Plumbing quotation format

A plumbing quotation format is a header plus an itemised table: supply pipework by size in metres, drainage pipework in metres, traps, valves and connections in numbers, sanitaryware fixing in numbers, and a testing line, each with unit, quantity, rate and amount, then subtotal, tax, grand total, assumptions and exclusions. Below: the format, a ten-line PKR sample and the file.

What must a plumbing quotation contain?

A plumbing quotation must separate pipework from fixtures, state pipe material and size on every pipe line, and say for each fixture whether you are supplying it or only fixing it. Those three habits remove most of the arguments plumbing jobs are known for. The parts, in file order:

• Header: business name, address, phone, tax or registration number; client and site; quote number; date; valid until; payment terms.
• Supply pipework in metres by material and size: PPR 20 mm and 25 mm are typical for hot and cold in houses; state PN16 or PN20.
• Drainage pipework in metres by size: 110 mm soil, 50 mm waste, with bends and junctions included in the rate.
• Traps, valves and connections in numbers: floor traps, angle valves, flexible connections, isolating valves.
• Sanitaryware in numbers, each line marked "supply and fix" or "fixing only, client supplies".
• Water heater and appliance connections as separate lines.
• Testing and handover: pressure test at a stated pressure, leak check, making good of chases.
• Totals: subtotal, editable tax percentage (17% sales tax in Pakistan, 5% VAT in the UAE), grand total.
• Assumptions, exclusions and terms.

Fixing only: the rate covers installing, connecting and testing a fixture the client has bought. Supply and fix means you buy it too, and the line should name the model so the price can be checked.

What does a sample plumbing quotation look like?

The sample below is the supply and drainage work for two bathrooms and a kitchen in a house in Pakistan, priced in PKR, with the client supplying the sanitaryware. The rates are illustrative; your merchant and your labour set the real ones. The same ten lines priced in AED for a villa in Sharjah would add pipe insulation and a municipality inspection.

How do you fill in the template?

The file opens with the sample lines in place; overwrite them with your job and the Amount column and the totals block recalculate. Measure before you price, and decide the supply-or-fix question for every fixture before you type a rate. Five steps:

1. Replace the header placeholders. Business details, client and site, a fresh quote number, today's date and a validity date. Pipe and brass prices move, so 15 to 30 days is sensible.
2. Measure the supply runs by size. From the tank or the mains to each fixture group, hot and cold separately where both exist. Add 10 percent for offsets and waste. One line per pipe size and material.
3. Measure the drainage runs by size. Soil (110 mm) from WCs to the stack or chamber, waste (50 mm) from basins, showers and floor traps. Count traps and gullies in numbers.
4. List the fixtures and connections in numbers. Angle valves and flexibles per fixture point, then each sanitaryware item marked fixing only or supply and fix with the model.
5. Add testing, set the tax cell, and complete the assumptions sheet. State the test pressure. Type 17, 5 or 0 in the tax cell, fill in the assumptions and exclusions on the second sheet, and save under the quote number.

Which assumptions and exclusions should a plumbing quotation list?

Plumbing sits under tiles and inside walls, so the boundary with the civil and tiling trades is where money is lost. Write down who chases, who makes good, who waterproofs and who supplies the fixtures. The checklist below covers the lines that matter on nearly every bathroom and kitchen job.

• Chasing and making good: included in your pipe rates, or done by the civil contractor.
• Waterproofing of wet areas: by you, by the tiler, or excluded.
• Fixtures: supplied by the client, delivered to site before fixing starts; damage to client-supplied items in storage excluded.
• Existing pipework: condition unknown; replacement of hidden corroded pipe priced as a variation.
• Water and drainage connection points available within a stated distance of the work.
• Municipality, society or building management inspection fees excluded.
• Hot water pipe insulation included or excluded (standard in the UAE).
• Validity, payment terms and the warranty period on workmanship and joints.

What are the common errors in plumbing quotations?

Plumbing quotations go wrong at the description and the unit, not the arithmetic, and the same six mistakes appear job after job. Each produces a variation dispute or a free fixture installation, and each takes one extra phrase in the line to avoid.

• Pipe without a size or class. "PPR pipe" could be 20 mm PN16 or 32 mm PN20; the price doubles between them.
• Fixtures with no supply-or-fix statement. The client assumes the WC is included; you assumed they were buying it.
• Drainage bundled into "lot". Soil and waste runs are measurable. Price them in metres.
• Fittings forgotten. Elbows, tees, reducers and clamps are a real share of the material cost; the phrase "including fittings" in each pipe line covers them.
• No test pressure stated. "Tested" means nothing; "pressure tested at 10 bar for 30 minutes" is a deliverable.
• Making good unpriced. Someone has to close the chases. If it is you, it is a line.

How does a plumbing quotation relate to the estimating method?

A plumbing quotation in this format is unit-price estimating: measured quantities times rates, which is the method that protects your margin when the scope grows, because every extra metre of pipe has a rate the client already accepted. The alternative, a lump sum for "plumbing for two bathrooms", shifts all of that risk onto you. The guide to construction estimating methods explains when each is the right choice, and the BOQ format example shows the same six columns annotated.