Every line in a bid is a choice
A basement waterproofing quote is a bundle of decisions: which walls, how many feet of drain, which pump, whether anything happens outside. A single total for "waterproofing" can stand for a full interior system or a coat of sealer. Your basement's size, layout and problem shape its price. Breaking the work into pieces, and knowing what pushes each piece up or down, lets two Richmond bids be read line against line.
The inspection visit
Some companies charge for the first visit and credit it if you sign; others fold it in. Either way, ask for the findings on paper:
- where water enters, and how the inspector reached that conclusion;
- whether plumbing leaks and condensation were ruled in or out;
- whether any crack shows signs of movement;
- photos and any moisture-meter readings taken.
A visit that ends with one product and one number, with no cause stated, leaves you nothing to measure the next bid against.
Drainage outside the walls
Work at the roofline and in the yard needs no saw on the slab. What changes its cost:
- the length of gutter re-hung, resealed or replaced, and whether outlets are enlarged;
- how many downspouts get extensions or buried lines, and how far those lines run;
- how much soil it takes to rebuild the grade, and whether a machine can place it or it goes in by hand around steps, beds and equipment pads;
- liners, drains or covers for window wells.
Ask whether the company does this work with its own crew or expects you to hire someone else for it.
Sealing cracks and pipe openings
Injection of non-structural cracks may be priced per crack or by length. Wall height, the product chosen, and anything that has to come down first, such as shelving, framing or drywall, all move the figure. Openings where pipes or conduit pass through the wall can be sealed as part of the same visit; ask whether they are counted. A crack that shows movement belongs on its own line, with an engineer's fee apart from the waterproofing work.
Interior drain systems
A perimeter drain cut into the slab can be a large line in an inside-only proposal. Its cost moves with:
- the feet of wall covered, whether one wall, several or all of them;
- slab thickness, and anything in the way: stairs, a furnace, a water heater, a finished wall;
- how the concrete is finished afterward;
- a drainage sheet on the walls tied into the drain.
Sump, pump and discharge line
The sump line should list the basin, the pump, a check valve, a sealed lid and the discharge piping. Pumps that look alike can differ in capacity and build, so ask for the model and whether a battery or water-powered backup is in the price or extra. The discharge run carries its own cost, and the length and route of the pipe change it. Ask where the water will come out and how the outlet is kept clear.
Digging to the footing
Exterior excavation, with a membrane, drain board and footing drain applied from outside, can be a large item when it appears. Depth, the feet of wall, machine access and whatever stands in the way (a deck, steps, a slice of driveway, utilities, plantings) shape it. Ask whether hauling soil, backfill, compaction and restoring the lawn or paving are inside the price or billed later.
Air and condensation
If the inspection points to moisture from the air, the spending shifts toward a dehumidifier sized for the space, a drain route for it (gravity, a floor drain or the sump), air sealing at the rim joist, and insulation on cold-water pipes. Ask for the unit's make and capacity in writing so the next bid can be compared with it.
Permit timing in Richmond
Richmond building permits are valid for 180 days from issuance, and each building inspection extends the permit another 180 days; the city's goal is an initial plan review within 10 business days.
Ask each company whether this job needs a permit, who pulls it, whether the fee is in the total, and how its schedule accounts for plan review and inspections.
Two local records
NOAA's Richmond/Byrd Field data. NOAA's engineering weather data for Richmond/Byrd Field lists a 50-year basic wind speed of 90 mph (3-second gust at 33 feet), a 100-year rainfall rate of 3.3 inches per hour and about 56 freeze-thaw cycles in an average year.
Drinking water. Richmond's Water Treatment Plant was built on the banks of the James River in 1924. The Department of Public Utilities plant can produce up to 132 million gallons per day; in 2025 it treated an average of 64.2 MGD, and the city says it monitors the James River continuously throughout the year.
Questions to put to each company
- Does this job's value call for a Virginia Board for Contractors license, and if so, which class and classification do you hold, and what is the number?
- Can you provide proof of liability coverage and workers' compensation before work begins?
- What payment schedule do you propose, and which finished stage triggers each payment?
- What does the written warranty exclude, and does it transfer to a buyer?
- Who removes and replaces finished walls, flooring or stored items, and is that in the price?
Reading bids together
Write the pieces above down the left edge of a page, give each company a column, and fill in what it wrote. Where a column is empty, call and ask whether that piece is excluded or simply unwritten. The totals mean little until each column describes the same basement.
A low figure may be leaving out a wall, a backup pump or the outside work. A high one may reflect something the inspector found that the others missed; ask the company to show you. Pay in stages tied to finished work rather than a large sum up front.