1. The problem with managing it yourself

When property owners manage building contracts directly, they typically:

  • Accept contractor valuations at face value
  • Approve variations without proper assessment
  • Miss quality issues until after completion
  • Lack evidence when disputes arise
  • Overpay for incomplete or defective work

This isn’t because owners are negligent. It’s because construction contracts are complex, site visits are difficult to schedule, and most people don’t have the technical expertise to properly assess building work.

The contractor knows this. Even honest contractors benefit from the imbalance of information. Less scrupulous ones exploit it systematically.

2. What contract administration means

Contract administration is the independent, professional management of building contracts on your behalf. Under standard contract forms (like JCT), the Contract Administrator has specific duties:

Issuing instructions — Formal directions about the work, documented and authorised.

Valuing work — Independently assessing what’s actually been completed and is due for payment.

Certifying payments — Issuing certificates confirming what’s owed, based on assessed value rather than contractor claims.

Managing variations — Ensuring changes are authorised, priced, and agreed before they’re done.

Quality oversight — Inspecting work against specification and addressing defects while they can be corrected.

Completion procedures — Certifying practical completion, managing snagging, handling defects liability, agreeing final account.

Managing the relationship with the contractor - Being a buffer between client and contractor, and able to translate and relay technical information in easily digestible ways.

This isn’t optional bureaucracy. It’s the contractual machinery that makes building contracts work properly.

3. The payment problem

Consider how payment works without contract administration:

  1. Contractor submits an application for payment
  2. You receive an invoice for (say) £50,000
  3. You visit site — work is happening, looks busy
  4. You pay £50,000

Now consider what might be wrong:

  • Only £40,000 of work is actually complete
  • Materials claimed as “delivered” haven’t arrived
  • Work claimed as “complete” is actually defective
  • Variations have been included that weren’t authorised

Without independent assessment, you’re taking the contractor’s word for what’s due. Overpayment is common — and once you’ve paid, getting money back is difficult.

With contract administration:

  1. Contractor submits application
  2. Contract Administrator visits site, measures and assesses
  3. CA certifies £40,000 (the actual value of compliant work)
  4. You pay £40,000

The difference adds up. Over a project, overpayments of 10-20% are not unusual when there’s no independent oversight.

4. The variation problem

Changes happen on every project. The brief evolves, site conditions differ from expectations, problems emerge. Each change potentially affects cost and programme.

Without contract administration, variations typically get handled like this:

  1. Contractor identifies something that needs to change
  2. Contractor does the work
  3. Contractor submits invoice with variation costs added
  4. Owner discovers the cost has increased, but work is already done

This is backwards. Variations should be:

  1. Identified and documented
  2. Priced and agreed before work proceeds
  3. Formally instructed
  4. Included in valuations only when authorised

Contract administration enforces this discipline. No instruction, no variation. No agreement on price, no proceeding with the work. You stay in control of costs, rather than discovering them after the fact.

5. The quality problem

Quality problems are easier to fix during construction than after completion. A defective concrete pour can be broken out and redone. A misaligned partition can be repositioned. A wrong specification can be corrected before finishes go over it.

After completion, fixing quality problems is expensive and disruptive. Some defects become impossible to remedy without significant stripping out.

Contract administration includes regular site inspection against specification. Defects are identified early, while the contractor is still on site and correction is straightforward. The contractor knows their work is being checked, which itself improves quality.

Without this oversight, quality problems often aren’t discovered until the final walkthrough — or months later when things start failing.

6. The dispute problem

Building projects generate disputes. Even well-managed projects have disagreements about scope, quality, timing, and cost. The question isn’t whether disputes will arise, but whether there’s a mechanism to resolve them.

Without contract administration:

  • No formal record of what was agreed
  • No documented instructions
  • No independent assessment of what happened
  • Disputes become “he said, she said”
  • Resolution requires lawyers and potentially court

With contract administration:

  • Clear records of instructions, approvals, and assessments
  • Independent professional who observed the project
  • Evidence base for any claims or defences
  • Disputes can often be resolved through the contract machinery

The Contract Administrator isn’t an arbitrator, but their records and assessments provide the foundation for resolving disputes — or for defending your position if matters escalate.

7. The completion problem

Projects don’t end when the contractor says they’re finished. There’s a formal process:

Practical completion — The point at which the works are substantially complete and fit for occupation/use, even if minor defects remain.

Snagging — Identifying and documenting defects for the contractor to remedy.

Defects liability period — Typically 6-12 months during which the contractor must return to fix defects that emerge.

Making good — The contractor addresses defects at the end of the liability period.

Final account — The definitive statement of what’s owed, accounting for all variations and adjustments.

Release of retentions — Final payment once all obligations are satisfied.

Without proper administration, these steps get muddled or skipped. Practical completion gets declared prematurely. Snagging lists aren’t properly prepared. The defects period expires without issues being addressed. Final accounts remain unresolved. Retentions are released before defects are fixed.

Contract administration ensures each stage happens properly and protects your position throughout.

8. The independence factor

Why does it need to be independent? Why can’t your own team or the contractor’s team handle this?

Your team likely lacks the technical expertise and contractual knowledge. Construction contracts have specific procedures and timescales. Missing them has consequences.

The contractor has a commercial interest that differs from yours. They want to maximise their payment, finish quickly, and move on.

Independence matters. The Contract Administrator’s role is to administer the contract fairly, in accordance with its terms. They’re not on the contractor’s side, but they’re not simply “on your side” either — they’re professionals ensuring the contract works as intended.

That professional independence is what makes the system function.

Key Takeaways

  • Without oversight, you’re trusting the contractor — to value their own work and flag their own problems
  • Overpayment is common — independent valuation protects against paying more than is due
  • Variations need control — agree before proceeding, not after the cost is incurred
  • Quality needs inspection — catch defects early, while they’re cheap to fix
  • Disputes need evidence — proper records are essential
  • Completion needs management — snagging, defects, final account, retentions
  • Independence matters — the administrator serves the contract, not either party

Need Help?

If you’re commissioning building work and want proper protection, we can help. We provide contract administration under JCT and other formats, ensuring your project is managed professionally from start to finish.

Get in Touch

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Building Maintenance & Defects
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Independent oversight when works are commissioned.