Daniel Mahr
19 permits across 1 town in the last 6 months
Plumbing · Gas fitting
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Activity by month
Permits filed each month. The first and last months are partial.
Where they’re working
Permits filed under this contractor by state and town, last 6 months.
Massachusetts 19
Types of projects
By place, trade and period
| Town / city | State | Trade | Last 90 days | Last 6 months | All documented |
|---|---|---|---|---|---|
| Boston | MA | Plumbing | 5 | 11 | 19 |
| Boston | MA | Gas fitting | 4 | 8 | 14 |
Permit timeline
- Oct 9, 2026Gas: Piping gas to 2 replacement heating boilersBoston · Gas fitting · Gas · Open · #G1907948
- Oct 9, 2026Gas: Replacing a heating boilerBoston · Gas fitting · Gas · Open · #G1907956
- Oct 9, 2026Plumbing: Replacing 2 heating boilersBoston · Plumbing · Plumbing · Open · #PL1907952
- Oct 9, 2026Plumbing: Replacing a heating boilerBoston · Plumbing · Plumbing · Open · #PL1907959
- Oct 9, 2026Plumbing: Piping in a replacement indirect water heaterBoston · Plumbing · Plumbing · Open · #PL1908361
- Sep 28, 2026Gas: Piping in a replacement gas water heaterBoston · Gas fitting · Gas · Open · #G1903815
- Sep 28, 2026Plumbing: Piping in a replacement water heaterBoston · Plumbing · Plumbing · Open · #PL1903818
- Aug 31, 2026Gas: Piping in a replacement gas water heaterBoston · Gas fitting · Gas · Open · #G1895103
- Aug 31, 2026Plumbing: Piping in a replacement gas water heaterBoston · Plumbing · Plumbing · Open · #PL1895107
- Jul 31, 2026Plumbing: Piping in a hot water storage tankBoston · Plumbing · Plumbing · Open · #PL1880209
- Jul 21, 2026Plumbing: Piping in an indirect water heater and a mixing valveBoston · Plumbing · Plumbing · Open · #PL1874509
- Jul 20, 2026Gas: Piping in to new gas fired boilersBoston · Gas fitting · Gas · Closed · #G1873147
Older permit history
Filed more than 6 months ago. Shown for history; excluded from 6-month counts and rankings.
- Apr 20, 2026Gas: Piping in a water heater (older)Boston · Gas fitting · Gas · Open · #G1840479
- Apr 20, 2026Plumbing: Piping in a water heater (older)Boston · Plumbing · Plumbing · Open · #PL1840482
- Apr 13, 2026Gas: Piping in a gas boiler (older)Boston · Gas fitting · Gas · Closed · #G1838022
- Apr 13, 2026Plumbing: Piping in a replacement boiler (older)Boston · Plumbing · Plumbing · Closed · #PL1838024
- Apr 9, 2026Plumbing: Installing 2 electric water heaters (older)Boston · Plumbing · Plumbing · Closed · #PL1837490
- Mar 30, 2026Gas: Replacing a failed water heater (older)Boston · Gas fitting · Gas · Open · #G1834450
- Mar 30, 2026Plumbing: Piping in a replacement water heater (older)Boston · Plumbing · Plumbing · Open · #PL1834453
- Feb 26, 2026Plumbing: Replacing a cross connection device on a cooling tower. (older)Boston · Plumbing · Plumbing · Open · #PL1823747
- Feb 10, 2026Plumbing: Replacing a storage tank (older)Boston · Plumbing · Plumbing · Closed · #PL1820020
- Jan 23, 2026Gas: Replacing a gas water heater (older)Boston · Gas fitting · Gas · Open · #G1814038
- Jan 23, 2026Plumbing: Replacing a gas-fired hot water heater (older)Boston · Plumbing · Plumbing · Closed · #PL1814037
- Dec 10, 2025Gas: Pipe gas into new rtu (older)Boston · Gas fitting · Gas · Closed · #G1805245
Permit counts reflect permits filed in public town records naming this contractor as applicant. A permit shows permitted activity, not necessarily completed work, quality of work, or a final inspection.
License
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Sources
- Analyze Boston: Approved Building Permits · retrieved Nov 9, 2026
Not verified: contact info, business address, insurance, reviews. Page built Nov 12, 2026.