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3rdGen Heating & Cooling vs Nexgen Rooter And Plumbing
Alameda Plumbing Contractors Comparison · Updated March 2026
You're comparing an HVAC contractor to a plumbing contractor—these companies serve completely different home systems and cannot substitute for each other.
| 3rdGen Heating & Cooling | Nexgen Rooter And Plumbing | |
|---|---|---|
| Rating | ★ 5.0 | ★ 5.0 |
| Years Licensed | 4 years | 4 years |
| License # | 1086898 | 1083613 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Berkeley, CA | San Lorenzo, CA |
| Website | 3rdgen.io | nexgenrooter.com |
Key Differences
What Customers Say
3rdGen Heating & Cooling
Customers consistently highlight 3rdGen's clean and meticulous installation work, particularly with mini-split and heat pump systems, combined with responsive scheduling and direct owner communication throughout HVAC projects.
Nexgen Rooter And Plumbing
Customers repeatedly praise Nexgen's thorough on-site problem diagnosis and detailed explanations before work begins, with the owner personally assessing plumbing issues when other contractors only provided phone estimates.
Key Takeaway: While both receive praise for owner involvement, 3rdGen's feedback emphasizes installation craftsmanship and worksite cleanliness during HVAC projects, whereas Nexgen's reviews focus on diagnostic thoroughness and willingness to personally evaluate complex plumbing problems before quoting.
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...
Nexgen Rooter And Plumbing
Juan and his team arrived on time, fixed the issue really quickly, and explained everything thoroughly. Gave me a great price compared to a lot of other plumbers. Would call again if needed in a heart...
Hired this company to have main sewer line replaced. Very efficient and professional. Done in one day. Every employee respectfull and very hard working. Highly reccomend.
Juan did a great job on my clogged sink in a 3 story condo complex. He had appropriate covers already for his shoes when he came inside. Took care of the problem quickly and knew exactly what to do.
Consider 3rdGen Heating & Cooling if...
- ✓ Your project involves heating or cooling systems: furnace repair or replacement, air conditioner issues, thermostat problems, or ventilation concerns
- ✓ You're considering modern heat pump or mini-split installation for efficient heating and cooling, particularly with Mitsubishi equipment
- ✓ You need commercial HVAC service for roof units or larger building systems
- ✓ Your issue relates to indoor air temperature, airflow, or climate control equipment
Consider Nexgen Rooter And Plumbing if...
- ✓ Your project involves water supply or drainage: clogged drains, sewer backups, water line leaks, or pipe failures
- ✓ You're facing sewer lateral issues requiring replacement, trenchless repair, or coordination with city utilities
- ✓ You need whole-house repiping or significant water line work
- ✓ Your problem involves water flow, drainage blockages, or wastewater systems
Questions to Ask Before Hiring
- → Confirm the contractor's license classification matches your actual project need—ask directly if they're licensed for the specific work required
- → For HVAC projects with 3rdGen: Ask about equipment warranties, ongoing maintenance plans, and their experience with your specific heating or cooling system type
- → For plumbing projects with Nexgen: Ask about their camera inspection process for drain issues and whether they handle both diagnosis and repair in-house
- → Request project timelines specific to your scope, as both companies handle emergency calls but also schedule larger installation projects
The Bottom Line
You cannot choose between these contractors based on quality or credentials—you must choose based on which home system needs service. If your furnace failed, your AC stopped cooling, or you're installing a heat pump, contact 3rdGen Heating & Cooling. If your drain is clogged, your sewer line is backing up, or you have water pipe issues, contact Nexgen Rooter And Plumbing. Both companies show equivalent licensing tenure, proper insurance, similar owner-involved approaches, and satisfied customers within their respective trades. The decision is straightforward: identify whether your problem involves climate control or water systems, then contact the appropriately licensed contractor.
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Frequently Asked Questions
If you're uncertain whether water damage stems from a leaking pipe or condensation from HVAC equipment, start with the symptom location. Water near drains, toilets, or under sinks suggests plumbing; moisture near furnaces, air handlers, or AC units suggests HVAC. Most contractors can identify when a problem falls outside their license and will tell you to call the other trade.
Four years represents the growing stage where contractors have moved beyond startup but haven't reached veteran status. Both companies demonstrate capacity for major projects—3rdGen handles commercial rooftop units and crane operations, while Nexgen coordinates sewer lateral replacements with city permits. Ask for references from projects matching your scope and complexity, particularly if your work involves unusual complications or older building systems.
High owner involvement typically characterizes smaller contracting businesses where the licensed owner maintains hands-on participation rather than delegating to employees. This often translates to more consistent quality control and direct communication, but can also mean less crew availability for simultaneous projects. Both companies appear to balance owner presence with efficient scheduling based on their same-day and next-day service capabilities.
Yes, if you have legitimate projects in both trades. A furnace replacement and a sewer lateral repair require contractors with different licenses and expertise. Schedule the companies based on project priority and interdependencies—for example, complete plumbing work before installing new flooring, or finish HVAC ductwork before drywall. Neither company can legally perform the other's licensed work regardless of their willingness to help.
Looking for the Best?
See our ranked list of top plumbing contractors in Alameda.
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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.
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