Discover the top 5 qualities to look for in a roofing contractor on Martha's Vineyard and Cape Cod
Almost everything that decides how long a roof will last is hidden by the time the crew packs up. The ice and water membrane along the eaves, the step flashing tucked behind the siding at a dormer, the spacing of the nails on every course: none of it can be seen from the driveway. A new roof on Martha's Vineyard or on Cape Cod looks finished the day the last ridge cap goes on, and it keeps looking finished right up until a February nor'easter finds whatever was rushed.
So the choice of a roofing contractor is mostly a choice about work you will never inspect yourself. You are trusting someone's habits on a dozen details you cannot see, often on a house that sits closed from Columbus Day to Memorial Day. Before comparing prices, it helps to know what a complete scope of roofing contractor services for coastal homes should cover, so that the bids on your table describe the same job.
Why choosing a roofing contractor matters on the Cape and the Islands
Importance of choosing the right roofing contractor
The weather this month has been a fair test. As the offshore nor'easter that became Subtropical Storm Josephine pulled away in late October, the Boston Globe reported a 45 mph gust on Martha's Vineyard, with steady 30 to 40 mph gusts across the Cape the following day. Nothing about that storm was historic. Still, wind of that strength works on the same places every time: the starter course at the eaves, the rakes, the ridge, and any shingle that was nailed too high or never sealed down.
A roof installed with care shrugs that off. A roof installed in a hurry starts to lift at the edges, and the damage is quiet at first. One tab folds back, rain gets under the lap, and the decking below begins to take on water that nobody sees until a ceiling stain shows up weeks later.
Coastal exposure adds its own layer. Salt air shortens the life of fasteners and metal flashing, wind-driven rain pushes water sideways instead of letting it run down the slope, and freeze-thaw cycles open any gap that was left behind. These are the reasons coastal homes need different roofing systems than houses inland, and a contractor who works here every year should be able to explain each one without reading from a brochure.
Then there is the calendar. Many homes on Martha's Vineyard and on Cape Cod are second homes or rentals, checked by a caretaker every week or two in the off season. A small installation flaw on an empty house can run for a month before anyone notices, and hidden roofing problems grow more expensive over time in ways that a full-time resident would usually catch much earlier.
Overview of the qualities to consider
The five qualities below are the ones that separate a contractor you can hand a key to from one you will need to supervise: experience and expertise, licensing and insurance, references and reviews, detailed estimates, and the warranty and service that follow the job. None of them is complicated to check. Together they tell you far more than the number at the bottom of a quote, because a roof works as a system, and the contractor who treats it that way usually shows it in all five areas at once.
Quality #1: Experience and expertise
Years in business
Time in business matters for a simple reason: it means a company has had to live with its own work. A roofer who has been installing on the Cape and the Islands for many seasons has seen which of their roofs came through hard winters cleanly and which needed a return visit, and the good ones have adjusted their methods accordingly. A newer company may be perfectly skilled, but it has not yet been tested by eight or ten coastal winters.
Ask to see older work, not just last summer's projects. A roof that still looks straight and tight several years after installation is better evidence than any photo taken the day the crew left. Browsing a contractor's portfolio of completed roofing projects is a reasonable first step, and a good company will be glad to give you addresses of older jobs you can drive past.
It is also worth asking who will actually be on your roof. Some companies sell the job and hand it to a rotating set of subcontractors. Others send their own crews, trained the same way and accountable to the same foreman. Neither model is automatically wrong, but you should know which one you are buying.
Types of roofing projects completed
Experience also has to match your house. Architectural asphalt shingles, white cedar, and standing seam metal behave differently in wind and salt air, and each needs its own flashing details and fastening approach. A contractor who installs all three can talk honestly about trade-offs, and should be able to walk you through the features that matter most in roofing shingles for an exposed site.
If you own a shop, an inn, or a mixed-use building, look specifically for commercial roofing contractors with a record on similar structures. Low-slope sections, larger spans, and longer service expectations call for different planning, and choosing the right materials for a commercial roof replacement has a bigger effect on long-term cost than most owners expect.
Local conditions belong in this conversation too. Several towns on Martha's Vineyard and on Cape Cod have historic districts where material and color changes need approval before work starts, and an experienced roofer will raise that early instead of discovering it at the permit counter. You can usually tell how deep a company's knowledge goes by how it describes its roofing and exterior expertise on coastal projects: specific details about flashing, ventilation, and exposure are a better sign than general claims about quality.
Quality #2: Licensing and insurance
Importance of proper licensing
In Massachusetts, two credentials come up for roofing work. The Home Improvement Contractor registration covers contractors working on existing owner-occupied homes with one to four units, and the Construction Supervisor License requires passing an exam on the state building code. The state's home improvement contractor guidance for homeowners lays out what each one means, and it includes a detail many people on the Cape and the Islands miss: vacation and secondary properties are not covered by the home improvement contractor law, which means the state arbitration program and the guaranty fund may not be available to you if something goes wrong on a second home.
That makes your own checking more important, not less. Look up the contractor's registration and license status on the state's MA Contractor Hub, ask to see the registration card, and confirm that the contractor, not you, will pull the building permit. A roofer who asks the homeowner to apply for the permit is shifting responsibility in a way that should make you pause.
Types of insurance to look for
Two policies matter most. General liability insurance covers damage to your property, your landscaping, or a neighbor's car if something goes wrong during the job. Workers' compensation covers the crew if someone is hurt on your roof, and without it, an injury on your property can become your problem. Ask for certificates of insurance sent directly from the contractor's insurance agent, and check that the coverage dates run through the end of your project.
Insurance and safety go together. Roofing is work at height, often on steep pitches, and a company that takes fall protection seriously tends to take everything else seriously as well. Harnesses tied off to anchors, roof brackets, secured ladders, and OSHA training are signs of a crew that plans its work, which is part of why the people behind every roof we install matter as much as the materials they carry up the ladder.
Quality #3: Strong references and reviews
How to gather feedback from previous clients
Ask for three references from the last year and at least one from a project that is five or more years old. Recent clients can tell you how the job ran: whether the crew showed up when promised, how the property was protected, and how cleanup was handled. Older clients can tell you how the roof has actually performed, which is the part that matters most.
When you call, skip the general questions and ask about specifics. Was there rotted decking once the old roof came off, and how was it handled and billed? Did the schedule change, and were you told why? Has the contractor come back for anything since? On the Cape and the Islands, caretakers and property managers are an underused source, because they see many contractors' work over many winters and tend to have strong opinions about who returns calls.
Checking online reviews
Online reviews are useful when you read them with some care. Look at the dates, since a burst of reviews in a single month says less than a steady record over years. Read the negative reviews and, more importantly, the company's replies, because how a contractor handles a complaint in public is a good preview of how it will handle a problem on your roof. Local recognition counts as well; recognition at Best of the Vineyard 2025 reflects votes from neighbors who live with the work every winter.
It is also worth confirming any manufacturer credentials a company advertises. GAF and CertainTeed both list their certified installers, and the Better Business Bureau shows accreditation and complaint history. Millers Pro Roofing & Siding holds GAF, CertainTeed, and Shingle Master credentials and is BBB accredited, and we would encourage any homeowner to verify claims like these for every roof contractor they consider, ourselves included.
Quality #4: Detailed estimates and transparency
What to expect in an estimate
A serious estimate reads like a plan. It should state whether the old roof is being removed down to the deck, how damaged decking will be identified and priced, which underlayment will be used, where ice and water membrane goes, whether flashing will be replaced or reused, how the roof will be ventilated, and how debris will be removed. If you want a reference point, it helps to know what a complete roof replacement includes before you sit down with the first bid.
Massachusetts law requires home improvement contracts over $1,000 to be in writing, and it limits the deposit a registered contractor can collect to one third of the contract price, except when special-order materials are involved. A contract should also include the start date, the expected duration, the payment schedule, and the contractor's registration number. If a bid fits on half a page and leaves most of these blank, ask for the details before you compare it to anything else.
Understanding pricing structures
Roofing is usually priced by the square, which is 100 square feet of roof surface, with separate lines for tear-off, disposal, flashing, and specialty work. The figures that tell you the most are the unit prices for the unknowns: the cost per sheet of replacement decking, for example, or per foot of rotted fascia. A contractor who names those prices in advance is protecting you from a surprise change order once the old roof is off.
The lowest bid is often low because something is missing from it, such as reused flashing, a thinner underlayment, or no allowance for decking at all. Comparing bids line by line usually shows where the gap is. It also helps to think about cost per year of service rather than cost per job, since the factors that affect how long a roof lasts on the coast depend heavily on how it was installed.
Timing affects price and quality as well. Late fall is busy, and some crews start cutting corners as the days get shorter and colder. A transparent contractor will tell you plainly whether your project fits before winter or should wait, and will explain when cold-weather roofing and siding installation is safe for the specific materials on your house.
Quality #5: Warranty and after-sales service
Types of warranties offered
Most new roofs carry two kinds of coverage. The manufacturer's warranty covers defects in the materials themselves. The contractor's workmanship warranty covers the installation, which is where most roof problems actually begin. Certified installers can often register enhanced system warranties with manufacturers such as GAF and CertainTeed, which extend coverage when the full system of underlayment, ventilation, and accessories comes from the same product line.
Read the terms before you sign. Ask what voids the warranty, whether it transfers if you sell the house, and who you call if a leak appears in year six. On the Cape and the Islands, where homes change hands and roofs often outlast ownership, a transferable warranty supports the long-term value of a high-quality roof when it is time to sell.
Importance of customer support post-installation
The relationship with a roofer does not end when the dumpster leaves. A good contractor will offer to look at the roof after its first winter, when any installation issue usually shows itself, and will be reachable when you are off-island and a caretaker calls about a stain on the ceiling. Ask how service calls are handled and how quickly someone can get to your house during storm season, because regular roof and siding maintenance on coastal homes only works when someone actually answers the phone.
Longevity of the company matters here too. A twenty-year workmanship promise is only as good as the business behind it, so it is fair to ask how the company is organized, who runs it, and how long its crews have been together. Reading a little about the company behind the work before you sign is a small step that tells you who will still be around when the warranty is needed.
Conclusion: what to confirm before you sign
Summary of key points
Experience: years of work on coastal homes, older projects you can see, and familiarity with your roofing material.
Licensing and insurance: a current Home Improvement Contractor registration, a Construction Supervisor License, liability coverage, workers' compensation, and a contractor who pulls the permit.
References and reviews: recent and older clients, caretaker feedback, and a steady review record with thoughtful replies.
Estimates: a written scope that names decking, underlayment, flashing, ventilation, unit prices for unknowns, and a deposit of no more than one third.
Warranty and service: clear manufacturer and workmanship coverage, transfer terms, and a plan for service after the first winter.
Where to start when searching for roofing contractors near me
Searching for roofing contractors near me will produce plenty of names. The shortlist is what takes effort. Start with companies that work on Martha's Vineyard and on Cape Cod every season, ask each one the same questions, and give them the same scope to price. If a storm has already left marks on your roof, it is worth reading through the essential steps for storm damage roof repair first, so you can tell the difference between a quick patch and a repair that addresses the cause.
We would like to be one of the contractors you compare. If you are weighing a repair or a replacement before winter, our team can walk the roof with you, show you what is happening beneath the shingles, and give you a written estimate you can hold up against any other. You can schedule a roof assessment with Millers Pro Roofing & Siding whenever it suits you, and ask us every question on this list.
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