--- title: A3S Engineering & Maintenance Services.: Proof of Work url: https://thelocalproof.com/business/a3s-engineering-maintenance-services-sanford/ updated: 2026-10-31 --- Skip to content [Local **Proof**](https://thelocalproof.com/) Proof of real work, with the source and date. [For businesses](https://thelocalproof.com/claim/) - [What counts as proof](https://thelocalproof.com/what-counts-as-proof/) - [Corrections](https://thelocalproof.com/corrections/) - [How we make money](https://thelocalproof.com/how-we-make-money/) 1. [Home](https://thelocalproof.com/) 2. A3S Engineering & Maintenance Services. Evidence ledger AC Maintenance & Tune-Up · Sanford Updated Oct 31, 2026 # A3S Engineering & Maintenance Services. What the records show A3S Engineering & Maintenance Services. has actually done, kept apart from what it says about itself. - **2** proven - **3** claimed - **1** not matched yet [Call +1 321-483-0741](tel:+13214830741) Request a quote [Website](http://www.airductcleaningbya3s.com/) ## Evidence ledger ### Proven From public records 1. Review history **10** public reviews, 5.0 average. Public review platforms · dated count Oct 29, 2026 2. Operating status Current business listings show the business as open and operating. Google Maps listing · checked Oct 29, 2026 ### Claimed The business's word 1. Services AC Maintenance & Tune-Up, Air Duct Cleaning, Air Duct Cleaning Companies, Ductwork & Air Quality Systems, AC & HVAC Maintenance and Tune-Ups, Indoor Air Quality Systems Service area Sanford Hours Sunday: Closed; Monday: 7AM-5PM; Tuesday: 7AM-5PM; Wednesday: 7AM-5PM; Thursday: 7AM-5PM; Friday: 7AM-5PM; Saturday: 7AM-5PM From its listing or the business. Not checked against a record. ### Not matched yet Looked for, not matched yet - **Permit history.** No permit records matched yet. Permits are often filed under a license holder's or parent company's name, and not every county publishes them online. A missing match is not a finding against A3S Engineering & Maintenance Services.. Each line shows what the record said on the date shown. It isn't a rating of workmanship, and it can't be bought. [What counts as proof](https://thelocalproof.com/what-counts-as-proof/) ## Where it ranks - [Air Duct Cleaning Companies in Sanford No. 3](https://thelocalproof.com/sanford/air-duct-cleaning-companies/) ## Ask A3S Engineering & Maintenance Services. for a quote Goes to **A3S Engineering & Maintenance Services.** only. They may pay us for the request; it doesn't change their evidence. ### Contact details Phone [+1 321-483-0741](tel:+13214830741) Address 189 Venetian Bay Cir, Sanford, FL 32771 Website [airductcleaningbya3s.com](http://www.airductcleaningbya3s.com/) Map [Directions](https://www.google.com/maps/place/A3S+Engineering+%26+Maintenance+Services./@28.816603399999998,-81.2932793,14z/data=!4m8!1m2!2m1!1sA3S+Engineering+%26+Maintenance+Services.!3m4!1s0x88e713ab78c15555:0xc54c5c5ae267c2b!8m2!3d28.816603399999998!4d-81.2932793) Questions ## Questions about A3S Engineering & Maintenance Services. Is A3S Engineering & Maintenance Services. licensed and registered? Checked on October 29, 2026: operating status confirmed. The checks table on this page lists each source. How is A3S Engineering & Maintenance Services. rated? 5.0 out of 5 from 10 public reviews. Where does A3S Engineering & Maintenance Services. appear on LocalProof? On the air duct cleaning companies list for Sanford, at number 3. How do I contact A3S Engineering & Maintenance Services.? Call +1 321-483-0741. Or use the website link on this page. ## Is this your business? Claim this profile for free and point us to your permits or records. We add what checks out, with the source and date. You can't pay to change a line. [Badges for A3S Engineering & Maintenance Services.’s website](https://thelocalproof.com/badges/a3s-engineering-maintenance-services-sanford/) [Claim or add proof](https://thelocalproof.com/claim/)[Or report an error](https://thelocalproof.com/corrections/) Source: Google Maps data, October 29, 2026 [Call](tel:+13214830741) Request a quote [Local **Proof**](https://thelocalproof.com/) Proof that a business actually does the work: permits, review history and public records, each with its source and date. What a business only claims is labelled as a claim. ## Directory - [All proof lists](https://thelocalproof.com/) - [Air Duct Cleaning Companies, Sanford](https://thelocalproof.com/sanford/air-duct-cleaning-companies/) - [Request quotes](https://thelocalproof.com/quote/) ## Proof - [What counts as proof](https://thelocalproof.com/what-counts-as-proof/) - [Corrections](https://thelocalproof.com/corrections/) - [About LocalProof](https://thelocalproof.com/about/) - [Contact](https://thelocalproof.com/contact/) - [Data sources](https://thelocalproof.com/data-sources/) - [Privacy](https://thelocalproof.com/privacy/) - [Terms](https://thelocalproof.com/terms/) ## Businesses - [Claim a profile or add proof](https://thelocalproof.com/claim/) - [Report an error](https://thelocalproof.com/corrections/) - [How we make money](https://thelocalproof.com/how-we-make-money/) **How we make money.** Businesses can pay for profile tools and lead notifications, and may pay when you send them a quote request. Money can't add a permit, change a date or move a business up a list. Sponsored placements are labelled. © 2026 LocalProof · [About](https://thelocalproof.com/about/) · [Contact](https://thelocalproof.com/contact/) · [Privacy](https://thelocalproof.com/privacy/) · Every fact is shown as of the date beside it