Where Craftsmanship Meets Luxury
Expert construction, elegant gypsum décor, gold-leaf moldings, and pristine cleaning services across Oshawa & the GTA.
Book a Free QuoteOur Services
We blend expert craftsmanship with premium finishes to deliver refined, long-lasting spaces. From construction and décor to professional cleaning, every detail is handled with care.
🏗 Construction
Premium builds and renovations with meticulous attention to structure, finish, and longevity.
🎨 Gypsum Décor & Moldings
Elevated walls and ceilings with ornate gypsum work and optional gold-leaf accents.
🧼 Cleaning
Residential, commercial, and post-construction cleaning that leaves every space flawless.
Our Work
A glimpse of our recent projects—where precision, texture, and light meet luxury.
Why Choose Us
Expert Craftsmanship
Projects executed by specialists in fine finishes, moldings, and detail work.
Luxury Materials
From gypsum artistry to gold-leaf accents, we specify materials that last and impress.
Spotless Delivery
Our cleaning division ensures your space is pristine the moment we hand over the keys.
Trusted in the GTA
Proudly serving Oshawa and the Greater Toronto Area with integrity and care.
What Our Clients Say
“TMS Builders transformed our home with stunning gypsum décor. The detail and finish are incredible.”
— Sarah M.
“The cleaning service was professional and thorough. Everything looked brand new after construction.”
— John R.
“From design to finishing touches, their craftsmanship is unmatched. The gold-leaf details are stunning.”
— David L.
Our Service Area
About Us
At TMS Builders & Tonmar Cleaning, we believe every space should reflect elegance and quality. Our team pairs expert construction with gypsum décor, ornate moldings, and gold-leaf accents to create interiors that feel timeless and luxurious.
Beyond construction, our professional cleaning division delivers a spotless finish—so you can enjoy perfection from the moment you step inside. Trusted across Oshawa and the GTA, we’re committed to craftsmanship, precision, and excellence in every detail.
Get in Touch
Have a project in mind or need pristine cleaning? Tell us a bit about it and we’ll reach out shortly.
📍 Address: 2550 Simcoe St North, Oshawa, ON L1L 0R5
📞 Phone: 437-324-2741
✉ Email: [email protected]