Mattamy Homes upgrades: what the Design Studio covers, and what to add after closing

Updated October 18, 2026

The short version: spend at the Design Studio on what goes into the walls and floors, because that’s what’s hard to change later. Leave what attaches to finished surfaces, window coverings included, until you have the keys. Shutter Boys has no connection with Mattamy Homes; what follows about Mattamy and Tarion comes from their own pages.

What the Mattamy Design Studio covers

On its GTA Design Studio page, Mattamy lists the finishes you choose there: cabinetry, solid surface, tile, flooring, doors, trim, paint and staircase, and fireplace. It lists optional extras separately: bathroom and kitchen plumbing, hood fans, kitchen and bathroom sinks, toilets and bathtubs^[1]. An appointment “usually takes 2 to 3 hours”, and Mattamy suggests making your selections beforehand^[1]. In Ottawa, Mattamy’s Home & Style team invites you to come “as many times as you need”^[2].

The price list

Mattamy publishes design pricing by community: the Hawthorne East Village studio page links a design pricing guide and says “Prices and availability are subject to change”^[1]. Because prices change by community and over time, the only list worth using is the current one from your own studio. We don’t reproduce Mattamy’s prices here.

What to choose before drywall, and what can wait

This is our own rule of thumb, not Mattamy’s advice:

• Choose now: anything built into the structure or behind finished surfaces. Cabinetry and its layout, flooring, tile, plumbing fixtures and anything that needs a rough-in are disruptive and expensive to change after you move in.
• Can wait: anything fixed to a finished surface. Window coverings, many light fixtures and hardware can be added or swapped later without opening walls, and you’ll choose them better once you’ve lived with the light in each room.

Window coverings in a new build

Window coverings aren’t among the Design Studio categories on the Mattamy pages we checked^[1], so most owners add their own. A few things make it easier:

• Look at the windows at your PDI. Tarion says builders must do “a thorough, floor-by-floor walk through with purchasers before they hand over the keys”^[3]. Note any damaged frames or sills then, before anything is fitted to them.
• Measure once the trim is done. Shutters are made to the finished opening, so measure after casing and sills are installed. Newer windows often sit close to the room side of the wall, so measure the depth to the glass and to any handle; it decides which louver size tilts freely. How to measure
• Keep records. Tarion’s warranty runs “for a total of seven years from the original date of possession” and is “divided into one-year, two-year, and seven-year coverages”^[4]. Photos of your windows before anything is fitted are useful if you ever need to make a claim.
• Do every room at once, or in stages. Shutters are priced per window, so you can start with bedrooms and add the rest later. A 36 × 48 in window in poplar with flat moulding and 3½ in louvers is $460 – $570 CAD in Canadian dollars, before tax and shipping. Every size

Mattamy communities near you

Mattamy builds across the GTA and Ottawa, among other places. Our city pages show each area’s housing and weather figures, and what they mean for shutters: Oakville, Milton, Ottawa and the rest of the GTA.