Bonus 1 · The Keep Dry Spring Water Checklist
A plain-English list of the four things to check around your foundation each spring so small problems never become foundation problems, yours free whether you hire us or not.

300+ Sudbury properties restored · 10+ years · Fully guaranteed work
Sudbury homeowners: we find the real reason water is getting into your basement, fix it at the source, and back the work with a written guarantee. One visit, one clear plan, one fixed price. No guesswork, no surprise costs, no callbacks next spring.
Free 30-minute on-site assessment. No obligation, no pressure, no cost.
★★★★★
Average 5-star rating
Reviewed by homeowners across Greater Sudbury
“Excellent foundation waterproofing services in Sudbury.”Amal
“Best basement waterproofing contractor in Sudbury.”Hassan
“Best basement waterproofing contractor in Sudbury.”Ahmed

The crack everyone sees is rarely the real entry point. Water travels along the footing and can show up metres from where it gets in, so sealing one visible crack feels like a fix until the next heavy rain.
Damp basements smell, ruin stored belongings, lift flooring and devalue the house. And the worst part is paying twice because the first repair treated the symptom, not the source.
The mechanism
01
We check the walls, footing, grading, weeping tile and sump before quoting anything.
02
We use the right system for that specific problem—waterproofing, crack repair, drainage or footings—not a one-size-fits-all patch.
03
We test, document and stand behind the work with a written guarantee, showing you exactly what we did and why.
Claims are easy. Here is what Sudbury homeowners say.
10+ years
of experience
300+ properties
restored
“I recommend Keep Dry Foundation for their excellent foundation waterproofing services in Sudbury. Thanks to all the team.”
“Thank you Keep Dry Foundation for your services. Best basement waterproofing contractor in Sudbury.”
“Thank you Keep Dry Foundation for your services. Best basement waterproofing contractor in Sudbury.”
“TJ at Keep Dry fixed our crumbling foundation professionally. We were 110% satisfied and impressed with everything. He kept us posted every step of the way and did exactly what he said he would do.”
The offer
A service call and written assessment like this normally runs about $450. On this page it is free, because we would rather show you how we work before you spend a dollar with us.
Tell us what is happening and we will confirm a time.
Two bonuses for booking through this page
Bonus 1 · The Keep Dry Spring Water Checklist
A plain-English list of the four things to check around your foundation each spring so small problems never become foundation problems, yours free whether you hire us or not.
Bonus 2 · Priority Scheduling
Book through this page and you are placed ahead of the standard queue so the work happens before the next thaw, not after it.
The guarantee
If water still gets in where we worked, we come back and make it right. Our workmanship is guaranteed in writing. That is the whole point of fixing the source instead of patching the symptom.
We only take on a limited number of new projects each month, and spring thaw fills our calendar first. Book your free assessment now and we will hold a spot for you.
Before you book
Targeted areas of 5–20 linear feet generally run $6,000–$17,000. Larger jobs over 30 linear feet generally run $24,000–$40,000. We confirm the real scope and fixed price after seeing the property.
Not always. The work depends on where water is entering and which system solves it. We inspect first and only recommend the excavation the source actually requires.
A small crack can still let water travel along the footing or signal a larger drainage issue. An assessment tells you whether it needs work now or simply monitoring.
Timing depends on the size and type of repair. We explain the expected schedule in the written plan before you commit.
If water still gets in where we worked, we come back and make it right. Our workmanship is guaranteed in writing.
We can provide current insurance information before work begins. Waterproofing and foundation crack repair carry a 26-year transferable guarantee.
Free Sudbury site inspections are available Monday or Tuesday, with appointment slots at 11am or 2pm. Book now and we will confirm the next available time.
Someone who can show us the basement and answer questions should be there. That lets us inspect the walls, footing, drainage and sump properly and explain the plan in person.
One clear assessment. One honest answer. A plan you can act on.
Call or book: 705-562-4999
P.S. Water always finds the weak spot, and it usually does it during the first big rain or spring thaw. The cheapest repair is the one you do once. Book the free assessment now, even if you are not ready to fix it this month.