Most homeowners compare water treatment companies by what they sell and what it costs. A question that gets less attention is who will physically work in your home. The company you sign with may send its own technicians, or it may hire independent crews to do installs and service calls. Both models can produce good work. They differ in who answers for the job, how consistent the visits are, and who you talk to when something goes wrong a year after the install.
Why the Answer Matters
When the people doing the work are employees, the company usually controls their training, schedule, and conduct, and it can reassign or retrain them if a visit goes badly. When the people doing the work are subcontractors, the company may still be responsible for the result, but the day-to-day control sits with another business. Neither arrangement is automatically better. What you need is a clear answer to the question, and a company that gives you a straight one.
What to Ask Before You Agree to Anything
Ask directly whether the technicians who will visit your home are employees of the company or subcontractors. If the answer is mixed, ask which work goes to which group, such as installs versus routine service.
Ask for the name of the lead technician who will handle your install or your first service visit. A company that plans its staffing will usually know this before the appointment. If the name changes every visit, ask how the company keeps your system history in its records so the next person knows what was done before.
Ask who carries liability insurance that covers the people working in your home, and whether that coverage applies to subcontracted crews as well as staff. Ask for a copy of the certificate, not just a verbal yes, and check that the dates on it are still current when you receive it. If something is damaged during the work, you will want to know which policy responds.
Ask whether the company checks the work of subcontractors before it closes out a job. Some companies have a supervisor walk the install, sign the paperwork, and sit in on the first startup. Others leave the crew to finish and report back later. Ask which practice they follow and what you will receive at the end of the visit.
Ask what happens if the crew that installed your system stops working with the company. Find out who keeps the install records, the parts list, the wiring or plumbing notes, and the service history. Ask how you would reach the company, and whether a different technician would be assigned to your system without you having to explain everything again.
How to Compare Companies on This Point
Put the same three questions to each company you are considering: who does the work, who answers for it, and who you call later. Write down the answers in the same order so you can compare them side by side. Companies that answer quickly and in specific terms have usually thought about this. Companies that avoid the question, or answer only in general terms about their experience, leave you to find out the arrangement after you have already paid.
If you are unsure whether a particular kind of work needs a license or registration in your area, check with your local licensing authority or building department before you sign. Rules differ by location and by type of work, and the company's own statement is not a substitute for that check.
For more on how awards programs weigh these factors, see the award methodology page. For the current list of companies honored in the region, see the winners page.