Bathroom renovations are one of the most common and most complex jobs a UK plumber quotes for. Get it right and it's a week's solid work at a good margin. Miss a line item and you're absorbing the cost. Here's a complete guide to quoting bathroom renovations accurately — every task, every variable, and how to send a professional quote before you leave the property.
A thorough bathroom renovation quote covers far more than just the suite installation. Here's the full checklist of tasks to consider on every bathroom survey:
These are indicative figures for a standard bathroom in average UK conditions. Actual prices will vary based on your rates, location, suite specification and job complexity.
Remember: These are labour and materials combined. Always get your own material costs from your supplier before committing to a price — tile costs in particular vary enormously by specification.
No two bathroom renovations are the same. The following variables have the biggest impact on your quote and are the most commonly missed:
A ground-floor bathroom with easy van access is straightforward. A third-floor flat with no lift and a narrow staircase is a different job entirely. Always factor in access time, material carrying distance, and any working restrictions (noise, hours, shared access).
Old lead or iron pipework, pipes running in awkward locations, or services that need significant rerouting can add two to four hours to a bathroom job. Check pipe material and routing during the survey and quote for any alterations explicitly.
If the new suite's waste points are in different positions to the old ones, the waste pipe will need extending or rerouting. This is easy to miss during a quick survey and expensive to absorb if not quoted.
Tile directly over a concrete floor? Fine. Old vinyl over a chipboard subfloor with movement? You may need levelling compound or subfloor repair before tiling. Check the floor condition on every survey.
If the customer is supplying the suite and tiles, your quote is labour-only. Make this explicit and note that your quote assumes customer-supplied materials are correct, complete and undamaged on arrival. Always add a line for any additional materials needed.
The traditional approach — surveying the bathroom, driving home, sitting at a laptop, calculating tasks and materials for 45 minutes — is completely avoidable. With Zipflow, you describe the job as you walk the survey and have a professional quote ready to send before you leave.
A bathroom survey voice description takes about 60 seconds. Something like: "Full bathroom refit — remove old avocado suite, new white standard suite, extend waste 300mm, retile floor in standard ceramic, keep existing wall tiles, shower over bath with thermostatic mixer, dispose of old suite." Zipflow identifies every task, asks about floor area and suite spec, applies your rates, and generates the itemised quote.
The customer receives a professional, detailed quote on their phone before you've started the engine. That's almost always the first quote they receive — which means you've already won the race.
Try Zipflow free for 30 days — no credit card. Your first bathroom quote in under 60 seconds.