Crawl Space Repair

The space under an older house decides how the floors above it behave. An independent provider can go underneath, find the joists that are sagging and the ground that is staying wet, and plan to put both right in the same visit.

  • Referral Service
  • Slab & Pier and Beam
  • Residential & Commercial

Signs the Crawl Space Needs Work

  • A floor that flexes underfoot in the middle of a room
  • Cold, damp air or a musty smell rising through the floor vents
  • Damp soil, puddles or standing water under the house after rain
  • Dark staining or soft, spongy wood on joists and beams
  • Vents blocked by soil, shrubs or an added patio slab
  • Insulation hanging down between the joists

Crawl space houses in and around Arlington are mostly the frame homes built from the 1920s through the 1950s, plus additions on larger older lots. Wood under a house is fine as long as it stays dry. Once the ground under there holds moisture through a wet spring, rot and mold growth follow, and the floor above starts to move whether the pads have settled or not.

White house with a garage, driveway and green lawn

What the Work Can Include

The structural half and the moisture half are quoted separately, because plenty of houses need only one of them.

Getting under and looking

Every beam, joist and pad is checked with the floor elevations taken above, so a bouncy room is traced back to the member actually causing it.

Supporting sagging joists

Sagging or split joists are sistered with new timber, and a girder that has lost its bearing gets proper support rather than another stack of blocks.

Resetting pads and shims

Interior pads sink into the soil over the decades. They are reset or rebuilt on adequate footings and shimmed so the load spreads evenly again.

Ground moisture control

A vapor barrier laid over the soil keeps ground moisture out of the timber and makes the space under the house a far less friendly place for mold.

Ventilation and access

Blocked vents are cleared, missing screens replaced and access hatches made usable, so the space can dry and can be inspected again in future.

Water from outside

Soil shaped to run toward the house, a dripping hose bib or a downspout at the corner puts the water there in the first place. Ask for that to be part of the plan.

Your Repair Options

On most houses this is staged work. The wet ground is dealt with first, any rotten wood is replaced, and only then is the floor lifted, a little at a time, so the plaster, tile and door frames upstairs can follow it. Chasing a perfectly flat floor in a house that has been settling since the Eisenhower years usually cracks more than it cures, so the written scope should say what level the crew is aiming for and stop there.

Structural support work under the same floor is covered in more depth under pier and beam foundation repair, and the staged lifting itself under foundation leveling. If part of the house is a later slab addition, that side moves on its own schedule and is handled through slab repair, with any wall cracking closed up afterwards by crack repair.

Keeping the water away is what makes the repair last, which is the job of drainage and root barriers. Older crawl space housing is common on the larger lots in Dalworthington Gardens, and a measured inspection is the right first step anywhere.

Crawl Space Questions

What affects the cost of crawl space repair?

How much wood has to be replaced, how many supports are added, how much headroom the crew has to work in and whether a vapor barrier and drainage work are included. A crawl space with two feet of clearance and a dry floor is quick. One at eighteen inches with standing water is not. Ask for a quote only after the provider has been underneath.

Can I jack up the floor myself?

No. Lifting a house is done in small increments with the load supported at every stage, and a jack that slips or a beam that rolls under load can kill someone. Going under with a flashlight to look and take photos is fine. Putting anything under load is not. Describe what you saw to the provider and leave the rest to them.

Do I need a vapor barrier under my house?

If the soil under there is damp for weeks at a time, yes. A barrier over the ground stops that moisture evaporating up into the joists and subfloor, which is what starts rot and musty air. It is not a substitute for fixing water getting in from outside, which is why grading and downspouts are looked at in the same visit.

Should a crawl space be sealed or vented?

Both approaches are used, and the right one depends on the house. Traditional vented crawl spaces rely on airflow to dry the space, which works well when the ground is covered and the outside drainage is right. Whichever way yours is set up, the priority is the same: keep liquid water out and keep the wood dry. Ask the provider to explain what your house is doing now and what changing it would involve. See what an inspection covers.

Call about a crawl space inspection in Arlington

When you call, mention where the floor gives and any water under the house.

Call for Service: (817) 391-2533