Waterproofing Construction Leads in St. Louis (2026): 32 Projects in the Award Window
To find waterproofing construction leads in St. Louis, work from building permits and time the call to the build stage. On October 9, 2026, 32 permitted projects in the City of St. Louis were still at the point where waterproofing is awarded. The general contractor awards waterproofing around the foundation and the building envelope; an envelope consultant or the architect often specifies the system. Builtie reads the permits, estimates each project's stage and attaches the builder or general contractor with a verified decision maker.
The same four steps, whether the buyer is a builder, a designer, an owner or a company you want to acquire.
How many waterproofing projects are open in St. Louis right now
| Measure | St. Louis |
|---|---|
| Projects in the waterproofing award window | 32 |
| New buildings / renovations and alterations | 4 / 28 |
| Rank among 25 markets for waterproofing | 23 of 25 |
| Newest permit in the St. Louis feed | October 8, 2026 |
12% of them are new buildings and 88% are renovations, additions or alterations, so most of it sits in renovations and fit-outs, where the owner, a designer or a renovation contractor often makes the call. St. Louis ranks 23 of 25 markets Builtie covers for waterproofing, behind North Little Rock (63 projects).
A project counts when its permit was issued in the last four years, the build is still inside the stage when waterproofing is awarded, and the job is big enough to be worth quoting: at least $8k of waterproofing work. Trade sub-permits are grouped into their parent project, so this is a count of projects, not permits.
Read October 9, 2026 from Builtie's permit data: the ten largest of 25 markets, plus St. Louis.
When waterproofing is awarded, and who decides
Builtie times waterproofing from about 10% of the way through the build to about 35%, with the last realistic approach at about 45%. The general contractor awards waterproofing around the foundation and the building envelope; an envelope consultant or the architect often specifies the system.
Tap a stage. The highlighted stage is where waterproofing is typically awarded.
What to lead with when you call a builder in St. Louis: below-grade and envelope systems, warranty terms and inspection coordination.
What the St. Louis data covers
The data is the City of St. Louis's own building permits. Neighbouring cities issue their own permits and are not in this count. St. Louis joined the feed recently, so every project counted here was permitted in the last 90 days and the counts will grow as the history fills in. St. Louis County is a separate permit office.
Trades bought around the same stage in St. Louis
| Trade | Projects in the award window | Award window |
|---|---|---|
| Masonry leads in St. Louis | 38 | 10% to 30% |
| Painting leads in St. Louis | 76 | 5% to 35% |
| Roofing leads in St. Louis | 57 | 15% to 35% |
| Windows, Doors and Glazing leads in St. Louis | 74 | 15% to 35% |
| Electrical leads in St. Louis | 90 | 20% to 45% |
| HVAC and Mechanical leads in St. Louis | 94 | 20% to 45% |
Every trade in St. Louis: St. Louis construction leads by trade. Every market for waterproofing: Waterproofing construction leads by city.
Plans
Builtie's Starter plan is $79 per seat per month (CAD) for 20 projects; Growth is $99 for 50 projects and adds the LinkedIn and email outreach you run yourself. Opening a project spends one credit, and the decision makers, emails, phones and AI call script inside it are included. Your monthly credits reset at each renewal, and extra credit packs are valid for 30 days. The free trial runs 7 days with 10 projects. Custom, where Builtie's team runs the outreach for you, starts from CAD $1,500 a month on top of a Growth seat.
Builtie's deepest coverage is in the Greater Toronto Area, where it started; depth in any city depends on what that municipality publishes. Ask for live sample projects in your own service area before you buy.
Frequently asked questions
How do I find waterproofing construction leads in St. Louis?
Start from building permits, not bid boards: most private waterproofing work is awarded by the builder or general contractor without a public bid. Builtie reads the City of St. Louis's permits, keeps the projects still inside the waterproofing award window (32 on October 9, 2026) and attaches the builder or general contractor with a verified decision maker.
When should waterproofing contractors contact a builder in St. Louis?
Builtie times waterproofing from about 10% of the way through the build to about 35%, with the last realistic approach at about 45%. After that the package is usually awarded, and the project is better used as an introduction for the builder's next job.
Who awards waterproofing work on new construction in St. Louis?
The general contractor awards waterproofing around the foundation and the building envelope; an envelope consultant or the architect often specifies the system.
How many waterproofing projects does Builtie track in St. Louis?
32 projects were inside the waterproofing award window on October 9, 2026: 4 new buildings and 28 renovations or alterations. The count refreshes hourly.
What does Builtie cost?
Starter is $79 per seat per month for 20 projects; Growth is $99 for 50 projects and adds LinkedIn and email outreach. There is a 7-day free trial with 10 projects.