How Much Is Insurance on a $5 Million Home in New Hampshire?

High-valueNH

Reviewed by Jon Merwin, Founder & CEO, Portsmouth Atlantic Insurance · Published October 4, 2026

How much is insurance on a $5 million home in New Hampshire? At this level, the premium reflects more than rebuild cost. It reflects the whole estate: the main house and outbuildings, how close it sits to the ocean or a lake, the people who work there, and any other homes the family owns. We don’t publish an average premium, because a single number would mislead more people than it helps. What we can do is explain what drives the cost and what to check before you buy.

This guide covers the exposures that set $5 million-plus properties apart: waterfront and flood, estate features, household staff and multiple homes. For valuables and umbrella limits, see our $4 million home guide.

What drives the cost to insure a $5 million estate?

• Rebuild cost of the main house, guest houses, barns, garages and pool houses.
• Waterfront exposure on the Seacoast or a lake: flood zone, wind, ice and docks.
• Estate features: pools, gates, generators, outdoor kitchens and long private drives.
• People: household staff, frequent guests and the number of drivers.
• Other properties: second homes, seasonal homes and rentals in New Hampshire or elsewhere.

How do you insure a waterfront estate in New Hampshire?

New Hampshire’s highest-value homes cluster on the water: the Seacoast in Rye, New Castle and along Little Harbor and Great Bay, and the big lakes such as Winnipesaukee, Squam and Sunapee. Waterfront brings its own questions:

• Docks and boathouses. Check whether they are covered as other structures, what perils apply and whether ice damage is excluded.
• Seawalls and retaining walls. These are often limited or excluded on homeowners policies. Ask how yours treats them.
• Boats and watercraft. Homeowners policies typically give boats very limited coverage. A separate boat insurance policy is usually the right fit, and it should sit under your umbrella.
• Wind and winter. Nor’easters on the coast and heavy snow and ice inland both matter. Ask about wind deductibles and coverage for frozen pipes in homes that sit empty for part of the year.

Larger boats are usually better served by a yacht policy than by a homeowners or small-boat form. Chubb’s Masterpiece Yacht coverage, for example, settles a total loss on an agreed value, can repair partial losses with original manufacturer parts on its broader form, and adds marine liability features such as wreck removal, environmental damage and coverage for paid crew. Terms depend on the vessel and the form. Availability varies by state and policy.

Does a $5 million home need excess flood insurance?

Flood is excluded from homeowners policies. FloodSmart.gov states that NFIP building policies cover up to $250,000 and contents policies up to $100,000. For a $5 million waterfront home, that is a small part of the value. Options include an excess flood policy that sits above the NFIP policy, or a private flood policy with higher limits. NFIP policies usually take effect 30 days after purchase, so don’t wait for a storm forecast. As of October 3, 2026, the NFIP is authorized through December 11, 2026; check FEMA’s reauthorization page for the current status.

Check the property on FEMA’s Flood Map Service Center, and read our page on flood insurance for the New Hampshire Seacoast.

What insurance do you need for household staff?

Many estates rely on housekeepers, nannies, caretakers, groundskeepers or a property manager. Triple-I notes that if you hire home workers on a permanent, regularly scheduled basis, you should consider workers’ compensation insurance, and that if you are required by law to buy it and don’t, your homeowners or other policies won’t pay fines, court awards or penalties. Requirements vary by state, so confirm what applies to your household.

• Workers’ compensation. Covers medical care and lost wages if a household employee is hurt on the job. Ask us whether your staff should be covered.
• Employment practices liability (EPLI). Household employers can face claims such as wrongful termination, discrimination or harassment. Some high-value carriers offer employment practices coverage for household staff, either as an endorsement or with the umbrella. Ask what yours includes.
• Staff who drive. List any employee who regularly drives a family car on the auto policy.
• Agency staff. If you hire through an agency, Triple-I suggests asking for a certificate of insurance showing the firm carries workers’ compensation.

How do you insure multiple homes?

Families with a $5 million primary home often own a Seacoast house, a lake house, a ski home or a place in another state. Coordinating them matters:

• One program where possible. Insuring the homes with the same high-value carrier can simplify claims, limits and renewals.
• One umbrella over everything. Every residence, vehicle and boat should be listed on the umbrella so nothing falls outside it.
• Seasonal occupancy. Tell us which homes sit empty for part of the year. Vacancy and unoccupancy terms, winterization and caretaker checks all matter.
• Rentals. Renting a home, even occasionally, changes the coverage it needs.
• Homes in other states. Portsmouth Atlantic Insurance is licensed in 10 states, so we can often help with homes outside New Hampshire too.

See our guide to insurance for a second home for more.

How do you protect the systems that run an estate?

An estate runs on equipment: generators and transfer switches, heating and cooling, well pumps, elevators, pool equipment and home automation. A homeowners policy covers damage from perils such as fire, but it generally doesn’t cover a sudden mechanical or electrical breakdown. Equipment breakdown coverage, which Chubb offers as an add-on to its Masterpiece policies, is built for that gap, and it can apply to every structure on the property, including guest houses and barns. It doesn’t cover wear and tear. Availability varies by state and policy.

Long underground runs of water, sewer and power lines to outbuildings are another gap. Cincinnati offers service line coverage as an endorsement on its higher-tier homeowner policies.

Which carriers insure $5 million homes in New Hampshire?

As an independent agency comparing 30+ carriers, the carriers we work with that write homes up to $5 million are Cincinnati, Chubb, Openly and National General. Appetite still varies by home and location, so we match the estate, the flood exposure and the liability program to the carriers whose appetite fits.

Frequently asked questions

How much is homeowners insurance on a $5 million home?

There is no reliable single figure. The premium reflects the rebuild cost of every building, waterfront and flood exposure, household staff, other homes and the coverage you choose. Comparing carriers for the whole estate is the way to get a real number.

Does a waterfront home need excess flood insurance?

Often, yes. NFIP building coverage is capped at $250,000 and contents at $100,000. Owners of higher-value waterfront homes usually add an excess flood policy above the NFIP policy, or buy a private flood policy with higher limits.

Are docks and seawalls covered by homeowners insurance?

It depends on the policy. Docks and boathouses may be covered as other structures with limits and exclusions, and seawalls and retaining walls are often limited or excluded. Ask your agent how your policy treats each one.

Do I need workers’ compensation for household staff?

If you employ household workers on a regular, scheduled basis, workers’ compensation is worth considering, and some states require it. Rules vary, so confirm what applies to your household with your agent.

What is employment practices liability for household employers?

It covers claims from household employees such as wrongful termination, discrimination or harassment. Some high-value carriers offer it for household staff as an endorsement or with the umbrella.

Can all my homes be insured on one program?

Often they can. Coordinating multiple homes with one high-value carrier, and listing every home, vehicle and boat on one umbrella, helps avoid gaps. We can help with homes in the states where we are licensed.

Sources

• FloodSmart.gov (NFIP), "Buy a Flood Insurance Policy"
• FEMA, "Congressional Reauthorization for the National Flood Insurance Program"
• FEMA, "FEMA Flood Map Service Center"
• Insurance Information Institute, "Do I need to insure my household help?"
• Insurance Information Institute, "What is an umbrella liability policy?"
• NAIC, "Homeowners Insurance" consumer guide