Compare Local Pros
Spartan Home Services vs Diamond Heating And Air
Placer General Contractors Comparison · Updated March 2026
These companies serve completely different needs: Spartan handles roofing and solar work, while Diamond is exclusively an HVAC specialist with 36 years of experience.
| Spartan Home Services | Diamond Heating And Air | |
|---|---|---|
| Rating | ★ 4.8 | ★ 4.4 |
| Years Licensed | 7 years | 36 years |
| License # | 1055323 | 586277 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Roseville, CA | Roseville, CA |
| Website | gospartan.com | diamondheatingandair.net |
Key Differences
What Customers Say
Spartan Home Services
Customers consistently praise Spartan's thorough upfront assessments using drone technology, responsive project manager communication, and ability to complete roofing and solar projects efficiently, often ahead of schedule.
Diamond Heating And Air
Customers emphasize Diamond's emergency responsiveness during extreme heat, same-day availability for urgent HVAC failures, and accessible direct owner contact throughout the service process.
Key Takeaway: Spartan's feedback centers on planned project management over days or weeks, while Diamond's reviews highlight rapid emergency response within hours, reflecting the different nature of roofing installations versus HVAC repairs.
Customer Reviews
Spartan Home Services
The folks at Spartan are well organized and responsive. They were able to come out, check out my roof, and provide a very detailed estimate. Their estimate seems competitive, but I am in the process...
I reached out to this solar company for help with an issue I was dealing with. Even though they ultimately weren’t able to take on the work, Ryan was extremely helpful and took the time to point me ...
Dayne is processing our diagnostic and estimate phase he has thus far been detailed and receptive to all concerns expressed. Brent also made himself available for dialog to game plan an effective solu...
Diamond Heating And Air
You are a life saver. Bob showed up and was able to get us up and running again. I am forever grateful for this upstanding gentleman.
Our capacitor went out in July when the temp was going to be 114. I was desperate for anyone that wasn't booked a week out and they delivered! Same day, had us up and running and not melting. Great se...
First class! My 38 year old air conditioner was failing during a recent heatwave. I called on a Sunday and his wife answered the phone to my surprise. That's almost unheard of these days. She was extr...
Consider Spartan Home Services if...
- ✓ You need roofing work, solar installation, or exterior services like window cleaning or emergency storm damage repairs
- ✓ Your project involves coordinating with insurance claims or requires complex permitting for integrated systems like solar with battery backup
- ✓ You value detailed upfront assessments using technology like drone inspections before committing to project scope
- ✓ You prefer a project manager model with dedicated communication throughout multi-day installations
Consider Diamond Heating And Air if...
- ✓ You need heating or air conditioning repair, component replacement, or full HVAC system installation
- ✓ You're facing an emergency situation during extreme temperatures and need same-day service availability
- ✓ You prefer direct owner contact and family-operated business structure rather than working through project managers
- ✓ You have older HVAC equipment requiring experienced diagnosis or own rental properties needing a reliable long-term HVAC partner
Questions to Ask Before Hiring
- → For Spartan: Ask how they coordinate timeline expectations when weather delays roofing work, and request references for projects similar in scope to yours (solar integration, insurance claim work, etc.)
- → For Diamond: Ask about their typical response time for non-emergency service calls during peak summer season, and whether they stock parts for your specific HVAC brand and model
The Bottom Line
This isn't a choice between competitors—these companies serve completely different needs. If you need roofing, solar installation, or exterior work, contact Spartan Home Services. If you need heating or air conditioning service, contact Diamond Heating And Air. Both companies maintain proper licensing, workers compensation, and bonding in their respective trades. Spartan's strength lies in project management for complex, multi-day exterior installations with insurance coordination. Diamond's value comes from 36 years of HVAC expertise and emergency responsiveness with direct owner involvement. If you're planning whole-home improvements requiring both trades, you'll likely hire both companies for their individual specialties.
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Frequently Asked Questions
No, these companies specialize in different trades. Spartan handles roofing and solar work but not HVAC systems. Diamond specializes exclusively in heating and air conditioning, not roofing. You'll need to hire both companies separately if you need work in both areas, which is common during whole-home renovations.
Only if you're comparing HVAC contractors, where Diamond's 36 years provides substantial diagnostic expertise with older systems and edge cases. For roofing work, you'd compare Spartan's seven years against other roofing contractors. The experience difference is irrelevant when comparing across different trades.
Diamond demonstrates clear emergency responsiveness for HVAC failures, with consistent feedback about same-day service during heat waves and direct owner contact for urgent scheduling. Spartan handles roofing emergencies like storm damage requiring immediate tarping, though their emergency response patterns are less emphasized in available feedback. Both can address urgent needs within their respective specialties.
Generally, complete roofing work before HVAC replacement, since roof projects can create dust and vibration that could affect new HVAC installations. Additionally, if you're adding solar panels, coordinate HVAC system sizing with your electrical changes to optimize your new system capacity. Ask both contractors to communicate about scheduling if projects overlap.
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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 07, 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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