Renovating interior stairs: Cost, materials and inspiring ideas

Why renovate interior stairs?

Renovating your interior stairs is about much more than aesthetics: It's also a way to improve safety, comfort and the long-term value of your home.

Here are three great reasons to invest in an interior stair renovation.

1. Give your home's look a fresh start

Outdated stairs can drag down your entire interior design, even if the rest of the house has been renovated. Current trends favour clean, streamlined styles, and modernizing your staircase is one of the most effective ways to get there.

Sometimes a few targeted changes make all the difference: A modern stair railing, repainted risers or hardwood treads, for example, can breathe new life into your entryway. The visual impact is immediate, and often far less expensive than you might expect.

2. Improve safety and code compliance

Worn or slippery treads, an unstable railing or overly spaced balusters are real safety hazards, especially for young children and elderly family members.

Quebec's Construction Code — enforced by the Régie du bâtiment du Québec (RBQ) — sets out several requirements for stairs, including minimum railing height, baluster spacing and structural resistance. If you're renovating your interior stairs, code compliance work may be required to meet current regulations.

3. Increase your property's value

A well-renovated staircase immediately catches buyers' attention, making it one of the highest-return visual investments you can make in a home.

On the flip side, a staircase in poor condition can turn potential buyers off and prompt them to negotiate a lower price. Investing in interior stair renovation means investing in the overall value of your property.

What does an interior stair renovation cost?

The price to renovate interior stairs depends on several factors, such as the scope of the work, your choice of materials, and the region where you live.

Here are the three main project levels to help you plan your stair renovation budget.

1. Cosmetic refresh (small budget)

This is the ideal option for stairs that are structurally sound but look tired. You can handle many of these tasks yourself, which significantly reduces the overall cost.

2. Partial renovation (mid-range budget)

This option is a good fit when your staircase structure is in good shape, but the treads, railing or guardrail need replacing.

A partial renovation delivers impressive results, without replacing the entire structure.

3. Full replacement (major project)

This is the right option for stairs that are severely damaged, unsafe or need a layout change.

Comparing several quotes and hiring a qualified professional is essential for this type of project.

Factors that affect interior stair renovation costs

Project type	Examples of work	Complexity
Cosmetic refresh	Paint, varnish, balusters	Low
Partial renovation	Tread overlays, new railing	Medium
Full replacement	New staircase, complete structure	High

What materials should you choose to renovate interior stairs?

Choosing the right materials is one of the most important decisions you'll make for your staircase renovation project. It affects the aesthetic appeal, durability, and budget all at once.

Here are the four main material options available to you.

1. Wood — Warm and timeless

Hardwood remains a classic choice for interior stairs. Whether you go with oak, maple, walnut or cherry, each species offers a distinct look, ease of maintenance and proven durability.

Advantages

• Rich and warm appearance

• Easy to stain or varnish to match current trends

• Long-lasting if well maintained

Things to watch for

• Sensitive to moisture and temperature fluctuations

• Cost varies depending on the wood species

• Requires periodic upkeep

2. Metal and steel — Modern and strong

Steel has become a go-to material for stair railings and balusters. Its industrial or contemporary look fits naturally into modern interiors.

Advantages

• Extremely durable and strong

• Requires very little maintenance

• Pairs beautifully with wood for an on-trend finish

3. Glass — Light and high-end

Glass panels are an excellent choice for adding visual lightness to your stair guardrail, especially in tight or low-light spaces.

Advantages

• Creates a clean, highly contemporary look

• Lets natural light flow through

• Makes the space feel genuinely larger

4. Vinyl — Durable and budget-friendly

Vinyl is increasingly popular for renovating interior stairs, and for good reason, as it is durable, non-slip, affordable, and easy to clean.

5 ideas to modernize interior stairs

You can renovate your interior stairs on a budget, and it's often simpler than you'd think! Here are five concrete ideas to modernize a staircase without breaking the bank.

1. Replace the railing for an instant impact

Swap out a worn wooden railing for a steel or black metal version to instantly modernize your interior: A major visual upgrade for a very reasonable investment.

2. Install solid wood tread overlays

Install stair tread covers directly on your staircase instead of replacing it entirely. It's an effective way to change the style without starting from scratch, and the results are often surprisingly impressive!

3. Install a glass guardrail or vertical slat panel

Choose between two options based on your needs:

• A glass guardrail for a contemporary, light-filled, high-end look

• A vertical wood slat wall, a budget-friendly, on-trend option that's easy to paint in any colour you want

Either way, the result is guaranteed to be transformative!

4. Paint the risers for a pop of colour

Paint your risers in a contrasting colour, like navy blue, forest green or matte black. It's the ultimate DIY idea for creating a graphic, personalized look in a simple and affordable way.

5. Add LED lights under the treads

Have LED lights recessed under each tread for a result that's both beautiful and practical: a polished ambiance by day and built-in safety at night. It's one of the strongest trends in contemporary renovation right now!

Renovate or replace your interior stairs: How to decide

To make the right call, there's really one key question to ask yourself: Is your current staircase structure still in good condition?

1. When a partial renovation is enough

If the stringers — the angled side pieces that support the treads on each side of the staircase — and the load-bearing structure of your interior stairs are in good shape, a partial renovation is often more than enough.

This is the right choice in the following cases:

• Your treads are damaged or outdated, but your staircase doesn't move

• Your interior stair guardrail is stable

• Your interior balusters are aging but still solid

• Your needs are primarily cosmetic

2. When a full replacement is necessary

Replacing the entire staircase is the most durable and safe solution in the following cases:

• Your stairs creak structurally, not just on a single isolated tread

• You notice visible sagging or instability in the staircase structure

• You want to bring your stairs up to Quebec Construction Code standards

• You're planning a major layout change, such as reconfiguring the staircase or opening up to an open-concept space

Why hire a contractor for your renovation work?

While many interior stair renovation tasks can be done DIY, some require a specialized contractor, for several important reasons:

• Ensuring the work complies with Quebec's Construction Code

• Guaranteeing precision cuts

• Achieving professional-quality finishes

• Getting a warranty on the completed work

How to choose the right contractor

• Verify that the contractor holds a valid RBQ licence

• Get at least three quotes to compare pricing and approaches

• Ask for references and review each contractor's past projects

• Give preference to members of the Association des professionnels de la construction et de l'habitation du Québec (APCHQ)

Find the right contractor for your project with RenoAssistance by Desjardins

Get your interior stair renovation done with confidence through RenoAssistance by Desjardins, a completely free support service that offers you:

• A network of verified contractors, selected based on rigorous criteria

• Simplified quote comparison for your renovation project

• Personalized advice tailored to your budget and your needs

• Peace of mind from start to finish

So, where do you start with your interior stair renovation project?

Renovating interior stairs can take many forms, which is exactly what makes this type of project accessible to any budget.

Here are the four key elements to consider before you get started.

1. The condition of the structure: Is a partial renovation enough, or is a full replacement necessary?

2. Your budget: Are you looking at a simple cosmetic refresh, a partial renovation or a major project?

3. The style you want: Are you going with wood, steel, glass, vinyl or a combination of materials?

4. The complexity level: Can you handle the work yourself, or is it better to bring in the pros?

Frequently asked questions about interior stair renovation