Painting looks like the simplest trade. It isn’t. A professional paint job involves surface preparation, primer selection, product knowledge, ventilation management, and application technique — and the difference between a paint job that looks great for ten years and one that starts peeling in two is almost entirely in those invisible steps that happen before the brush ever touches the wall.
It’s also the trade where homeowners most frequently discover that the cheap quote delivered exactly what it cost. Shortcuts in prep, thin coats, incorrect products, poor masking — these don’t show up on the day of the job. They show up six months later, in the form of peeling trim and blotchy walls you now have to live with.
The questions in this guide are organized by stage. They apply whether you’re painting a single room, refreshing the exterior of your home, or hiring a crew for a full interior repaint.
“Ninety percent of a professional paint job is preparation. Anyone can apply paint. The skill — and the time — is in cleaning surfaces, filling holes and cracks, sanding, priming the right areas, and masking carefully. When a quote is dramatically lower than the others, it’s almost always because preparation has been cut. You just won’t know it until the paint starts failing.”
— Alex from Best in West Painting, painting specialist with over 20 years of experience providing residential and commercial painting services in Edmonton, focused on quality craftsmanship, reliable service, and long-lasting results
Table of Contents
Before You Call Anyone
Interior or exterior — or both?
Interior and exterior painting involve different products, different preparation requirements, different weather constraints, and sometimes different specialists. Be clear about the scope before inviting quotes. If you’re doing both, ask whether the same crew handles both or whether you’re dealing with specialists for each.
What condition are the surfaces in?
The condition of your surfaces determines how much preparation is needed — and preparation is where most of the time and cost in painting lies. Before inviting quotes, do a walk-around:
- Are there cracks, holes, or damaged areas in walls or ceilings that need patching?
- Is existing paint peeling or bubbling?
- Is trim in good condition, or does it need sanding and priming?
- On exterior surfaces, is there peeling, chalking, mildew, or bare wood exposed?
A surface in poor condition requires significantly more prep — and a quote that doesn’t account for that prep is hiding the real cost.
Questions to Ask Before Hiring
Are you a licensed business with liability insurance and workers’ compensation coverage?
Painting doesn’t require a regional trade licence the way electrical or plumbing does — but any painting contractor operating a legitimate business should hold a valid business registration, tax-registration number, and carry proper insurance. For exterior painting involving ladders and scaffolding, workers’ compensation coverage is essential.
Ask for a certificate of insurance and a workers’ compensation coverage Clearance Certificate. Verify both.
What a good answer looks like: A registered business with verifiable insurance, workers’ compensation coverage clearance, and a tax-registration number.
How long have you been in business, and do you specialize in this type of work?
Interior residential painting and exterior painting require different skills and different products. Commercial and residential painting have different demands. Ask specifically how long the contractor has been painting and whether they specialize in the type of work you’re hiring for.
What a good answer looks like: Demonstrated specialization in your project type, with verifiable references from similar work.
Will you or your crew be doing the work?
Many painting contractors subcontract jobs to crews they don’t directly employ or supervise. Ask who specifically will be painting — the person you’re meeting with, their own employees, or a subcontracted crew. If subcontracted, who supervises the work and is that supervisor on site?
What a good answer looks like: A clear answer about who does the work and who is responsible for supervising quality.
For more: Questions to Ask a Painter for References and Past Work
Questions About the Quote
What surface preparation is included?
This is the single most important question in any painting quote. Ask the contractor to describe exactly what prep work is included:
- Will all surfaces be cleaned (interior walls wiped down, exterior surfaces power washed)?
- Will holes and cracks be filled and sanded?
- Will trim be sanded before painting?
- Will surfaces be primed where needed?
- How will the existing paint condition be addressed if it’s peeling or poorly adhered?
A detailed answer to this question tells you whether the contractor plans to do the job properly. A vague answer — “we do all the prep” — tells you nothing.
What a good answer looks like: A specific list of prep steps tied to the actual condition of your surfaces.
What paint products will you use?
Ask specifically: what brand, product line, and sheen level are being proposed for each surface? There is an enormous quality range in paint — from entry-level builders’ grade to premium products that provide better coverage, better durability, and better washability. A contractor who uses premium products charges more, but delivers results that last.
For a full breakdown: Questions to Ask a Painter About Paint Products
What a good answer looks like: Specific product names — not just “Benjamin Moore” but “Benjamin Moore Aura, eggshell finish” — with a rationale for why they’re appropriate for each surface.
What is and isn’t included in this quote?
Ask specifically whether the quote includes: moving and protecting furniture, patching holes and cracks, priming, painting all coats (how many?), painting trim and ceilings, and cleanup. Each of these can be excluded from a low quote.
How many coats are included?
A professional paint job on previously painted surfaces typically requires one coat of primer (on bare or stained areas) and two coats of finish paint. A single-coat job is rarely adequate for full coverage or long-term durability. Ask explicitly how many coats are included for each surface type.
What a good answer looks like: Two finish coats as standard, with primer on bare wood, new drywall, and stained areas.
For more: Questions to Ask When Getting a Painting Quote
Questions About Exterior Painting
Exterior painting has additional considerations — surface preparation in particular is more complex and more consequential.
How will surfaces be prepared before painting?
Exterior prep should include: power washing to remove dirt, chalking, and mildew; scraping all loose and peeling paint; sanding rough edges; spot-priming bare wood; and caulking gaps at trim, window frames, and siding joints. Ask specifically what each of these steps looks like for your home.
What exterior products are being used?
Exterior paint must withstand UV exposure, temperature cycling, moisture, and, freeze-thaw cycles. Ask what specific exterior paint product is being used, what its warranty is, and why it’s appropriate for your siding material (wood, vinyl, stucco, etc.).
What is the weather policy?
Paint should not be applied in temperatures below 10°C (some products allow lower), in direct sunlight on hot days (causes blistering), or when rain is forecast within 24 hours. Ask about the contractor’s weather policy and how delays are communicated.
For more: Questions to Ask a Painter About Exterior Painting
Questions About Warranties
Do you stand behind your work with a written warranty?
A professional painter should offer a written warranty on their workmanship — covering peeling, bubbling, or adhesion failure that results from how the paint was applied. Ask for it in writing. One to two years is standard; reputable painters offer more.
For a full breakdown: Questions to Ask a Painter About Warranties
Red Flags to Watch For
Dramatically lower price than other quotes. Preparation time is where shortcuts hide. A quote significantly below market almost always means prep has been cut — which shows up in the finish six months later.
Unable to name specific paint products. A contractor who can’t or won’t name the specific paint being used is hiding information about quality.
Quoting without seeing the job. For any significant painting project, an accurate quote requires a site visit. A phone quote on an interior repaint is guesswork.
Cash only, no contract. A professional painting business operates with written contracts and proper invoicing. Cash-only with no paper trail leaves you no recourse.
Single coat only. One coat of finish paint is almost never sufficient for a quality result. A contractor who quotes single-coat as standard is cutting corners.
For a full guide: Red Flags When Hiring a Painter
Before They Start: A Quick Checklist
- Business registration and insurance verified
- Workers’ compensation coverage clearance received and verified
- Written quote with specific prep steps, products, and number of coats
- Furniture and floor protection discussed
- Timeline and daily work hours confirmed
- Payment schedule agreed in writing
- Warranty terms in writing
Related Questions
- Questions to Ask a Painter for References and Past Work
- Questions to Ask a Painter About Paint Products
- Questions to Ask When Getting a Painting Quote
- Questions to Ask a Painter About Exterior Painting
- Questions to Ask a Painter During the Job
- Questions to Ask a Painter About Warranties
- How Much Does It Cost to Paint a House ?
- Red Flags When Hiring a Painter
- What to Do If a Painter Does Bad Work
- How Do I Know If My Home Needs to Be Repainted?
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