Before you hire Ontario epoxy installers, 7 mistakes to watch for
How to use this checklist before you get a quote
This checklist names seven specific mistakes and decision checks you can use when comparing bids from Ontario epoxy installers. Read the short summary at the start of each numbered item, then use the on‑site questions and the list of documents to request. Bring a printed copy to any site visit so you compare every contractor on the same criteria.
When a claim touches contract law, lien risk, or consumer protections, I link to provincial guidance you can read for yourself. For technical installation details and product documentation, I reference supplier and industry checklists you can ask the installer to produce.
-
No written contract or vague contract terms
Why it matters: Verbal promises and minimal contracts create disputes and leave you exposed to unexpected costs, timeline changes, or lien claims. Ontario guidance for home service contracts shows what homeowners should insist on in writing before allowing work to begin.
What to ask on site: "Can you provide a written, itemized contract that lists the full scope of work, start and completion dates, the payment schedule tied to milestones, cancellation and remedy terms, and whether you intend to register any security interest on my property?"
Documents to require: a signed itemized contract that names tasks (for example diamond grinding, crack repair, primer, base coat, broadcast, top coat), a clear payment schedule tied to measurable milestones, a cancellation clause, and an explicit statement about liens or security interests. Ask for the contractor's business registration number and a written warranty clause that defines what is covered and for how long.
What to watch for: vague language such as "surface prep as required" or open payment terms like "balance due on completion" without milestones. If the contractor resists a written scope or uses a one‑page receipt as a contract, treat that as a warning sign. For provincial consumer guidance, see the Ontario government page on home service contracts Ontario government guidance.
-
No proof of business insurance or WSIB clearance
Why it matters: If someone is injured on site or the crew damages your property, liability insurance protects you from being left with a bill. For commercial projects, WSIB clearance or equivalent worker coverage is essential to avoid secondary liability for unpaid premiums or claims.
What to ask on site: "Please show a current certificate of liability insurance that names your company, the insurer, policy number, coverage limits, and expiry date. For commercial work, show WSIB clearance or explain equivalent worker coverage."
Documents to require: a certificate of insurance, a WSIB clearance letter or clearance certificate number, and an insurance contact for verification. Call the insurer or WSIB if you have doubts. Contractors who hesitate to provide these documents are risky hires.
Reference: contractor vetting checklists for Ontario recommend verifying liability insurance and WSIB status before hiring How to choose a contractor in Ontario.
-
Surface preparation is downplayed or described vaguely
Why it matters: Long‑lasting adhesion depends on proper preparation. Diamond grinding to remove weak surface layers, cleaning to remove oils and salts, repair of cracks and spalls, and correct priming are the foundation for durable epoxy and polished concrete systems. Shortcuts in prep are a leading cause of peeling, bubbling, and early failure.
What to ask on site: "Walk me through the surface preparation steps for this slab. Will you diamond grind, remove contamination, profile the concrete, repair cracks and spalls, and apply a primer? Can you show photos of the prep stage from a similar recent job?"
Documents to require: a written scope that specifies prep methods (for example diamond grinding, shot blasting if used, or mechanical scarifying), a list of repair materials, and before‑and‑after photos of prep work. If the installer offers a lower price by omitting grinding or by using acid etching, ask why and treat that as a red flag.
Example sign of good practice: clear evidence of consistent grinding patterns, clean edges where coatings meet walls, and documented repairs prior to coating. JLN Epoxy emphasises rigorous surface prep, diamond grinding, and crack repair as the foundation of long‑lasting floors JLN Epoxy.
-
Installer ignores moisture, temperature, and environmental controls
Why it matters: Epoxy systems have specific substrate and ambient conditions for proper mixing, application, and cure. High substrate moisture or cold concrete can prevent bonding and cause blistering or poor cure. A competent installer will test moisture, record temperature conditions, and have a contingency plan if conditions are unsuitable.
What to ask on site: "What are the acceptable substrate moisture levels and concrete temperatures for the system you plan to use? Will you perform documented moisture tests and temperature readings before work starts? How will you proceed if results are outside the acceptable range?"
Documents to require: recorded moisture test results and method used, ambient and slab temperature readings, and the installer's written contingency plan. Typical test methods include in‑situ relative humidity or surface moisture readings, so ask which method the installer uses and to provide the results in writing.
What good answers sound like: the installer names a test method, shows recent readings for your slab, and explains options such as drying, using a moisture mitigation system, or rescheduling. See practical installer questions about climate and testing in the Toronto context Questions to ask an epoxy contractor and supplier guidance on environment concerns How to choose the right epoxy supplier.
-
No technical data sheets, safety data sheets, or product names provided
Why it matters: Performance, aftercare, and coverage depend on the exact materials used. You should have product names, the technical data sheet (TDS) for performance specifications, and the safety data sheet (SDS) for handling, ventilation, and disposal. These documents let you compare bids on an apples‑to‑apples basis.
What to ask on site: "Provide the brand and model names of every product you will apply, plus printed or digital copies of the TDS and SDS. What realistic coverage will you achieve per coat on this surface?"
Documents to require: TDS and SDS for primer, base coat, flakes or metallic system, and top coat, and a written coverage estimate tied to the TDS figures. If a contractor refuses to name products or supply data sheets, treat that as a strong warning sign.
Supplier guidance recommends that installers supply TDS and SDS and explain realistic coverage and stock availability when quoting How to choose the right epoxy flooring supplier.
-
Vague payment schedule, large up‑front deposit, or undisclosed lien risk
Why it matters: Risky payment terms reduce your leverage if work is incomplete or defective. Ontario checklists warn against cash‑only deals, very large deposits, and sellers who discourage written receipts. You should also know whether the contractor intends to register a lien or security interest.
What to ask on site: "What deposit do you require, and why? Provide a payment schedule that links each payment to a measurable milestone. Will you register any lien or security interest on title, and under what conditions?"
Documents to require: a contract payment schedule that ties payments to milestones, a receipt policy, and an explicit statement about liens or security interests. Acceptable deposits are typically modest and tied to material purchase, not large unconditional sums. If a contractor insists on a large cash deposit or refuses to document the schedule, consider other bids.
Reference: the Ontario government consumer guidance and contractor vetting advice recommend avoiding cash-only deals and excessive upfront payments Ontario government guidance, How to choose a contractor in Ontario.
-
Weak references, no portfolio, or refusal to show finished projects
Why it matters: Photos and client references reveal workmanship details that do not show up on a bid: edge detail, consistency of flake broadcast, and evidence of thorough prep. A contractor who refuses to share recent, comparable jobs or gives only generic photos may be concealing poor workmanship.
What to ask on site: "Can you provide three recent references for projects of similar scope and photos showing prep, mid‑install, and finished edges? May I contact those clients or visit a recent local job?"
Documents to require: a dated portfolio with before, during, and after photos, client contact information for references, and if available, short videos showing the prep stage. When possible, verify at least one reference by phone and ask specific questions about timeliness, cleanliness, and whether the finish held up.
Reference: contractor selection advice recommends checking references and comparing scope rather than price alone How to choose a contractor in Ontario. JLN Epoxy documents prep and finish standards on its site for comparison JLN Epoxy.
Next steps and an on‑site checklist you can use
Quick on‑site checklist you can tick off as you meet installers:
- Ask for an itemized, signed contract that names scope, start and completion dates, and milestone payments.
- Request a current certificate of liability insurance, insurer contact, and WSIB clearance if applicable.
- Confirm specific surface prep methods such as diamond grinding and documented crack repairs.
- Demand recorded moisture and temperature test results and the test method used.
- Collect TDS and SDS for primer, base, flake or metallic system, and top coat, plus coverage estimates.
- Insist on a payment schedule tied to measurable milestones and a written statement about liens.
- Review at least three recent, similar references with dated photos showing prep and finished edges.
Score each quote against these seven checks and choose the installer who provides clear written proof, documented preparation, and accountable payment terms. If you would like an example of a detailed scope and written estimate that includes prep steps and product documentation, contact JLN Epoxy for a free, no‑obligation quote JLN Epoxy.
Frequently asked questions
How do I verify an epoxy installer in Ontario before hiring
Verify identity and status by requesting a signed contract, current liability insurance certificate, WSIB clearance or equivalent, and copies of product TDS and SDS. Ask for documented moisture and temperature tests and for three recent references. Ontario contractor checklists recommend getting at least three itemized quotes and comparing scope, not just price How to choose a contractor in Ontario.
What must be included in a home service contract in Ontario for flooring work
Include a detailed description of the work, start and completion dates, payment schedule tied to milestones, cancellation and remedy clauses, and any statement about liens or security interests. The Ontario government page on home service contracts explains key terms you should confirm in writing Ontario government guidance.
What surface preparation should I expect for a garage epoxy floor
Expect diamond grinding or equivalent mechanical profiling to remove weak surface layers, thorough cleaning to remove oils and salt, repair of cracks and spalls with suitable patch material, and an appropriate primer or base coat. These steps are widely cited as the foundation of long‑lasting epoxy installations and are described in reputable contractor practices such as those shown by JLN Epoxy JLN Epoxy.
Can an installer refuse to show technical data sheets or product names
A reputable installer or supplier will provide TDS and SDS and explain realistic coverage estimates. If an installer refuses to share these documents, treat that as a sign they may be using unspecified or lower‑grade materials. Supplier guidance stresses that TDS and SDS are standard documents and critical when comparing bids How to choose the right epoxy flooring supplier.
Final call to action
If you want a written, site‑specific estimate that includes surface‑prep steps, product TDS and SDS, and an itemized payment schedule, contact JLN Epoxy for a free, no‑obligation quote.
