Merrimack Valley Roofing: Roof Replacement & Repair in NH, MA & ME

Family-run roofing company serving the Merrimack Valley since 1976. GAF-certified installers, manufacturer-backed lifetime guarantee, and 24-hour emergency service across three states.

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Family-Run
Since 1976
GAF Master Elite
Installer
Licensed
& Insured
24-Hour
Emergency Service
GAF Master Elite Licensed & Insured Carlisle Certified Alcoa · Drexel · Everlast Family-Run Since 1976

Quick Answer

Merrimack Valley Roofing is a family-run roofing, gutter, and siding contractor based in Sandown, NH and led by owner Daniel Grzyboski. Established in 1976, the company serves Southern New Hampshire, Northeast Massachusetts, and Southern Maine. Merrimack Valley Roofing is a GAF Master Elite installer, a Carlisle certified installer for commercial EPDM and flat roof systems, and a factory-certified installer for Alcoa, Drexel, and Everlast aluminum gutter systems. Services include residential and commercial roof replacement, roof repair, storm damage inspections, gutters, ice and snow removal, and siding. Manufacturer-backed lifetime guarantee and 14-year materials and service warranty coverage depend on the selected system and written terms. 24/7 emergency service is available.

50Years of New England Roofs
3 States Served
1 Family Running It
01 / Established 1976

Family-Owned Roofing Company Serving the Merrimack Valley Since 1976

Merrimack Valley Roofing & Gutter is a family-run roofing outfit based in Sandown, NH. Residential, commercial, and industrial roof replacement and repair across Southern New Hampshire, Northeast Massachusetts, and Maine.

GAF Master Elite installers. Fully licensed and insured. Family-run since 1976, now led by Dan. Call or use the estimate form to discuss your roof and the next steps.

03 / Why MVR

Residential Roof Replacement Done Right Across the Merrimack Valley

When it's time to replace a roof in Southern NH, Northeast Mass, or Maine, we're the crew homeowners and contractors keep calling back. Family-run since 1976, now led by Dan. Talk with us about the roof, the work, and the written estimate.

  • 50 years on local roofsFamily-run since 1976, serving the Merrimack Valley and surrounding region.
  • Most jobs done in a dayCrews show up when they say they will and clean up before they leave.
  • Built for New England weatherWind damage, ice dams, snow loads. Fifty winters and counting.
  • Manufacturer-backed lifetime guaranteeCoverage and eligibility depend on the roof system and written terms, including our 14-year materials and service warranty.
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Merrimack Valley Roofing | Home
Est. 1976 Family-run · GAF Master Elite · Licensed & Insured
04 / For Builders & Developers

Commercial Roofing for Builders, Developers, and Property Managers

General contractors, developers, and property managers across the Seacoast and Merrimack Valley use Merrimack Valley Roofing as their go-to commercial roofing company. Repeat work, on time, on budget, with the same crew leads on every project.

See Commercial Roofing

"As a developer on the Seacoast I completely trust this company, have used over 20 times and will hopefully work with them many more."

Daniel LohDeveloper

"I've used Merrimack roofing on several high end roof finishes. Always shows up on time. Below market pricing. And as a builder who has several crews and several projects. I know what I'm talking about."

Harry GeorgeBuilder

Roof Warranty Coverage and Written Terms

Manufacturer-backed lifetime guarantee and 14-year materials and service warranty coverage depend on the selected roof system and written terms. Review the warranty documents with your estimate so you know what applies to your project.

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05 / What Customers Say

Roof Replacement and Repair Reviews from Local Homeowners and Builders

Pulled directly from our verified review profiles. Real names. Real homes. Real roofs.

Wind Damage Repair

Called yesterday. Fixed today.

"We have used Merrimack Valley Roofing a number of times now (most recently to repair wind damage), and they have been rock solid every time. They are responsive, do quality work quickly, and at a fair price. For this repair I called them yesterday, and my roof is fixed literally less than 24 hours later. Thank you MVR!"

MG
Mark Gibbas Verified Review
Full Roof Replacement

Got it done in 1 day.

"Merrimack Valley replaced my roof 10/9/18 while I was at work. They did an awesome job getting it done in 1 day for a very reasonable price. Barry the foreman was extremely patient with us and answered all our questions when we asked them throughout the process. I would definately recommend this company."

BD
Bonnie D. Verified Review
Ice Dam Removal

Came right out. No damage.

"They did an excellent job removing snow from my roof, came right out and removed the ice dams safely with no damage. Great group of people. Definitely be calling again."

TL
Tor L. Verified Review
Commercial / 20+ Projects

Used them over 20 times.

"Merrimack Valley roofing has help me out on many occasions. I have worked with Barry and with Daniel both lead great teams and offer professional commercial and residential work. Our job sites were left clean and they were overly efficient and I have never had a problem with any of their work. As a developer on the Seacoast I completely trust this company, have used over 20 times and will hopefully work with them many more."

DL
Daniel Loh Verified Review / Developer
High-End Builder Work

Below market pricing.

"I've used Merrimack roofing on several high end roof finishes. Always shows up on time. Below market pricing. And comes back when need. And as a builder who has several crews and several projects. I know what I'm talking about. They even clean up after themselves. Would highly recommend."

HG
Harry George Verified Review / Builder
Roofing & Gutter

Professional, prompt, courteous.

"I do recommend Merrimack Valley Roofing & Gutter to anyone looking for professional, prompt and courteous service. Very dependable and prices are comparable."

EH
Evelyn Hazel Verified Review
06 / Trusted Manufacturer Partners

GAF Master Elite, Carlisle, Alcoa, Drexel & Everlast Certified Installer

Our documented installer credentials cover GAF roofing, Carlisle commercial EPDM and flat roofs, and Alcoa, Drexel, and Everlast gutter systems. Manufacturer coverage varies by product, installation, and warranty terms. We explain the documents that apply to your selected system.

07 / Where We Work

Roof Replacement Service Areas Across Southern NH, NE Mass, and Maine

If your town isn't listed, call us anyway. Odds are we've already worked on a roof up the street.

A.

Southern NH

  • Salem
  • Derry
  • Windham
  • Hampstead
  • Sandown
  • Pelham
  • Nashua
  • Manchester
  • Plaistow
B.

Northeast MA

  • Methuen
  • Andover
  • N. Andover
  • Lawrence
  • Haverhill
  • Newburyport
  • Amesbury
  • Salisbury
  • Lowell
C.

Southern ME

  • Kittery
  • York
  • S. Berwick
  • N. Berwick
  • Eliot
  • Wells
08 / Quick Estimate

Roof Replacement Cost Estimator

Slide the bar to the rough size of your roof. We'll show you a directional cost range based on a standard architectural shingle replacement across Southern NH, Northeast Mass, and Maine.

No two roofs are the same. Pitch, layers, decking, flashings, and skylights all change the number. The only way to get a real price is for us to climb up and look. That part is free.

Roof Size
1,800 sq ft
Estimated Roof Replacement Cost
$10,710 – $15,120
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09 / Common Questions

Roof Replacement and Repair FAQs

Real answers in plain English. If your question isn't here, call us at 978-662-7079 and we'll give you a straight answer on the phone.

How soon can someone come look at my roof?

We offer 24/7 emergency service for active leaks and storm damage. Call 978-662-7079 to discuss the situation and availability. For planned roof repairs or replacement, call or use the form to arrange an inspection and estimate.

Do I need to replace the whole roof or can it be repaired?

Depends on the age, the damage, and what's underneath. We climb up, take a real look, and tell you straight. If a repair is a sound option, we'll explain it. If the condition points toward replacement, we'll explain why.

How much does roof replacement cost?

Every estimate is written, itemized, and free. The number depends on roof size, pitch, layers to tear off, decking condition, flashings, and the material you pick (asphalt, metal, slate, or rubber). Use the calculator above for a directional range, then call us for a real number.

Do I have to be home for the work?

No. Most of our customers are at work while we're on the roof. We send the same crew lead every day so you know who's there. Crews show up early, clean up before they leave, and lock the yard gate when they go.

What about my plants, gutters, and siding during the install?

We tarp the shrubs, run magnets across the lawn for nails, and protect siding and gutters before any tear-off starts. If your gutters or siding need work too, we can handle those in the same visit. One crew, one cleanup, one bill.

What if something needs attention after the job is done?

Call 978-662-7079 and explain what needs attention. We will discuss the next steps. Manufacturer-backed lifetime guarantee and 14-year materials and service warranty coverage depend on the roof system and written terms.

Do you handle ice dams and emergency leaks in winter?

Yes. Ice dam removal and roof snow clearing across all three states. We assess the roof, access, and ice buildup before choosing an approach suited to the property. Call our 24/7 emergency service to discuss an active leak or winter roof problem.

Do you work with insurance claims for storm damage?

We document visible roof damage and provide a written assessment and estimate for your records. Contact your insurer about its claim process, coverage, and deductible. The insurer determines coverage under your policy.

10 / Let's Talk

Get a Free Roof Replacement Estimate

Pick up the phone or fill out the form. Tell us about the property and the work you need so we can follow up about an estimate. Free estimates on roof replacement and repair across Southern NH, Northeast Mass, and Maine.

Call us, 24/7 for emergencies 978-662-7079

Mon-Sat 7am-7pm regular hours. 24/7 for active leaks and ice dams.

Or send us your info Fill out the form →

Tell us what you need. Free, no-pressure estimate.