SmartJack foundation repair typically costs $2,000-$8,000, with an average project near $4,500 for several supports beneath a sagging floor. The final price depends on the number of jacks, crawl-space access, soil and beam conditions, and local labor rates.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Installed SmartJack | $1,000 | $1,500 | $2,500 | Per support, including typical installation |
| Small repair | $2,000 | $3,500 | $5,000 | About 2-3 jacks with ordinary access |
| Mid-size repair | $4,000 | $6,500 | $9,000 | About 4-6 jacks, may need beam work |
| Large or difficult project | $8,000 | $12,000 | $20,000+ | More supports, access work, or structural repairs |
Assumptions: U.S. contractor installation, standard galvanized steel supports, and no major drainage or foundation reconstruction.
What several SmartJacks cost beneath a typical home
Most quotes cover a group of supports rather than one jack. A two- or three-jack repair commonly falls around $2,000-$5,000; four to six jacks may cost $4,000-$9,000. Larger jobs can exceed $12,000 when multiple beams, tight access, or related repairs are involved.
A practical planning figure is $1,000-$2,500 per installed jack, with the number and layout set by a contractor. This estimate generally assumes steel support posts, base plates, installation, and adjustment. Engineering, permits, or floor and beam repairs may be billed separately.
How steel supports, labor, and access shape the quote
A contractor’s estimate may bundle materials and labor into a per-jack price. For a clearer comparison, ask for the number of supports, work included, and any separate site-preparation charges.
| Quote item | Typical range | What it covers | Pricing basis |
|---|---|---|---|
| SmartJack materials | $250-$700 | Steel post, plates, and related hardware | Per support |
| Installation labor | $500-$1,300 | Layout, footing preparation, placement, adjustment | Per support or crew day |
| Access or prep work | $300-$2,000 | Clearing, limited excavation, or crawl-space access | Per project |
| Beam or framing repairs | $500-$4,000+ | Reinforcement or replacement of damaged wood | Per project |
| Inspection or engineering | $300-$1,500 | Assessment, design, or documentation when required | Per visit or project |
Labor can represent a substantial share of the total, especially when the crawl space is difficult to reach. Contractor rates often work out to roughly $75-$150 per worker-hour, though quotes are commonly fixed-price.
Why beam span and crawl-space height change jack counts
The support layout depends on the length and condition of the beam, the floor load, and where the floor is sagging. A contractor may recommend additional supports when a beam span exceeds roughly 8-10 feet between bearing points or when damage extends across several rooms; those distances are examples, not universal engineering limits.
Crawl-space height also affects labor. A clear space around 24 inches or higher is generally easier to work in than a space below 18 inches, where digging or access improvements may be needed. Wet, soft, or uneven soil can require larger footings or other stabilization, adding hundreds to several thousand dollars.
Ask the estimator to show the proposed jack locations and explain what load or beam condition each one addresses. A quote that only lists a total number of supports is harder to evaluate.
How SmartJack prices vary across U.S. markets
Local labor and contractor availability influence the installed rate. In lower-cost rural markets, quotes may run about 10%-20% below a national planning estimate; major metros and high-cost coastal markets may be 15%-30% higher. These differences are broad budgeting ranges, not fixed regional price lists.
Travel charges can affect remote properties, while dense urban neighborhoods may add costs for access, parking, or job logistics. Compare at least two itemized local quotes using the same support count and scope. A lower per-jack price may exclude framing work, engineering, or debris removal.
How many work hours a crawl-space installation takes
A straightforward installation of two to four jacks may take a two-person crew about 6-12 hours. Projects involving five to eight supports often take one to two days. Restricted entry, excavation, wet conditions, or replacing a damaged beam can extend the schedule.
Many contractors include setup and cleanup in the total, but not extensive removal of stored items or contaminated debris. Confirm whether the price includes cleanup and whether the crew will adjust the supports gradually to avoid abrupt changes to the floor.
Three SmartJack quote examples by repair size
| Example | Scope | Estimated total | Assumptions |
|---|---|---|---|
| Small room | 2 jacks at $1,250 each | $2,500 | Easy access, no beam replacement |
| Several rooms | 5 jacks at $1,500 each | $7,500 | About 10 crew-hours plus minor prep |
| Restricted crawl space | 7 jacks at $1,850 each | $12,950 | Low clearance and added footing work |
Illustrative estimates only; actual engineering, labor, and local rates vary. Use these examples to compare scope, not as guaranteed bids.
SmartJacks compared with shimming or beam replacement
Shimming a sound beam can cost roughly $500-$2,000 when only minor adjustment is needed, but it may not provide the same adjustable support for a larger sagging area. Replacing a damaged beam can cost $1,500-$6,000 or more depending on length and access. A contractor may combine beam repair and jacks when both are needed.
SmartJacks address support beneath floors; they do not automatically correct water intrusion, expansive-soil movement, or every foundation crack. Ask whether the proposed repair addresses the underlying cause, not just the visible floor slope.
Ways to keep a SmartJack repair within budget
Request a written layout showing jack locations, footing details, included framing work, and exclusions. If the quote includes unrelated upgrades, ask which items are necessary for the floor-support repair and which are optional. Comparing proposals with the same scope helps reveal meaningful price differences.
Clear stored items from the crawl space before installation if the contractor allows it, and address standing water or access obstructions before the crew arrives. Avoid choosing fewer jacks solely to lower the bid if the support plan does not meet the contractor’s load assessment. The safest savings come from controlling extra work and comparing equivalent quotes, not reducing required support.