Bathroom Leak, Pipes, Valves and Waterproofing Guide: PPR and PVC Pipes, Fittings, Valves, Traps, Roof Coatings, Bitumen and Waterproof Cement
A bathroom leak is the most common and costly plumbing problem in Pakistani homes, and avoiding it comes down to good pipes, joints, valves and waterproofing laid in the right order. This guide covers how to find and fix a bathroom leak, which pipes and valves to use and how to waterproof roofs, floors and tanks, with indicative rates and links to detailed pages on each topic. For hot water see geysers, and for storage see water tanks and pumps.
Finding and fixing a bathroom leak
Check the meter with taps off, run the shower alone and do a ponding test on the floor. Read bathroom leakage treatment for methods and bathroom leakage repair for the homeowner's plan, and see floor traps for drain faults.
Pipes: supply and drainage
PPR suits hot and cold supply, PVC suits cold supply and drainage and CPVC and HDPE suit special uses. See PPRC pipes, PVC pipes, CPVC pipes, HDPE pipes, GI pipes, sewer pipes, conduit pipes, gas pipes and Master pipe notes.
Indicative pipe rates
These ranges show common retail figures per metre.
| Pipe | Indicative range |
|---|---|
| 20 mm PPR PN20 | PKR 120 - 280 |
| 25 mm PPR PN20 | PKR 190 - 420 |
| 20 mm PVC pressure | PKR 100 - 220 |
| 110 mm PVC drainage | PKR 600 - 1,200 |
| 1/2 inch GI pipe | PKR 350 - 700 |
Prices move with brand, model, size and stock. Use these ranges to judge a quote, then compare the exact model and what is included.
Fittings, valves and small parts
- Fittings: PPR pipe fittings, pipe clamps, rubber gaskets and flexible pipes.
- Valves: ball valves, NRV valves, foot valves, bib cocks, solenoid valves and gas valves.
- Bidet: muslim shower pipes.
Waterproofing roofs, floors and tanks
Good waterproofing depends on preparation and the right system. See roof sealants, waterproofing with bitumen, waterproof cement and Sika Pakistan notes.
Indicative waterproofing rates
These ranges show common figures including labour.
| Work | Indicative range |
|---|---|
| Cementitious coating, per sq ft | PKR 40 - 80 |
| Acrylic roof coating, per sq ft | PKR 60 - 130 |
| Bitumen membrane, per sq ft | PKR 70 - 160 |
| Polyurethane system, per sq ft | PKR 120 - 250 |
| Plumber, per bathroom | PKR 8,000 - 25,000 |
Prices move with brand, model, size and stock. Use these ranges to judge a quote, then compare the exact model and what is included.
Hiring and checking work
See plumbing services in Pakistan for rates, quotes and tests, and compare pipe makers using popular pipes and PVC pipe brands. Always pressure test before covering pipes. Plumbing, gas and electrical work should be done by licensed tradespeople and tested before it is covered.
Before you decide
Choose pipe and valve quality first, test before you close walls and waterproof with proper preparation. Good plumbing and waterproofing are hidden but decide how long the house stays dry. Keep photographs of pipe routes and the waterproofing stages for future repairs. Before work starts, write the scope, agree who buys which materials and decide the tests that will be done, such as a pressure test of supply pipes, a water test of drains and a ponding test of floors and roofs. Ask for itemised quotes, a written guarantee on waterproofing and a staged payment plan. The most costly mistakes are skipping tests, mixing pipe classes, choosing the cheapest unmarked pipe and applying coatings over damp or dusty surfaces, and each of these is easy to avoid. Use the pages above for the detail on each material.
Frequently Asked Questions
Check the meter with taps off, run the shower alone and do a ponding test on the floor. Ask for the specification in writing so you can compare quotes on the same basis. Check the warranty terms and who honours them before you pay.
PPR with PN20 rating, or CPVC. Check the warranty terms and who honours them before you pay. Measure carefully and confirm sizes with the seller before ordering. Rates and stock change, so confirm the current position before you commit. If you are unsure, send a photo and the measurements and we will advise.
As indicative ranges, about PKR 40 to 250 per square foot depending on the system. Measure carefully and confirm sizes with the seller before ordering. Rates and stock change, so confirm the current position before you commit. If you are unsure, send a photo and the measurements and we will advise.
Yes, before covering them. Rates and stock change, so confirm the current position before you commit. If you are unsure, send a photo and the measurements and we will advise. Ask for the specification in writing so you can compare quotes on the same basis.
No. These are neutral guides. If you are unsure, send a photo and the measurements and we will advise. Ask for the specification in writing so you can compare quotes on the same basis. Check the warranty terms and who honours them before you pay.
Use PPR PN20 for hot and cold supply, PVC drainage pipe for waste, matching fittings from one maker and a pressure test before closing walls, and keep photographs of the pipe routes. Ask for the specification in writing so you can compare quotes on the same basis.
Protected bitumen membranes last 15 to 25 years and good acrylic coatings about 5 to 10, depending on preparation, exposure and maintenance, so inspect after each monsoon. Check the warranty terms and who honours them before you pay. Measure carefully and confirm sizes with the seller before ordering.
Send the details and a photo on WhatsApp. We confirm what we can supply and reply with a written rate that lists the model, size, warranty and delivery, so you can compare it with other quotes on the same scope. Rates and stock change, so confirm the current position before you commit.
Planning plumbing or waterproofing?
Send the details and a photo. We reply with a written rate.