Directory / Portsmouth / Plumbing
Robert W. Piersiak Plumbing & Heating
8 permits across 1 town in the last 6 months
Plumbing · Gas fitting · HVAC
Active in Portsmouth in the last 90 days
Business contact from Portsmouth OpenGov record (signed-in), checked Nov 13, 2026. Not from permit records.
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.
New Hampshire 8
Types of projects
Location and projects
Documented permits by town. Pins sit at each town’s center, not at job addresses.
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By place, trade and period
| Town / city | State | Trade | Last 90 days | Last 6 months | All documented |
|---|---|---|---|---|---|
| Portsmouth | NH | Plumbing | 3 | 5 | 5 |
| Portsmouth | NH | Gas fitting | 1 | 2 | 2 |
| Portsmouth | NH | HVAC | 0 | 1 | 1 |
Recent permits
Permit timeline: the most recent permits filed under this contractor in the last 6 months, newest first. Job values are shown only when the town record lists one.
- Oct 23, 2026Installation of gas dryer and rework piping for gas range. Job value $2,000Portsmouth · Gas fitting · Gas · 1 · #GAS-26-135
- Oct 9, 2026Renovation of Kitchen, Full Bathroom, and Laundry Job value $15,000Portsmouth · Plumbing · Plumbing · 1 · #PLMB-26-385
- Oct 9, 2026Renovation of existing bathroom to include rough and finish plumbing for new tile shower, replacement toilet, and repurp Job value $7,000Portsmouth · Plumbing · Plumbing · 1 · #PLMB-26-384
- Oct 9, 2026Rough and finish plumbing for renovation/addition, including relocation and installation of plumbing for four bathrooms, Job value $18,000Portsmouth · Plumbing · Plumbing · 1 · #PLMB-26-383
- Jul 29, 2026Install gas line to crawl space for future gas grill connection, install fireplace including venting through exterior wa Job value $4,000Portsmouth · Gas fitting · Gas · 1 · #GAS-26-89
- Jul 27, 2026Plumbing for kitchen renovation and addition with primary bedroom and bathroom. Job value $6,000Portsmouth · Plumbing · Plumbing · 1 · #PLMB-26-275
- Jul 6, 2026Install new boiler and connect to existing heating system. Job value $13,000Portsmouth · HVAC · Sheet metal · Complete · #MECH-26-370
- Jun 15, 2026Plumbing for first floor bathroom renovation and new primary bathrom for second floor addition. Job value $10,000Portsmouth · Plumbing · Plumbing · 1 · #PLMB-26-217
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
We haven’t verified a state license for this name yet. We only show license details when we can match the record to this contractor with confidence. You can check directly at the New Hampshire Office of Professional Licensure and Certification (OPLC) license lookup.
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Sources
- Portsmouth OpenGov portal · retrieved Nov 13, 2026
Not verified: contact info, business address, insurance, reviews. Page built Nov 15, 2026.