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Stem Walls in Arvada, Colorado
Arvada, Colorado

Arvada Stem Wall Contractors

Nobody plans a stem wall project. They plan a remodel, and the stem wall decides how it goes.

Almost nobody calls us about a stem wall. They call about a project. A room going off the back. A garage turning into an office. A siding job that turned up something soft where framing meets concrete. Then mid-project, the short band of concrete between the wood and the dirt becomes the thing every other trade is waiting on.

Arvada gives us that conversation in three flavors, because the housing came from three eras. Olde Town homes were built small and get added onto. West Woods houses are old enough now for their second round of real work. Out at Candelas, Leyden Rock, and Whisper Creek the walls are young, and the question is never the concrete. It's what the concrete stands on.

The project you want, and what your stem wall has to do about it

Six remodels that run straight into the wall, and the detail that decides each one
What you're planningWhat it asks of the wallWhere it usually stalls
Room addition off an older houseNew bearing that matches how the old wall bears, at the same depthA shallower new footing, so the addition drifts on its own schedule
Garage becoming heated living spaceA wall now separating conditioned rooms from wet groundNothing on the buried face, because it was built for a cold garage
Re-siding, with rot found at the bottom plateEnough concrete showing above grade to keep wood out of the wetSoil and mulch raised over the top of the wall years ago
Detached shop on a graded padFrost resistance with no heat inside the building helpingMinimum depth, on fill that hasn't finished packing down
Deck or covered patio tied to the houseSound concrete in the load path and every penetration sealedA ledger bolted through siding into a face already flaking
Landscaping that raises the back gradeClearance held between soil and anything made of woodBeds built up until the wall vanishes and water has nowhere to go

Three decades of stem wall in one city

The oldest walls we work on around Olde Town are short, honest, and light on detail. They were built to hold a small house up off the dirt, and they mostly did it. What they never got was anything on the outside face, so decades of water moving through the trench has left the base soft in spots and the crawl space damp every March. Those we repair a section at a time.

West Woods sits in the middle. Better construction, deeper walls, and the trouble there is usually about what got added later: a patio poured tight to the house, a bed raised eight inches, a downspout dumping in the same place since the trees were small. Newer west-side walls are a different job. The concrete is fine. Everything interesting is happening in the ground beside it.

What a graded pad asks of a short wall

On a pad that was cut and filled, a wall is only as steady as the compaction record behind it. Good fill, placed in lifts at the right moisture and tested going up, carries a stem wall for as long as anyone will own the house. Fill that went in fast keeps compressing, and it never compresses evenly, so one run of wall drops while the rest holds. That's how a hairline turns into a stepped crack in two seasons.

So on newer construction we ask different questions. How deep is the fill under this corner. Was the trench beside the foundation packed or just pushed back in. Where does the sump discharge land. An addition or a shop going onto that pad gets bearing set on the same terms as the house.

Planning a project that runs into the foundation wall?

Send us the scope and a few photos at grade level. We'll tell you what the wall can take and what it can't before you're committed. (303) 569-4046.

What we check before quoting work that touches an existing wall

  • How much concrete shows between finished grade and the bottom of the siding
  • Condition of the face at the splash line, including the side nobody walks
  • Staining, salts, or standing water in the crawl space or lower level
  • Depth and bearing of the existing footing where new work has to match it
  • Every penetration through the wall, and whether it was ever sealed
  • Where roof water, sump discharge, and irrigation land relative to the trench
  • On newer builds, fill depth and whatever compaction data exists

Timing wall work around an Arvada year

Digging next to a house goes best when the ground cooperates, and that means late summer through fall here. Soil holds a clean trench face, the excavation stays open safely, and there's time to finish backfill and final grade before anything freezes.

Pours run nearly year round. Cold months bring heated mix water, non-chloride accelerator, and blankets, and we never place on frozen bearing. The step we get stubborn about is putting the dirt back. Frozen material bridges instead of compacting, and by April it has thawed into a void that reads as a settled walk or a bed pitching back at the house. In deep winter we wait for a thaw or import material that behaves cold.

Arvada Stem Walls

Stem Walls in Arvada

Still unsure about something?

Call the crew at (303) 569-4046 and we will talk it through.

It has to match how the old one bears, which usually means the same depth and the same material underneath. Two halves of a house supported at different depths answer the weather differently, and the joint between them opens. Our engineer measures the existing footing first, and where depths can't match we detail the connection so the halves aren't fighting each other.

Often, yes. A wall poured for a cold garage was never asked to keep a finished room dry, so there may be nothing on the buried face and no thermal break. Before drywall goes up we want the exterior treated where we can reach it and the slab edge looked at, since that's where cold and moisture arrive first.

Usually not the concrete. It's almost always clearance. Somewhere along the way the grade came up, or a patio got poured level with the plate, and now wood sits where only concrete belongs. The fix is combined: cut the grade down, correct the drainage that fed it, repair the framing, and rebuild the top of the wall if it has spalled.

No, and we push back when somebody says otherwise. We rebuild in sections: shore the framing, cut to sound concrete, dowel new steel into what stays, and let each section gain strength before moving down. Slower than a full replacement, far less disruptive. Only when the failure runs the whole length does replacing everything make sense.

One good reason. Every inch of soil you add takes an inch of clearance from your framing, and once dirt sits above the top of the wall you've built a moisture trap against material never meant to be buried. If the yard has to come up, do it with a low wall set away from the house.

The concrete spec barely changes. What changes is what we verify first: how deep the fill runs, whether it was placed and tested in lifts, and whether the trench beside the existing foundation was compacted or just backdragged in. On deep or questionable fill the answer is sometimes to skip conventional bearing and drill through it.

Depends on the framing above, not the concrete. Square structure, sound roof, damage limited to the wall at grade: rebuilding that perimeter is straightforward and worth doing. Racked building, failing roof, broken slab: you're rebuilding a garage around a repair. We'll give you that read straight.
Finished concrete project at a Colorado home

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