Property Repair Cost Estimator
Select defects found during a viewing or flagged in a survey report to get a broad indicative cost range. Once a RICS surveyor has physically inspected the property, those ranges become significantly more accurate and far more useful in any negotiation.
Full Cost Breakdown
- These are broad indicative ranges only. Without a physical inspection, the true extent of any defect cannot be determined — costs could fall anywhere within or beyond the ranges shown.
- A RICS Building Survey produces cost ranges grounded in what was actually observed at the property. The surveyor can assess access, extent and specification directly, making the resulting ranges considerably more reliable for negotiation. We offer this as an optional Schedule of Estimated Repair Costs add-on.
- Costs are based on national average UK contractor rates (2025). London and the South East typically run 20–40% higher.
- VAT at 20% is not included. Most domestic repair and maintenance works are standard-rated.
- Opening up works frequently reveals secondary defects not visible at inspection — allow a 15–20% contingency on top of any estimate.
- Listed buildings, pre-1919 properties and non-standard construction almost always fall at or beyond the upper end of any range.
- Always obtain written contractor quotes before relying on any figures for offer negotiations or financial decisions.
Get Ranges You Can Actually Negotiate With
The figures in this tool are a starting point. Once a RICS surveyor has inspected the property and assessed the true extent of each defect, the cost ranges we provide become far more accurate — and far more credible as grounds for renegotiation. Ask us about our optional Schedule of Estimated Repair Costs, available as an add-on to any Level 2 or Level 3 survey.
Explore our other free tools: View all property tools →
CJ Bloor Property Consultants is regulated by RICS. Cost ranges are broad indicative estimates based on 2025 UK contractor rates. Without physical inspection of the property, these ranges cannot account for the actual extent, access or specification of any defect. They do not constitute professional cost advice.
Knowing roughly what repairs might cost before making an offer can be the difference between a well-priced deal and an expensive mistake. This tool gives you an initial broad range. A RICS survey gives you ranges grounded in the actual property — ranges you can actually rely on.
How to Use This Tool
- Search for any defect using plain language — "damp", "roof tiles", "rewire", "asbestos", "mould"
- Tick items to add them to your list — adjust quantities using the + and − buttons
- The tool shows a broad indicative cost range based on national average contractor rates
- Use the total as a rough guide when considering your offer — then get a survey for figures grounded in the actual property
If you’ve received a RICS survey report and want cost ranges specific to the defects identified, ask us about our optional Schedule of Estimated Repair Costs. Unlike this tool, that schedule is based on what your surveyor actually found at the property — making the ranges considerably tighter and more appropriate for price negotiation.
Why These Are Ranges — Not Figures
Any repair cost stated without physically inspecting a property is necessarily a broad range. Several factors make the difference between the low and high ends significant:
- Extent of the defect — a small patch of rising damp and widespread rising damp throughout a ground floor are categorically different jobs. Only a surveyor who has seen the property can judge which applies.
- Access conditions — scaffold requirements, restricted plots, party wall arrangements and neighbour access all vary property by property and affect cost materially.
- Specification required — a listed building repair must use like-for-like traditional materials. A modern new build can use standard components. Same defect, very different cost.
- Hidden extent — defects visible at the surface often indicate more significant underlying problems. Opening up works frequently reveals secondary issues not visible at inspection.
- Location — London and the South East typically run 20–40% above national average contractor rates.
A RICS surveyor inspecting the property in person can assess all of these factors directly. The resulting cost ranges will be tighter, better evidenced and far more useful in any renegotiation.
Using Repair Costs in Negotiations
- Get a RICS survey first — a surveyor’s professional assessment carries far more weight than an online estimate
- Use our optional Schedule of Estimated Repair Costs — ranges based on what was actually found, not generic national averages
- Be specific when presenting to the vendor — “the RICS survey identified Category 3 roof defects requiring works estimated at £12,000–£18,000” is far more compelling than a vague reference to condition
- Focus on structural and urgent items — vendors are more likely to negotiate on Category 3 defects than cosmetic or maintenance issues
- Obtain at least one contractor quote for any major item to support your position
Ready for Figures You Can Rely On?
A RICS Level 3 Building Survey identifies every significant defect with cause, urgency and condition rating. Add our Schedule of Estimated Repair Costs and you have professionally prepared cost ranges — grounded in the actual property — to take into any negotiation.
Explore our other free tools: View all property tools →
CJ Bloor Property Consultants is regulated by RICS. Cost ranges are broad indicative estimates based on 2025 UK contractor rates. Without physical inspection, these ranges cannot account for the actual extent, access or specification of any defect. They do not constitute professional cost advice.
