How to compare water-treatment quotes without guessing

Put both proposals on the same footing

Give each provider the same water report or laboratory results, photos of the installation area, household size and priorities. Tell them whether your home is occupied all year. A kitchen drinking-water system and a whole-house treatment package are different scopes; their total prices cannot tell you which is better for your needs.

Ask for the exact equipment

Request model numbers, flow specifications, intended reductions and the supporting product documentation. CDC advises matching a filter to the concern you need it to address. A more expensive package is not automatically a better match.

Reference: CDC filter selection

Separate installation from ownership

List equipment, plumbing changes, drain connection, any electrical work, permits if applicable, commissioning and removal of old equipment as separate questions. Then list replacement cartridges, media or membranes, salt if relevant, service visits and warranty exclusions. Confirm who supplies each item rather than assuming it is included.

Decide with a written scope

Use columns for included, excluded and needs confirmation. Ask who responds to leaks or a loss of pressure, what the labor warranty covers, and whether parts can be obtained without a service subscription. If financing is offered, compare the total payment as well as the cash price. A clear explanation is more useful than a same-day sales deadline.