Portsmouth Roof Replacement Costs
Free. No obligation. No credit card required.
The average cost to replace a roof in Portsmouth, New Hampshire is $14,474.
Enter your address into our roofing calculator, select the roofing material and instantly view estimates from top-rated contractors in Portsmouth.
7,227 Roofs measured by our roofing calculator in Portsmouth, NH
$14,474 Average roof replacement cost for Asphalt Shingle roofs in Portsmouth, NH
7 Highly rated roofers in Portsmouth, NH
Roof Replacement Cost in Portsmouth, New Hampshire
The average cost to replace a roof in Portsmouth is about $14,474. This is based on the average roof size (with pitch) in Portsmouth of 2,139 sqft (21.33 squares) and the area’s most common material, Asphalt Shingle, which run about $6.77 per sqft ($677/square).
Average Cost by Material
Roof replacement cost can vary greatly depending on the type of roofing material used. The costs listed below are based on a 2,139 sqft roof (21.33 squares) in Portsmouth.
Roof Replacement Costs by Home Size
Home size is one of the biggest factors contributing to replacement costs. This table shows replacement costs for different home sizes for each roofing material in Portsmouth.
| SQFT | SQUARES | COST |
|---|---|---|
| 500 | 5 | $3,383 |
| 1,000 | 10 | $6,767 |
| 1,500 | 15 | $10,150 |
| 2,000 | 20 | $13,533 |
| 2,500 | 25 | $16,917 |
| 3,000 | 30 | $20,300 |
| 3,500 | 35 | $23,683 |
| 4,000 | 40 | $27,067 |
| 4,500 | 45 | $30,450 |
| 5,000 | 50 | $33,834 |
| SQFT | SQUARES | COST |
|---|---|---|
| 500 | 5 | $3,959 |
| 1,000 | 10 | $7,917 |
| 1,500 | 15 | $11,876 |
| 2,000 | 20 | $15,834 |
| 2,500 | 25 | $19,793 |
| 3,000 | 30 | $23,751 |
| 3,500 | 35 | $27,710 |
| 4,000 | 40 | $31,668 |
| 4,500 | 45 | $35,627 |
| 5,000 | 50 | $39,585 |
| SQFT | SQUARES | COST |
|---|---|---|
| 500 | 5 | $11,345 |
| 1,000 | 10 | $22,690 |
| 1,500 | 15 | $34,035 |
| 2,000 | 20 | $45,380 |
| 2,500 | 25 | $56,725 |
| 3,000 | 30 | $68,070 |
| 3,500 | 35 | $79,415 |
| 4,000 | 40 | $90,760 |
| 4,500 | 45 | $102,105 |
| 5,000 | 50 | $113,450 |
How Roof Replacement Impacts Home Value
Homeowners frequently want to know how replacing their roof could impact the overall value of their home. This table shows how roof replacement, by material and home size, could impact the value of an Portsmouth home.
| SQFT | VALUE ADDED |
|---|---|
| 500 | $2,030 |
| 1,000 | $4,060 |
| 1,500 | $6,090 |
| 2,000 | $8,120 |
| 2,500 | $10,150 |
| 3,000 | $12,180 |
| 3,500 | $14,210 |
| 4,000 | $16,240 |
| 4,500 | $18,270 |
| 5,000 | $20,300 |
| SQFT | VALUE ADDED |
|---|---|
| 500 | $2,415 |
| 1,000 | $4,829 |
| 1,500 | $7,244 |
| 2,000 | $9,659 |
| 2,500 | $12,073 |
| 3,000 | $14,488 |
| 3,500 | $16,903 |
| 4,000 | $19,318 |
| 4,500 | $21,732 |
| 5,000 | $24,147 |
| SQFT | VALUE ADDED |
|---|---|
| 500 | $6,353 |
| 1,000 | $12,706 |
| 1,500 | $19,060 |
| 2,000 | $25,413 |
| 2,500 | $31,766 |
| 3,000 | $38,119 |
| 3,500 | $44,472 |
| 4,000 | $50,826 |
| 4,500 | $57,179 |
| 5,000 | $63,532 |
Portsmouth Roof Statistics
| The number of roofs our tech has scanned | 7,227 |
| Average roof size (with pitch) | 2,139 Square Feet |
| Average roof slope | 6/12 Pitch or 26.57 Degrees |
| Most common roof type | Asphalt Shingle |
Frequently Asked Roofing Questions In Portsmouth, New Hampshire
Labor Costs
How much does roofing labor cost in Portsmouth, New Hampshire compared to nearby areas?
In Portsmouth, NH the prevailing charge for roofing labor tends to land in the $2.50‑$4.50 per‑square‑foot corridor, $45‑$80 an hour, making it a shade steeper than the tariffs posted in adjacent Dover, Rochester and Kittery a bump owed to the grip of historic‑district statutes the brine‑kissed coastal exposure and an unremitting year‑round flow of work. By contrast the inland hubs of Manchester and Nashua usually settle on $2.00‑$3.50, per foot accompanied by a more modest hourly wage structure.Weather & Climate Considerations
How does Portsmouth, New Hampshire's weather affect roof lifespan?
Portsmouth’s Atlantic shoreline and harbor bring 45‑50 inches of rain each year about 40‑60 inches of snow frequent Nor’easter gusts laced with salt spray and a modest amount of summer sunshine. Those relentless freeze‑thaw cycles, ice dams, wind‑driven rain and briny air gnaw, at shingles corrode flashing. Can shave years off a roof’s lifespan unless maritime‑grade materials are used.What is the most common cause of roof damage in Portsmouth, New Hampshire?
Portsmouths rooftops reveal that the common source of damage is the ceaseless battering by coastal storms and the fierce, high‑speed winds that surge in with Nor’easters and Atlantic gales. The salty spray, from the Piscataqua, combined with the freeze‑thaw cycles erodes shingles and flashing at an accelerated pace and often triggers the formation of winter ice dams.What is the best time of year to replace a roof in Portsmouth, New Hampshire?
In Portsmouth, NH, the window for swapping out a roof stretches from late spring into early fall, roughly late May, through September. During those months temperatures usually stay above 40 °F. The air is drier which keeps the risk of freezing, snow or a Nor’easter to a minimum. Summer’s reliable warmth helps shingle sealing adhere and speeds up drying though the lingering coastal humidity and occasional storms still have to be factored in.Insurance & Storms
How common are storm-related roof claims in Portsmouth, New Hampshire?
Portsmouth’s stretch along the Piscataqua River and out, onto the Atlantic means storm‑related roof claims are a sight. After a Nor’easter a bout of flooding a windstorm or even seasonal ice claim numbers surge, with waterfront homes and older shingle roofs taking the biggest hit. As a result the frequency of these claims outpaces that of New Hampshire towns especially on properties that sit directly on the exposed coastline.What natural disasters in Portsmouth, New Hampshire cause the most roof replacements?
In Portsmouth New Hampshire the majority of roof replacements stem from coastal wind and water damage, nor’easters and hurricanes that bring fierce storm‑driven gusts, downed trees and tidal surges from the Piscataqua River and harbor. The havoc left by Hurricane Sandy in 2012 and Tropical Storm Isaias in 2020 serves as a reminder while heavy snow and ice storms add their own strain often leading to roof collapses and shingle failure.Top Roofing Contractors in Portsmouth, New Hampshire
Signature Roofing Co
5
44 reviews
1465 Woodbury Ave Ste 452
Portsmouth, NH 03801
(603) 319-6125
United Home Experts
4.9
44 reviews
155 Fleet Street
Portsmouth, NH 03801
(603) 314-8800
Seacoast NH Roofers
5
1 review
406 The Hill
Portsmouth, NH 03801
(603) 819-5694
Team Kelley Construction, LLC
3
2 reviews
516 Greenside Avenue
Portsmouth, NH 03801
(603) 312-4832
JMS ROOFING LLC
5
1 review
1 Osprey Drive
Portsmouth, NH 03801
(603) 520-3481
Show 2 More
Edmunds General Contracting
5
1 review
Portsmouth, NH 03801
(603) 294-4900
James & Whitney Co.
5
1 review
280 Heritage Avenue
Portsmouth, NH 03801
(603) 828-4457
Portsmouth Roof Costs Compared to Other New Hampshire Cities
Manchester, NH
- $1,875 less expensive
- Avg Cost: $12,599
Nashua, NH
- $1,875 less expensive
- Avg Cost: $12,599
Concord, NH
- $1,875 less expensive
- Avg Cost: $12,599
Rochester, NH
- $1,875 less expensive
- Avg Cost: $12,599
Derry, NH
- About the same
- Avg Cost: $14,474