historic window replacement in massachusetts
What a historic district commission will and will not approve, the products that pass, the storm-window alternative, and what it costs to replace the windows on an old Massachusetts house without losing the house.
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★★★★★5/5the short answer
If your house is in a local historic district, a landmark, or in a neighborhood conservation district, replacing windows that can be seen from the street needs a certificate from the local commission before the building permit issues. The commissions follow the same principle: repair the original windows where they can be repaired, and where they cannot, replace them with units that match the original material, sash configuration, muntin pattern and sightlines. In practice that means wood or clad wood windows with simulated divided lites and dark spacer bars pass, vinyl on a street elevation does not, and a restored original sash with a good storm window is always acceptable. Outside the districts, which is most of every town, none of this applies and the decision is yours. Our wood windows start at $1,560 installed; the page below walks through how the review works and how to get through it the first time.
how historic review works
Who reviews and what
Local historic district commissions act under Chapter 40C of the state law, and a few cities under their own acts. They review exterior architectural features visible from a public street, way, park or body of water. Windows on the rear or a side not visible from the street are usually outside their jurisdiction, and many commissions issue a staff certificate for exact in-kind replacement without a hearing. Storm windows, paint color and ordinary repairs are exempt almost everywhere.
The standard they apply
The commissions lean on the Secretary of the Interior's Standards and the National Park Service's Preservation Brief 9 on wooden windows: retain and repair where feasible, and replace only where deterioration is beyond repair, with a new window that matches the old in material, dimensions, pane configuration, muntin profile and glass area. Arlington's guidelines put it in one line: existing historic wood windows shall be repaired, not replaced. Cambridge and Brookline say the same in more words.
What the application needs
A numbered photo survey of every window on each elevation, close-ups of the deteriorated sashes and sills, a condition note explaining why repair is not practical, and the manufacturer's cut sheets showing the frame depth, meeting rail, muntin width and exterior profile of the proposed unit. Commissions meet monthly and have 45 to 60 days to decide, so the review adds a month or two to the schedule.
What gets approved
Wood or aluminum-clad wood windows that match the original configuration; simulated divided lites with permanently applied exterior and interior muntins no wider than 7/8 inch and a dark internal spacer bar; putty-profile exterior glazing beads on the better lines. What gets refused: vinyl and vinyl-clad sash on a visible elevation, snap-in or between-the-glass grilles, a two-over-two where the original was six-over-six, and a frame that shrinks the glass area.
the four options a commission will consider
- Restore and add a storm window. The original sashes are reglazed, weatherstripped and rehung, with a low-E exterior or interior storm. This keeps the house's fabric, is always approved, and the NPS field data shows a restored single-pane window with a good storm performs close to a new double-pane unit on air leakage and heat loss.
- Sash replacement kit. New double-glazed wood sashes on jamb liners inside the original frame and casing. Approved where the frame is sound and the new sash matches the old profile.
- Insert replacement. A complete new unit set inside the existing frame, which keeps the interior and exterior casing. Approved where the product matches and the glass loss is small; refused where the insert frame visibly narrows the glass.
- Full-frame replacement. The old window comes out to the rough opening and a new clad wood unit with new exterior trim goes in. Approved for rotted frames and for houses where the existing windows are already non-original replacements.
not sure what your commission will accept?
Book the free window survey. We photograph and number every window, tell you which can be repaired and which need replacing, and bring the cut sheets the commission asks for.
Call (508) 266-5411 Book a free estimatewhat historic window replacement costs
On a historic elevation the choice is usually wood or clad wood, at $1,560 to $2,110 per window installed, or fiberglass at $1,210 to $1,680 where the commission accepts it on a side elevation. Insert replacement adds $250 per window. Simulated divided lites, custom colors and putty-profile glazing are priced per window on the estimate because they vary by manufacturer and pattern. Mass Save does not rebate replacement windows, but its 0 percent HEAT Loan covers ENERGY STAR windows up to $25,000 after a home energy assessment, and the federal 25C credit returns 30 percent of the window cost up to $600 a year on ENERGY STAR Most Efficient units. The calculator on this page prices the windows; the estimate adds the historic details.
Permits. Historic review comes first, then the building permit, which is required for full-frame replacement and any change to an opening and, in most towns, for same-size inserts as well. Designated historic buildings are exempt from the energy code's U-factor requirement where meeting it would alter the historic character, which is what makes a restored single-pane window with a storm a legal option. Our window permit guide covers the permit side town by town.
Double insulated low-E glass, installation and project management are included.
price your windows
Window pricing depends on the frame material, the installation type, the style, the glass and how many windows you are replacing. Answer a few questions for a standard, premium and deluxe range in seconds. Every project is quoted after we visit, and financing is available on every service we offer.
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windows built for historic houses
We install Andersen's 400 Series Woodwright, a wood double-hung with the proportions of a 19th century sash and a composite exterior that does not need paint, and Andersen E-Series clad wood with true or simulated divided lites and custom colors. Marvin's Ultimate and Signature lines add narrow sightlines, deep sash profiles and 7/8-inch SDL with dark spacers, and are often the answer when a commission is strict. Pella Reserve Traditional, with its putty-profile glazing and through-stile construction, is available on request. Harvey's Majesty clad wood line covers the simpler colonials. We bring the cut sheets the commission asks for to the first meeting.
how plum proexteriors handles a historic window job
We survey every window, photograph and number them, and tell you which ones can be repaired, which take an insert and which need full-frame work. We prepare the commission application with the drawings and cut sheets, attend the hearing, then file the building permit. Pre-1978 houses, which is every historic house, are done under lead-safe rules with containment and cleanup by our licensed crew. Plum ProExteriors holds Massachusetts HIC registration 193823, Construction Supervisor License 115189 and Lead-Safe Renovation Contractor license LR004195. Plum ProExteriors is an Andersen Certified Contractor and a Harvey Elite dealer, and historic home remodeling is a core part of our work in Cambridge, Brookline, Newton, Lexington and Wellesley.
Licensed and insured: Massachusetts HIC 193823, CSL 115189, Lead-Safe Renovation Contractor LR004195. Every estimate is free.
frequently asked questions
Can I put vinyl windows on a house in a historic district?
Not on an elevation visible from the street in almost any Massachusetts district. On the rear or a hidden side, many commissions have no jurisdiction and some allow it. Wood or clad wood with simulated divided lites is the product that passes.
Do I need approval for storm windows?
No. Storm windows and storm doors are exempt from review in every local district we work in, which is why restoring the original sash and adding a storm is the simplest route through.
How long does historic review take?
Commissions meet monthly and have 45 to 60 days by law to decide. Plan on one to two months before the permit, plus four to six weeks for the windows to be built.
Will new windows match the old ones?
With the right product, yes: same configuration, muntin pattern and sightlines, with permanently applied muntins and a dark spacer bar. We bring samples and cut sheets so you and the commission can see it before anything is ordered.
What if the commission says repair instead of replace?
Then repair is the answer for those windows, and we tell you honestly which ones are worth it. Full-frame replacement is approved for frames that are rotted beyond repair and for windows that were already replaced once.
get a free window survey on your historic house
We will tell you which windows can be repaired, which need replacing, what the commission will accept, and what it costs.
Call (508) 266-5411 Send the estimate form