How much does it cost to replace subfloor?
Cost of subfloor replacement 2026
The costs for replacing a subfloor average between €150 and €3,000, depending on the surface area and the chosen material such as plywood, OSB, or concrete. Replacing a subfloor means that the existing layer is removed and replaced by new material, which is essential for a stable and level base under your floor covering. In this price guide, you can read about the costs of this task and what to look out for when choosing the right material.
Table of Contents
- What does it cost to replace a subfloor?
- Subfloor replacement costs by material and location
- Price-determining factors for subfloor replacement
- Additional costs and surcharges for subfloor replacement
- How does the professional work when replacing a subfloor?
- How can you save on subfloor replacement?
- Common causes of subfloor damage
- Find the best professional for subfloor replacement
- Frequently asked questions about subfloor replacement
- Book a professional for subfloor replacement
- Useful links
What does it cost to replace a subfloor?
Replacing a subfloor costs an average of €1,500, with costs typically ranging between €500 and €2,500. This mainly depends on the area that needs to be replaced and the material you choose. Smaller tasks start from €150, while larger projects can go up to €3,000.
Price to replace subfloor
| Description | Price |
|---|---|
| Average costs | €1,500 |
| Average range | €500-€2,500 |
| Minimum costs | €150 |
| Maximum costs | €3,000 |
These prices provide a complete picture of what you can expect for standard living spaces. The minimum price applies to small repairs or partial replacements, while the maximum price applies to large areas or when additional work is required.
Subfloor costs per surface area
| Subfloor size | Costs (incl. labour) |
|---|---|
| 50 m² | €500-€2,000 |
| 100 m² | €900-€3,600 |
| 200 m² | €1,800-€7,200 |
| 500+ m² | €4,500-€20,000 |
Per square metre, the costs range between €7 and €33, including labour. The difference per square metre is mainly determined by the type of material and the condition of the existing floor. For larger surfaces, a more favourable rate per square metre often applies.
All stated prices include 21% VAT and labour.
Subfloor replacement costs by material and location
The costs for replacing a subfloor depend heavily on the chosen material and the location in the home. OSB (Oriented Strand Board) is the cheapest but sensitive to moisture, while concrete is the most durable option. Plywood is versatile and popular. Below you will find the price per material type and per room.
Costs per material
| Subfloor material | Costs per m² (incl. labour) |
|---|---|
| High-quality subfloor panels | €13-€39 |
| OSB | €15-€25 |
| Plywood | €15-€30 |
| Concrete | €18-€36 |
Costs per location
| Location | Costs (incl. labour) |
|---|---|
| Bedroom (25-50 m²) | €400-€900 |
| Bathroom (10-25 m²) | €400-€750 |
| Living room (50-100 m²) | €650-€1,550 |
| Kitchen (15-50 m²) | €700-€2,500 |
Price-determining factors for subfloor replacement
The costs for replacing a subfloor vary per situation. Below you can read which factors influence the total price.
- Surface area of the room: Larger areas mean higher total costs, but often lower costs per square metre. For a small repair of 10 square metres, you pay relatively more per square metre because the professional has the same preparation time as for a larger job. With larger areas, the professional works more efficiently, causing the price per square metre to drop.
- Chosen material type: The type of subfloor determines a significant part of the price. OSB and plywood are cheaper to purchase and easier to process, while high-quality subfloor panels and concrete cost more due to more expensive material and longer processing time. Concrete, for example, requires specialist knowledge and drying time, which increases labour costs.
- Location in the home: Bathrooms and kitchens are more expensive than bedrooms or living rooms. The risk of water damage is higher in wet rooms, meaning the existing subfloor is more often damaged. Sanity facilities and connections must also often be temporarily disconnected, which means extra time and work.
- Severity of water damage: In the event of water damage, the entire rotten area must be inspected. The professional checks whether joists and floor beams are affected. When damage goes deeper than just the subfloor, additional repairs are needed for the underlying structure, which significantly increases costs.
- Type of existing top floor: Removing laminate is faster than breaking up tiles or parquet. Tiles must be removed with a hammer and chisel, which requires more labour time. Glued floors such as PVC require extra work to remove adhesive residues.
- Accessibility of the workspace: Difficult-to-reach rooms or many present pieces of furniture increase labour costs. When the professional first has to move all furniture or work through a narrow staircase or hallway, this takes extra time. Better accessibility speeds up the work and lowers the total costs.
- Condition of the underlying structure: Repairs to joists or floor beams are labour-intensive and require extra material. When the construction has sagged or is damaged, it must first be restored before a new subfloor can be laid. This increases both the labour duration and material costs.
- Region and local price differences: In large cities like Amsterdam, Rotterdam, and Utrecht, prices are often higher than in rural areas. This is due to higher parking costs, longer travel time, and more expensive business operations. Local differences can be up to 15 percent.
- Urgency versus planned work: Urgent jobs are more expensive than planned work. Professionals must adjust their schedules and move other tasks, which justifies a surcharge. With planned work, you can often choose a quieter period, which lowers the costs.
- Work at the weekend: Work at the weekend costs more than during the week due to surcharges. Professionals charge a weekend rate because this falls outside regular working hours. Plan the job preferably during the week to avoid these extra costs.
Additional costs and surcharges for subfloor replacement
The costs for replacing a subfloor can be higher due to situation-dependent surcharges and additional work. At Zoofy, you do not pay call-out charges.
- Urgent tasks often carry a surcharge because the professional must adjust their schedule
- Work at the weekend is more expensive than during the week due to weekend surcharges
- With water damage, additional work may be needed for repair of joists, floor beams, mould remediation, or replacement of insulation
- A moisture barrier or vapour barrier for concrete floors or above crawl spaces involves extra costs
- Removing the existing top floor such as tiles, laminate, or parquet increases the price
- Disposal of old material can involve extra costs
- Adjustments to skirting boards, door frames, and transitions are sometimes necessary if the floor height changes
How does the professional work when replacing a subfloor?
Replacing a subfloor follows a set step-by-step plan to guarantee a stable and durable result.
- Inspection and damage assessment: The professional inspects the existing subfloor for moisture, mould, and structural damage to determine the scope of the work.
- Removal of top floor: The current floor covering such as laminate, tiles, or carpet is removed to gain access to the subfloor.
- Dismantling of damaged subfloor: The old or damaged subfloor is carefully removed, taking into account cables and pipes in the floor.
- Checking the underlying structure: The joists and floor beams are checked for rot or structural damage. If necessary, these are repaired or replaced before the new subfloor is placed.
- Installation of moisture barrier: In damp rooms or above crawl spaces, a vapour barrier or moisture barrier is applied to prevent future moisture damage.
- Installation of new subfloor: The new subfloor of plywood, OSB, concrete, or high-quality panels is installed. With plywood, tongue-and-groove is often used for extra stability.
- Reinstallation of top floor: The top floor is replaced or a new finish is applied.
The work takes an average of 1 to 2 days for a standard room, depending on the surface area and any repairs to the structure. Ensure the space is free of furniture and easily accessible for the professional beforehand.
How can you save on subfloor replacement?
There are several ways to lower the costs of replacing a subfloor without compromising on quality.
- Address moisture problems immediately: Dealing with small leaks early prevents large water damage to the subfloor, saving you expensive repairs to joists and floor beams later.
- Prepare the workspace: Move furniture yourself and ensure the space is clear and accessible so the professional can start immediately and save you labour hours.
- Plan during the week: Avoid weekend and urgency surcharges by planning the job during a weekday period.
- Choose the right material: OSB is cheaper than plywood but less suitable for damp rooms. For dry rooms, this reduces costs significantly.
- Combine tasks: Have insulation or underfloor heating installed at the same time to prevent double labour costs and reopening the floor.
- Book via Zoofy: You get a fixed rate in advance, without call-out charges and without surprises. You only pay after completion of the job.
Common causes of subfloor damage
Subfloor damage has various causes, from moisture problems to natural wear and tear.
Water damage due to leaks
Leaks from pipes, appliances, or flooding are the most common cause of subfloor damage. Water penetrates the subfloor and affects the material, leading to swelling, rot, and eventually instability of the floor.
Moisture problems and condensation
Condensation in crawl spaces, high groundwater, or poor ventilation leads to long-term humidity. This causes rot and mould in the subfloor, especially with wooden materials such as plywood or OSB.
Age and natural wear and tear
Over time, subfloors can weaken due to normal wear and tear. The material loses strength, resulting in creaking floors, sagging, or uneven surfaces that make replacement necessary.
Find the best professional for subfloor replacement
A reliable professional prevents structural problems, moisture damage, or creaking floors after replacing the subfloor.
- No call-out charges: you only pay for the work itself, never extra for the professional's arrival
- Fixed price in advance: you know exactly what the costs are, without surprises afterwards
- Quick booking without quote hassle: arrange a professional directly without comparing quotes first
- Payment via QR code after completion: you only pay once the job is fully finished
- Reliable, verified professionals: all affiliated professionals are checked for quality and reliability
- Experience and certification: when choosing, look for experience with subfloors, certifications, insurance, and references from previous customers
- Guarantees on material and labour: always ask about guarantees to be sure of the quality
Frequently asked questions about subfloor replacement
How expensive is it to replace a subfloor?
The costs for replacing a subfloor average between €500 and €2,500, with an average of €1,500 for standard living spaces. Smaller repairs start from €150, while larger projects go up to €3,000. The price depends on the surface area, the chosen material, and any additional work.
Is it worth replacing a subfloor?
Yes, in case of water damage, structural weakness, or extensive damage, replacement is essential for a stable floor. Delay leads to further damage to joists and floor beams, which means much more expensive repairs. Timely replacement prevents creaking floors, sagging, and further structural damage.
What does it cost to replace a wooden subfloor with concrete?
Concrete as a subfloor costs €18 to €36 per square metre including labour. For a standard room of 25 square metres, you pay between €450 and €900. Concrete is more durable and moisture-resistant than plywood or OSB, but requires longer drying time and specialist knowledge.
Is replacing a subfloor a task you can do yourself?
For small areas without structural problems, DIY is possible, but for water damage, large areas, or structural damage, a professional is needed. Affiliated professionals check joists, place moisture barriers correctly, and guarantee a flat and stable result. Mistakes when replacing a subfloor lead to permanent problems with your top floor.
Does the top floor always have to be replaced?
Not always. Click parquet and laminate can often be temporarily removed and reused. Tiles and glued floors usually have to be replaced because they are damaged during removal.
Which subfloor material is best for damp rooms?
High-quality subfloor panels or concrete are the most moisture-resistant for bathrooms and kitchens. OSB is not recommended because it swells with moisture. Always combine the chosen material with a vapour barrier or moisture barrier.
Is a moisture barrier always necessary?
For concrete floors, above crawl spaces, and in damp rooms, a moisture barrier or vapour barrier is strongly recommended. This prevents rising damp and condensation, which significantly extends the lifespan of the new subfloor.
How much nuisance does the work cause?
Count on 1 to 2 days per room. You can usually stay at home, but the room in question cannot be used during the work. Ensure furniture has been moved beforehand.
Can hidden problems be discovered during the work?
Yes, after removing the old subfloor, rotten beams, mould, pests, or subsidence can come to light. This requires extra repairs that increase the costs.
How do I prevent future subfloor damage?
Ensure good ventilation, treat small leaks immediately, and check regularly for moisture problems. Adequate ventilation between the subfloor and supporting structure prevents condensation and rot.
Book a professional for subfloor replacement
Ready to have your subfloor replaced? At Zoofy, you book a professional directly, without quotes and without call-out charges. You see exactly what it costs beforehand, and Zoofy pairs you with a reliable professional who has been verified. You only pay once the work is finished. Book a professional directly now.