How to hire a contractor and pay without being burned

Choose the right type of contract, vet contractors properly, run a tender they all price the same way, write a contract that works, and pay by milestone so you always hold the leverage.

Reading time
15 min
Chapters
8
Checklists
4
Last checked
October 2026

Who this is for

  • Owners about to appoint a contractor for the first time
  • Owners who have been asked for a large advance
  • Owners whose builder wants money for work that is not finished

Have to hand

  • Approved drawings, a specification and ideally a BOQ
  • The names of three or more contractors to approach
  • A lawyer or an engineer to look at the contract before you sign

You will finish with

  • A contract type that matches your skills and risk
  • A tender package and a vetting checklist
  • A milestone payment schedule and a contract clause list
Chapter 1

Choose how you will contract

Pick the contract type that matches who you want to carry the risk of materials, price and supervision.

There is no best way to hire a builder. The choice is about who buys the materials, who carries the risk when prices move or materials go missing, and who supervises. Decide this before you approach anyone.

Common ways to contract a house build
TypeHow it worksYou carrySuits you if
Labour-only (mazdoori)The contractor supplies labour and supervision; you buy and supply every materialMaterial prices, quantities, waste, theft, delivery and quality of what you buyYou have time and experience to buy and manage on site, or an engineer who does
With-material (theka)The contractor supplies labour and materials for an agreed priceLess material risk, but the contractor may cut quality to protect marginYou want one price and one party, and have a way to check the quality
Item-rate (BOQ) contractThe contractor prices each item in a BOQ; you pay for measured quantitiesQuantity risk: the total changes if the quantities changeYou want transparency and changes handled item by item
Lump sumA fixed price for a defined scopeLittle price risk if the scope is well defined; disputes if it is notThe drawings and specification are complete
Design and buildOne company designs and buildsA single point of responsibility, less independent oversightYou are happy with a standard design and have separate inspection
Managed buildA manager appoints contractors, controls payments and inspectsYou pay the manager’s fee, and rely on their honestyYou cannot supervise, for example if you are abroad
Chapter 2

Find and vet contractors

Shortlist three to five contractors and check each one properly before inviting a price.

The lowest price is usually not the best choice. A builder who is cheap and unreliable costs more than one who is fair and competent, once delays and repairs are counted. Choose on capability first and price second.

  1. 1

    Find candidates from several sources

    Ask people who have built recently in your area, your architect or engineer, and suppliers who know who pays and who delivers. Avoid hiring a stranger who approaches you on site.

  2. 2

    See their work

    Visit at least two finished projects, and one under way. The finished houses show quality, the one under way shows how they run a site: neat or chaotic, with labour present and supervised or not.

  3. 3

    Speak to previous clients

    Call at least two. Ask what went wrong, how the contractor handled it, whether the final cost matched the quote, whether they finished on time and whether the owner would hire them again.

  4. 4

    Check how they are organised

    Ask who will actually run your site, how many people they have, how many jobs they have running at once and what they have on the books. A contractor with too many sites is a risk.

  5. 5

    Check registration and standing

    For larger or complex work, ask about registration with the Pakistan Engineering Council and tax registration, and ask for the details of any relevant licences. A registration does not make a contractor good, but not having one for large works is worth a question.

  6. 6

    Assess their finances

    A contractor who is short of cash will ask for advances and use your money on other jobs. Ask for the name of their material suppliers and check with them whether they are paid on time.

Contractor vetting

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Questions to ask at the interview, and what the answers tell you
QuestionWhat a good answer sounds likeWhat should worry you
Who will supervise my site?A named person, with experience, on site daily“I will come when needed”
How will you prove the steel and concrete are as specified?Mill certificates, cube tests, inspection before the pour“Do not worry, we have done this for years”
What do you need to start?Approved drawings, a signed contract, a small agreed mobilisationA large sum in cash
What is not in your price?A clear list of exclusionsHesitation, or “it is all included”
When would you stop work?A clear answer about non-payment, defects or unapproved changesNo answer
Can I talk to your last three clients?Yes, with numbersReluctance
Chapter 3

Run a tender that compares like with like

Give every contractor the same package, so the prices differ only in price.

  1. 1

    Prepare the tender package

    Approved drawings (architectural and structural), a specification of materials and workmanship, the BOQ, the draft contract terms and payment schedule, the programme you expect, and the date and format for the bid.

  2. 2

    Hold a site visit

    Take all bidders to the site together on the same day. Anything said to one should be said to all.

  3. 3

    Take questions in writing, and answer in writing to all

    Set a date for queries. Send questions and answers to every bidder, so none has an advantage.

  4. 4

    Receive the bids

    Ask for the BOQ priced, the programme, the key people, and the terms they propose. Set a deadline.

  5. 5

    Check the arithmetic and compare

    Re-multiply quantities by rates, add up, and compare using the table in the cost guide. Look at the big items, not only the total.

  6. 6

    Interview the shortlisted two or three

    Ask about outliers and exclusions. Ask them to confirm in writing what they will do about each point.

  7. 7

    Negotiate on terms, not by cutting scope

    It is fair to ask for a better price, but make sure it comes from a better rate, not from an item being dropped. Any change must be written into the BOQ.

  8. 8

    Award in writing

    Send an award letter naming the documents that make up the contract. Sign the contract before work starts.

Chapter 4

Write a contract that works

Put the points that cause disputes in writing, before work starts, in plain language.

A contract exists for the day something goes wrong. It should be written, signed by both parties and witnessed, and say who does what, for how much, by when and what happens if not. Ask your lawyer which stamp paper and formalities apply in your province. Banao also keeps contract templates you can read.

What the contract must contain

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Chapter 5

The payment schedule: pay for finished work, never for time

Design payments so you always hold more than the cost of finishing the job.

Money is the owner’s only real leverage. A contractor who has been paid ahead of the work has no reason to hurry, and an owner who has paid it all has no way to get defects fixed. A good schedule keeps the unpaid balance bigger than the cost of finishing the job and fixing the faults.

The principles

  • Tie each payment to a finished and inspected milestone, not to a date or a percentage the contractor says is done.
  • Keep the advance small, and pay it against something you can see, such as materials delivered to site.
  • Hold back retention, a small percentage of every payment, released after the defects period.
  • Pay by bank transfer to the contractor’s account in the contract, and take a receipt. Never pay cash without a signed receipt.
  • Let nothing be paid while a critical or major defect is open on that milestone.
An example schedule for a two-storey house (the shares are only an example; set yours by the value of the work in your BOQ)
MilestoneDone meansExample share of contract
Small advanceSigned contract, approved drawings, materials delivered to site against receipts5%
Foundation and plinthSteel and concrete inspected, DPC and anti-termite done, backfill compacted12%
Ground-floor slabColumns, beams, slab poured, cured, props removed with no defects12%
First-floor slabAs above12%
Roof slab and stair head (mumty)As above, with parapets12%
Masonry and rough servicesWalls complete; conduits and pipes in, pressure-tested and approved before plaster10%
Plaster and waterproofingPlaster cured; waterproofing tested by flooding10%
Floors, joinery and paintTiles, doors, windows, wood work and paint complete12%
Fixtures and final testsSanitary ware, electrical fittings, all tests passed10%
HandoverSnag list closed, documents handed over, site cleared5%
  1. 1

    The contractor tells you the milestone is complete

    In writing, with the date and the BOQ items it covers.

  2. 2

    It is inspected against the definition of done

    By you or, better, by an independent engineer. The inspection checks quality as well as quantity. See the inspection guide.

  3. 3

    Defects are listed and agreed

    Critical and major defects are fixed and re-inspected before the milestone is passed. Minor ones go on a list with a deadline.

  4. 4

    Payment is released

    By bank transfer for the agreed amount, less retention and any deductions, against the approved milestone certificate.

  5. 5

    Everything is recorded

    Keep the request, the inspection report, the approval and the receipt together.

What escrow adds

With escrow, the owner funds a milestone in advance and a third party holds the money until the work is approved. The contractor knows the money exists and will not be argued out of it, and the owner knows it cannot be spent on anything else. It addresses the two fears each side has: not being paid, and paying for work not done.

Chapter 6

Changes, extra work and delays

Handle changes in writing before they are built, and know what to do when the programme slips.

Almost every build changes: you move a wall, add a point, choose a different tile. Changes are fine. Unpriced changes are not, because they turn into arguments about what was agreed, usually at the end when you have least leverage.

  1. 1

    Describe the change in writing

    A short instruction with a sketch: what is to change and where.

  2. 2

    Get a priced quote before work starts

    The contractor prices it using the BOQ rates where an item exists, and a fair rate for new items. Note the effect on the programme.

  3. 3

    Approve it in writing

    Sign a variation order with the price, the time effect and the date. Add it to the BOQ.

  4. 4

    Reject verbal changes

    Tell everyone on site that nothing is done on a spoken instruction. This includes you.

When the work is late

  • Find out the reason in writing: weather, labour, materials, your own late decisions or the contractor’s management.
  • Agree a recovery plan with dates. Compare progress with the programme every week.
  • Apply the delay clause only where the delay is the contractor’s. Rain and the owner’s late decisions justify more time.
  • Plan around the monsoon, extreme heat, Ramadan and the Eid holidays, when labour availability and working hours change, and agree in advance how they affect the programme.

Early signs a contractor is in trouble

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Chapter 7

Run the site week to week

Use a simple weekly routine to keep the project on time, on quality and on record.

  1. 1

    Hold a short weekly meeting

    Owner or representative, contractor, and engineer if there is one. Cover progress against the programme, what is next, decisions needed from the owner, defects open, payment status and problems.

  2. 2

    Keep a site diary

    Daily entries by the contractor’s supervisor: weather, labour numbers, materials delivered, work done, visitors and instructions. Sign it weekly.

  3. 3

    Use a three-week look-ahead

    Each week, list what is planned for the next three weeks, what must be decided, and what must be ordered. Most delays are decisions or materials that were not ready.

  4. 4

    Approve materials and samples before they are used

    Approve tiles, paint, sanitary ware, hardware and fixtures from samples, in writing, before ordering. Keep the approved samples on site.

  5. 5

    Keep every record

    Drawings and their revisions, instructions, variation orders, delivery slips, inspection reports, photographs, payment requests and receipts, in one place that you can reach from anywhere.

Chapter 8

Disputes, termination and handover

Know what to do if the relationship fails, and how to finish properly if it does not.

If the relationship breaks down

  1. 1

    Put your complaint in writing

    State what is wrong, which clause or specification it breaches, what you want done and by when. Keep proof it was received.

  2. 2

    Give the contractor time to fix it

    The contract should provide a notice period. This is also what protects you if the dispute reaches a lawyer.

  3. 3

    Have the work measured independently

    If you must part, an independent engineer measures what has been done, checks its quality and values it, so that the final account is based on facts.

  4. 4

    Secure the site and the materials

    Make an inventory of materials and equipment and protect the work from weather and theft.

  5. 5

    Take legal advice before terminating

    Terminating wrongly can cost you. Follow the contract’s procedure.

Handover

Handover

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Questions people ask

How much advance should I pay a contractor?

As little as will allow them to start, and pay it against something you can see, such as materials delivered to site against receipts. A large advance removes your leverage before any work is done.

What is retention, and is it fair?

Retention is a small percentage held from each payment until the end of the defects period. It is normal and fair to both sides: it gives the contractor a reason to return and fix faults, and the owner a way to get them fixed.

Do I need a written contract for a small job?

Yes. A short contract that states the scope, price, schedule, payments and the defects period takes an hour to write and saves months of argument.

Can I change the design during construction?

You can, but get the change priced and approved in writing before it is built, and check whether it needs a revised approval from the authority.

What if the contractor wants to use cheaper materials?

They may only do so with your written approval, and the price should fall accordingly. The specification and BOQ name the materials; a substitution without approval is a breach.

Who should inspect before I pay?

You or, better, an engineer who is independent of the contractor. A payment that depends on the contractor’s own report of completion is not tied to anything.

This guide is general guidance for building in Pakistan, last checked October 2026. Your approved drawings, your engineer's specification, the building regulations of your development authority and the law in force today take priority over anything written here. Fees, taxes and bylaws change: confirm current figures with the body that sets them.

Have verified contractors bid on one BOQ, with payments held in escrow until you approve each milestone.

See how escrow works

Keep going

Shorter reads on parts of this: paying contractors safely with milestones and escrow, how to read a construction BOQ.

Banao.com.pk