Fixing a failing basement in Hamilton costs anywhere from $500 for a single crack injection to $40,000 for full exterior waterproofing - a wide range that narrows fast once a project manager actually sees your foundation. Here's exactly what the free assessment covers, what moves your number inside that range, and how to book yours today at (647) 692-2131. No guesswork, no upsells - just a diagnosis and a fixed-price plan.
What the Free Assessment Actually Covers
A project manager visits your home, inspects every foundation wall for cracking, bowing, and moisture staining, checks the grading around your home's perimeter, and evaluates the condition of any existing weeping tile or sump pump. That visit identifies exactly where and how water is entering - not a guess, a diagnosis - and a written fixed-price proposal follows, often the same visit and always within 48 hours.
Fixed-price means fixed. No ranges in your final contract and nothing new on the invoice once it's signed - only a pre-approved change order if something genuinely unexpected turns up once work starts.
There's no charge for the visit and no pressure to sign anything on the spot - the goal is to give you an accurate number so you can make the decision on your own timeline.
What Actually Moves the Price
Which Sign You're Dealing With
A single hairline crack is a $500-$2,000 injection job. A wall showing early bowing is a $3,000-$8,000 carbon fibre reinforcement. Active water entry across a wall is an $8,000-$20,000 interior drainage system. The sign determines the scope before price ever enters the conversation.
Access, Depth & Bundled Work
Tight side-yard access for excavation equipment, foundation depth, and whether a sump pump or discharge line needs to be added all shift where you land inside each range - the assessment accounts for your specific property.
From Diagnosis to Dry Basement: What Happens Next
Once you approve the written proposal, scheduling typically happens within one to two weeks depending on scope. Simple crack injections can often be completed the same week. Interior drainage installs run two to four days. Exterior waterproofing with excavation takes longer and may require a City of Hamilton permit depending on depth - BaseWorks determines that at the assessment and manages the entire permit process for you, so it's never something you have to navigate on your own.
Every crew is a BaseWorks crew - no subcontractors handing your project off to someone else partway through. The same people who diagnosed the problem at the assessment are accountable for the fix, and every job is inspected before we consider it complete.
Typical Cost Breakdown by Sign
Here's how the numbers actually break down once the assessment identifies which sign your basement is showing:
- Single hairline or shrinkage crack: $500 to $2,000 per crack injection - usually completed same-day, no permit typically required
- Early wall bowing or lateral movement: $3,000 to $8,000 for carbon fibre wall reinforcement - 2 to 5 days of work
- Active water entry through a wall or floor: $8,000 to $20,000 for a full interior drainage system - 2 to 4 days, backed by a 10-year warranty
- Water entering from multiple exterior points or failed exterior membrane: $15,000 to $40,000 for exterior waterproofing with excavation - timeline varies with access and depth
- Settlement combined with water entry: may require full underpinning at $45,000 to $90,000, quoted separately after a structural assessment
Most homes need exactly one of these, not a combination - which is precisely why the free assessment matters more than any online price range. It tells you which line item actually applies to your house before you spend a dollar.
Why Hamilton Homeowners Choose BaseWorks
Every waterproofing job we quote comes with a written, fixed-price contract - not a range, not a "starting at" figure that grows once work begins. Permits are pulled and managed by us whenever the scope requires one, and structural recommendations carry an engineer's stamp when the work calls for it. We run our own crews rather than handing your project to a subcontractor, and interior drainage installs are backed by a 10-year warranty on materials and workmanship. It's the same standard whether the job is a $500 crack injection or a $30,000 exterior waterproofing project.
Why Waiting Costs More
Hamilton's freeze-thaw winters don't pause for a homeowner who wants to wait until spring to call. A 2mm crack today can become an 8mm crack within three years as water repeatedly enters, freezes, and forces it wider each winter - turning a $500 to $2,000 fix into a $3,000 to $8,000 one, or worse. Water damage compounds the cost further through mould remediation and ruined flooring. The earlier the assessment happens, the smaller the number tends to be.
There's also a resale angle worth considering. A disclosed, professionally repaired crack with a warranty on file reads very differently to a buyer's home inspector than an unrepaired one discovered during a sale. Fixing it now, on your own timeline, is almost always less stressful and less costly than fixing it under pressure during a real estate transaction.
DIY Patch vs. Professional Assessment
A tube of hardware-store concrete caulk can mask a hairline crack for a season, but it sits on the surface rather than filling the crack's full depth, and it won't stop water that's under real hydrostatic pressure. It also tells you nothing about whether the crack is cosmetic or the first visible sign of a bigger structural issue. A professional assessment costs nothing, takes about the same amount of your time as a trip to the hardware store, and actually answers the question a DIY patch can't: is this sign going to get worse, and if so, by how much and how fast - and what it will actually cost to fix properly, in writing, before you spend anything.
Book Your Free Assessment If...
Call (647) 692-2131 or request your free assessment online - a project manager will confirm the exact cause and give you a fixed-price plan to fix it, in writing, before you commit to anything. Most calls made before noon can be scheduled for an assessment within the same week.
Frequently Asked Questions
Yes. A project manager visits your home, diagnoses the water entry point, and provides a written fixed-price proposal within 48 hours - at no cost and no obligation to book the work.
Most Hamilton-area assessments are booked within a few business days of the initial call, and sooner for active water entry. Call (647) 692-2131 directly for the fastest scheduling.
No. BaseWorks writes every contract fixed-price after the assessment. The only exception is a pre-approved change order if something unexpected - like undocumented prior damage - turns up once work is underway, and that never happens without your sign-off first.
No. That's exactly what the assessment determines. The project manager diagnoses your specific water entry point and recommends interior drainage, exterior waterproofing, or a combination based on what's actually happening at your foundation.
BaseWorks handles both under one roof. If the assessment turns up a structural sign - a bowing wall or horizontal cracking - that gets flagged and quoted alongside the waterproofing fix, so you get one proposal instead of two separate contractors.
No. BaseWorks runs its own crews for every waterproofing project, from the initial assessment through the final inspection. The people who diagnose your basement are accountable for the fix - there's no handoff to a third party partway through.
Absolutely, and we'd encourage it. Because the BaseWorks assessment identifies the specific cause of your water entry in writing, it also gives you a clear, apples-to-apples reference point to compare against any other quote you collect - no pressure to decide on the spot.