Directory
Water Damage, Mold and Restoration Companies in Portsmouth, New Hampshire
Portsmouth and the Seacoast has 13 restoration and remediation companies in our listings across 5 cities, with 549 public reviews between them.
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What Makes Portsmouth, New Hampshire Different
Portsmouth is one of the oldest cities in the country, and many homes on the Seacoast are well over a century old. Granite and brick foundations seep in wet seasons, old roofs leak around chimneys, and lead paint is common in homes built before 1978. Old plaster, pipe wrap and floor tile may contain asbestos, so test before you tear anything out.
Winters bring nor’easters, heavy wet snow and many freeze and thaw cycles. Ice dams form along the eaves of older homes with little attic insulation, and meltwater backs up under the shingles into ceilings and walls. Pipes in exterior walls and unheated spaces freeze and split, and the leak usually shows up when things warm up.
Coastal storms push high tides into low streets along the harbor, the Piscataqua and the beaches. Floodwater from outside is contaminated, and a standard homeowners policy does not cover it. Salt water corrodes wiring fast, so have an electrician check anything that was under water before the power goes back on.
Most Reviewed in Portsmouth and the Seacoast
- 1
Paul Davis Restoration of Southern New Hampshire, Maine & Boston North (Essex County)24/7
Google rating 4.4 from 126 Google reviews
Most Reviewed 2026
Water DamageMoldMold TestingFire and SmokeStorm
- 2
Elite Restoration Inc24/7
Google rating 5.0 from 118 Google reviews
Top Rated 2026
Water DamageMoldFire and SmokeSewageBiohazard
- 3
Insurcomm Restoration24/7
Google rating 4.5 from 76 Google reviews
Highly Rated 2026
Water DamageMoldMold TestingFire and SmokeSewage
- 4
E-Z Clean Carpet & Upholstery LLC
Google rating 4.8 from 72 Google reviews
Top Rated 2026
Water DamageMoldOdor
- 5
All Dry Services of Southern Maine24/7
Google rating 5.0 from 63 Google reviews
Top Rated 2026
Water DamageMoldMold TestingFire and SmokeSewage
- 6
- 7
MB2 Restore LLC24/7
Google rating 5.0 from 30 Google reviews
Top Rated 2026
Water DamageMoldMold TestingFire and SmokeStorm
- 8
Garvey Construction llc
Google rating 5.0 from 9 Google reviews
Verified Remediation Pro
Water DamageFire and SmokeStorm
- 9
- 10
Apple Painting and Restoration, LLC
Google rating 5.0 from 2 Google reviews
Verified Remediation Pro
Water Damage
- 11
1-800-BoardUp of The Seacoast24/7
Google rating 2.0 from 1 Google review
Verified Remediation Pro
Water DamageMoldMold TestingFire and SmokeSewage
- 12
Checking a License in Portsmouth and the Seacoast
New Hampshire does not license general contractors at the state level, though plumbers and electricians need state licenses. Maine is the same, with no statewide general contractor license but state licenses for plumbers and electricians. On either side of the river, check with your city or town building department about permits before rebuild work starts. Neither state has a separate mold license, so ask whether the technicians hold industry certification in water damage and mold remediation, and ask for proof of liability and workers compensation insurance. If the home was built before 1978, ask whether the crew is certified for lead safe renovation.
What Jobs Cost in Portsmouth and the Seacoast
| Job | Typical in Portsmouth and the Seacoast | National typical |
|---|---|---|
| Water Damage Restorationper job, a single room of clean water | $1,100 to $3,200 | $1,000 to $3,000 |
| Water Damage Restorationper job, a typical drying job | $1,400 to $6,500 | $1,300 to $6,000 |
| Mold Remediationper job, a typical professional job | $1,600 to $6,500 | $1,500 to $6,000 |
| Mold Remediationper job, an attic | $2,200 to $8,100 | $2,000 to $7,500 |
| Mold Inspection and Testingper visit, a visual inspection | $225 to $650 | $200 to $600 |
| Mold Inspection and Testingper visit, an inspection with samples | $325 to $1,100 | $300 to $1,000 |
| Mold Inspection and Testingper visit, a clearance test | $325 to $850 | $300 to $800 |
| Fire and Smoke Damage Restorationper room, light smoke cleaning | $550 to $2,700 | $500 to $2,500 |
| Fire and Smoke Damage Restorationper job, a contained kitchen or room fire | $3,200 to $27,000 | $3,000 to $25,000 |
| Asbestos Testing and Abatementper job, a single area in a home | $1,300 to $5,400 | $1,200 to $5,000 |
| Asbestos Testing and Abatementper job, a 200 square foot kitchen floor | $1,600 to $3,200 | $1,500 to $3,000 |
| Asbestos Testing and Abatementper job, attic vermiculite, whole-house siding or several areas | $11,000 to $21,500 | $10,000 to $20,000 |
| Lead Paint Testing and Abatementper visit, an XRF inspection of a typical home | $325 to $750 | $300 to $700 |
| Lead Paint Testing and Abatementper visit, a risk assessment | $550 to $1,600 | $500 to $1,500 |
| Hoarding Cleanupper job, light clutter in a few rooms | $1,100 to $3,200 | $1,000 to $3,000 |
| Hoarding Cleanupper job, most homes | $2,200 to $16,000 | $2,000 to $15,000 |
| Hoarding Cleanupper job, biohazard or structural damage | $16,000 to $27,000 | $15,000 to $25,000 |