Working Hours: Mon - Fri: 9:00 to 18:00 | Sat - Sun : Closed
Wartime bungalows in St. Catharines, canal-side houses in Welland, guest suites near the Falls — IntraBuild repaints interiors across the whole peninsula from its Mississauga base, on per-sq-ft rates with a written warranty and rooms left clean.

Interior painting is the work IntraBuild carries across all twelve municipalities of Niagara Region — the cities of St. Catharines, Niagara Falls, Welland, Thorold and Port Colborne; the towns of Grimsby, Lincoln, Pelham, Fort Erie and Niagara-on-the-Lake; and the rural townships of Wainfleet and West Lincoln, spread between Lake Ontario and Lake Erie. Every project is residential, and every one gets the same care: surfaces prepped properly, coats laid on evenly, rooms handed back tidy. The full scope sits on our interior painting page — what follows is how it plays out on Niagara streets.
Niagara's housing has a character of its own: streets of wartime and postwar homes in St. Catharines and Welland that remain some of Ontario's most affordable, Victorian stock in the old town cores, estates on the vineyard bench above Grimsby and Beamsville, and a steady round of B&B and guest-suite repaints near the Falls and Niagara-on-the-Lake between tourist seasons.
Much of Niagara's affordable older stock hides plaster, settlement cracks and trim carrying decades of paint — wartime houses in Welland and Victorian rooms in the Old Town want patient prep, while newer subdivisions in Niagara Falls or Grimsby are clean, quick drywall. The prep is matched to your house, never to a routine.
Whole-house repaints, single rooms and accent walls — including the stippled ceilings so common in Niagara's postwar housing.
Baseboards, casings, crown and panel doors brushed in by hand — even trim that has taken on decades of layered coats.
Railings, spindles and stringers, built-in shelving, and first coats over fresh drywall once a renovation wraps up.
Interior repaints for B&Bs and short-stay suites around the Falls and Niagara-on-the-Lake, timed to the shoulder season so bookings aren't lost.
Read these ranges as brackets, not a bill — a wartime two-bedroom in Welland and a bench estate above Beamsville price very differently once surface condition and colour changes are counted. The free visit pins down your real figure, and every paint we use appears on our main interior painting page.
From our Mississauga base the QEW curls around the west end of Lake Ontario and lands on the peninsula in one run — so crew and materials arrive together and the painting day starts when it should.
Grimsby at the region's edge, Wainfleet in the countryside or a Welland side street: the written quote already covers getting there, and nothing gets added after.
Households stay put and B&B owners keep hosting. We seal off one room or floor at a time, mask and cover everything, and hand each space back finished.
The room-by-room schedule is fixed before we start — handy when a guest suite has to be back in service by Friday. Cleanup happens every day, not just the last one.
A Niagara job moves through five stages. The visit comes first — we measure, talk colours and leave a written price. Prep follows: furniture shifted and draped, plaster patched, surfaces sanded, gaps caulked. Priming goes where it's needed (tinted on Premium so colours cover harder), then two finish coats, room by room, with crisp lines at trim and ceilings. A walkthrough with you and a final cleanup close it out — each stage is explained on our interior painting service page.
Tell us which rooms — in St. Catharines, Welland, Grimsby, the Falls or anywhere between the two lakes — and we'll visit, measure and send back a firm written price. No cost, no obligation.
Professional interior painting
that transforms your home.
We'll call you within 48 hours with a written estimate.
* Get in touch now for expert drywall services and bring your project to life!