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Claim This BusinessDonovan & Jorgenson has served the greater Milwaukee metro area since 1974, building a reputation across four decades as a full-service heating and cooling contractor. The company holds state licensing and maintains an A+ rating with the Better Business Bureau, supported by 355 client reviews that average 4.8 stars. Based in New Berlin, the team dispatches technicians to homeowners in Waukesha, Brookfield, Muskego, and surrounding southeastern Wisconsin communities. Their showroom at the New Berlin location displays current equipment and allows homeowners to discuss options with knowledgeable staff.
This contractor distinguishes itself through practical homeowner support programs. The business participates in Wisconsin's Focus on Energy program, helping qualified residents secure rebates when upgrading to high-efficiency furnaces and heat pump systems. Senior citizens receive discount pricing on repairs and maintenance visits. The company maintains in-house installation crews rather than subcontracting, and project managers walk each client through estimates with transparent pricing and multiple equipment options.
Customer stories fromverified reviews reveal technicians who solve problems other contractors could not. When Lynn Smith's furnace failed on a Sunday with temperatures plunging below zero, a technician arrived for an emergency temporary fix before follow-up with a full replacement. Scott Campbell's review describes Chad, who diagnosed and resolved chronic boiler issues that eight years of other company visits had failed to address, restoring heat to every room. The company also replaces air conditioning systems and installs heat pump configurations, with recent projects completing furnace, heat pump, and new ventilation installs within two days.
Every reviewer across 355 reviews awards 4 or 5 stars, with emergency Sunday service cited by at least two homeowners. Three reviews specifically name individual technicians: Mike Collier receives praise as a knowledgeable sales representative and Chad is credited with solving complex boiler problems that eluded competitors for years.
| Sunday | Closed |
| Monday | 7:30 AM–5 PM |
| Tuesday | 7:30 AM–5 PM |
| Wednesday | 7:30 AM–5 PM |
| ThursdayToday | 7:30 AM–5 PM |
| Friday | 7:30 AM–5 PM |
| Saturday | 7:30 AM–12 PM |
Emergency diagnostics, same-day temporary repairs, and full furnace installation with top-tier efficiency ratings.
Complete AC system replacement, including new ventilation and modern refrigerant configurations.
Variable-speed heat pump installation qualifying for Wisconsin energy rebates through the Focus on Energy program.
Specialized boiler diagnostics and part replacement for residential heating systems.
Annual tune-ups and system inspections extending equipment lifespan, with senior discount pricing available.