MW Sanierung vs A-Z Bauunternehmung: which is better? Comparison 2026
By our public methodology MW Sanierung scores 60 out of 100 and A-Z Bauunternehmung scores 53. Below: the factors and facts where they differ, each fact with its source.
Score breakdown
| MW Sanierung | A-Z Bauunternehmung | |
|---|---|---|
| Contract and guarantee | 50 | 100 |
| Legal entity and insurance | 75 | 25 |
| Transparency | 100 | 40 |
| Experience | 21 | 38 |
| Service | 33 | 33 |
Pros and cons
MW Sanierung
- Written contract or fixed estimate stated
- Prices published on the site
- Legal entity with registry number given
- Works or liability insurance stated
A-Z Bauunternehmung
- Long guarantee on work stated
- Written contract or fixed estimate stated
- Completed work shown on the site
- Trade body membership stated
- Prices not published on the site
Facts side by side
| Fact | MW Sanierung | A-Z Bauunternehmung |
|---|---|---|
| Guarantee on work | Not verified | 60 mo a-zbauunternehmung.de |
| Written contract or fixed estimate | Yes mw-sanierung.de | Yes a-zbauunternehmung.de |
| Legal entity with registry number | Yes mw-sanierung.de | Not verified |
| Works or liability insurance | Yes mw-sanierung.de | Not verified |
| Trade body | Not verified | Yes a-zbauunternehmung.de |
| Prices published | Yes mw-sanierung.de | No a-zbauunternehmung.de |
| Portfolio of work | Yes mw-sanierung.de | Yes a-zbauunternehmung.de |
| Year founded | Not verified | 2003 a-zbauunternehmung.de |
| Completed projects (stated) | 50 mw-sanierung.de | Not verified |
| Contact channels (of 4) | 4 mw-sanierung.de | 4 a-zbauunternehmung.de |