High-Value and Lake Home Insurance in Tamworth and Madison, NH

By Jonathan Merwin, Founder and CEO, Licensed Insurance Advisor. Updated October 30, 2026.

Who insures lake and high-value homes in Tamworth and Madison, New Hampshire? Portsmouth Atlantic Insurance, an independent Portsmouth agency with 40+ carriers, places homes on Chocorua Lake, White Lake, Silver Lake and in the Eidelweiss district. These are mostly wooded, rural lots with wells, septic and volunteer fire service, and many of the houses sit empty for weeks at a time, so the right policy comes down to fire access, winter checks and flood exposure along the rivers.

Two towns at the foot of the Sandwich Range

Tamworth runs from the Ossipee line north into the White Mountain National Forest, with Mount Chocorua standing over its northern villages. Chocorua village, Wonalancet, South Tamworth and Whittier each have their own cluster of houses, and the lakes and rivers that drain the range feed the Bearcamp River on its way to Ossipee Lake. Madison sits just to the east along Route 113 and Route 41. Its three main areas, as the town describes them, are East Madison, Silver Lake and the Eidelweiss district, with Purity Lake and a string of smaller ponds tucked in the woods.

The housing is a mix you will not find on the Seacoast. There are nineteenth-century farmhouses and summer places that predate the automobile, rustic camps that families have kept for decades, ski-season chalets that serve the Conway and Jackson slopes, and newer timber-frame homes set far back on large lots. A single carrier is rarely right for all of them, which is why we start by asking how the house is built, how it is heated and who is there in January.

Chocorua Lake and its covenants

Chocorua Lake is one of the most photographed views in New England, and the reason it still looks that way is a land agreement, not a zoning map. According to the Chocorua Lake Conservancy, owners around the lake placed nearly all of the land under covenants between 1968 and 1973. The covenants limit the basin to residential use, set a minimum lot of eight acres, control building height and setbacks and bar clear-cutting within 150 feet of the water. In 2005 the Chocorua Lake Basin Historic District joined the National Register, which covers about 6,000 acres and 155 historic buildings.

For a homeowner, those protections are a big part of what the house is worth, and they also shape any rebuild. If a fire or a falling tree takes out part of an older home, the repair has to respect the covenant terms, New Hampshire’s shoreland protection rules within 250 feet of the water and today’s building code. That can mean more design time, specialty materials and a slower permit path than a typical repair. We look at how each carrier values older and custom homes and how high the ordinance or law limit runs, so the limit reflects the real cost of putting a historic house back.

The Conservancy also reports that about 40% of the shoreline is open to the public, and that it has been restoring the eastern shore since 2024 after larger rain events eroded the bank.

Silver Lake, Purity Lake and the Eidelweiss district

Madison’s 2024 hazard plan is unusually frank about the Eidelweiss district. It describes roughly 450 closely clustered wood-frame homes on half-acre to three-quarter-acre lots, built mostly in the 1960s and 1970s on steep terrain with minimal defensible space. More than a quarter are lived in year-round, and about 75% are used most summer and winter weekends. The plan rates the wildfire risk there as exceptionally high. Water for firefighting comes from three ponds, a 60,000-gallon storage tank and a 10,000-gallon tank at the summit, and the plan estimates that a fire could take 20 to 30 minutes to reach the top of Oak Hill.

Those details are exactly what an underwriter weighs. A chalet with an older wood-shake roof, decks over dry brush and a long climb for the engine will see fewer offers than a similar house with a newer roof, cleared ground near the walls and a driveway a tanker can turn around in. We send carriers photos that show those improvements, because they often decide whether a file is accepted.

Silver Lake has a different feel, with larger shorefront lots and a lake association that tracks water quality. The Silver Lake Association of Madison runs a lake host program and a watershed management plan, and the town owns the Silver Lake Dam, which the hazard plan rates as low hazard. Purity Lake Dam is rated high hazard and the Pea Porridge Pond dam in Eidelweiss significant hazard. Those ratings describe what a failure could do downstream rather than the dam’s condition, but they are worth knowing if your house sits below one.

Fire seasons in the pine barrens

This corner of Carroll County has burned before. Tamworth’s master plan notes that a 1907 fire burned about 10,000 acres along the Swift River and that the pine barrens near the Chocorua Ski and Beach area remain prone to fire. In Madison, the hazard plan names the pine barrens neighborhoods of Carved in Bark, Moores Pond and Allegro Pines, and recalls a 1947 fire and a 1957 fire that burned about 2,500 acres in roughly ten hours.

Fire service in both towns leans on volunteers. Tamworth’s 2008 plan describes a department covering 64 square miles from four stations, Central, Chocorua on Route 16, South Tamworth on Route 25 and Wonalancet, with a full-time chief and 33 volunteers serving about 2,500 year-round residents and nearly as many seasonal ones. Madison’s 2024 plan lists a part-time chief and 14 volunteer firefighters working out of one station, with mutual aid from the Ossipee Valley and Mount Washington Valley systems. Madison also requires dry hydrants, cisterns or other fire protection when it approves new development.

Every insurer scores an address by its road miles to a station and how close a usable water source is. A house a short drive from a station with a dry hydrant nearby usually draws more choices than one at the end of a long private road. Monitored smoke and heat alarms, a clear driveway in winter and a pond or cistern close to the house are worth mentioning on any application.

Rivers, ice jams and flood maps

Flood risk here is about rivers, not the ocean. Tamworth’s natural hazards chapter ranks flooding as a high vulnerability and says the Bearcamp, Chocorua and Swift rivers flood seasonally. It also cites Army Corps cold-regions records of seven ice jams on the Bearcamp and Cold Brook between 1966 and 2000, and counts twelve active dams in town. In Madison, the hazard plan notes repeated road flooding and erosion in Eidelweiss and two roads made impassable there in June 2011.

Both towns take part in the National Flood Insurance Program, and their current maps for Carroll County are dated March 19, 2013, according to Tamworth’s floodplain ordinance and the Madison plan. The Madison plan counts just seven federal flood policies in town, every one on a single-family house, and no claims paid. That low number is common in rural towns, and it does not mean the risk is zero. Rising water falls outside every standard home form, so a house close to a river, brook or low shore should be checked on FEMA’s flood map site before you decide. We can quote the federal program through Selective, or private flood from Neptune, Beyond Floods, Flow Flood and Aon Edge, and our flood insurance page explains the differences.

Snow, wind and long outages

Winters are long. Tamworth’s plan reports average snowfall of six and a half to eight feet a year in the 1955 to 1985 records, and much of the town took light damage in the 1998 ice storm. Wind comes in short, sharp bursts. Hurricane Gloria tracked through Tamworth in 1985 with winds near 75 miles an hour, and a 1994 macroburst in nearby Moultonborough left about 1,800 people without power. Madison’s plan describes a July 2017 microburst on East Shore Drive and Lead Mine Road that damaged several homes and power lines and left some residents without power for four to five days, and a downburst near the Town Hall in August 2020.

The Madison plan rates a long-term utility outage as a high hazard, and it notes lightning damage to electronics at the Town Hall and fire station. For a second home, those are the events that turn into frozen pipes, a failed sump or a basement full of water. Carriers like to see an automatic standby generator, low-temperature and water sensors that report by cell signal and someone local who checks the house after storms. Read our snow and ice damage article for roof loads and ice dams in more detail.

Second homes, rentals and caretakers

Seasonal use is the norm here. In Tamworth, nearly a third of homes were seasonal in 2000, and Madison lists 749 of 1,881 units as vacant. Madison’s hazard plan also notes that the town was reviewing short-term rentals. If you rent your house to skiers or summer guests, even for a few weeks, tell us at the start. Some carriers do not allow short-term rentals at all, others limit how many nights you can rent, and the liability on the home may need to be paired with an umbrella. The New Hampshire second-home page lists the vacancy and rental questions we ask.

Carriers we compare for Tamworth and Madison homes

Andover is a common choice for a lake camp or farmhouse up to about $1.5 million (about $1 million for homes in protection class 9), and Hanover writes New Hampshire homes up to $2 million. National General is also in the mix. Openly goes to $5 million for larger or custom houses, while Chubb and Cincinnati take the biggest homes without a fixed cap and can itemize art, jewelry and other collections. Collector cars and vintage boats go to Hagerty. Every carrier makes its own call on rural lots, wood heat, vacancy and rentals, and our how we choose carriers page describes the way we weigh them.

Details that speed up your quote

• Street address, plus whether the lot is on a lake, a river or in the woods
• When the house was built, its size, the roof and its age, and recent updates
• Heat source, generator, well, septic and how your alarms are monitored
• Distance to the nearest station, hydrant, pond or cistern, if you know it
• Months of use each year, any renting, and the person who looks in on it in winter
• Current declarations pages and any flood, boat, umbrella or collector car policies

Related pages for Carroll County owners

The Lakes Region high-value homes hub covers the wider area. Neighbors to the south and west read our Ossipee Lake waterfront page, our Sandwich high-value page and our Effingham agency page. For statewide coverage, visit high-value home insurance in New Hampshire, New Hampshire umbrella insurance and New Hampshire collector car insurance.

Tamworth and Madison home insurance FAQs

Sources

• Town of Madison, NH, Hazard Mitigation Plan Update 2024 (adopted December 2023)
• Town of Tamworth Master Plan, Chapter 9, Natural Hazards (2008)
• Town of Tamworth Master Plan, Chapter 14, Housing
• Town of Tamworth Master Plan, Chapter 6, Community Facilities
• Town of Tamworth Master Plan, Chapter 8, Natural Resources
• Town of Tamworth, Floodplain Development Ordinance
• Chocorua Lake Conservancy, history
• Chocorua Lake Conservancy, land conservation
• Silver Lake Association of Madison, watershed management
• NHDES, protected shoreland
• FEMA, Flood Map Service Center

About Portsmouth Atlantic Insurance

Portsmouth Atlantic Insurance is a family-owned independent agency founded in Portsmouth in 2005 and licensed in 10 states. We compare 40+ carriers, hold an A+ rating with the Better Business Bureau, and are New Hampshire’s highest-rated agency on Google, with 1,000+ Google reviews and over 2,000 testimonials (see our client feedback). Our team brings 200+ years of combined experience. We don’t charge any fees.

We serve Tamworth and Madison homeowners by phone, email and video from our office at 601 Islington St, Unit 206, Portsmouth, NH 03801. Call (603) 431-4020 to talk through your lake or mountain home.