| Business | Phone |
| Clarence Tamminga Heating 1607 Waukazoo Dr, Holland 49424 | (616) 399-9140 |
| Helder Plumbing 4177 Fillmore Rd, Holland 49423 | (269) 751-8117 |
| Meiste Heating & Cooling 466 Sleepy Hollow Ln, Holland 49423 | (616) 396-2828 |
| Sheet Metal Unlimited 4195 Blue Star Hwy A, Holland 49423 | (616) 392-1505 |
| Bel-Aire Heating & Air Cond Holland 49423 | (616) 393-6000 |
| South Shore Heating & Cooling 680 S 160th Ave, Holland 49423 | (616) 335-3901 |
| Adex Heating & Air Condition Holland 49424 | (616) 399-1100 |
| Don's Plumbing 3611 Butternut Dr 164, Holland 49424 | (616) 393-8962 |
| Service Plumbing & Mechanical 11699 Greenway Dr, Holland 49424 | (616) 395-9808 |
| T C One Controls & Svc 12764 Greenly St 15, Holland 49424 | (616) 786-3555 |