likely it normally recommends a drainable base of 6 to 18 inches. Some North Carolina and Tennessee placements have lasted over 10 years. That is an industry site making its own case, so ask a local installer for pours in your climate.
For pavers, the rules in Delaware's sheet apply to both types: no sand for snow or ice treatment, and no storing plowed snow on the surface, because sediment clogs it. Delaware also says permeable pavements can last up to 40 years because they reduce freeze-thaw stress. It is a state planning claim, not a warranty.
Cheaper fixes first, then pick the one you can repair
Before paying for either, check whether the real problem is a downspout aimed at the patio. Our patio drainage guide covers slope and drains, and costs far less than a stone reservoir.
If you do need permeable paving, my opinion is simple: choose the one you can repair. A clogged slab means drilling or replacing the whole thing, while a clogged paver joint means swapping stone you can reach with a shop vacuum. That favors pavers for most homes, even at the higher price. Pervious concrete earns its place where a specialist crew pours a large area at once and the climate has been proven locally.
Whichever you pick, keep the plowed snow, the winter sand and the topsoil pile off it. Clogging is mostly about what you let walk onto the surface.
FAQ
Is pervious concrete the same as permeable pavers?
No. Pervious concrete is a poured slab with 15 to 25 percent voids that lets water through the slab. Permeable pavers are solid units, and the water goes through the stone-filled joints between them. Some sources use "pervious" loosely, so ask which one a quote means.
Which is cheaper, pervious concrete or permeable pavers?
In Delaware's 2022 planning figures, pervious concrete was $7 to $16 per square foot installed and permeable pavers $9 to $30. Local quotes vary, and old-pavement removal costs extra.
Does pervious concrete work in cold climates?
It can. Perviouspavement.org says entrained air and a 6 to 18 inch drainable base help, and some placements have lasted over 10 years. Performance depends on how saturated the voids are when freezing starts, so check local examples.
Can you fix clogged permeable pavement?
Yes, to a degree. On pavers, replace the stone between them. On pervious concrete, contractors can drill holes through it or replace the surface. See our is polymeric sand permeable guide for why ordinary joint sand is not a fix.
