Concrete rot repair costs
Concrete rot repair costs 2026
Repairing concrete rot costs on average between €250 for a small repair and €1,200 for larger jobs on floors, foundations, or balconies. Concrete rot occurs when the steel reinforcement in concrete begins to rust, causing the concrete to crumble and lose its strength. The costs for repairing concrete rot depend on the extent of the damage, the location, and the type of repair required. In this price guide, you can read about the costs of repairing concrete rot and what to look out for during this repair work.
Table of Contents
- What does repairing concrete rot cost?
- Concrete rot repair costs per type of repair
- Price-determining factors for concrete rot repair
- Additional costs and surcharges
- How does the professional proceed with repairing concrete rot?
- How can you save on repairing concrete rot?
- Common causes of concrete rot
- Find the best professional for repairing concrete rot
- Frequently asked questions about repairing concrete rot
- Book a professional for repairing concrete rot
- Useful links
What does repairing concrete rot cost?
Repairing concrete rot costs on average between €250 for a small repair to a concrete lintel and €500 to €1,200 for larger tasks on floors, foundations, or balconies. The hourly rate for this repair work starts from €69 per hour. The costs for repairing concrete rot mainly depend on the extent of the damage and the type of construction that needs to be repaired.
Overview of concrete rot repair costs
| Type of repair | Description | Average costs |
|---|---|---|
| Small repair | Concrete lintel | €250 |
| Large repair | Floor, foundation, or balcony | €500 - €1,200 |
The table shows the average costs for repairing concrete rot for different types of repairs. Small repairs to structures such as concrete lintels are relatively affordable, while larger tasks on load-bearing elements like floors or foundations require more time and materials.
The price for repairing concrete rot includes 21% VAT, labour, and materials. For more extensive work such as additional work, replacing reinforcement, or supporting concrete structures, costs will increase. These prices are indicative and based on previously completed jobs by affiliated professionals. The final costs may vary depending on the specific situation and location of the damage.
Concrete rot repair costs per type of repair
The costs for repairing concrete rot depend mainly on the extent and location of the damage. A small repair to a concrete lintel is the cheapest at €250, while larger work on load-bearing structures such as floors, foundations, or balconies costs between €500 and €1,200.
| Type of repair | Description | Costs |
|---|---|---|
| Small repair | Concrete lintel | €250 |
| Large repair | Floor, foundation, or balcony | €500 - €1,200 |
Price-determining factors for concrete rot repair
The costs for repairing concrete rot vary per situation. Where one job costs €250, another can go up to €1,200 or more. Below you can read which factors determine the price and what influences the total costs.
Complexity and depth of the damage
The deeper the concrete rot reaches, the more work is required. Superficial damage requires less repair work than rot that has penetrated to the core of the concrete. Deeper damage takes more time for removing affected material and applying repair mortars.
Extent of reinforcement damage
If the steel reinforcement is severely affected, it may sometimes need to be partially replaced. This requires craftsmanship, takes more time, and increases material costs. In the case of light rust formation, an anti-rust treatment is often sufficient.
Location of the damage
Concrete rot at a height, such as on balconies on upper floors, requires scaffolding or a cherry picker. These additional facilities make the job more expensive. Damage on the ground floor is easier and faster to reach.
Accessibility of the workspace
Difficult-to-reach places require more time and sometimes special equipment. Consider narrow passages, cellars, or locations where material cannot be brought directly to the damage. Good accessibility saves labour time.
Required materials
The choice of repair mortars, anti-rust agents, and potentially new reinforcement influences the costs. High-quality materials are more expensive but often provide a more durable result.
Temporary support
For load-bearing structures such as balconies or floors, it is sometimes necessary to place temporary support during the repair. This prevents sagging during the repair and entails extra costs.
Year of construction of the house
Homes built between 1950 and 1975 often have lower-quality concrete, sometimes containing calcium chloride. This material is more sensitive to concrete rot and may require more repair work than newer or older concrete.
Region
In large cities, the costs for repairing concrete rot are often higher than in rural areas. This is due to higher business costs and greater demand for professionals.
Urgency versus planned work
Urgent jobs are more expensive than planned work. The professional must adjust their schedule to be on-site quickly, resulting in higher costs.
Weekend or weekdays
Work during the weekend costs more than on weekdays due to higher hourly rates. Plan your job on a weekday to save costs.
Deferred maintenance
Addressing small problems early is more economical than repairing major damage. Preventive measures cost up to six times less than deferred repair, as concrete rot spreads at an accelerated rate.
Preparation and accessibility
Ensure the workspace is clear and accessible. This saves the professional time and prevents extra costs for clearing the space.
Transparent platform
At Zoofy, you know the costs for repairing concrete rot in advance with a fixed hourly rate from €69 per hour, without surprises afterwards. Choose a local professional to keep travel costs low.
Additional costs and surcharges
The costs for repairing concrete rot can increase due to extra work depending on the situation. At Zoofy, you do not pay call-out charges.
- Urgent jobs are more expensive because the professional must adjust their schedule
- Weekend work entails higher costs than on weekdays
- Drilling in and replacing reinforcement can lead to additional work
- Temporary support for balconies or other concrete structures during repair increases the price
- The use of cherry pickers or scaffolding for damage at heights entails extra costs
How does the professional proceed with repairing concrete rot?
The repair of concrete rot takes place in a fixed sequence of seven steps.
- Inspection and assessment: The professional inspects the damage and determines the extent of the concrete rot and the condition of the reinforcement.
- Removing affected concrete: The loose and affected concrete is chipped away until healthy concrete is visible. This prevents rotten material from remaining.
- Exposing reinforcement: The steel reinforcement is fully exposed so that all rust is accessible for cleaning.
- Cleaning and treatment: The reinforcement is thoroughly cleaned and treated with anti-rust agents to prevent further corrosion.
- Optional replacement of reinforcement: In the case of severely affected reinforcement, it is partially or fully replaced to make the construction safe again.
- Applying repair mortar: The holes are filled with special repair mortar or new concrete, which restores the construction's strength.
- Finishing the surface: The surface is finished smooth and can optionally be provided with a protective coating. The drying time is usually 24 to 48 hours before the surface can be lightly loaded. Full curing takes approximately 7 to 28 days, depending on the material and weather conditions. Concrete repair is preferably carried out at temperatures above 5 degrees Celsius.
How can you save on repairing concrete rot?
There are several ways to save on the costs of repairing concrete rot.
- Prevention: Check annually for cracks, hairline cracks, and brown spots in the concrete. Early detection prevents major repairs and keeps costs low.
- Protective measures: Consider applying a protective coating or water-repellent agents to prevent moisture penetration. This extends the life of the concrete.
- Good drainage: Ensure good drainage around concrete elements to prevent moisture accumulation. Moisture significantly accelerates concrete rot.
- Preparation: Ensure the workspace is clear and accessible so the professional can start immediately. This saves labour time and costs.
- Timing: Do not book on the weekend or as an urgent task, but plan the job on weekdays for lower rates.
- Book via Zoofy: You get a fixed rate from €69 per hour in advance, with no call-out charges and no surprises. You only pay after the job is completed.
Common causes of concrete rot
Concrete rot can have various causes, each of which influences the costs and urgency of the repair.
Moisture and rusting reinforcement
Concrete rot occurs when moisture reaches the steel reinforcement in the concrete. The reinforcement starts to rust and expands, causing the surrounding concrete to crumble and lose its strength. This process accelerates without intervention.
Construction period and calcium chloride
Homes built between 1950 and 1975 are at extra risk. At that time, calcium chloride was added to let concrete harden faster, but this makes the material porous over time and more sensitive to moisture penetration.
Sensitive locations
Balconies are extra vulnerable due to direct exposure to rain and frost. Cellars and crawl spaces are sensitive to rising damp. Concrete window frames and lintels often cause problems due to thermal expansion and weather influences.
Find the best professional for repairing concrete rot
Concrete rot repair is specialist work that requires craftsmanship to guarantee structural safety.
- No call-out charges: At Zoofy, you never pay call-out charges, keeping costs clear.
- Fixed price in advance: You know exactly what the hourly rate from €69 per hour will be, without surprises afterwards.
- Book quickly without quote hassle: Provide three moments and you will be called back quickly by a professional in your area.
- Payment via QR code after completion: You only pay when the work is finished, so you always have certainty about the quality.
- Reliable, vetted professionals: Zoofy only works with verified professionals who score an average of 9.2. More than 200,000 satisfied customers have gone before you, so you know the price for repairing concrete rot is fair and transparent.
Frequently asked questions about repairing concrete rot
What does a concrete rot repair cost?
A concrete rot repair costs on average between €250 for a small repair to a concrete lintel and €500 to €1,200 for larger work on floors, foundations, or balconies. The costs depend on the extent of the damage, the location, and the type of construction that needs to be repaired.
Is concrete rot insured?
No, concrete rot is usually not covered by your insurance. Insurers consider concrete rot as overdue maintenance, meaning it generally does not fall under building or damage insurance.
Can you repair concrete rot?
Yes, concrete rot can be repaired by removing the affected concrete, cleaning and treating the reinforcement, and filling the damage with repair mortar. If the repair is performed well, it will last at least 10 years.
What are the costs of concrete repair?
The costs for repairing concrete rot start from €250 for small repairs and can go up to €1,200 for extensive work. The hourly rate starts from €69 per hour at Zoofy, without call-out charges.
Is concrete rot preventable?
Yes, by regularly checking for cracks, applying protective coatings, and ensuring good drainage, you can prevent or delay concrete rot. Prevention is much more economical than repair.
How urgent is repair if I notice concrete rot?
Fairly urgent. Concrete rot is an ongoing process that only worsens. The longer you wait, the more expensive and invasive the price and the repair work will become.
Can I carry out small concrete rot repairs myself?
Very small superficial damage you might be able to repair yourself with special repair mortar, but in the case of visible reinforcement or structural elements, a professional is necessary for safe and sustainable repair.
How long does it take to repair concrete rot?
A small repair takes a few hours. Larger repairs can take one to several days, excluding drying time of 24 to 48 hours before the surface can be lightly loaded.
Why is concrete rot more common in older homes?
Homes built between 1950 and 1975 often used concrete with calcium chloride, which makes the concrete porous over time and more sensitive to moisture penetration and concrete rot.
Is repair also possible in the winter months?
Concrete repair is best at temperatures above 5 degrees Celsius. In the winter, repair may sometimes not be possible or the drying time takes longer, which influences the planning.
Book a professional for repairing concrete rot
Ready to have concrete rot repaired? At Zoofy, you can book a professional directly, without quotes and without call-out charges. You see exactly what it costs in advance, and Zoofy pairs you with a reliable professional who has been vetted. You only pay once the work is finished.