Protect the surface from water, salt, and sun.
Sealing is the cheapest thing you can do to keep an expensive slab from falling apart early. Bare concrete looks solid, but the surface is full of tiny pores. Water soaks in, road salt rides along with it, and then the Front Range freeze-thaw cycle goes to work. Water expands as it freezes, and it does that over and over through a single Colorado winter. That is what lifts the top layer off a driveway in flakes and leaves you with a pitted, scaling mess.
A good sealer closes off those pores so water and salt cannot get a foothold. On a new pour it protects your investment from day one. On decorative work it keeps color rich and stamped texture sharp instead of letting it fade gray under our high-altitude UV. We seal driveways, patios, garage floors, and stamped or colored surfaces across the metro and up and down the Front Range, and we tell you straight when a slab needs it and when it can wait.
We build for Boulder County soils and the colder northern winters so the concrete holds its shape and finish. For concrete sealing & waterproofing, that local knowledge is exactly what protects your investment. We plan the base, drainage, reinforcement, and finish around the conditions on your Longmont property, not a generic detail.
We serve every part of Longmont and the surrounding area, including Prospect, Old Town, Southmoor Park, Renaissance. Wherever you are in Boulder County, the crew shows up with the same standard.
At roughly 4,979 feet, Longmont gets intense high-altitude sun and a freeze and thaw cycle that is hard on any concrete poured without care. For sealing, that means air-entrained mixes, deliberate curing, control joints cut on time, and a base prepared for the expansive clay under your property. It is the difference between work that holds for decades and work that starts failing by the first or second spring.
There are two families of sealer and they do different jobs. Penetrating sealers, the silanes and siloxanes, soak into the concrete and bond chemically below the surface. They leave the look and texture almost unchanged, they do not peel, and they are the workhorse for driveways and walks that take salt and traffic. Film-forming sealers, usually acrylics, sit on top and add sheen and color pop, which is what you want on stamped and decorative work. The tradeoff is that films wear and need resealing more often, and they can get slick. We match the sealer to the surface and how you actually use it, instead of putting one product on everything.
This is the honest concern with sealing, and it is a real one. A glossy film-forming sealer on a patio or pool deck can get genuinely slick when it is wet or iced over, and that matters in a climate that throws snowmelt and freeze at the same surface all winter. We deal with it two ways. On decorative slabs that need a film for the color, we blend in a fine anti-slip grit so you keep the sheen without the skating rink. On driveways and walks we usually go with a penetrating sealer that leaves the original broom or aggregate texture intact, so traction does not change at all. Tell us where people walk in winter and we spec accordingly.
New concrete should cure before it gets a permanent sealer, generally about a month, so the slab can release moisture and reach strength first. Seal too early over a wet slab and you can trap that moisture and cause the sealer to cloud or fail. Older slabs are a different job. Before we reseal we clean the surface, strip any old failing film, and let it dry out, because a sealer is only as good as what it bonds to. If the concrete already has fine surface cracks, we address those first so water is not getting in underneath the work we are about to do.
No sealer is forever, and anyone who tells you otherwise is selling something. Out here the punishment is heavier than most places: intense UV at altitude, deicing salt tracked off the roads, and dozens of freeze-thaw swings between November and April. Penetrating sealers last the longest because they live inside the concrete instead of on top of it. Film-forming acrylics on a driveway take the most abuse and come up for renewal sooner, while a covered patio with the same sealer can go much longer. We leave you with a straight reseal schedule for your specific surface and exposure, so you are protecting the slab on time instead of waiting until the damage shows.
Every Longmont job starts with a free, written estimate and a structural engineer on staff for the work that needs one. Licensed, bonded, and insured, with finishes from a clean broom texture to stamped, colored, and sealed.
You always know what is happening and what it costs before we mix a single yard. Here is the path from first call to final walkthrough.
We visit the site, measure, check drainage and soil, and hand you a clear written quote. No charge, no pressure.
We set the grade, thickness, reinforcement, and finish. Structural work gets engineered and permitted.
Forms, rebar, and a clean pour. We screed, float, and finish to the texture you picked, then cut control joints.
You can walk it in 24 to 48 hours. We walk the job with you and explain how to care for it through the first winter.
Still unsure about something?
Call the crew at (303) 569-4046 and we will talk it through.
Get a free, no-obligation estimate from a crew that knows Colorado soil, Colorado weather, and how to finish concrete that lasts.
Accessibility
Adjust the site to fit how you read and browse. Your choices are saved on this device.