A bathroom renovation typically costs between £3,000 and £10,000, making it one of the most significant home improvements you'll undertake. The difference between a stress-free project and a nightmare often comes down to choosing the right bathroom fitter. Before you commit to anyone, these essential questions will help you separate the professionals from the cowboys.
What Qualifications and Certifications Do You Hold?
A competent bathroom fitter should hold relevant qualifications for the work they're undertaking. At minimum, ask about:
- NVQ Level 2 or 3 in Plumbing and Heating (or equivalent)
- Gas Safe registration if working on gas boilers or heating
- Part P electrical certification for bathroom electrical work
- Public liability insurance (at least £2 million cover)
Don't be shy about asking to see proof of these credentials. Any legitimate tradesperson will happily provide evidence. If someone seems evasive or claims they "don't need certificates" for certain work, walk away. In the UK, it's illegal to undertake gas work without Gas Safe registration, and electrical work must comply with Building Regulations.
Can You Provide References From Recent Bathroom Projects?
Previous customers are your best source of honest feedback. Ask for at least three references from jobs completed within the last year, ideally projects similar in scope to yours. When you contact these references, ask specific questions:
- Did the fitter stick to the quoted price and timescale?
- How did they handle unexpected problems?
- Did they leave the site clean and tidy each day?
- Would you hire them again?
Also request photographs of completed work or, better yet, ask if you can view a recently finished bathroom in person. A fitter who's proud of their work will readily share examples. Be cautious of anyone who only shows photos from years ago or can't provide contactable references.
What Does Your Quote Include and Exclude?
This is where many homeowners get caught out. A vague quote might seem competitive until you discover it doesn't include essential elements. Your quote should clearly itemise:
- Labour costs broken down by task
- Materials (tiles, fixtures, fittings)
- Removal and disposal of the old bathroom
- Plastering, tiling and decorating
- Building Regulations compliance and certification
- Any structural work required
Get at least three detailed quotes to compare prices effectively. If one quote seems significantly lower than others, it probably excludes work that competitors have included. Ask every fitter to clarify what happens if they discover hidden problems like rotten floorboards or faulty plumbing once work begins. A trustworthy professional will explain their process for handling variations.
How Long Will the Project Take and When Can You Start?
A typical bathroom refit takes between one and three weeks, depending on complexity. Be wary of anyone who promises to complete a full renovation in just a few days—quality work takes time. Equally, a fitter who can't start for several months might indicate high demand (a good sign) or poor organisation (a red flag).
Ask for a detailed schedule showing when different trades will be on site. This is particularly important if the fitter subcontracts work to electricians, plumbers or tilers. You need to know:
- Which days the property will be occupied
- When the bathroom will be completely unusable
- When you'll have working facilities again
- What happens if delays occur
Request this timeline in writing as part of your contract.
What Guarantees and Warranties Do You Offer?
Professional bathroom fitters should guarantee their workmanship for at least 12 months, with many offering two years or more. This guarantee should cover both labour and installation. Separately, the materials and fixtures you've purchased will have manufacturer warranties—typically one year for taps and showers, longer for baths and sanitaryware.
Clarify who handles warranty claims. If your new shower develops a fault in six months, will the fitter return to diagnose and fix it, or are you responsible for contacting the manufacturer? Understanding this upfront prevents frustration later.
Who Will Be Doing the Work on Site?
Some bathroom companies employ their own tradespeople, whilst others subcontract everything. Neither approach is inherently better, but you deserve to know who'll actually be in your home. If subcontractors are involved, check they're also properly qualified and insured.
Ask whether the same person or team will be there throughout, or if you'll see different faces each day. Continuity usually means better quality control and communication. Also establish who your main point of contact will be for questions or concerns during the project—chasing different tradespeople for answers becomes exhausting quickly.
Finally, discuss site management. Who's responsible for securing your property if they need to leave doors or windows accessible? How will they protect the rest of your home from dust and damage? These practical details matter enormously when you're living through a renovation.