Trust & Licensing
74/100
Licensing, insurance, bonding, BBB record, and verified credentials.
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Marks Heating & Air INCHVAC in El Cajon · Reviews & Verification
El Cajon, CA
Scored Jun 9, 2026
C
314/700
CSLB licensed, bondedTradeScore measures verifiable business health, not workmanship.
HVAC$Great Value38 / 91 checks
Found on
TradeScore™
Grade Breakdown
How the TradeScore works
We score this contractor out of 700 across 7 categories using public data: licensing, reviews, their website, and more. Higher is better. Each bar below is that category out of 100. Open a card to see the checks behind it.
Online Presence
64/100
Website quality, page speed, structured data, and Google profile completeness.
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Reputation
71/100
Ratings, review volume, recency, owner responsiveness, and sentiment.
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Pricing & Value
42/100
Transparency, financing options, and what customers say about cost.
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Service Quality
9/100
Warranties, guarantees, emergency service, certifications, and customer care.
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Website Health
42/100
Technical site fundamentals, Core Web Vitals, semantic HTML, sitemap, canonical URLs, Open Graph + Twitter Card metadata, content freshness, named services.
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Smart Search
12/100
How well your site is structured for AI search engines to read and recommend, LocalBusiness + Review + FAQ + Service/Product schemas, llms.txt, NAP consistency.
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What Customers Say
Reviews
Review summary
Marks Heating & Air INC is viewed as fair and competitive on pricing. Reviewers consistently highlight fast response times.
The themes below are summarized from the actual text of those reviews.
Summarized from 20 Google reviews
What customers love
- Fast response times5Google 5
- Strong recommendations5Google 5
- Clean work areas2Google 2
- Reliability and honesty2Google 2
- Professional technicians1Google 1
Common concerns
No major concerns
We did not find recurring complaints in this contractor’s reviews.
7 months ago
Mark is great, he responds quickly pricing is very fair & he does what he says, I had a new ac/heat system installed in my daughters condo in mission valley & Mark has great pricing, was there when he said he would b…
Jason Pvia Google
5 years ago
Spoke to Mark about installing ductless units in our 1950's home. He came out that same day, gave us honest advice and a great price! I was not expecting that. His guys came in and installed the units with great class…
Mary Garciavia Google
7 years ago
Starter capacitor on the heat exchanger went out during our 100°+ heatwave. I called 4 companies with 3 day to a week response times. Called Mark and he came out the same day. 20 minute fix. And he found a duct proble…
Chris Hinshawvia Google
4 years ago
Mark was spot on in getting the job done on time and the final bill was actually less than the quoted price. I was in shock. I have never seen this happen from any AC company in my life. I would highly recommend Mark'…
Donald Shermanvia Google
5 years ago
I can not say enough great things about Mark! He is so sweet and so quick! I recommend to EVERYBODY! I will be telling everyone about this guy hes amazing! Thank you thank you thank you so much for everything!
Brianna Lopezvia Google
What They Do
Services, specialties, and brands
Services
HeatingHVACFurnaceAir Conditioning
TradeScore ratings are generated algorithmically from publicly available data including California CSLB license records, Better Business Bureau filings, Google Business Profile data, and automated website analysis. Scores reflect the data available at the time of scoring (see date above) and are updated periodically. Scores are informational tools designed to help homeowners research contractors. They are not endorsements, guarantees of work quality, or recommendations to hire or avoid any contractor. Data accuracy depends on public sources and may not reflect recent changes. If you are a contractor and believe your information is inaccurate, visit tradesadvisory.com/dispute to request a review. See our full Terms of Service for details.