Porch Column & Post Repair in Rockville, MD

Porch posts rot from the bottom up. Water runs down the column, pools where it meets the deck or the concrete, and sits there. By the time the paint splits at the base, the bottom six inches are often gone while the top still looks perfect. NextDayJose repairs and replaces porch columns and posts across Rockville, Silver Spring, Potomac and Bethesda — locally-owned, licensed and insured, 13+ years in the DMV.

The first thing we establish is whether your column is holding the roof up or just standing next to it. That single answer changes the job completely, and it is why we look before we quote rather than after. Porch work often travels — a rotted post usually sits on a porch floor or steps that took the same water — so we check the stairs and the railing connections too, and we handle the same failure elsewhere on the house as wood rot repair.

Porch Column & Post Work We Do

• Rotted porch post replacement, structural and decorative
• Porch column base and bottom-section repair
• Temporary shoring so the roof stays supported
• Round and square column replacement, wood or composite
• Cellular PVC and fiberglass column wraps
• Post bases, standoffs and drainable footings
• Re-attaching railings and trim at the post
• Priming, caulking and paint-ready finishing

Structural Posts vs. Decorative Columns

A structural post carries the porch roof. A decorative column is a hollow wrap around a structural post, or a purely cosmetic element beside one. You can usually tell by tapping it — hollow fiberglass and PVC columns sound obviously empty — but not always, and getting it wrong is how porch roofs sag. We check what is actually carrying the load before anything comes out.

Replacing a structural post means shoring first: we set a temporary support under the beam, transfer the load, remove the rotted post, then set and fasten the new one and release the shoring. It is straightforward work when it is done in that order, and it is the part homeowners most often try to skip. If what you have is a decorative wrap over a sound post, the job is far smaller and we will tell you that rather than quote you for a structural repair you do not need.

Fixing Why the Post Rotted

Almost every rotted porch post we see failed at the bottom because it was sitting in water. Either it was set flat on concrete with no standoff, or the porch floor slopes back toward the house, or a downspout discharges next to it. Putting a new post in the identical spot without changing anything buys you the same repair again in a few years.

So we set new posts on a standoff base or a galvanized post base that lifts the end grain off the surface and lets it drain and dry, seal the end grain before it goes in, and where the porch floor is the problem we will say so. On posts set into the ground or into a footing, we use the same approach we take when setting a new post — drainage and a proper base matter more than the size of the concrete.

Porch Column Repair Cost in Silver Spring & Rockville, MD

Cost turns on whether the column is structural, how tall it is, and what the base looks like. All prices include labor:

*Prices are estimates for the Rockville, Silver Spring, Potomac, and greater DMV area. Final cost depends on materials and scope of work. Request a free estimate — we never charge for quotes.

Porches in Montgomery County Homes

The porch columns we replace around Rockville, Takoma Park, Kensington and Silver Spring are mostly paint-grade wood from the 1920s through the 1970s, and a lot of them are set directly on a concrete stoop with no standoff at all. That was normal practice then. It means the end grain has been wicking water out of the concrete for fifty years, which is why so many of them are perfect at eye level and hollow at the ankle.

The other thing we see constantly on sloped Potomac and North Bethesda lots is a porch slab that has settled back toward the house. Every rain now drains into the post bases instead of away from them. We will replace the posts either way, but we will point it out, because until the water goes somewhere else the new wood is on the same clock as the old wood. A clean-up with pressure washing before we paint is usually worth adding while the porch is already torn apart.

Porch Column FAQs — Rockville, Potomac & Silver Spring

Can you replace a porch column without the roof falling?

Yes, and it is routine. We set temporary shoring under the beam first so the load transfers off the column, then remove it, set the new post, fasten it and release the shoring. The roof is supported the entire time. What you should not do is knock a structural post out without shoring it — that is how porch roofs sag and how people get hurt.

How do I know if my porch column is structural or decorative?

Tap it. Hollow fiberglass and PVC columns sound empty, and many decorative columns are just wraps around a real post inside. But appearance is not reliable — some solid-looking wood columns carry the whole beam. We check what is actually bearing the load before we quote, because the two jobs are very different in price.

What does porch post replacement cost in Rockville?

A decorative column replacement usually runs $450 to $1,000. A structural post, including the temporary shoring, is typically $900 to $2,200 depending on height and access. If the rot is confined to the bottom few inches, a base repair is often $300 to $700. Quotes are free and we will tell you which category you are in.

Why did my porch post rot at the bottom?

Because it was standing in water. Most older posts were set flat on concrete with no standoff, so the end grain wicks moisture up out of the slab and never dries. Add a porch floor that slopes toward the house or a downspout nearby and the bottom goes first. We set replacements on a standoff base and seal the end grain so the new post drains instead of soaking.

Should I use PVC or wood for a new porch column?

If the column is decorative and you want to stop repainting it, cellular PVC or a composite wrap is an excellent answer — it will not rot and it paints cleanly. Structural posts still need to be real structural lumber, though they can be wrapped in PVC afterward for the same maintenance-free finish. On a historic street we will match the original profile in wood.