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Acker Roofing vs Roof By Tom
Contra Costa Roofing Contractors Comparison · Updated March 2026
Acker Roofing brings six times more field experience and a track record handling complex projects including storm damage and solar coordination.
| Acker Roofing | Roof By Tom | |
|---|---|---|
| Rating | ★ 4.9 | ★ 4.8 |
| Years Licensed | 12 years | 2 years |
| License # | 993338 | 1112980 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Concord, CA | Moraga, CA |
| Website | ackerroofing.com | roofbytom.com |
Key Differences
What Customers Say
Acker Roofing
Customers consistently praise Acker for thorough inspections, clear diagnostic explanations, and successfully handling complex projects including storm damage, solar coordination, and leak troubleshooting.
Roof By Tom
Customers emphasize Roof By Tom's quick scheduling, on-time crews, and efficient execution, though some specifically report unresolved leak issues after completion.
Key Takeaway: Acker's reviews focus on diagnostic thoroughness and problem-solving in complicated situations, while Roof By Tom's emphasize speed and straightforward execution with some gap in resolving complex leak problems.
Customer Reviews
Acker Roofing
They are quick to respond and have work quality they honor the work warranty no questions asked why rain or shine they come to repair
Acker Roofing did a great job of replacing our roof. They listened to my specific needs, found a good solution, and troubleshooted problem areas. They were able to fit us into their schedule and the j...
Dean and Acker came recommended to us by a State Farm insurance agent, and we can see why. Dean quickly turned around a fair quote for roofing our house. Rodigo and his partner worked diligently on ev...
Roof By Tom
Roof by Tom did an outstanding job replacing our entire roof. The crew arrived on time, worked efficiently, and kept the area clean throughout the project. The new shingles look amazing and the workma...
We have had several leaks and missing shingles. These guys came out quickly, assessed the damage, and got everything repaired within a day. No upselling, just honest work and fair pricing. It's been a...
Our old roof had seen better days, and we finally decided on a full replacement with 30-year architectural shingles. The crew was professional, cleaned up thoroughly, and the new roof looks amazing. T...
Consider Acker Roofing if...
- ✓ Your roof is older and may have hidden issues like dry rot, compromised decking, or multiple previous patches that require experienced diagnosis during tear-off
- ✓ You need coordination with solar companies for panel removal and reinstallation, or other trades working on your property
- ✓ Your project involves storm damage assessment, insurance documentation, or leak troubleshooting around complex areas like chimneys or patio tie-ins
- ✓ You want a contractor with a 12-year track record of handling complications that arise mid-project without disputes
Consider Roof By Tom if...
- ✓ Your roof replacement is straightforward with no solar panels, no prior leak history, and the structure is relatively new with minimal risk of hidden damage
- ✓ Speed is your top priority and you need the project completed quickly, including fast initial scheduling
- ✓ Your project is a simple scope like gutter replacement, tile repair, or overlay on a sound roof deck
- ✓ You're comfortable accepting some risk in exchange for potentially faster turnaround, and you're prepared to follow up if issues arise
Questions to Ask Before Hiring
- → Ask Roof By Tom specifically about their process for diagnosing leak sources and what happens if the leak returns after completion—request details on warranty response time
- → Ask Acker Roofing for references from projects similar to yours, especially if your situation involves solar coordination or storm damage
- → For both companies, ask how long their current crew has been together and who specifically will be diagnosing issues versus doing the installation
- → If your roof is over 20 years old, ask each contractor what inspection process they use to identify hidden damage before finalizing the bid
The Bottom Line
For most homeowners, Acker Roofing is the safer choice. The 12-year track record provides significantly more confidence in diagnosing problems correctly, handling complications that arise during tear-off, and coordinating complex situations like solar panel removal or storm damage. Roof By Tom offers faster scheduling and works well for straightforward replacements on newer roofs with no leak history, but the combination of only 2 years licensed and some unresolved leak reports creates real risk if your project has any diagnostic complexity. If your roof is older than 15 years, has leaked before, or involves coordination with other trades, Acker's experience is worth prioritizing over speed.
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Frequently Asked Questions
It depends on your roof's condition. For a straightforward tear-off on a newer home with no history of leaks, the gap matters less. But if your roof is older, has had previous repairs, or you've experienced leaks, Acker's 12 years means more exposure to hidden problems like concealed dry rot, failed flashing details, or structural issues that only reveal themselves during tear-off. Roof By Tom's 2-year history means fewer opportunities to develop diagnostic instincts for complicated situations.
Yes, take it seriously. Leak diagnosis is one of the hardest roofing skills to develop and typically requires years of field experience to master. A small number of unresolved leak reports in a 2-year track record suggests the company may still be building that expertise. Ask Roof By Tom directly about their diagnostic process, how they handle callbacks, and request references specifically from customers who had leak repairs, not just replacements.
Only if your project is truly straightforward and speed is your highest priority. Roof By Tom's reviews emphasize quick scheduling and efficient execution, which is valuable for urgent situations or simple replacements. But speed doesn't help if the underlying problem isn't correctly diagnosed. If your roof has any complexity—age, prior leaks, solar panels, or storm damage—Acker's experience is worth a potentially longer wait.
Communication style is similar, but the content differs. Acker's reviews mention clear explanations during inspections and troubleshooting, suggesting they walk you through what they're finding and why. Roof By Tom's reviews emphasize detailed proposals and efficient execution. Both keep you informed, but Acker's communication reflects deeper diagnostic conversation, while Roof By Tom focuses on process and timeline.
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See our ranked list of top roofing contractors in Contra Costa.
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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 11, 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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