Home / San Antonio, Texas / National Building Services
National Building Services
Commercial cleaning in San Antonio
About National Building Services
National Building Services (NBS) is an independent commercial cleaning company in San Antonio. Its Google description says NBS is a member and supporter of the U.S. Green Building Council and supports sustainable building practices. That focus may suit buyers with green building or LEED goals.
The website lists recurring janitorial service, day porter service, post-construction cleanup, floor care, carpet and window cleaning and disinfection, for offices, medical facilities, industrial and warehouse sites and banks. It mentions evening and after-hours cleaning and offers a free walkthrough before quoting.
National Building Services has a 5.0 rating from 6 Google reviews; of the 3 most recent with text, one describes a long-term client relationship. Before signing, ask for a certificate of insurance, its staff screening process, references from comparable facilities, and the contract and cancellation terms in writing before you sign. If sustainability matters to you, also ask which cleaning products and methods the company uses and whether it can document them for green building reporting.
Services and facilities
As listed on the contractor's website.
Services
- Recurring janitorial
- Post-construction cleaning
- Floor care (strip, wax, burnish)
- Carpet cleaning
- Window cleaning
- Disinfection
- Day porter
Facilities
- Offices
- Medical & healthcare
- Industrial & warehouse
- Banks
What recent reviewers mention
From the 3 most recent Google reviews with text. We count themes; we don't quote reviews.
- 1 of 3 reviewslong-term clients
The owner replied to 0% of the recent reviews. Most recent review: February 2024.
Data checked October 2026. Is something wrong or out of date? Tell us.
Buyer's checklist
3 answers we found for National Building Services. Everything marked "Ask them" still needs an answer in writing before you sign.
Where each fact comes from:Public recordStated on websiteGoogle reviews
Facility fit and experience
- Free walkthrough before quotingStated on website
- Long-term clients (1 of 3 recent reviews)Google reviews
- Ask them:Can you provide references from comparable clients, including a long-term client?
Scope and cleaning standards
- Evening / after-hours cleaningStated on website
- Ask them:Can you provide a written checklist of tasks per visit, weekly and monthly?
- Ask them:What is excluded or priced separately (carpet extraction, floor refinishing, windows)?
- Ask them:Who supplies and restocks paper products, soap and liners?
Reliability and staffing
- Ask them:Will we have the same team, and who supervises them?
- Ask them:Who covers sickness, vacations and turnover?
- Ask them:If a visit is missed, when will you notify us and restore service?
Quality control and communication
- Ask them:Who inspects the work, how often, and can we see an example report?
- Ask them:Who is our main contact, and how do we reach someone after hours?
- Ask them:What response and correction times will you commit to in writing?
Insurance, security and accountability
- Ask them:Can you provide current certificates for general liability and workers' compensation?
- Ask them:What screening is done before staff get access to our building?
- Ask them:How are keys, access codes and alarms handled?
Pricing and contract terms
- Ask them:What is the total recurring price, and what triggers extra charges?
- Ask them:How long is the rate fixed, and how much notice is given for increases?
- Ask them:What is the contract term, does it renew automatically, and what are the cancellation terms?
Startup and transition
- Ask them:When can you start, and who manages onboarding?
- Ask them:Can we agree on a trial period and an early review date?