Planning · 7 min read
How to compare painting estimates, apples to apples
Three quotes to “paint the house” rarely describe the same job. Here’s how to line them up scope against scope and see what each number actually buys.
Key takeaways
- Compare scope before price: every surface, prep step, primer, coat count, product and sheen should be in writing.
- The lowest bid usually covers less work, such as lighter prep, one fewer coat or a cheaper product.
- Big color changes and glossy, oil-based or stained surfaces add primer and labor, so check that every bid accounts for them.
- Ask every contractor who will be on your property, and get a written contract, proof of insurance and, for pre-1978 homes, proof of RRP certification.
Three estimates to “paint the house” rarely describe the same job. One includes ceilings and closets, one assumes a single coat, and one never mentions scraping. The lowest total often buys less prep, fewer coats or a different product, which makes it the price of a smaller job rather than a better deal on the same one. Compare scope first and price second.
Why are painting estimates so far apart?
Labor is usually the largest part of a painting bid, and much of it is preparation: washing, scraping, sanding, patching, caulking and priming. Prep is also the easiest part of a job to leave vague.
A window sash that is scraped, sanded and spot-primed before two finish coats and a sash that gets a quick wipe and one coat can both appear on an estimate as “paint windows.” The difference shows up a few Michigan winters later.
Surfaces, coats and products do the rest. Leave out the ceilings, skip a coat or switch to a cheaper product line, and the total drops quietly.
What should a written painting estimate include?
A good estimate reads like instructions a stranger could follow. Look for these ten things:
- Every surface, by name. Inside: walls, ceilings, baseboards, casings, crown molding, doors (both sides and edges), closets, window sashes, stair railings, radiators. Outside: siding, trim, soffits and fascia, sashes, doors, shutters, porch ceilings and floors, railings. If a surface isn’t listed, assume it isn’t included.
- Prep, in words. “Prep as needed” isn’t a scope. Look for the steps: wash, scrape loose paint, sand edges, fill holes, patch plaster cracks, caulk open joints, spot-prime bare wood. Our guide to why prep is the paint job goes deeper.
- Primer, and where it goes. Bare wood, patched plaster, water stains, glossy or stained finishes and big color changes often call for primer. The estimate should say which surfaces get it, and whether it’s a spot prime or a full coat.
- The number of finish coats. “Two finish coats” can be checked. “Full coverage” can be argued about.
- Products and sheens, by name. Manufacturer, product line and sheen for each surface, such as eggshell walls and semi-gloss trim. One manufacturer’s lines can vary widely in durability, so “quality paint” tells you little. Our paint sheen guide explains the trade-offs.
- Colors, and how many. Each added color means more cutting in, cleanup and time, so the estimate should say how many are included.
- What’s excluded. Wood rot repair, loose plaster, wallpaper removal, window reglazing, moving heavy furniture. Exclusions aren’t a bad sign; unwritten ones are. If repairs get priced after work starts, ask how they’ll be approved.
- Protection and cleanup. How floors, furniture and plantings are covered, whether cleanup is daily, and whether labeled leftover paint stays with you.
- Schedule and duration. A start window, expected working days and a plan for weather delays. Michigan’s exterior season is short, and paint has temperature limits: check the label, since many exterior acrylics need 50°F and rising and some are rated lower.
- Payment terms. The deposit, when progress payments and the balance are due, and how changes get priced and approved in writing before extra work starts.
Our process page shows how we approach a project, and you can request an estimate when you’re ready to compare.
Why do big color changes and glossy trim change the scope?
Both add real work. A bid that ignores them will look cheaper than one that plans for them.
Big color changes
Going from dark to light, or the reverse, often won’t cover in two coats. A pale wall over navy may need a primer first, sometimes tinted toward the new color, or a third coat. Some saturated reds and yellows hide poorly even over light colors, and manufacturers often call for a gray-tinted primer. “Two coats” and “primer plus two coats” are different jobs at different prices.
Glossy, oil-based and stained surfaces
Paint needs something to grip. Many older homes in Grosse Pointe and across Metro Detroit still have original wood trim, often under layers of oil-based paint. Water-based paint brushed straight over a glossy oil finish can peel. The usual approach is cleaning, scuff-sanding or deglossing, then a bonding primer.
Stained or varnished woodwork needs the same care. Tannin-rich woods like oak, cedar and redwood also need a stain-blocking primer, or tannins can bleed through light paint as brownish blotches.
Who will actually be working on your house?
The person who writes the estimate isn’t always the person who shows up with the ladders. Ask each contractor directly: Will the owner be on site? Will the work be done by their own employees, or by subcontractors?
None of those answers is wrong on its own. What matters is knowing who is responsible for the work, who supervises it day to day and who you call with a question.
At Guiffre’s Painting Co., Bob Guiffre and his son, Bobby, work on every project.
What paperwork should you ask a painting contractor for?
Ask every contractor for the same documents, and read them before you sign.
- A written contract. It should match the estimate: surfaces, prep, products, coats, price, payment schedule and start window, plus how changes are handled. A texted number isn’t a contract.
- Proof of liability insurance. It typically covers accidental damage to your home or a neighbor’s during the job. Ask for a current certificate of insurance, ideally sent by the agent, and one for any subcontractor.
- Proof of workers’ compensation coverage. It covers workers hurt on the job, so a fall from a ladder at your house doesn’t become a question of who pays. Requirements depend on how a business is set up, so ask how everyone working on your house is covered.
- Lead-safe certification for older homes. If your home was built before 1978, it may contain lead-based paint. The EPA’s Renovation, Repair and Painting (RRP) rule requires certified firms and lead-safe work practices for paid work that disturbs painted surfaces in pre-1978 homes: more than 6 square feet per room inside, or more than 20 square feet outside. Ask to see the firm’s certification, and ask how the estimate handles containment and cleanup.
- Warranty terms, in writing. If a contractor offers one, ask what it covers, for how long and what voids it, and get it on paper. A “lifetime” warranty on a paint can is the manufacturer’s, and it typically covers the product, not the labor to reapply it.
What are the red flags in a painting estimate?
One of these alone is worth a question. Two or three together usually mean you should keep looking.
- A one-line scope. “Paint exterior, labor and materials” and a total leaves every decision about your house until after you’ve signed.
- A price far below the others. When two bids roughly agree and a third is well under both, something is usually missing: surfaces, prep, a coat, insurance or lead-safe practices.
- Pressure to sign today. A fair estimate gives you time to compare; a price that expires when the estimator leaves is designed to prevent exactly that.
- A large deposit up front. A modest deposit to reserve a date or cover materials is reasonable. Paying for most of the job before work begins leaves you little leverage if it stalls.
- Cash only. Cash with no invoice or receipt leaves no record of what you paid or what was promised.
- No written contract. Without one, it’s your memory of the walkthrough against theirs.
- Vague answers about prep. Ask, “What will you do about the peeling paint on the north side?” Someone who knows the job answers in specifics. “We’ll take care of it” isn’t an answer.
How do you compare painting estimates side by side?
Spread the bids out and go row by row. Where a bid is silent, ask the contractor to answer in writing before you decide.
| What to compare | What to look for |
|---|---|
| Surfaces | Every surface named, from ceilings and closets to soffits |
| Prep | Specific steps in plain words, not “prep as needed” |
| Primer | Which surfaces get it, and why |
| Finish coats | A number for each surface, not “full coverage” |
| Products, sheens and colors | Named product and sheen per surface; number of colors |
| Exclusions | Repairs, wallpaper, reglazing and furniture moving, stated either way |
| Protection and cleanup | Floors, furniture and plantings covered; daily cleanup; leftover paint labeled |
| Schedule | Start window, expected duration, weather plan for exterior work |
| Payment | A modest deposit, payments tied to progress, final payment after a walkthrough |
| People | Who will be on site, and who’s in charge |
| Paperwork | Contract, liability and workers’ comp proof, RRP certification if pre-1978, warranty terms in writing |
When every row is filled in, you’re finally comparing apples to apples. The right price is the one attached to a scope you understand.
Go deeper
- What affects the cost of exterior painting — the factors behind the number.
- What affects the cost of interior painting — rooms, walls and color changes.
- Questions to ask a house painter — before you hire.
- How long it takes to paint a house — and what drives the schedule.
- DIY vs. hiring a painter — an honest comparison.
Questions
How many painting estimates should I get?
Two or three detailed, written estimates are usually enough to see what a fair price looks like for your house. More quotes won’t help if none of them spell out the surfaces, prep, coats and products. Ask each contractor to price the same scope so the totals mean the same thing.
Why is one painting estimate so much cheaper than the others?
Usually because it covers less: fewer surfaces, lighter prep, one coat instead of two, or a less durable product. It can also reflect missing insurance or skipped lead-safe practices on a pre-1978 home. Ask the contractor to walk you through the scope line by line and compare it with the other bids.
Can I ask painters to price the same scope?
Yes, and it’s the clearest way to compare. Write down the surfaces, prep, primer, number of coats and product level you want, and ask each contractor to price that list. A good contractor will price it as written and tell you if they think the house needs something different.