South East regional pricing

How Much Does a Damp Proofer Cost in Portsmouth?

Updated prices for . Portsmouth prices are typically 6% below the national average.

12 services priced
South East region
Updated

Price summary

Portsmouth Price Summary

Service Low Average High
Rising Damp Treatment (Per Wall) £235 £470 £935
Damp Proof Course Injection £470 £1,120 £2,340
Condensation Treatment £140 £375 £750

Prices include labour and materials. VAT may apply. Based on South East regional pricing.

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Full pricing

All Damp Proofer Prices in Portsmouth

Every price adjusted for Portsmouth using a 0.935x cost multiplier, rounded to the nearest £5.

Rising Damp Treatment (Per Wall)

Low

£235

Average

£470

High

£935

Half day to 1 day

Damp Proof Course Injection

Low

£470

Average

£1,120

High

£2,340

1-2 days

Condensation Treatment

Low

£140

Average

£375

High

£750

Half day

Penetrating Damp Repair

Low

£185

Average

£470

High

£1,120

Half day to 1 day

Basement Waterproofing and Tanking

Low

£1,870

Average

£4,675

High

£9,350

1-2 weeks

Mould Removal and Treatment

Low

£185

Average

£420

High

£750

Half day to 1 day

Damp Survey and Report

Low

£140

Average

£235

High

£375

1-2 hours

Cavity Wall Tie Replacement

Low

£470

Average

£1,405

High

£2,805

1-3 days

Timber Treatment (Dry Rot)

Low

£470

Average

£1,405

High

£3,740

2-5 days

Timber Treatment (Wet Rot)

Low

£185

Average

£560

High

£1,405

1-2 days

Salt Damage Replastering

Low

£375

Average

£750

High

£1,405

1-2 days

Ventilation System Installation

Low

£375

Average

£750

High

£1,405

Half day to 1 day

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Regional comparison

How Portsmouth Compares

Average cost of rising damp treatment (per wall) across regions.

Portsmouth
-6% £470
National Average
baseline £500
London
+24% £620

Local insights

What Affects Damp Proofer Costs in Portsmouth?

The South East has a mix of housing styles, from Victorian and Edwardian semis to 1930s suburban developments and modern estates. In and around Portsmouth, many properties in areas near Surrey and Kent vary in age and condition. Older properties with original features typically cost more for damp proofer work due to additional preparation and access challenges.

The South East sits above the national average for trade costs, influenced by proximity to London and the generally higher cost of living. Labour rates in Portsmouth are typically 6% below the UK average. Despite this, there's a strong supply of qualified damp proofer professionals across the region. Prices can vary 30-50% between different tradespeople for the same job, so getting multiple quotes is essential.

What you pay for damp proofer work in Portsmouth depends on the complexity of the job, the materials used, and the condition of your property. Older detached and semi-detached homes often present more challenges that add to the cost. For larger jobs, expect to pay £1,870 to £9,350 for basement waterproofing and tanking in Portsmouth. Coastal properties in the South East may face additional considerations that affect pricing.

When getting quotes in Portsmouth, aim for at least three from different qualified professionals. Ask each one to visit and assess the work rather than quoting over the phone. A good damp proofer will check the existing setup, identify complications, and provide a detailed cost breakdown. Be wary of quotes that seem significantly cheaper — they may be cutting corners on materials or quality. Always check qualifications, insurance and recent reviews.

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More services

Other Services in Portsmouth

Explore costs for other services in the Portsmouth area.

40 services — scroll to explore

Common questions

Frequently Asked Questions

Common questions about damp proofer costs in Portsmouth.

How much does a damp proofer cost in Portsmouth in 2026?
Rising Damp Treatment (Per Wall) in Portsmouth typically costs between £235 and £935, with the average being around £470. Prices vary depending on the scope of work, materials used, and the specific requirements of your property.
Are damp proofer prices cheaper in Portsmouth than London?
Yes. Portsmouth damp proofer costs are typically 6% below the national average, while London prices run around 24% above it. For rising damp treatment (per wall), you could save over £150 compared to the same job in London.
How do I find a good damp proofer in Portsmouth?
Get at least three quotes from different tradespeople, check recent reviews, and ask whether the quote includes VAT and everything you need. A detailed written quote that breaks down all costs is a good sign. Always check qualifications, insurance and recent reviews before hiring.
What affects damp proofer prices in Portsmouth?
The main factors are the scope and complexity of what you need, the options and products chosen, and local market rates. Portsmouth rates are 6% below the national average. Getting multiple quotes is the best way to ensure a fair price.
Do damp proofer prices include materials in Portsmouth?
The prices shown on this page include all typical costs. However, when getting real quotes, always confirm what is and isn't included. Some tradespeople break out costs separately, while others give an all-in price. Ask for a detailed breakdown before agreeing to any work.