Waterproofing

What Affects the Cost of Waterproofing?

"How much does waterproofing cost?" is the first question we hear — and the honest answer is that it depends on your building, not on a fixed rate card. Two roofs of exactly the same size can legitimately cost different amounts. These are the six factors that decide your price, so you can judge any quotation you receive.

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Water tank on a rooftop

1. Area to Be Treated

The most obvious factor: the measured area of the roof, bathroom, basement or wall. This is why a proper quotation always starts with measurement, not estimation.

2. Condition of the Surface

A sound surface in good condition needs little preparation. A surface with failed old coatings, deep cracks, standing-water damage or broken screed needs repair work first — and that preparation is a real part of the cost.

3. The System Chosen

Polyurethane, Bituminous, Crystalline and Acrylic systems differ in material cost, number of coats and the surfaces they suit. The right system for a rooftop terrace is not the right one for a basement or a water tank, and choosing correctly matters more than choosing cheaply.

4. Coats and Coverage

A quotation should state how many coats will be applied and at what coverage. A suspiciously cheap quote often becomes clear at this line: fewer coats, thinner application, shorter life.

5. Access and Working Conditions

High roofs, tanks, confined basements and occupied commercial spaces all affect how a team can work, and therefore the labour involved.

6. Repairs Included — or Not

Some quotes cover only the coating; others include crack repair, joint sealing and slope correction. Comparing two quotations without checking what each includes is comparing different jobs.

How IBS quotes

Because these factors are specific to your building, IBS does not quote blind over the phone. The site survey is free: we measure, inspect the condition, recommend the right system, and give you an itemised written quotation — scope, materials and timeline — with no hidden charges and no obligation.

Want a Real Number for Your Property?

Book the free site survey and get an accurate, itemised quotation for your roof, bathroom, basement or tank.

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