High-Value Home Insurance in Massachusetts

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By Jon Merwin, Founder and CEO, Licensed Insurance Advisor

A Massachusetts high-value home is rarely just an expensive house. It may be a 1790s farmhouse in Concord inside a local historic district, a new build in Weston sitting on a private well, a shingle-style house above the harbor in Marblehead, or a Wellesley Colonial that has doubled in size through additions. Each one raises questions a standard policy was not written to answer, and the state’s building codes add a few of their own.

Portsmouth Atlantic Insurance is a family-owned independent agency founded in 2005. We write Massachusetts homes by phone, email and online from our Portsmouth, New Hampshire office, compare 40+ carriers, and quote the high-value companies side by side. Reach us at (603) 431-4020 or by email at insure@portsmouthatlanticins.com.

Key takeaways

  • Cincinnati and Chubb both write homes at any dwelling limit, so we quote both; Hanover, Openly, National General, Andover, Concord Group and Vermont Mutual round out our Massachusetts high-value options.
  • Sixty Massachusetts municipalities, including Weston, Wellesley, Lincoln, Concord, Newton and Hingham, have adopted the Specialized energy code, which pushes new homes over 4,000 square feet toward all-electric or zero energy design.
  • Ten communities may require all-electric new construction and major renovations under a state demonstration program, which matters when a home has to be rebuilt.
  • Local historic district commissions under Chapter 40C review exterior work, and some towns exempt a like-for-like rebuild after a fire or storm if it starts within a year.
  • Massachusetts holds dog owners liable for bites and property damage under chapter 140, section 155, which is one reason high-value clients carry an umbrella.

Clients have left 1,000+ Google reviews and over 2,000 testimonials for PAI, and we are New Hampshire’s highest-rated agency on Google.

Where Massachusetts high-value homes are

The Census Bureau’s 2020-2024 American Community Survey puts the median owner-occupied home value in Weston at about three times the statewide median, and Wellesley, Dover, Cohasset, Newton, Brookline, Concord, Lincoln, Lexington, Edgartown and Hingham all come in at more than twice the state figure. Median income in Weston, Wellesley, Dover, Sherborn and Carlisle is at the top of the survey’s reporting range. We have written a guide for each of these towns:

Shoreline homes bring wind deductibles and flood into the picture; those are covered on our coastal Massachusetts high-value home insurance page. This page focuses on what applies statewide. Not a high-value home? See coastal home insurance in Massachusetts.

Carriers we compare for Massachusetts high-value homes

The high-value companies we work with in Massachusetts are Chubb, Cincinnati, Hanover, Openly, National General, Andover, Concord Group and Vermont Mutual. Cincinnati and Chubb both write homes at any dwelling limit, so we quote both. In Massachusetts, we place Chubb on high-value homes, and Openly is appointed with us here. Our Chubb insurance review, Cincinnati Insurance review and Openly review explain how each company approaches coverage.

High-value carriers usually send an appraiser to measure the house and note finishes before they set the dwelling limit, and for the largest homes they often expect water-leak detection and central station alarms. If no company in the regular market will write a property, the Division of Insurance points owners to the Massachusetts Property Insurance Underwriting Association, the state’s FAIR Plan. FAIR Plan coverage is narrower, so we look at every regular-market option first.

Rebuilding under the Massachusetts energy codes

A high-value policy is only as good as its rebuild math, and in Massachusetts the code your town has adopted can change what a rebuilt house must include. According to the state’s energy code adoption list, as of June 4, 2026, 242 municipalities had adopted the Stretch code and 60 had adopted the Specialized code. The Specialized list includes Weston, Wellesley, Lincoln, Concord, Carlisle, Sherborn, Needham, Sudbury, Wayland, Lexington, Newton, Belmont, Winchester, Brookline, Hopkinton, Milton, Sharon, Hingham and Andover.

What the Specialized code asks of a large new home

The Department of Energy Resources’ Stretch and Specialized code FAQ sets out three pathways for new one- and two-family homes: zero energy, all-electric and mixed fuel. New homes over 4,000 square feet must use the zero energy or all-electric pathway. A home that size can still have a gas range, but only if it reaches a HERS Index of zero, or Phius ZERO, with on-site renewable energy. A mixed-fuel home of 4,000 square feet or less needs a HERS Index of 42, pre-wiring for future electric equipment and at least 4 kilowatts of on-site solar unless the site is shaded.

Additions and major renovations

Under the Stretch code, which also applies in Specialized towns for work on existing homes, an addition of more than 1,000 square feet of conditioned space, or one that more than doubles the house, must follow the HERS pathway with a blower door test. So must a Level 3 alteration, one that renovates and reconfigures most of the home, when it exceeds the same size thresholds. If a large part of the house has to be rebuilt after a claim, ask the building department early which path applies.

The ten all-electric demonstration communities

The 2022 climate law (Chapter 179 of the Acts of 2022, section 84) created a demonstration program that lets up to ten communities require new buildings and major renovations to run without fossil fuels. The participants, as listed in MAPC’s 2026 building energy code training and on DOER’s program page, are Acton, Aquinnah, Arlington, Brookline, Cambridge, Concord, Lexington, Lincoln, Newton and Northampton. Rules differ by community. Newton’s inspectional services department, for example, says that as of January 1, 2026, major renovations and additions over 1,000 square feet that trigger its ordinance must be fully all-electric, with no option to keep gas cooking.

What this means for your policy

  • Size the dwelling limit for the house you would be permitted to build today, including heat pumps, upgraded insulation and, where required, solar panels, not the house that stands there now.
  • Ask how your policy handles building code upgrades. Ordinance or law coverage pays the added cost of meeting current codes, and the amount available differs from form to form.
  • Solar arrays, battery storage and backup generators should be listed with the carrier so they are included in the dwelling limit.
  • Keep plans, permits and photos of the finished home stored away from the house; they speed up a rebuild and help an adjuster value custom work.

Historic districts and demolition review

Many of the towns above have local historic districts created under Chapter 40C of the General Laws. Inside a district, exterior work that the commission reviews cannot start until it issues a certificate of appropriateness, non-applicability or hardship. Under section 8 of Chapter 40C, a town may exempt the reconstruction of a building damaged or destroyed by fire, storm or other disaster if the new exterior is substantially similar and the work begins within one year and continues with due diligence. Whether your town has adopted that exemption is in its historic district bylaw.

Separately, many Massachusetts towns have demolition delay bylaws that can pause the removal of an older building. Both rules can add time and specialty materials to a rebuild: slate instead of asphalt, true divided-light wood windows, hand-split cedar or lime mortar. A high-value policy with extended replacement cost and enough additional living expense coverage for a longer rebuild is worth asking about. Our Concord, Newton and Belmont pages go into each town’s process.

Liability: Massachusetts dog law and umbrella limits

Massachusetts General Laws chapter 140, section 155 makes the owner or keeper of a dog liable for damage the dog does to a person or property. The exceptions are narrow: the injured person was trespassing or committing another wrong, or was teasing, tormenting or abusing the dog. For a child under seven, the law presumes none of those exceptions apply and puts the burden on the dog owner. A homeowners policy carries the first layer of liability coverage, and a personal umbrella adds limits above the home, auto and boat. Some carriers ask about breeds and bite history, so mention every dog.

Other common reasons Massachusetts clients add an umbrella include teenage drivers, a pool or tennis court, staff who work in the home, board seats with nonprofits and a lake or harbor boat. For how an umbrella sits above home and auto, see our umbrella insurance page.

Valuables, collector cars and second homes

  • Jewelry, art, silver and wine. A homeowners policy limits theft of jewelry and some other items. Scheduling them with a recent appraisal gives each piece its own limit, and many high-value carriers cover mysterious disappearance on scheduled items.
  • Collector cars. An antique registered with Massachusetts plates or a car kept in a climate-controlled garage belongs on an agreed value collector policy. See collector car insurance in Massachusetts.
  • Second homes. A Cape house, Vineyard cottage or ski place in another state is easier to manage with the same agent. Start with Massachusetts second home and vacation home insurance.
  • Flood. No homeowners policy covers flood, and river towns such as Wayland, Concord and Medfield have floodplains along the Sudbury, Concord and Charles. Our flood insurance page covers the options.

For a home that does not need high-value coverage, our Massachusetts homeowners insurance page is the place to start.

Request a Massachusetts high-value home quote

Send us the address and a few details about the house, and we will shop the carriers that fit. We don’t charge any fees, and when a claim happens we stay with it until it is settled. Request a quote. There’s no obligation to buy. Fill in the form below, start from our quotes page, or phone (603) 431-4020 between 9 and 5 Monday to Thursday or 8 and 4 on Friday (Eastern). You can read what other clients say on our client feedback page, or ask for a policy review of the coverage you have now.

Frequently asked questions

Which carriers write high-value homes in Massachusetts?

For Massachusetts high-value homes we compare Chubb, Cincinnati, Hanover, Openly, National General, Andover, Concord Group and Vermont Mutual. Cincinnati and Chubb both write homes at any dwelling limit, so we quote both, and in Massachusetts we place Chubb on high-value homes. Openly is appointed with us in Massachusetts. Which carrier fits depends on the home, its location and its claims history.

When does a Massachusetts home need a high-value policy?

Look at the cost to rebuild, not the assessed or market value. Homes with custom millwork, slate or copper roofs, large additions, guest houses, pools and extensive landscaping often cost more to rebuild than a standard homeowners form is designed for. High-value forms usually add broader water coverage, extended replacement cost options, higher liability limits and a carrier-arranged appraisal of the house.

If my home burns down, do I have to rebuild to the Specialized energy code?

A house rebuilt after a total loss is generally permitted as new construction, so the code your town has adopted applies. In a Specialized code town, a new home over 4,000 square feet must follow the all-electric or zero energy pathway. Confirm the details with your building department, and ask us how your policy handles building code upgrades so the dwelling limit and any ordinance or law coverage are sized for the house you would actually be allowed to build.

Which Massachusetts towns can require all-electric new construction?

Under the state’s demonstration program created by the 2022 climate law, ten communities may require new buildings and major renovations to run without fossil fuels: Acton, Aquinnah, Arlington, Brookline, Cambridge, Concord, Lexington, Lincoln, Newton and Northampton. Each community writes its own bylaw or ordinance, so the details and effective dates differ.

Am I responsible if my dog bites someone in Massachusetts?

Massachusetts General Laws chapter 140, section 155 makes a dog’s owner or keeper liable for damage the dog does to a person or property, unless the injured person was trespassing, committing another wrong, or teasing or abusing the dog. If the child hurt is under seven, the law presumes the child was not doing any of those things. Homeowners liability and a personal umbrella are where that exposure is insured, so tell us about your dogs when we quote.

Do you have an office in Massachusetts?

No. We serve Massachusetts clients by phone, email and online from our office in Portsmouth, New Hampshire, and Massachusetts is one of the 10 states where we are licensed. Call (603) 431-4020 or email insure@portsmouthatlanticins.com.

What do you need to quote a high-value Massachusetts home?

Send the address, year built, square footage, roof and heating details, any recent renovations, a list of jewelry, art or other valuables you want scheduled, the cars and drivers in the family, and your current declarations pages. Request a quote. There’s no obligation to buy. Send it by email to insure@portsmouthatlanticins.com, through the form here, or by phone at (603) 431-4020.

Sources

This page is a general guide for Massachusetts homeowners, not legal or building code advice. What a claim pays depends on the wording of your policy, its endorsements and the carrier’s underwriting decisions. Codes and local bylaws change, so confirm current requirements with your building department and historic district commission. To talk through your own home, call (603) 431-4020.

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