Concrete patio construction in Alexandria VA - a slab that holds up through winter

The cost comes down to your yard and your choices, and your written estimate lists each part so you can compare bids line by line. The base is the part nobody sees on day one and the first thing people want to cut, but I'd rather trim the finish than the base, because a fancy top on a soft base cracks just the same. A broom finish costs less than stamped or colored work, since decorative finishes take more labor and skill.

For most patios a broom finish is the best choice, because it gives a non-slip surface and it's the simplest to get right. Decorative options include exposed aggregate, where the top is washed back to show the stones in the mix, color mixed into the batch or shaken onto the surface, and stamped patterns. Industry guidance says these take much more care and experience, so ask any installer how often they do the finish you want, and I'll tell you honestly which ones take more skill.

It may crack somewhere, because no wire mesh or rebar, the steel set inside a slab, can stop concrete from cracking. What reinforcement can do, when it sits in the right spot in the slab, is keep a crack narrow, so ask every bidder where theirs will sit. The control joints we cut are there so any cracks follow lines we chose.

Go easy on deicing chemicals, since limiting them lowers the chance of scaling, the top flaking off in thin layers. The ready-mix trade group advises skipping deicers the first winter, using them in moderate amounts after that, and considering a commercial breathable sealer. The rest comes from the build, because dense concrete with entrained air, tiny bubbles that give freezing water room, laid and cured well, scales less.

You might, since the City of Alexandria requires permits for most construction and maintenance work, and the City's Department of Code Administration can tell you whether your patio needs one. We find out which office covers your address and take care of the permit work for our part of the job, and if anything needs your signature, we tell you up front. In a historic district, the City's policy lists ground-level paving that isn't a driveway, alley or parking among items that don't need historic board approval.

Yes, the whole City of Alexandria is a Chesapeake Bay Preservation Area because of its tidal wetlands, floodplains and easily eroded soils, and digging or grading over 2,500 square feet has to follow the rules that protect it. If your lot is in a Resource Protection Area, the City has to approve that work first, and you submit a Water Quality Impact Assessment explaining the effects and how they'll be reduced. Confirm your property sits inside the City of Alexandria before anything else, since these are the City's rules.