Family-owned since 1987
Dan and Dave started DDM in 1987. Same family, same shop, same phone number.
Why choose DDM
Six reasons homeowners keep calling us back.
Anyone can dig a trench. What matters after the trench closes is who picks up the phone next spring, whose parts are still in stock, and whose backflow filing actually made it to the utility.
Family-Owned
1-Year Warranty
Licensed & Insured
5.0 on Google
Six certified backflow technicians
Backflow is a public-health filing, not a checkbox. We keep six certified techs on staff so testing gets done right and gets filed on time.
1-Year Warranty
One year on every new installation, parts and workmanship. If something we installed fails inside twelve months, we come back and fix it.
Rain Bird & Hunter parts
Two brands, chosen because their parts are still stocked ten years after install. No off-brand heads that get discontinued the year after we leave.
Same-day repair on most calls
We repair systems we built and systems we didn't. Most repair calls in our service area get handled the same day you call.
Licensed & Insured
Licensed in Iowa and fully insured. Ask for our certificate anytime, it's ready before we start your job.
Ready to talk?
Get a quote from the crew that's been doing this since 1987.
More about the company: Our story · What we do · Where we work