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Reading and Comparing Written Painting Estimates
You asked three painters to look at your house and now three estimates sit on the table. One is a single page with a total at the bottom. One is four pages of line items. The third falls somewhere in between. The totals differ, sometimes by a wide margin, and the natural instinct is to compare the bottom lines. That comparison tells you almost nothing until you know whether the three documents describe the same job.
In practice they rarely do. One contractor planned to replace failed caulk everywhere, another only where it is cracked. One priced two finish coats, another one. One included the detached garage and the other assumed it was out of scope. Reading estimates well is mostly the work of turning three different descriptions into one comparable picture.
Start by building your own scope list
Before you read any estimate closely, write down what you want done. Keep it simple: which rooms or elevations, which surfaces in each (walls, ceilings, trim, doors, cabinets, eaves, fascia, railings, fences), and anything specific you know about, such as a water-stained ceiling in the hall or peeling paint on the south-facing window sills. This becomes the checklist you hold each estimate against.
If you did not give every contractor the same scope at the walkthrough, this is why the bids diverge. It is reasonable to send your written list to each contractor and ask them to revise their estimate against it. Good painters welcome that because it makes their bid easier to defend.
The parts of an estimate worth reading line by line
Surfaces included and excluded
Look for an explicit list of what is painted. Then look for an exclusions line. Exclusions are normal and honest: many estimates exclude closet interiors, the inside of cabinets, window sashes, or surfaces such as brick and stone that you may not want painted. The risk is an estimate that simply does not mention a surface. Silence leaves room for disagreement later. If the garage door, gutters or downspouts are not listed either way, ask.
Preparation
Preparation is where estimates vary most and where the lowest bid often saves money. Look for specific language about washing, scraping loose paint, sanding glossy surfaces, patching holes and cracks, replacing failed caulk, spot priming bare areas, and masking or covering floors, fixtures and landscaping. Vague phrases such as "standard prep" or "prep as needed" do not tell you what you are buying. Ask each contractor to describe in plain words what they will do to the worst area of your house.
Primer and coats
Count the coats. An estimate might say one coat of primer on bare or patched areas plus two finish coats, or it might say one finish coat. Both can be appropriate in some situations, but they are different jobs and they should not be priced as if they were the same. If a contractor proposes one coat, ask why they believe it is enough for your surfaces and color change. Going from a dark color to a light one, or covering a stain, usually changes the answer.
Products named
A strong estimate names the manufacturer, the product line and the sheen for each surface type. A weak one says "premium paint." Product lines within a single manufacturer range widely in what they are designed for, so the product name is part of the price. When two estimates name different product lines, you can look up each one's intended use yourself. In the Los Angeles basin, architectural coatings must meet South Coast AQMD VOC limits, so any product a legitimate contractor proposes should comply, but it is still reasonable to ask.
Repairs and carpentry
Painting estimates sometimes include minor carpentry such as replacing a section of rotten trim, or sometimes they exclude it and quote it as extra work if found. Neither is wrong. What matters is how the estimate handles surprises. Look for language saying that hidden damage discovered during prep will be shown to you and priced in writing before any repair is done.
Lead-safe work practices
If your home was built before 1978, the estimate should say whether lead-safe work practices under the EPA RRP rule are included. Containment, cleanup and verification take time and materials. A bid that ignores them on an old house is either underpriced or planning to skip them.
Cleanup and protection
Look for a clear statement about daily cleanup, removal of debris, protection of plants and hardscape, and who moves furniture. These details rarely drive large price differences, but they drive a lot of frustration if they are left out.
Line the estimates up side by side
The simplest tool is a grid. Put your scope items down the left side and each contractor across the top. For each cell, note what the estimate says: included, excluded, not mentioned, or a specific detail like "two coats" or "spot prime only." Once the grid is filled in, the differences in the totals usually start to make sense. The lowest bid may exclude the eaves. The highest may include replacing all caulk and three coats on the south wall.
Anything marked "not mentioned" goes on a short list of questions. Send those questions to each contractor in writing and ask them to answer in writing, ideally in a revised estimate. A verbal "yes, that's included" is easy to forget once the job starts.
What the total does and does not tell you
After you have normalized the scope, a remaining gap in price can reflect crew size, how long the contractor expects the job to take, the quality of the product line, overhead such as workers' compensation and liability insurance, and how busy the contractor is. A lower number is not automatically a better deal, and a higher one is not automatically better work. What you are trying to find is the estimate whose scope matches what you want and whose contractor you trust to carry it out.
Be cautious about an estimate that is far below the others once scope is aligned. Very low bids sometimes depend on skipping prep, thinning paint, using an uninsured crew, or recovering the difference later through change orders. Ask the low bidder directly how they arrive at their price. A clear answer is reassuring. A vague one is informative too.
Timing, validity and schedule on the estimate
Most estimates state how long the price is valid. Material costs change, and a contractor's calendar fills up, so a price given in spring may not hold through the end of summer. Note the expiration date. Also look for an estimated start window and duration. These are not promises, but a contractor who can describe a realistic timeline has usually thought about how the job will actually run.
Turn the chosen estimate into the contract
Once you pick a contractor, make sure every clarification you collected ends up in the written contract, not just in an email thread. The product names, coat counts, prep details, exclusions and the process for hidden damage should all carry over. The estimate is a proposal. The contract is what both of you will point to when a question comes up in the second week of the job, so it should say everything the estimate taught you to ask.