Basement Waterproofing cost in St. Augustine, FL
St. Augustine, FL · updated August 2026
$8,400
Typical local cost
$3,100 – $18,400
Typical range
- per linear foot of drain installed
- $50 – $150
- Permit
- It depends
- Typical timeline
- 2-5 days of work
Installed, local pricing
$0 – $400 in fees
2-5 days of work
St. Augustine runs +2% against the U.S. average · data confidence Medium · modeled estimate, not a quote
The modeled midpoint for St. Augustine is $8,400. The local adjustment for this trade is x1.021 — driven mainly by St. Johns County labor rates and 20% exposure to local code requirements.
Cost by project size
Generated from the same unit pricing the calculator uses.
| Project size | Estimated range |
|---|---|
| 45 linear foot of drain installed | $2,300 – $6,800 |
| 60 linear foot of drain installed | $3,000 – $9,000 |
| 75 linear foot of drain installed | $3,800 – $11,300 |
| 100 linear foot of drain installed | $5,000 – $15,000 |
| 130 linear foot of drain installed | $6,500 – $19,500 |
Based on St. Augustine pricing of $50–$150 per linear foot of drain installed.
Where the money goes
- Labor
- $4,600
- 53% of median
- Materials
- $3,800
- 44% of median
- Permit & fees
- $200
- 2% of median
St. Augustine project costs+2% vs U.S. average
Based on St. Johns County labor rates, local material logistics and permit-fee posture for this trade.
What the project looks like start to finish
Typical sequence for this scope. Timing varies with contractor backlog and plan-review queues.
01
Planning & quotes
Scope, material choice, contractor selection
02
Permit application
Filed with City of St. Augustine building department
03
Materials & staging
Order lead time on non-stock materials
04
Installation
2-5 days of work
05
Inspection
Plumbing inspection where a sump discharge is added
06
Closeout
Final sign-off, warranty and documentation
St. Augustine labor intelligence
What the trade charges here, and how much of your price it is.
Loaded hourly rate
$72–$93
Structural crews in St. Johns County · 0% vs U.S. ($82/hr)
Typical crew
3 × 2.5 days
On-site time for a typical waterproofing job here.
Labor in the price
$4,600
55% of the median — the rest is material, disposal and permit.
Because labor is 55% of this job, St. Augustine wage levels move the price far more than material prices do. A quote well under this labor figure usually means a smaller crew, a longer schedule, or unlicensed help.
Basis: Hometriva labor model: national structural crew rates adjusted by the St. Johns County labor factor (x1.000). · BLS Occupational Employment and Wage Statistics, Hometriva methodology
Why St. Augustine differs from the national average
The local delta, broken into dollars by driver.
Material and delivery+$100
Materials are nationally traded, so they move less — but delivery into this market runs 3% over baseline because of coastal logistics.
Code and inspection load+$75
Basement Waterproofing carries 20% exposure to local code requirements, and this jurisdiction's review load indexes at x1.04.
Basis: Decomposition of the modeled St. Augustine median against the U.S. median for this scope. · City of St. Augustine building department, Hometriva methodology
St. Augustine vs Florida vs the U.S.
Change the inputs, see your number
The same local model, run against your job instead of the average one.
Simulated basement waterproofing in St. Augustine
$8,600
Likely range $3,300 – $18,600
Simulated from the same local model as the numbers above — it changes the inputs, not the pricing method.
What makes the number move
- Interior drain tile versus exterior excavation and membrane
- Linear feet of wall treated and the number of sump pits
- Concrete breakout and replacement inside the slab
- Battery backup or a second pump for redundancy
- Grading, downspout extension and window well work outside
Who issues each permit
Tracked per discipline — the building permit issuer is not always the body that reviews electrical, plumbing, zoning or fire.
| Discipline | Issuing authority |
|---|---|
| building | City of St. Augustine building departmentModeled estimate |
| electrical | City of St. Augustine building departmentModeled estimate |
| mechanical | City of St. Augustine building departmentModeled estimate |
| plumbing | City of St. Augustine building departmentModeled estimate |
| zoning | City of St. Augustine building departmentModeled estimate |
| fire | City of St. Augustine building departmentModeled estimate |
Permit requirement in St. Augustine
It depends on scope. Like-for-like cosmetic work in St. Augustine is often exempt, but a permit is required as soon as you change structure, plumbing, electrical or the building envelope.
- Permitting authority
- City of St. Augustine building departmentModeled estimate
- Permit fee
- Estimated allowance $0–$400Modeled from comparable fee schedules — not an official quoted fee.
Inspections
- Plumbing inspection where a sump discharge is added
Local conditions that change this job
Only the exposures that materially affect basement waterproofing.
Cooling load / heat exposure
High77/100
Humidity
Severe84/100
Named-storm exposure
High66/100
Historic district properties face additional design review that can add weeks to exterior projects.
Nearby market comparison
| Market | Local factor | Median | Per linear foot of drain installed |
|---|---|---|---|
| St. Augustine (this page) | x1.021 | $8,400 | $50 – $150 |
| Jacksonville | x0.975 | $8,000 | $50 – $150 |
| Daytona Beach | x0.999 | $8,200 | $50 – $150 |
| Gainesville | x0.943 | $7,700 | $50 – $150 |
What St. Augustine homeowners actually paid
Homeowner-reported invoices for this market. Nothing is published until enough reports clear review, so this section is often empty in newer markets — adding yours takes 20 seconds and no personal details.
Quotes homeowners were given in St. Augustine
Quotes run ahead of final invoices. Reporting yours shows the local spread and where there is room to negotiate.
How Hometriva estimates St. Augustine waterproofing costs
Hometriva does not publish invented city prices. The St. Augustine estimate for basement waterproofing is produced by this chain, and every input is stored separately:
- National baseline$8,200
Typical U.S. cost for basement waterproofing on a single-family home.
- Local labor factorx1.000
St. Augustine-area trade labor rates, weighted at 55% of this job.
- Material factorx1.029
Material and delivery pricing into St. Johns County, weighted at 45%.
- Regulatory factorx1.040
Local code, product-approval and inspection load, applied at 20% for this project type.
- Applied multiplierx1.021
Blended St. Augustine adjustment specific to basement waterproofing.
- Permit component$0 – $400
Budgeted separately from the contract price because it is paid to the jurisdiction.
Because labor, material and regulatory factors are weighted per project, basement waterproofing in St. Augustine carries a different local adjustment than other trades in the same market.
Reviewed by
Hometriva Cost Data Desk
Maintains the unit-cost baselines, local adjustment factors and material pricing. Reviewed for basement waterproofing pricing in St. Augustine, FL.
- • National unit-cost baselines against current trade pricing
- • Local labor and materials factors for the market
- • Material installed-cost ranges and service life
Last reviewed August 2026 · Editorial standards · Report an error
Frequently asked questions
Is a permit needed to waterproof a basement?
Interior drainage is often treated as maintenance, but adding a sump discharge, altering plumbing or excavating against the foundation usually triggers a permit. Ask the local building department before work starts.
Does interior drainage fix the cause?
It manages water that has already reached the wall. When the cause is grading, gutters or a downspout discharging beside the foundation, correcting that outside is cheaper and should come first.
How long does basement waterproofing take?
2-5 days of work. Permit review and inspection scheduling are usually the largest source of variation.
What changes the price the most?
The largest cost drivers are interior drain tile versus exterior excavation and membrane; linear feet of wall treated and the number of sump pits; concrete breakout and replacement inside the slab.
Sources
Sources & verification
- City of St. Augustine building department
- St. Augustine permit portal
- Florida Building Commission
- BLS Occupational Employment and Wage Statistics
Model vintage August 2026. The links above are the issuing agencies' own pages — we publish them so you can confirm the current rule yourself, not as evidence that each fact on this page was re-checked with them today. Cost figures are modeled estimates based on national baselines adjusted for local labor and material pricing, not quotes. Permit rules change; confirm with the building department before starting work.