Oregon CCB Licensed, Bonded & Insured
We carry an active Oregon contractor license, bond and insurance, so you can check us out before you let a crew into your basement. Since 1994 we have waterproofed 9,800 properties across the city of Portland.
Portland, since 1994
Three Decades Under Portland Homes
We started in 1994 with one truck, one pump and a belief that most waterproofing companies were selling products instead of solving problems. Nine thousand eight hundred basements later, that is still the entire business model. You can read what that looks like on real houses , or check the code we build to at the Oregon Building Codes Division (opens in a new tab) .
Who We Are
A Licensed Portland Contractor
Basement Waterproofing Portland LLC is a locally owned basement and crawl space contractor based at 599 SW Main St, Portland, OR 97204. We are not a franchise, a lead-generation broker or a network of subcontractors. Every inspection, quote and repair is carried out by our own employees, licensed, bonded & insured contractor.
What We Do
Four Services, One Crew
- Basement crack repair , full-depth resin injection for a defined leak
- Crawl space encapsulation , sealing the ground and air under your floor
- Crawl space repair , fixing joists, beams and supports moisture already damaged
- Foundation repair , piers, underpinning and wall anchors for a moving foundation
Our Story
Built by people who were tired of bad basements
Our founder spent six years working for a national waterproofing franchise before starting this company. What drove him out was watching crews install the same system in every house regardless of what the water was actually doing, because that was the product the company sold.
In Portland that approach fails constantly. The ground here changes within a mile: layered Missoula flood silt across the east side, dense clay under Woodstock and Montavilla, hillside seepage running downhill through the west, and pre-war rubble footings in Sellwood and St. Johns. Each one moves water differently and needs a different answer.
So we built the company around diagnosis. Test pits, moisture mapping and a hose test come before any price. Sometimes that means we walk away from a $30,000 job because the real fix is a downspout extension, and we have never regretted one of those conversations.
Today we are twenty-eight people, six trucks and one excavator, all employees, working across Portland. We still answer the phone at 2am in January, which is when it actually rings.
30+
Years keeping basements dry 9,800+
Basements waterproofed 100%
Licensed, bonded & insured 24/7
Emergency water response Diagnose before you sell
Nobody on our team earns commission on the size of a job. If a $300 grading correction fixes it, that is what goes on the proposal.
Our own crews, every time
No subcontractors, no day labor. Every technician is a background-checked, IICRC-certified employee of ours.
Fixed price, in writing
Materials named by brand, scope drawn out, change-order policy stated up front. The number you sign is the number you pay.
Warranty that outlives the sale
Our lifetime guarantee transfers with the house. It is a promise we can only make because we build systems that keep working.
The people on the truck
M Marcus Deleon Field Operations Lead 19 years
P Priya Raman Certified Waterproofing Inspector 12 years
D Dominic Falcone Excavation Foreman 24 years
S Sarah Kozlowski Remediation Supervisor 9 years
Behind the Truck
How We Train Our Crews
"No subcontractors" only matters if the employees replacing them actually know the work. Here is what that looks like before anyone knocks on your door.
01
Six weeks on a working crew before solo diagnosis
Every new hire shadows a senior technician on real jobs first. Nobody runs an inspection alone until a lead has watched them read a moisture meter, walk a grade and call the right fix without prompting.
02
IICRC certification, renewed on our clock
Water damage restoration and applied structural drying certifications are paid for and tracked internally. If a certification lapses, that technician is paired with someone current until it is renewed.
03
A second look on anything over $8,000
A second inspector reviews the scope before a large proposal goes out. It catches the rare case where a first read missed a cheaper fix, and it means no one job depends on one person’s judgment alone.
04
Annual refresher on codes and materials
Oregon Building Codes Division (opens in a new tab) updates, new resin formulations and drainage products get a documented internal review every year, not left to whoever happens to read the trade press.
Verify Us Yourself
Do Not Take Our Word for It
Licensed, Bonded & Insured Contractor. Check our license and see what a written home improvement contract has to include, before you sign anything with us or anyone else, at the Oregon Construction Contractors Board (opens in a new tab) . The code our structural work is inspected against is public too, at the code division that inspects work like ours (opens in a new tab) .
4.9 from 312+ Portland homeowners
“Eleven winters of moving boxes to higher ground, and this January the floor was bone dry through a week of steady rain. The crew laid plastic over everything, hauled the spoil out by bucket and swept up each evening. Marcus explained the cove joint problem in a way that finally made sense.”
Danielle Whitcomb, Sellwood-Moreland, Portland
Read all 312 reviews Decades of Experience, Built Into Every Basement
Why Portland Homeowners Choose Us
Choosing a basement waterproofing contractor comes down to 2 questions: is the water still gone in 10 years, and is the company that promised it still answering the phone at 2am in January. We have been answering since 1994. Portland homeowners pick us for 4 reasons, listed below.
Locally Owned & Operated
We are a Portland business, not a national franchise. We know this ground, from flood silt on the east side to hillside seepage above Burnside, because we have already dug into it.
No Subcontractors or High-Pressure Sales
Every technician is our own employee, background-checked and trained on our own systems. We test, measure and diagnose before we quote, and we cancel proposals regularly once the real fix turns out to be a downspout extension.
Transferable Warranty
Every system carries a lifetime warranty that covers labor and materials, not just parts. It transfers once to the next owner at no cost, which turns a wet-basement history into a selling point instead of a repair bill.
Areas We Service
Covering Every Basement Across Portland
Basement Waterproofing Portland works inside the city limits only, covering 12 Portland neighborhoods and all 33 city ZIP codes. Soil changes from one street to the next here, so our crews work from what actually sits under each address rather than a single template.
Downtown Sellwood-Moreland Hawthorne Laurelhurst Alberta Arts St. Johns Multnomah Village Irvington Woodstock Montavilla Kenton Beaumont-Wilshire
Portland ZIP codes we cover
97201 97202 97203 97204 97205 97206 97208 97209 97210 97211 97212 97213 97214 97215 97216 97217 97218 97219 97220 97221 97222 97223 97224 97225 97227 97229 97230 97232 97233 97236 97239 97266 97267
Contact Us
Request Your Free Basement Inspection Today
Water in the basement, a foundation crack you have been watching, or a crawl space nobody wants to open. Get a straight diagnosis from Basement Waterproofing Portland, with fast response, fixed pricing and workmanship guaranteed for life across the city of Portland.
No obligation
Fixed pricing in writing
Mon to Sat, 7:00am to 7:00pm · 24/7 emergency response