What Is Included in Interior Finishing a New Home? Ontario Checklist

Builder Upgrades in Ontario: What to Pay For Now, What to Do Later, and What Is a Waste of Money
The decor-centre appointment is where a new house that fit the budget suddenly becomes $30,000, $60,000 or $100,000 more expensive. Hardwood. Oak stairs. Quartz. Taller cabinets. Pot lights. Better tile. Every upgrade sounds reasonable by itself. The trick is knowing which ones are expensive to add later and which ones you should leave on the showroom wall.
The rule I use: how much of the new house do you have to tear apart later?
There are hundreds of possible builder upgrades, but you do not need hundreds of rules.
Ask one question:
If I skip this now and want it three years from now, what has to come apart?
If the answer is nothing more than a couple of screws, it can probably wait. If the answer is drywall, tile, cabinets, wiring, flooring, plumbing and paint, take the upgrade seriously now.
This is why a $180 extra electrical receptacle may be better value than a $700 decorative faucet.
The receptacle may require cutting drywall, fishing cable and repainting if you add it later. The faucet can normally be changed with a wrench.
Online new-home discussions repeatedly reach the same conclusion: owners most often regret missing structural choices, electrical capacity, extra outlets, conduit, plumbing provisions and other things hidden once the house is closed up.
That does not mean every builder price is fair. It means the timing has value.
The three buckets: do now, compare carefully, or do later
| Usually do during construction | Compare builder vs. after closing | Usually easy to do later |
|---|---|---|
| Structural changes | Kitchen cabinets | Decorative light fixtures |
| Higher ceilings | Quartz or stone countertops | Cabinet handles |
| Extra windows and doors | Hardwood / engineered flooring | Mirrors |
| Electrical service capacity | Hardwood stairs | Closet organizers |
| Extra circuits and outlets | Tile upgrades | Window coverings |
| EV charger rough-in | Interior doors and trim | Many faucets |
| Conduit and data wiring | Finished basement | Paint colours |
| Plumbing rough-ins | Bathroom vanities | Plug-in smart devices |
| Sound insulation | Built-ins / millwork | Decorative shelving |
| Blocking inside walls | Shower glass | Some appliances |
This is a decision framework, not a rule written in stone. A terrible builder price can turn a “do now” item into a different decision. The point is to compare the full future cost, not just today’s upgrade charge.
Electrical: buy the wire now; buy the fancy fixture later
Electrical is probably the easiest place to make a smart upgrade decision.
An outlet costs almost nothing to install when the walls are open compared with adding one after drywall, paint, cabinets or tile are finished.
Think about:
- Outlets on both sides of beds
- Extra kitchen and pantry receptacles
- Outlets inside closets for charging
- Bidet-seat receptacles near toilets
- Exterior receptacles
- Garage workbench circuits
- EV charger rough-in
- Under-cabinet lighting wiring
- TV power and conduit
- Ethernet or data cable
- Power for motorized blinds
- Empty conduit to the attic for future solar or wiring
Your house can meet the electrical code perfectly and still be irritating to live in.
The code establishes minimum requirements. It does not know where your bed, desk, television, Christmas tree, coffee machine or workshop bench will sit.
Our detailed lighting and outlet planning before drywall guide goes through the house room by room.
My priority
Pay for the circuit, outlet, box, conduit and wire while the framing is open. Be much less eager to pay the builder’s markup for a chandelier you can replace yourself after closing.
Kitchen cabinets: upgrade function before fashion
Kitchen upgrades become dangerous because one change affects five others.
A larger island can affect electrical, plumbing, lighting, countertop area and circulation.
Taller upper cabinets can affect bulkheads, crown moulding and appliance clearances.
Changing from a range to a cooktop and wall ovens affects cabinetry and electrical.
A prep sink means another drain, water supplies and cabinet space.
Those are expensive things to rethink after possession.
If the budget is limited, I would put kitchen money into:
- A good layout
- Enough drawers rather than only doors
- Useful pantry storage
- Proper island clearances
- Good drawer runners
- Good hinges
- A durable cabinet box
- Correct appliance openings
- Plumbing and electrical infrastructure
I would worry less about expensive handles, trendy door colours and accessories that can be added later.
Most importantly, do not assume “Level 4 cabinets” means better cabinets.
Open the box. Pull out the drawer. Look at the back. Look at the runner brand. Look at the hinge.
Use the 14-point kitchen cabinet quality checklist before paying thousands for an “upgrade.”
If you have actual cabinet quotes, the Kitchen Quote Review compares up to three of them on the same scope and tells you what each one leaves out.
Countertops: easy to change, but expensive to throw away
Technically, countertops can be changed later.
Financially, replacing a brand-new countertop six months after closing can make very little sense.
The current BuildersOntario Ontario pricing guide puts a typical mid-tier quartz installation at about $105 per square foot installed, with a normal kitchen commonly falling around 50 to 65 square feet before the extras.
That puts an ordinary quartz kitchen in roughly the $5,500 to $7,500 range before HST, depending on material and details.
So if the builder wants a reasonable upgrade charge from laminate to a quartz you genuinely want, the builder option may make sense.
If the upgrade premium is enormous, compare the complete independent replacement cost.
Do not compare:
builder upgrade price vs. slab price.
Compare:
builder upgrade price vs. new countertop + removal + disposal + sink work + plumbing + backsplash repair + HST.
The Ontario countertop cost guide breaks down quartz, granite, quartzite, porcelain, fabrication and the extras the square-foot advertisement leaves out.
Flooring: the “I will do it later” calculation is often wrong
Flooring is one of the most common design-centre arguments.
Homeowner sees:
$12,000 builder hardwood upgrade.
Homeowner finds flooring online for $7,000 and assumes the builder is ripping them off.
Maybe.
But the proper comparison has to include what happens after possession.
- You already paid for the standard floor.
- Someone removes it.
- Someone disposes of it.
- The subfloor may need preparation.
- The new material has to be delivered and installed.
- Transitions may change.
- Baseboard may need work.
- Doors may need trimming.
- You may have furniture in the house by then.
The current BuildersOntario flooring allowance research shows how little many standard allowances really buy. A roughly $4 to $6 per-square-foot builder allowance generally lives in builder carpet, laminate, basic LVP or very low-end engineered territory.
Read what a new-home flooring allowance actually buys before the decor appointment.
If you have competing quotes, the Flooring and Tile Quote Review checks product, square footage, waste, subfloor preparation, transitions, stairs and missing scope.
Hardwood stairs: one upgrade I would take very seriously
A staircase looks like a small area on the floor plan.
It is not priced like flooring.
Our current Ontario stair research puts a straightforward boxed oak tread and riser at roughly $150 per tread on an existing suitable stringer, with open ends or wide treads closer to $200 before railings.
For a 14-tread flight, that is about $2,100 for boxed oak treads and risers before the railing, versus only a few hundred dollars for carpet.
That difference explains why production builders love carpeted stairs.
It also explains why converting later is not simply “remove carpet and add hardwood.”
The stair may need:
- New fitted treads
- Risers
- Nosing work
- Skirt work
- Landing transitions
- Staining
- Railing modifications
- Newels and balusters
See the complete Ontario hardwood stairs cost guide before deciding the builder’s stair upgrade is too expensive.
My view
If you know you want hardwood stairs, this is one of the finish upgrades I would be reluctant to redo on a brand-new house just because I tried to save money at the design centre.
Bathrooms: spend money behind the tile first
Bathrooms are another place where the visible sample can distract from the expensive part.
The colour of the tile is not usually what makes a shower difficult to change.
The things behind it do:
- Shower size
- Drain position
- Waterproofing
- Shower valve location
- Handheld rough-in
- Bench framing
- Niche framing
- Curbless detail
- Blocking for glass
- Floor heating
A nicer faucet can be changed later.
A second shower valve hidden behind finished porcelain cannot.
The same thinking applies to a floating vanity. The vanity itself is visible, but the blocking, drain location and supply arrangement happen inside the wall.
Our bathroom vanity cost guide separates cabinet, top, sinks, faucets, installation and plumbing so you can see what the whole upgrade really contains.
Paint: one of the easiest places to say “later”
Homeowners can spend thousands at a decor centre because they hate the standard paint colours.
Paint is important, but it is also one of the easiest things in the house to change.
I care much more about:
- Good drywall installation
- Good taping
- The correct finish level
- Proper new-drywall primer
- Good preparation
A $90 can of paint does not fix poor taping.
If your builder charges a reasonable amount to move from cheap flat builder paint to a good washable product, compare it.
If the upgrade is mainly a huge charge for choosing another shade of beige, remember that repainting does not require opening the wall.
Use the Interior Finishing Calculator to see what drywall, taping, primer, paint, trim and doors should cost together.
If you have quotes, the Drywall and Painting Quote Review puts them on the same scope before you sign.
What should absolutely be decided before drywall?
This is probably the most useful checklist in the article.
Walk the framed house with this list before insulation and drywall. Ten minutes with a carpenter or electrician now can avoid opening a finished wall later.
Five questions to ask before accepting any builder upgrade
- What exactly is changing? Brand, model, material, thickness, hardware, labour or only colour?
- What credit do I get for the standard item I am not taking?
- What would the complete job cost after closing? Include removal and repairs.
- What other trades does this change affect? Electrical, plumbing, drywall, cabinets, flooring?
- Can this be changed later without damaging something else?
Do not accept words like “premium,” “Level 3,” “designer series” or “executive package” as specifications.
Those are sales descriptions.
You want the manufacturer, product, dimensions, material, thickness, finish, hardware and installation scope.
One example: a $12,000 flooring upgrade may be cheaper than a $9,000 floor later
This is why upgrade decisions need arithmetic.
| Do it through builder | Do it after closing |
|---|---|
| Builder upgrade: $12,000 | New flooring: $9,000 |
| No demolition | Remove builder floor: $1,500 |
| No disposal | Disposal: $500 |
| Baseboard coordinated once | Trim repair/reinstall: $750 |
| House empty | Furniture / disruption: real cost |
| Total: $12,000 | Total: $11,750+ before inconvenience |
Now change the example to a chandelier.
Builder wants $1,800.
Fixture store wants $700.
The electrical box and switch are already installed.
That is an entirely different decision.
The point is not “builders are expensive” or “do everything later.”
The point is to compare the finished consequence.
If I had only $10,000 left for upgrades
If it were my own house, I would walk the framed building before spending one dollar on decorative finishes.
I would first look for the things I will curse myself for not doing later:
- Outlets where furniture actually goes
- Garage electrical capacity
- EV rough-in
- Exterior power
- Conduit
- Under-cabinet wiring
- Future basement plumbing
- Soundproofing around bedrooms and bathrooms
- Blocking
- Better kitchen functionality
- Proper stair construction
Only after those are covered would I start spending what remains on fashionable fixtures.
The fancy faucet is nice.
The missing electrical conduit will annoy you for the next twenty years.
Related guides on this site
Questions people ask
Which builder upgrades are most worth paying for?
Usually the upgrades that are structural, hidden or disruptive to retrofit: structural changes, higher ceilings, electrical capacity, additional circuits and receptacles, plumbing rough-ins, conduit, sound insulation, blocking, additional windows and major kitchen-layout changes.
Which new-home upgrades should I do after closing?
Decorative light fixtures, cabinet handles, mirrors, closet organizers, window coverings, many faucets, paint colours and plug-in smart-home products are generally much easier to replace later because they do not require opening finished walls or floors.
Should I upgrade flooring through the builder?
Compare the builder’s net upgrade price against the complete post-closing replacement cost. Include removal of the standard floor, disposal, subfloor preparation, new material, installation, transitions and trim repair. Large hardwood or engineered-flooring areas can make more sense during construction than the material price alone suggests.
Are hardwood stairs worth the builder upgrade?
Often, yes. Converting a carpeted builder stair to hardwood later involves fitted treads, risers, nosings, finishing and often railing work. It is much more involved than replacing bedroom carpet.
Should I upgrade kitchen cabinets through the builder?
Spend first on layout, drawers, pantry storage, cabinet construction, hardware quality and correct appliance openings. Do not assume a higher design-centre level means a better cabinet. Compare the actual box, drawer, hinge and runner specification.
Are builder countertops overpriced?
Sometimes, but compare the complete job. Replacing a countertop later can require removal, disposal, sink and faucet reconnection and backsplash repairs. Compare the builder’s upgrade difference with the full installed replacement cost rather than the stone price alone.
What electrical upgrades should I add to a new house?
Extra receptacles where furniture and equipment will actually sit, under-cabinet wiring, exterior outlets, garage workbench circuits, EV charger rough-in, data wiring, TV conduit and empty conduit for future systems are all worth considering before drywall.
Should I upgrade pot lights through the builder?
The important part is having the wiring, switching and locations planned before drywall. Decorative trims and fixtures are much easier to change later. Separate the cost of the electrical infrastructure from the cost of the visible light.
Should I pay for upgraded paint in a new home?
Paint is comparatively easy to change. Good drywall finishing, proper primer and preparation matter more. A reasonable upgrade to a washable quality paint can make sense, but a large premium purely for custom colours is easier to postpone than most structural upgrades.
How much should I budget for builder upgrades?
There is no reliable percentage that fits every home. Build the budget category by category: structural and hidden work first, then kitchen, flooring, stairs, bathrooms and finally decorative items. The biggest problem is usually not one expensive upgrade but dozens of small upgrades that were never totalled together.
Already have the builder’s upgrade sheet?
Before signing it, use the BuildersOntario guides and calculators to price the expensive categories separately. A kitchen, flooring or finishing allowance that looks reasonable as one number can be thousands of dollars off once the actual scope is compared.
Reviewed and updated November 2026. Ontario costs shown are planning ranges and examples, not contractor quotations. Builder upgrade pricing and included specifications vary by contract, builder and project.
BuildersOntario.com is run by ICFHome.ca — ICF custom-home specialists since 1995. Straight answers on budget, permits, and ICF. No pressure.
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