What to Know Before Renovating a Historic Home in Connecticut

Windham and Tolland County are home to some of the most beautiful older housing stock in New England. Victorian farmhouses, Federal-style colonials, Greek Revival capes — these homes were built to last, and many of them have. But renovating a home built in the 18th or 19th century is a fundamentally different project than renovating a house built in 1985.

Here is what we have learned from years of working on historic homes in Eastern Connecticut.

The first step in any historic renovation is a thorough assessment of the existing structure. This means:

• Identifying the construction method — balloon framing, timber frame, or post-and-beam all behave differently and require different approaches
• Locating load-bearing walls — in older homes, these are not always where you expect them
• Assessing the condition of the foundation — many pre-1900 homes have rubble stone or brick foundations that may need stabilization
• Checking for knob-and-tube wiring and cast iron plumbing — both are common in homes of this era and both have implications for renovation scope and cost

Skipping this assessment and diving straight into demolition is one of the most common and costly mistakes we see.

Any home built before 1978 may contain lead paint. Homes built before 1940 almost certainly do. In Connecticut, contractors performing renovation work that disturbs lead paint in pre-1978 homes must be certified under the EPA's Renovation, Repair, and Painting (RRP) Rule.

This is not a technicality — lead dust is a serious health hazard, particularly for children. Make sure any contractor you hire for work on an older home is RRP-certified and follows proper containment and cleanup procedures.

Asbestos was commonly used in insulation, floor tiles, and roofing materials through the 1970s. If your renovation involves disturbing any of these materials, have them tested before work begins. Abatement must be performed by a licensed asbestos contractor.

Connecticut has a number of local historic districts, and some towns in Windham and Tolland County have their own historic preservation commissions. If your home is in a designated historic district, exterior changes — including paint color, window replacement, and additions — may require approval from the local Historic District Commission before you can pull a building permit.

Even outside of historic districts, any structural work, electrical upgrades, plumbing changes, or additions require permits from your local building department. Working without permits creates problems when you sell the home and can result in fines and required demolition of unpermitted work.

One of the most important decisions in a historic renovation is how closely to match original materials and details. This matters for two reasons:

1. Aesthetics — mismatched materials and details undermine the character that makes older homes valuable
2. Performance — original materials were often chosen for good reasons. Replacing wood windows with vinyl in a 200-year-old home, for example, can trap moisture in the wall assembly and cause rot

Where possible, we recommend:

• Repairing rather than replacing original wood windows, doors, and trim
• Matching profiles on replacement trim and molding — a router and the right bit can replicate most historic profiles
• Using appropriate exterior paints — many historic homes were painted with oil-based paints that allowed the wood to breathe; modern latex paints can trap moisture if applied over old oil paint without proper preparation

Historic renovations almost always reveal surprises once walls are opened. Rot, insect damage, outdated wiring, inadequate insulation — these are common findings in older homes, and they add cost and time to any project.

A realistic contingency budget for a historic renovation is 15–20% of the total project cost. If you are working with a contractor who does not build contingency into the conversation, that is a warning sign.

Not every contractor has experience with historic construction. The techniques, materials, and problem-solving required for a pre-1900 home are genuinely different from those needed for modern construction. Ask any contractor you are considering about their specific experience with homes of similar age and construction type.

At Sunrise Construction, historic and older home renovation is a significant part of our work in Windham and Tolland County. We understand the character of these homes and the care required to preserve it.

If you are planning a renovation on an older home in Eastern Connecticut, we would be glad to walk through the project with you. Call us at (860) 933-7626 or get in touch online.