Interior Painting Without the Upheaval
A.G. Williams Painting Company paints interiors in occupied homes, including single rooms, trim and ceilings, stair halls, and whole-home repaints. The plan is built with you, so you can keep living in your home while the work happens.
- Daily closeoutRooms left clean and usable every evening
- Repair and primePatch, sand, and prime before any finish coat
- 5-Year Residential Paint WarrantyOn all residential painting
- Career paintersFull-time craftsmen, employed and insured

Service Overview
Interior Painting
Interior work touches the rooms you live with every day, so the finished result has to hold up to daylight and close inspection. We plan protection, prep, finish coats, and communication before work begins, and you help decide the sequence.
A.G. Williams is licensed and insured, and has painted interiors across Westchester County, the lower Hudson Valley, and Fairfield County since 1906.


What Interior Work Includes
Protection first
Floors, furniture, fixtures, and millwork are masked and covered before any prep begins, so the home stays livable while the work happens.
Surface repair
Cracks, nail pops, and dents are patched and sanded, and bare areas are primed. Repair costs are itemized, and you approve them before work proceeds.
Clean, straight edges
Where wall color meets trim, ceilings, and corners, our painters paint the edge by hand, so every line is crisp and straight in every room.
Trim, doors, and ceilings
Baseboards, casings, doors, and ceilings are handled as part of the scope, not an afterthought.
Color and sheen guidance
You select colors before the job starts. We help match sheen to the room: flatter finishes for ceilings and low-light walls, and more durable finishes for trim, kitchens, and high-traffic areas.
Daily closeout
Each day ends with the work area cleaned up, tools stored, and walkways clear, so evenings at home feel normal.




How an Interior Project Runs
Walkthrough
We walk the home with you and confirm rooms, colors, surface condition, and which spaces need the most protection, including where pets will stay while we work.
Written proposal
You receive a written proposal, typically within a few business days, that separates prep, painting, and any optional repairs so you can compare choices clearly.
Room-by-room work
You help decide the sequence so the rest of the home stays usable. A field supervisor meets you before work begins, and you have direct phone numbers for the field supervisor and crew leader.
Walkthrough closeout
We review touch-ups and the finish together before the protection comes up and the rooms go back to use, and we confirm warranty terms and who to call later.
Why Interior Prep Is Most of the Job
Interior work touches the rooms you use every day, so the details are unforgiving. Careful masking, properly repaired surfaces, and crisp edges where colors meet are what make a finished room read clean instead of patchy. Sheen looks even because the right product is applied to a properly prepared surface. Most of that quality is decided before the finish coat ever goes on.
See the Difference in the details.
A kitchen before and after its interior finish work. Move the slider to compare the change.


Customer perspective
What clients remember after the work is done.
“I had most of the interior of my house painted by A.G. Williams. The team was professional, efficient, and courteous. The team lead, Ezequiel, was friendly, helpful, and walked me through everything the team had done each day and what they would do the next day. I highly recommend them.”
Michael P. · Yorktown Heights, NY
EPA-Lead Safety
Working in a pre-1978 home? Understand the lead-safe plan before work begins.
Learn how age, preparation, containment, dust control, cleanup, and professional assessment fit into the project.
Warranty and Financing
Backed in Writing, with Financing if You Want It
Every residential painting project is backed by the 5-Year Residential Paint Warranty. Financing options are available; ask about 0% plans through Wisetack, subject to credit approval and published terms. Payment options through Wisetack are provided by Wisetack’s lending partners.
Interior Painting Questions
Can we stay in the house during the work?
Yes. The plan is built with you, so you can keep living in your home while the work happens. You help decide the sequence, occupied spaces are protected, and each day ends with the work area cleaned up.
What about our pets?
Tell us about your pets during the walkthrough. We plan each day’s work areas around where they stay, keep doors and gates in mind, and confirm the plan with you before painting starts.
Do you repair walls before painting?
Yes. Cracks, nail pops, and dents are patched and sanded, and bare areas are primed before any finish coat. Repair costs are itemized in the proposal, and you approve them before work proceeds.
Do you move the furniture?
We move and center furniture within each room and cover it completely. During the walkthrough we will flag anything fragile or unusually heavy and agree on how to handle it.
How long does a typical room take?
It depends on the room’s size, the amount of repair, and the number of colors and coats. The proposal lays out the expected sequence for your project, and the crew leader keeps you updated as work progresses.
How do you keep dust and mess under control?
Floors, furniture, and fixtures are covered before prep begins, sanding areas are contained, and each day ends with a cleanup. Rooms are left clean and usable every evening.
Who picks the colors?
You do, before the job starts. We help you settle sheen and finish choices, including where flat, eggshell, or semi-gloss makes sense, so the result holds up in each room.
Can you paint over wallpaper?
No. Wallpaper must be removed before the wall is painted. We handle wallpaper removal, wall repair, and repainting in a single scope.
Do you paint trim, doors, and ceilings too?
Yes. Baseboards, casings, doors, and ceilings are part of the scope, and the proposal itemizes each so you can decide what to include.
Is the work warrantied?
Yes. Every residential painting project is backed by the 5-Year Residential Paint Warranty. The terms are reviewed with you at the final walkthrough.
Can I finance the project?
Yes. Financing options are available; ask about 0% plans. Financing is offered through Wisetack, subject to credit approval and published terms.
What happens if something isn’t right after the job?
We come back and fix it. Standing behind the work is part of the job, and it is why families have hired us across generations.
Already Scheduled?
Preparation and Care Guides
Use the instructions for your scheduled project, or contact your field supervisor if you are unsure which guide applies.
- Interior painting preparationBefore your project
Start with a Walkthrough
Tell us about the rooms on your list, and we will walk the home with you and prepare a written proposal.
Request a Proposal