Before paying an Irish builder or home-improvement contractor, verify the legal trader, company or business-name record, current status, relevant trade registrations, insurance, references, written scope and payment account. Then structure the deposit and later payments around real milestones. A company number, polished website or low quote does not prove workmanship or protect the money.
Direct answer
Match the quote to a legal company, sole trader or partnership; check its public record and trading history; verify insurance and any required Safe Electric or Registered Gas Installer status; inspect recent references and completed jobs; agree a detailed written contract; and pay only a proportionate deposit through verified instructions. Large unexplained upfront payments are a risk signal.
Step 1: identify who is taking your money
The quote should state the trader’s legal identity, trading name, geographical address, contact details, VAT treatment and total price or calculation method. If a limited company is used, match the name and CRO number. If an individual trades under another name, check the relevant business-name registration.
Compare the bank-account name with the contracting party and resolve any mismatch before paying. Our guide to verifying an Irish company before payment explains the identity and bank-detail controls that reduce invoice fraud.
What to check—and what each check proves
| Check | Useful evidence | Limitation |
|---|---|---|
| CRO or business-name record | Legal identity, status, officers and filing history | Does not certify workmanship, insurance or current solvency |
| Accounts and charges | Historic financial and secured-funding indicators | May be abridged and many months old |
| Trade registration | Current registration for the regulated work checked | Does not cover unrelated building services |
| Insurance certificate | Claimed policy, insured name, cover and dates | Verify material cover with broker or insurer and check exclusions |
| References and past jobs | Recent customer experience and visible quality | Selected references may not reveal disputes |
| Written contract | Scope, price, timing, remedies and payment triggers | Only useful if precise, understood and enforceable |
Check the people doing regulated work
Safe Electric states that domestic electrical work should be carried out by a Registered Electrical Contractor and that a completion certificate should be provided after the work. Search the register or contact the scheme administrator if a contractor is not visible. For domestic gas work, verify the Registered Gas Installer through the current RGI source.
Do not assume the main builder’s company registration covers every subcontractor’s technical authorisation. Name the electrical, gas, engineering and other regulated roles in the contract, require evidence before work and specify the certificates needed for completion.
How much deposit is safe?
There is no universal safe percentage. The deposit should be justified by genuine early costs, proportionate to the project and documented. Ask what it buys, who owns ordered materials, whether it is refundable and what happens if the start date is missed. Avoid funding most of the job before meaningful work or materials exist.
The CCPC explains that paying a deposit creates a contract and recommends getting the product or service, amount, balance date and delivery date clear. It also notes that some card payments may offer a route to request chargeback if the trader fails to deliver. Ask your card provider about conditions and time limits; chargeback is not automatic protection.
Use milestone payments, not calendar promises
- Deposit: small and linked to mobilisation or specified materials.
- Milestone 1: paid only after defined work is inspected and accepted.
- Milestone 2: tied to another measurable stage, not merely a date.
- Practical completion: paid after agreed work operates and required documents arrive.
- Retention/final amount: released after snagging, certificates and defects are resolved as agreed.
Your architect, engineer, quantity surveyor or solicitor can help design payment certification for a large project. Do not approve an invoice only because cash is urgently requested.
What the written agreement should contain
- full legal parties, addresses and CRO or business details;
- detailed drawings, specification, materials and exclusions;
- price inclusive of VAT, allowances and how variations are priced;
- start, programme, access and completion arrangements;
- milestones, inspection and payment certification;
- who engages and remains responsible for subcontractors;
- insurance, safety, permits and required registrations;
- completion, test and compliance certificates;
- snagging, defects, warranties and retention;
- delay, suspension, termination and dispute procedures.
The CCPC explains that services must match what was agreed, be provided with reasonable care and skill and meet applicable legal and professional standards. Clear written information makes it easier to show what was promised.
References that are worth checking
Ask for recent projects of a similar type and value, preferably completed long enough ago for defects to appear. Speak to the client independently and, with permission, inspect the work. Ask about final cost, changes, attendance, communication, subcontractors, snagging and whether they would use the builder again.
Search the legal entity rather than only reviews under a brand. Company age can be useful context, but it does not prove how long the same people have worked in construction. Read how to check incorporation date and company age without confusing it with trading experience.
Warning signs before payment
- the legal name is missing or changes between quote and invoice;
- pressure to transfer immediately to secure a discount;
- a large deposit with no materials schedule or refund terms;
- payment requested to a personal or unrelated account;
- insurance or registration evidence cannot be independently verified;
- only cash is accepted or a receipt is refused;
- the builder resists a detailed scope, milestones or inspection;
- references are old, unrelated or cannot be contacted;
- recent filing, director, charge or insolvency concerns remain unexplained.
If problems appear after work starts
Document the issue with dated photographs, contract references and communications. Notify the builder in writing and allow the contractually and legally appropriate opportunity to put the service into conformity. Do not make arbitrary deductions; obtain professional advice and keep any withheld amount proportionate to the issue. For urgent safety problems, engage the relevant qualified professional or authority.
Sources and editorial review
This guide was reviewed on 24 August 2026 using CCPC guidance on paying deposits and consumer rights for services, its 2026 home-improvement guidance, and Safe Electric’s Registered Electrical Contractor search. It is general information, not building, engineering, payment or legal advice.