What this calculator compares
One item is one complete sink fixture, not each bowl or drain outlet. Use per-item labour or provider supply only for identical assessed fixtures and fitting scopes; use whole-job totals for mixed models or mounting types. Identify customer versus provider supply and every included tap, waste and trap before adding charges. Enter all provider amounts on the same confirmed VAT basis. Customer purchases use the final whole-job receipt total including retail VAT, never a per-item amount. If you buy the main product, put separately billed provider components in the relevant extra, without duplicating them. Required unpriced costs stay unknown, not free. Enter full project costs, not a balance after a deposit; booking payments and refundable security deposits are recorded separately, not added as extras or deducted as visit credits.
This tool calculates from your entered quotations; it does not estimate a market tariff or verify a provider. Blank prices, unknown tax terms and unresolved extras keep the result incomplete. You must confirm the topic-specific scope checks before a cost difference appears.
How the arithmetic works
Labour is either the entered whole-job total or a per-item amount multiplied by the shared item quantity. Separate provider parts use the same unit choice. Each visit and extra charge is a whole-job amount added once. Use agreed whole-job totals for mixed models, repair units or prices.
Provider amount = labour/package + separately charged provider parts + visit + extras − eligible visit credit. A credit cannot exceed either the charged visit fee or the entered provider work excluding that visit. It cannot offset customer-bought parts. An included or no-charge visit is not deducted again. This model does not handle a separate cash refund arrangement.
The standard UAE VAT rate is 5%. VAT is added once to VAT-exclusive provider amounts, and not added to amounts already including VAT or confirmed not charged. Enter all of one provider’s amounts on the same VAT basis.
Project cost = provider total after its VAT treatment + your separately purchased parts at their final retail total, including any retail VAT and delivery. This keeps customer-supplied parts visible without taxing them twice. Already-owned parts count at the value you explicitly enter; entering zero deliberately excludes their historic purchase cost. No deposit or prior payment is deducted, so the result is not a remaining balance.
A worked example
Illustrative arithmetic only, not a market rate: two matching sinks at AED 100 fitting labour each plus AED 50 provider connection work give AED 250 before VAT, or AED 262.50 including 5%. Add AED 600 as the final total of customer-bought fixtures: AED 862.50 combined. Retail VAT is not added again. The visit and all other required lines are confirmed included or not needed.
Assumptions and limits
Money is entered in AED with up to two decimal places. Each monetary field is limited to AED 1,000,000; item counts to 100; handyman lists to 12 rows; hours to 100; and technicians to 20. These are input-error safeguards, not market, capacity or safety limits. Invalid values are not silently rounded into valid inputs. Calculated monetary lines, VAT and totals are rounded to two decimal places.
Unentered damage, scope changes and future work are excluded. The known-provider subtotal uses the amounts as entered, without adding unconfirmed VAT or customer purchases; it is not an all-in quote. Even a complete cost comparison does not certify suitability, workmanship, insurance or approval.
Do not lift an undermount or heavy sink, cut stone or force corroded shut-offs to collect quote information. Support, isolation and countertop suitability require professional assessment. This tool cannot approve a fixing system or diagnose a concealed leak.
Read the related Dubai cost and scope guide·Plumbing services