Range from the cheapest building of under stairs storage £635 (PHM based in SS14) to the dearest building of under stairs storage £1075 (Top Marks based in SS7).
Comparing carpenter & joiners estimates for designing under stairs storage gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes to build under stairs storage in SS11 by posting a job with HaMuch and we will send it to carpenter & joiners in SS11.