Compare Local Pros
3rdGen Heating & Cooling vs Monarch Plumbing And Rooter
Alameda Plumbing Contractors Comparison · Updated March 2026
You're comparing an HVAC specialist to a plumbing contractor, so your decision depends entirely on whether you need heating and cooling work or plumbing services.
| 3rdGen Heating & Cooling | Monarch Plumbing And Rooter | |
|---|---|---|
| Rating | ★ 5.0 | ★ 4.9 |
| Years Licensed | 4 years | 10 years |
| License # | 1086898 | 1014475 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Berkeley, CA | Hayward, CA |
| Website | 3rdgen.io | www.monarchplumbinginc.com |
Key Differences
What Customers Say
3rdGen Heating & Cooling
Customers consistently highlight the owner's direct involvement and educational approach, with particular appreciation for clean installations and personalized service from a smaller team.
Monarch Plumbing And Rooter
Customers emphasize rapid emergency response and transparent diagnostics using camera technology, with property managers noting reliable service across multiple locations over time.
Key Takeaway: 3rdGen's feedback centers on personalized owner communication and worksite care during installations, while Monarch's reviews focus on speed of emergency response and visual demonstration of problems through inspection technology.
Customer Reviews
3rdGen Heating & Cooling
Love 3rd Gen, Devin and the team! They are knowledgeable, professional, kind, and generous. Highly recommend working with them!
I am so glad that I found 3rd Gen Heating & Cooling. The team is smaller so it felt so much more intentional and trustworthy. They pay such great attention to detail, in which they were able to meet m...
I got my HVAC system installed by 3rd gen in 2022, this week the heater stopped working . I gave them a call and Devin and Ceaser visited today to fix the issue. They were at the house right at the ap...
Monarch Plumbing And Rooter
Honest and Professional. Eli showed up in an urgent situation and made sure that everything is taken care of by the time he left. Highly recommend him.
Very professional service. Jack went above and beyond. One of the best plumbers I have worked with.
Jack came on time to investigate the issue with our garbage disposal (leaks). Apparently it was just loose to cause leaks and no other significant issues. He helped tighten it. Since there is no other...
Consider 3rdGen Heating & Cooling if...
- ✓ You need HVAC work including furnace repair, air conditioning service, heat pump installation, or mini-split systems rather than plumbing services
- ✓ You're planning a significant system installation where direct owner involvement and educational communication throughout the project matters to you
- ✓ Your project involves newer HVAC technology like Mitsubishi mini-splits or heat pump conversions where specialized expertise is valuable
- ✓ You prefer working with a smaller team where the same person you initially speak with stays involved through project completion
Consider Monarch Plumbing And Rooter if...
- ✓ You need plumbing services including drain clearing, fixture repairs, water heater installation, sewer work, or repiping rather than HVAC work
- ✓ You have an emergency plumbing situation requiring immediate response, including potential holiday or overnight availability
- ✓ Your project is complex plumbing work like whole-house repiping or sewer lateral replacement where 10 years of troubleshooting experience provides added confidence
- ✓ You manage multiple properties and need a reliable plumbing contractor with documented experience serving property management clients over extended periods
Questions to Ask Before Hiring
- → If choosing 3rdGen for a major system installation: Ask for references from projects involving similar equipment and scope to understand how they handle installations at your project's complexity level
- → If choosing Monarch for major plumbing work: Ask which plumber will be assigned to your project and how long they've been with the company to understand crew stability
- → For either company: Confirm current availability and realistic project timelines, as both advertise same-day service but complex projects will require scheduled installation dates
The Bottom Line
Your decision is determined by the type of work you need, not by comparing contractor quality across trades. If you need heating or cooling work, contact 3rdGen. If you need plumbing services, contact Monarch. Both companies maintain proper licensing and insurance, receive positive customer feedback in their specialties, and offer responsive service. The only scenario requiring actual deliberation is if you mistakenly thought one handled both trades. For homeowners needing both HVAC and plumbing work, you'll be hiring both contractors for separate scopes of work.
Get Up to 3 Free Quotes
Compare prices from licensed, verified contractors
Frequently Asked Questions
No, these contractors serve different trades. 3rdGen only handles HVAC systems like furnaces, air conditioners, and heat pumps. Monarch only handles plumbing work like drains, water heaters, and pipe repairs. You'll need to contact the company that matches your specific problem.
For routine service calls within each company's specialty, both demonstrate competence based on customer feedback. The experience gap becomes more relevant for complex diagnostic situations or major installations where having seen more edge cases helps with problem-solving. For a basic furnace repair or drain clearing, both show solid capabilities in their respective trades.
Both receive consistent feedback about same-day availability and quick response times. Monarch has documented responses during holidays and overnight hours, suggesting more established emergency infrastructure. 3rdGen's smaller size may provide flexibility but their after-hours emergency capabilities aren't as clearly documented in customer feedback.
These are separate projects requiring different licensed trades, so you'll contract with each independently. If your heating installation involves relocating gas lines or adding condensate drains, ask 3rdGen what plumbing work they handle versus what requires a separate plumber. Schedule the plumbing work first if it affects where HVAC equipment can be positioned.
Looking for the Best?
See our ranked list of top plumbing contractors in Alameda.
Other Alameda Plumbing Contractors Comparisons
How We Compare Contractors
License Verification
All license data is sourced from official California CSLB records and verified regularly.
Review Analysis
Customer reviews are aggregated from Google and analyzed to identify patterns in service quality.
Detailed Comparison
We analyze credentials, insurance, experience, and feedback to highlight meaningful differences.
Not all licensed contractors are created equal. While a valid license is the baseline requirement in California, contractors can vary significantly in experience, insurance coverage, and customer satisfaction.
- Experience matters: A contractor with 15+ years of experience has likely encountered and solved problems that newer contractors haven't faced yet.
- Workers' compensation protects you: If a contractor without workers' comp insurance has an employee injured on your property, you could be held liable.
- Reviews reveal patterns: Individual reviews can be misleading, but patterns across many reviews often reveal a contractor's true strengths and weaknesses.
- Bond amounts vary: A contractor's bond provides financial protection if they fail to complete work as agreed. Higher bonds offer more protection.
Taking time to compare contractors on these factors can save you from costly mistakes and help ensure your project is completed by a qualified professional.
Data Sources: License information from California CSLB. Ratings and reviews from Google. Last verified March 12, 2026.
This comparison is based on publicly available information. We recommend getting multiple quotes and verifying all credentials directly before hiring.
Get in Touch
Have questions or feedback? We'd love to hear from you.