Roofing scams are nothing new. Dishonest contractors have long used storm damage, aggressive sales tactics, inflated estimates, and demands for large deposits to take advantage of homeowners.
However, recent investigations in the United States have revealed something potentially larger and more organized than the typical fly-by-night contractor.
Federal prosecutors, local police departments, and investigative journalists have documented cases involving Irish nationals or suspects described as having Irish or British accents who allegedly traveled between communities posing as roofers, masons, foundation specialists, and paving contractors.
Authorities have sometimes referred to people using these methods as “Traveling Conmen.” In some cases, investigators believe the suspects may be associated with international or transnational criminal groups.
The operations do not appear to follow the traditional storm-chasing roofing model. Instead, crews allegedly enter neighborhoods unsolicited, identify supposed defects in a roof or foundation, begin with a relatively small repair proposal, and then repeatedly increase the price after claiming to discover more serious damage.
Some homeowners have reportedly lost tens or hundreds of thousands of dollars.
Washington Investigation Raises New Concerns
A 2026 KING 5 investigation examined what authorities believe may be one of the largest roofing and home-repair scams uncovered in Washington State.
Investigators reportedly believe an organized group used roofing and construction businesses to target homeowners with claims that their houses required urgent repairs. The allegations included unnecessary or overpriced roof, chimney, masonry, paving, and foundation work.
Although the full scope of the Washington investigation is still unfolding, the reported methods resemble those described in earlier federal prosecutions involving Irish nationals who traveled between states.
One of the clearest examples came from a Shoreline, Washington, homeowner who lost approximately $435,000.
According to the U.S. Department of Justice, brothers Patrick and Matthew McDonagh approached the older homeowner in January 2024 and said they were working nearby. They claimed they had noticed a hole in his roof and offered to repair it and remove moss.
Federal prosecutors said there was no hole in the roof.
Over several days, the men allegedly persuaded the homeowner to write checks for $15,000, $20,000, and $26,000. They later claimed the foundation was cracked and required a so-called “titanium tie rod system.”
Prosecutors said the foundation was not failing. Nevertheless, trenches were dug and concrete was poured to create the appearance that substantial work was being performed.
The homeowner was then pressured to make additional payments, including a $200,000 wire transfer that was supposedly needed for building materials. In total, prosecutors said approximately $435,000 was taken from the victim.
The two men pleaded guilty in September 2024 to conspiracy to commit wire fraud.
Investigation Connected Washington Suspects to Other States
The Washington prosecution did not involve only one homeowner.
The FBI connected the McDonagh brothers to contractor-fraud complaints in Washington, Oregon, and Illinois.
In Oregon, prosecutors said Patrick McDonagh falsely represented himself as being affiliated with a legitimate local construction company. Three homeowners reportedly paid as much as $29,000 for foundation work that was not completed as promised.
In Illinois, Matthew McDonagh allegedly agreed to repave a driveway and rebuild a retaining wall for $99,000. The homeowner paid $75,000, but prosecutors said the work was poorly performed, caused damage to the house, and was worth significantly less than the amount paid.
The restitution agreement referenced approximately:
- $235,000 for the Shoreline homeowner
- Nearly $50,000 for three Oregon victims
- $75,000 for an Illinois victim
- More than $673,000 for a Bellevue, Washington, victim
Those figures illustrate how quickly a seemingly small roof or foundation inspection can escalate into a six-figure loss.
Rhode Island and Massachusetts Scheme Cost Homeowners More Than $1 Million
A separate federal case centered on John O’Brien, an Irish national who operated in Rhode Island and Massachusetts while presenting himself as a qualified contractor.
In April 2026, O’Brien was sentenced to 56 months in federal prison after pleading guilty to wire fraud. He is expected to be deported after completing his sentence.
Federal prosecutors said O’Brien and his associates convinced homeowners to pay for repairs that were unnecessary, exaggerated, or never completed. The businesses used in the alleged operation included Traditional Masonry & Construction.
The investigation began after an 83-year-old Warwick, Rhode Island, homeowner reported being defrauded.
O’Brien allegedly told the homeowner that he had noticed cracks in the foundation while working nearby. He initially collected $9,500, then claimed additional damage had been discovered and sought another $80,000.
A home inspector working for federal investigators later found no evidence that the extensive foundation repairs were needed.
Authorities identified additional homeowners who described similar encounters: an unsolicited offer for a small repair, followed by the supposed discovery of major structural problems and demands for substantially more money.
The U.S. Attorney’s Office said the scheme took more than $1 million from homeowners. Federal prosecutors described the conduct as part of a broader pattern involving people known as Traveling Conmen who cross state lines to find new victims.
Shared Heritage Was Allegedly Used to Gain Trust
One troubling detail from the Rhode Island case involved the way O’Brien allegedly built rapport with an elderly veteran.
Homeland Security Investigations said O’Brien referenced his Irish background to establish trust with the homeowner, who shared Irish heritage. According to authorities, that connection was then used to persuade the victim to pay tens of thousands of dollars for unnecessary repairs.
This illustrates an important feature of confidence fraud: scammers do not always rely solely on low prices or fear. They may look for personal connections, shared backgrounds, religious affiliations, military service, neighborhood relationships, or other details that help them appear trustworthy.
California Police Warn of Aggressive Contractor Crews
In March 2026, Berkeley police warned Bay Area residents about what they described as a sophisticated and aggressive contractor scam.
Police received reports involving groups of men described as having Irish or British accents. The suspects allegedly traveled in white Ford F-150 pickups, wore high-visibility clothing, and posed as contractors already working in the neighborhood.
The crews reportedly knocked on doors without appointments and claimed to have noticed urgent roof or chimney defects.
Once allowed onto a property, some suspects allegedly caused damage themselves, including removing structural materials or cutting holes, before demanding money to repair the newly created problem.
Reported losses ranged from $10,000 to $450,000.
In one example, an 89-year-old woman was reportedly told that a raccoon was on her roof and could be removed for $60. After gaining access, the men allegedly claimed the roof required $1,600 in repairs. She later learned they were suspected of removing shingles and creating a hole themselves.
Berkeley police said the suspects may have been connected to international groups operating under fictitious business names, although authorities had not publicly confirmed that all of the cases were connected.
Denver Case Included Racketeering Allegations
The California police warning referenced an earlier Colorado prosecution in which Irish nationals were accused of participating in a roofing-related fraud operation.
According to authorities cited in the California reporting, two suspects were arrested in New York City before they could leave the United States and were returned to Denver to face theft and racketeering allegations.
Racketeering charges are significant because they may suggest that prosecutors believe the alleged offenses were not isolated acts committed by one dishonest salesperson. Such charges can be used when authorities believe multiple people or businesses participated in a coordinated pattern of criminal conduct.
However, an arrest or criminal charge is not a conviction. Defendants are presumed innocent unless proven guilty.
Similar Roofing Warnings Issued in Canada
Canadian authorities have also warned homeowners about door-to-door roofing schemes that closely resemble the methods reported in the United States.
In May 2026, the Niagara Regional Police Service in Ontario warned residents about companies that appeared legitimate and went door to door offering supposedly necessary or emergency roof repairs.
Police said the contractor would provide an initial price and collect a down payment. After beginning work or removing part of the roof, the company would claim the project was far larger than expected and demand an astronomically higher payment.
At that point, homeowners could feel trapped because their roof had already been opened or covered with a tarp.
Niagara police said similar methods had previously been associated with driveway-repair scams. Those operations used scare tactics, incomplete work, substandard materials, and claims that additional emergency work was required.
The Canadian police warning did not publicly identify the reported roofing crews as Irish. It is therefore important not to automatically connect every Canadian door-to-door roofing scam to the U.S. cases.
The significance is the similarity in the sales method: unsolicited contact, a small initial price, work beginning immediately, and a sudden escalation in the alleged damage and cost.
Why Roof and Foundation Scams Can Be So Effective
Roofing and structural repairs are particularly useful to scammers because most homeowners cannot easily verify the claims.
A homeowner may not be physically able to climb onto the roof. Even when photos are provided, the homeowner may not know whether the image shows their property, whether the condition is serious, or whether the damage was already present.
Foundation and masonry claims can be equally intimidating. Words such as “structural failure,” “collapsed foundation,” “dangerous chimney,” or “immediate water damage” create fear and a sense that waiting could make the problem worse.
The dishonest contractor may then begin tearing off shingles, digging trenches, removing masonry, or covering the roof with a tarp. Once the home is partially dismantled, the homeowner may believe there is no practical choice but to continue paying.
Common Pattern Reported Across Multiple Cases
Although every investigation is different, the reported cases share several characteristics.
1. Unsolicited contact
The crew knocks on the door and says it is already working nearby.
2. A visible or urgent problem is claimed
The homeowner is told there is a hole, loose flashing, chimney damage, moss, cracked masonry, or a failing foundation.
3. The first price appears manageable
The initial offer may involve a small inspection, minor repair, moss removal, animal removal, or inexpensive patch.
4. More damage is supposedly discovered
Once access is obtained, the contractor claims the defect is much more serious than originally believed.
5. The homeowner is pressured to act immediately
The crew may say the house is unsafe, rain is coming, the roof could collapse, or materials and workers are already available.
6. The price rises repeatedly
A job that began as a small repair can grow to tens or hundreds of thousands of dollars.
7. Payment methods become unusual
Victims may be told to use checks, wire transfers, cash, cashier’s checks, or payments made to third parties.
8. Work is unnecessary, incomplete, or damaging
In some reported cases, crews allegedly performed superficial work to create the appearance of progress. In others, authorities say the suspects intentionally damaged the property.
9. Individuals with Irish accents
One of the most frequently reported characteristics across many of these investigations is that the suspects were identified by law enforcement or news organizations as Irish nationals, or were described by victims as speaking with Irish accents. Federal prosecutions in Washington, Rhode Island, and Massachusetts specifically identified several defendants as Irish nationals, while police in California warned residents about contractor crews described as having Irish or British accents. This leads some to believe some of the scams are initiated through a crime network.
Not Every Door-to-Door Roofer (or Irish national) Is a Scammer
Door-to-door roofing sales are used by many legitimate contractors, particularly after hail, wind, and severe storms.
A roofer knocking on a door is not, by itself, evidence of fraud. Neither is an Irish accent, a foreign nationality, a white pickup truck, or a crew working temporarily in another state.
The warning signs involve the total pattern:
- False claims of urgent damage
- Refusal to allow time for a second opinion
- Rapidly escalating prices
- Pressure placed on elderly or vulnerable homeowners
- Misrepresentation of licenses or company affiliations
- Demands for large or unusual payments
- Property damage caused after access is granted
- Work performed without a detailed written agreement
The distinction matters. Thousands of reputable Irish, Irish-American, British, immigrant, and traveling tradespeople operate honest construction businesses.
The cases described here concern specific defendants, suspects, and alleged criminal organizations, not an ethnic group or the roofing industry as a whole.
How Legitimate Roofers Can Separate Themselves From Scammers
These stories can damage trust in every roofing contractor, particularly companies that use canvassing or neighborhood marketing.
Professional roofers can help distinguish themselves by providing:
- A verifiable local or established business address
- State contractor registration or licensing information
- Proof of liability insurance and workers’ compensation coverage
- A detailed written scope of work
- Photos or video clearly tied to the customer’s property
- Itemized pricing
- A reasonable payment schedule
- References from nearby customers
- Time for the homeowner to seek a second opinion
- Written authorization before performing additional work
A legitimate contractor should also clearly explain when a condition is urgent and when it can safely wait.
Homeowners should never be made to believe that obtaining another estimate will automatically result in a collapsed roof, failed foundation, or destroyed home.
Questions Homeowners Should Ask Before Authorizing Work
Before signing a roofing or home-repair contract, homeowners should ask:
- What is your full legal business name?
- Where is the business registered?
- Are you licensed or registered in this state or province?
- Can I see proof of insurance?
- Can you provide recent local references?
- Can you show me exactly where the damage is located?
- Can another contractor inspect it before work begins?
- Will all additional work require written authorization?
- Who will receive the payment?
- Why must the work begin today?
A contractor who becomes angry, threatening, evasive, or increasingly aggressive when asked these questions should not be allowed to begin work.
What to Do When a Contractor Has Already Opened the Roof
One of the most effective pressure tactics is beginning demolition and then claiming additional damage.
Even at that point, homeowners still have options.
They can instruct the contractor to stop, document the current condition with photos and video, contact local police if they feel threatened, call another roofing contractor for an emergency inspection, and speak with the appropriate contractor-licensing or consumer-protection agency.
Niagara Regional Police specifically reminded homeowners that they may pause the work and obtain another opinion, even when a contractor insists that emergency repairs are needed.
The priority should be making the property temporarily watertight without authorizing thousands of dollars in additional work under pressure.
Protecting Elderly Homeowners
Many of the reported victims were older adults. Families should discuss contractor fraud before someone appears at the door.
Helpful precautions may include:
- Asking elderly relatives not to approve unsolicited work without calling a family member
- Installing a doorbell camera
- Keeping the phone number of a trusted local contractor available
- Reviewing checking accounts for unusual large payments
- Encouraging neighbors to report suspicious crews
- Establishing a rule that no wire transfers will be made for door-to-door repairs
Embarrassment often prevents victims from reporting fraud. Families should make it clear that sophisticated scammers are skilled at manipulating people and that being deceived is not a sign of stupidity or carelessness.
Prompt reporting may also help banks or law enforcement recover transferred funds.
A North American Problem Requiring Cooperation
The cases in Washington, Oregon, Illinois, Rhode Island, Massachusetts, Colorado, California, and Ontario show why traveling contractor fraud can be difficult to stop.
Crews may use temporary business names, rented or recently purchased vehicles, out-of-state license plates, multiple phone numbers, and short-term addresses. By the time complaints accumulate in one location, the people involved may have moved to another state or crossed an international border.
Local police may initially see only a single disputed construction job. It can take cooperation among local detectives, state authorities, federal agencies, border officials, banks, prosecutors, and victims to identify a larger pattern.
The federal Washington case demonstrates the value of that cooperation. Investigators connected complaints across several states, while quick action by local authorities helped recover some of the money transferred by the Shoreline homeowner.
