Should i buy a house with sagging floors? 10 things to consider

No, You shouldn’t buy a house with sagging floors.

Sagging floors can be a sign of serious structural problems with a house, such as foundation damage or problems with the floor framing. These problems can be expensive to fix, and they can also make the house unsafe to live in.

10 points to consider when buying a house with sagging floors?

Professional Inspection

  • Hire an expert inspector to assess sagging floors and any underlying structural problems, and to look for any past repairs or renovations that may have addressed the issue.

Repair Costs

  • Factor in potential repair costs, which depend on issues like foundation problems, rotting joists, or inadequate support beams.

Overall Property Condition

  • Evaluate the property’s overall condition, considering red flags beyond sagging floors, such as the local climate’s impact and the age of the house.

Consult with a Local Real Estate Agent

  • Seek insights from a local agent for market knowledge and recommendations for contractors or engineers.

Long-Term Implications

  • Consider ongoing maintenance, repair requirements, and financial investment, as well as the potential for future renovations.

Impact on Resale Value

  • Understand the potential effect on resale value, as some buyers may be deterred by repair costs while others see it as a negotiation opportunity.

Climate Considerations

  • Assess the local climate and its potential impact on the house’s structural integrity, as some areas are more prone to foundation issues and settling.

Age of the House

  • Consider the age of the house when assessing the severity of the sagging floors, as older houses are more likely to experience natural settling over time.

Future Renovations

  • Explore the potential for future renovations, as sagging floors may be an opportunity to address other issues and improve the overall structural integrity.

Financing Options

  • Research financing options, as some lenders may be hesitant to provide a mortgage for a house with significant structural issues, potentially impacting your ability to purchase the house.

Sagging floor repair cost in 2023

Cost Breakdown:

  • The cost of sagging floor repair varies based on factors such as the severity of damage, flooring type, and repair area size.
  • Estimated costs:
  • Patching: $250 to $1,200 per patch
  • Joist repair: $500 to $2,000 per joist
  • Refinishing: $800 to $1,600 per room
  • Leveling: $1,200 to $20,000 per room

Companies Offering Sagging Floor Repair:

CompanyContact NumberEstimated Price
Foundation Repair Specialists(800) 427-8273$1,200 to $20,000
The Dwyer Group(800) 561-9931$1,000 to $10,000
American Foundation Repair(800) 582-3223$1,200 to $20,000
Perma-Pier(800) 277-7576$1,000 to $10,000
Helitech(800) 662-9535$1,200 to $20,000
  • These are estimated costs; actual expenses depend on factors like damage severity, flooring type, and repair area size.
  • Obtain multiple quotes to ensure competitive pricing and inquire about each company’s experience and warranty.

Additional Considerations:

  • Costs may increase if the sagging floor issue is due to serious underlying problems like foundation or water damage.
  • Address any underlying problems before repairing sagging floors for a lasting solution.
  • Obtain accurate estimates by consulting multiple companies and asking about their experience and warranties.

Understanding the cost of sagging floor repair is essential to plan and budget effectively for this type of home improvement project.

How long does it typically take to repair sagging floors?

Repair Timeframe Overview:

  • The time required for sagging floor repairs depends on damage severity and repair area size.
  • Generally, repairs can take anywhere from a few days to several weeks.

Estimated Repair Durations:

  • Patching: 1 to 2 days
  • Joist repair: 2 to 5 days
  • Refinishing: 3 to 7 days
  • Leveling: 5 to 10 days

Factors Affecting Repair Time:

  • Actual repair time may vary based on job-specific circumstances.
  • Serious underlying issues like foundation or water damage may extend the repair timeline.
  • Repair area size: Larger rooms may require more time than smaller ones.

Planning and Communication:

  • When considering sagging floor repairs, request an estimated completion timeframe from the contractor.
  • This information helps you plan and minimize disruptions to your daily life.

Understanding the expected repair timeframe is crucial for managing expectations and organizing your schedule during sagging floor repair projects.

How to prevent sagging floors from happening again after repair?

Address Underlying Issues:

  • Identify and resolve any underlying problems like water leaks, pest infestations, or structural design issues that may have contributed to sagging floors.

Regular Maintenance:

  • Perform routine maintenance tasks such as checking for and repairing water leaks, ensuring proper ventilation in crawl spaces, and addressing signs of pest activity to prevent potential floor damage.

Avoid Excessive Weight:

  • Be cautious about placing excessive weight on your floors, particularly in areas with weaker structural support like near beams or joists. Avoid overloading with heavy furniture or appliances.

Properly Support Load-Bearing Elements:

  • Ensure load-bearing beams, columns, and support posts are correctly installed and maintained. If you detect damage or shifting, consult a professional for inspection and necessary repairs.

Consult a Structural Engineer:

  • For concerns about your home’s structural integrity or major renovations, seek advice from a structural engineer. They can provide expert guidance on maintaining floor stability and overall home structure.

Monitor Floor Changes:

  • Regularly inspect floors for signs of sagging, unevenness, or other structural issues. Promptly address any changes to prevent further damage.

By following these proactive measures and taking steps to maintain your home’s structural integrity, you can reduce the risk of sagging floors and ensure the long-term stability of your property.

DIY methods to fix shagging floor

DIY Sagging Floor Repair Methods:

  • While DIY methods exist, they should only be attempted by experienced individuals comfortable with the associated risks.
  • Common DIY sagging floor repair methods include:
  1. Patching: Cut out damaged flooring and replace it with a piece of the same thickness.
  2. Joist Repair: Repair damaged joists by sistering them with new lumber.
  3. Refinishing: Sand down worn or damaged flooring and apply a new finish.
  4. Leveling: Shim uneven joists to achieve a level floor.

Safety Tips for DIY Sagging Floor Repair:

  • Prioritize safety by following these guidelines:
  • Protective Gear: Always wear safety glasses and gloves when working on sagging floors.
  • Joist Overload: Be cautious not to overload joists during repair.
  • Level Check: Use a level to ensure joists are level before shimming.
  • Proper Sanding: Avoid sanding flooring too deeply to prevent subfloor damage.
  • Ventilation: Apply new finish in a well-ventilated area.

Professional Help:

  • If uncomfortable with DIY sagging floor repair, it’s best to hire a qualified professional.
  • Professionals possess the expertise and experience to safely and effectively repair sagging floors.

Note: Detailed instructions for DIY sagging floor repair can be found in reputable DIY guides or websites.

What is the cost of professional sagging floor repair compared to DIY methods?

Cost Comparison – Estimated Range:

Repair TypeProfessionalDIY
Patching$250 to $1,200$50 to $200
Joist repair$500 to $2,000$100 to $400
Refinishing$800 to $1,600$200 to $400
Leveling$1,200 to $20,000$500 to $2,000

Important Considerations:

  1. Cost: DIY repair generally costs less upfront, but consider material and tool expenses, as well as the time required.
  2. Risk: Sagging floor repairs can be complex and hazardous, especially for severe damage. If unsure, hiring a professional is safer.
  3. Time: DIY repair may take longer. If timely repair is crucial, opt for a professional contractor.
  4. Expertise: Professionals possess the experience and knowledge to execute safe and effective repairs. If uncertain about DIY methods, hiring a professional is advisable.

Ultimately, the choice between professional and DIY sagging floor repair depends on your comfort level with the task, budget constraints, and the urgency of the repair. Carefully evaluate these factors before making a decision.

Floor feels uneven when walking

A floor that feels uneven when walking is often a sign of sagging floors.

Understanding Sagging Floors:

  • Sagging floors occur when floor joists, which support the flooring, become damaged or weakened, causing dips or sags in certain areas.

Other Causes of Uneven Floors:

  • Uneven floors may result from various factors, including:
  • Foundation damage
  • Moisture damage
  • Poor construction
  • Soil settlement

Identifying Uneven Floors:

  • Visual inspection: Look for any cracks, gaps, or unevenness in the flooring. If you see any of these signs, it could be a sign of an uneven floor.
  • Marble test: Place a marble on the floor in different areas. If the marble rolls away, it means that the floor is sloping in that direction.
  • Level test: Use a carpenter’s level to check the levelness of the floor in different areas. If the bubble in the level is not centered, it means that the floor is uneven.
  • Rulestrait test: Place a straightedge across the floor in different areas. If there is any space between the straightedge and the floor, it means that the floor is uneven.

Importance of Professional Inspection:

  • If you notice unevenness in your floors, it’s essential to have a qualified inspector assess the problem.
  • An inspection will help determine the cause and the cost of necessary repairs.

Promptly addressing uneven floors is crucial to maintain your home’s structural integrity and safety.

How to fix uneven floors in an old house

  • Inspect the subfloor, floor joists, and foundation to determine the root cause of unevenness. Common issues include settling, inadequate support, or structural problems.
  • If uneven floors result from foundation problems, consult a professional for foundation repair methods such as underpinning to lift, level, and stabilize the foundation.
  • If floor joists are the issue, consider sistering: adding extra joists alongside existing ones for added support and leveling.
  • For minor unevenness not requiring extensive repairs, place shims in joist areas with mild dips.
  • If the subfloor is damaged or uneven, repair or replace it to create a level surface for the flooring.
  • If the flooring material itself causes unevenness, repair or replace it to create a level walking surface.
  • If the problem is complex or requires extensive repairs, seek professional assessment and suitable solutions.


In conclusion, buying a house with sagging floors should not be taken lightly. It is a decision that demands careful consideration, professional inspection, and thorough evaluation of repair costs, long-term implications, and potential impacts on resale value. While repairs are possible, they can be costly and time-consuming. Moreover, the safety and structural integrity of the property must be a priority. If you decide to proceed, be prepared for the challenges and expenses, and always consult experts to ensure a sound investment in your future home.

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