Testing must be performed by a Plumbing or Mechanical Contractor who is certified by the State Plumbing Board and who has had their test gauge certified within the past year. Below is a list of companies which employ certified testers that have recently tested backflow prevention assemblies for Holland Charter Township. This is not a complete list. This list is provided as a courtesy, and is not intended as an endorsement or referral. The businesses listed below have no affiliation with HCT.

Bob Tolsma Plumbing - (616) 836-1197

Bredeweg Plumbing LLC - (616) 836-9285

CL Plumbing Inc. - (616) 355-9898

Countryside Plumbing - (616) 566-2878

DHE Plumbing & Mechanical - (616) 896-8414

Franklin Holwerda - (616) 538-3231

Gale Plumbing & Hydronics - (616) 281-6999

Genzink Plumbing Inc. - (616) 396-4962

Godwin Plumbing - (616) 243-3131

H2o Compliance Services Inc. - (989) 729-7527

J & V Plumbing - (616) 878-3975

K&S Plumbing - (616) 698-6790

Lameyer Plumbing - (616) 877-4665

Macatawa Plumbing - (616) 772-0388

McDonald Plumbing - (616) 698-6771

Ottagan Plumbing & Testing -(616) 392-6053

Pluene Service Company - (616) 717-5027

Port Sheldon Plumbing - (616) 738-9859

Rite-Way Plumbing & Heating - (616) 591-2461

Service Plumbing (616) 318-0175

ServicePRO Plumbing (616) 723-9488

Unema Plumbing & Heating - (616) 392-3664

Van Der Kolk Plumbing, LLC - (616) 218-2482

Van Rhee Plumbing - (616) 772-1963

Wassink Plumbing - (616) 298-0154