How much does it cost to paint a house?” is one of the first questions homeowners ask, and one of the hardest to answer in a single number. In the Katy and West Houston area, the honest answer is that it depends on the size of your home, the surfaces involved, how much prep is required, and the quality of the paint. Still, you deserve real ballpark figures before you start calling around. This 2026 breakdown walks through what drives the price, typical ranges for interior and exterior work, and how to make sure the quote you get is one you can trust.
WHAT ACTUALLY DRIVES THE PRICE
Before any numbers, it helps to understand what a painter is really pricing. Four factors move the total more than anything else.
Square footage and layout come first: more wall and surface area means more labor and material. Tall two-story entryways, lots of trim, and detailed architectural features all add time. Surface type matters too, since smooth drywall, textured walls, brick, stucco, and wood siding each take paint differently and call for different products. The condition of those surfaces is the quiet budget-buster, because peeling paint, water damage, cracked caulk, or rotten trim all require repair before a drop of paint goes on. Finally, paint quality and number of coats affect both the price and how long the results last. Two coats of a premium exterior product cost more up front but hold up far better in Houston’s sun and humidity than a single thin coat of builder-grade paint.
TYPICAL EXTERIOR PAINTING COSTS IN KATY
For exterior work, most Katy homeowners in 2026 land somewhere between roughly $1,700 and $3,700, with the average job around $2,600. Larger or more complex homes cost more: a standard two-story home in one of Katy’s newer master-planned communities often runs closer to $4,800 to $7,200 once you account for height, trim detail, and full surface prep. Measured per square foot, exterior painting generally falls in the $1.50 to $4-plus range depending on siding type and condition.
Brick and stucco can shift the number in either direction. Painting masonry requires breathable, specialized coatings and careful prep, so it is rarely the cheapest option, but it can dramatically modernize an older brick home. Homes with a lot of wood trim, fascia, and soffit also trend higher because those areas need scraping, caulking, and sometimes repair before painting.
TYPICAL INTERIOR PAINTING COSTS
Interior projects in the greater Houston area average around $2,000, with most falling between roughly $950 for a room or two and $3,200 for a larger whole-home repaint. Per square foot, interior wall painting typically runs about $1.50 to $3.00, climbing toward $2 to $6 when you factor in heavy prep, ceilings, trim, and premium finishes.
Rooms with more detail cost more to paint well. Kitchens and bathrooms often need moisture-resistant products and extra cutting-in around cabinets, tile, and fixtures. Repainting ceilings, adding accent walls, or refinishing trim and doors all add to the total but also make the finished result look complete rather than half-done.
THE HOUSTON HUMIDITY FACTOR
One cost driver is easy to overlook until it causes problems: our climate. Houston’s humidity and heat are hard on paint, and they raise the importance of prep. Proper washing, scraping, sanding, and priming can add roughly $0.50 to $0.75 per square foot, but that prep is exactly what keeps exterior paint from peeling and blistering a year later. Newer construction in Katy often needs less prep and lands toward the lower end of the ranges above, while older homes with sun-faded or chalking paint need more. Paying for thorough prep is not an upsell; it is the difference between a finish that lasts two years and one that lasts eight.
WHY THE CHEAPEST QUOTE IS RARELY THE CHEAPEST
When two bids are hundreds of dollars apart, the gap is almost always hiding in what is left out. A lower number often means one coat instead of two, minimal or skipped prep, cheaper paint, or vague terms that leave room for surprise charges once the work begins. A slightly higher bid that spells out two coats, full prep, quality products, and a clean, protected job site frequently costs less over the life of the paint because you are not repainting in a couple of years. The goal is not to find the lowest price; it is to find the best value and the fewest surprises.
HOW TO GET A NUMBER YOU CAN TRUST
Online ranges like the ones above are useful for setting expectations, but they cannot price your specific home. The best way to know your real number is a walkthrough and a detailed written estimate from a painting company in Katy that inspects your actual surfaces, measures the space, and asks about the finish you want. A trustworthy estimate should clearly list which surfaces are included, how many coats, what prep is covered, and which products will be used, so you can compare bids on equal footing.
When you request quotes, share as much detail as you can up front: the approximate square footage, whether it is interior, exterior, or both, the surface types, and any known problem areas like peeling trim or water stains. The more a painter knows before the walkthrough, the more accurate the estimate, and the fewer change orders you will see later.
THE BOTTOM LINE
For most Katy-area homes in 2026, budget roughly $1,700 to $3,700 for a typical exterior job and around $950 to $3,200 for interior work, with larger homes, premium finishes, and heavy prep pushing costs higher. Those ranges are a starting point, not a final answer. Treat the price as a reflection of scope and quality rather than a number to minimize, insist on a clear written estimate, and you will end up with a fair price and a finish built to last through Houston’s demanding weather.
