
door installation in lexington, ma
Entry, storm and patio doors for Lexington's colonials, capes, mid-century moderns and historic district houses, fitted plumb to the opening and sealed for the winter. ProVia fiberglass, steel and wood.
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★★★★★5/5the short answer
A new entry door in Lexington starts at $4,830 installed for a single fiberglass door, $6,280 with one sidelight and $9,860 with two. Gliding patio doors start at $8,860 and French doors at $13,860. Wood adds $1,600 per door, steel takes $400 off, and triple insulated glass adds $450. Every price includes removal of the old door, a new pre-hung unit set plumb in the opening, insulation and flashing, hardware and the trim. Replacing a door in the same opening needs no permit in Lexington; changing the opening does, and in the historic districts a street-facing door goes to the commission first.

doors for the way lexington is built
Colonial entries with sidelights and transoms
The classic Lexington front door, on the 1920s to 50s colonials of Meriam Hill, Follen Hill and Munroe Hill and on the older houses along Massachusetts Avenue, is a six-panel door between sidelights under a transom or a fanlight. ProVia builds that unit in fiberglass with a wood-grain finish or in wood, pre-hung with the sidelights and transom as one piece, so the proportions stay right and the air seal is continuous. In the historic districts, the commission reviews the design; we prepare the application.
Mid-century moderns in Peacock Farm, Six Moon Hill and Five Fields
A flush or slab door, often with a narrow vertical light or a full-glass panel, set in a thin frame next to a glass wall. The replacement has to be plain, square-edged and the right color, in fiberglass or a flush steel door with a flat panel, and the sidelight, when there is one, is a clear fixed pane rather than a divided light. We match the sightlines so the entry still reads as part of the glass.
Patio doors onto decks and patios
Capes and colonials across Turning Mill, Countryside and North Lexington open onto a deck through a sliding door that has dragged and leaked for years. Gliding doors fit where a swing would hit furniture; French doors give the full opening and the traditional look. Both come in fiberglass, vinyl or clad wood with low-E insulated glass, and triple glass is worth the $450 on a door facing north.
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Book the free estimate. We come out, look at the whole job, and give you a written quote for the work you want done.
Call (508) 266-5411 Book a free estimatewhat makes lexington door work different
- Settled openings. Old frames are rarely plumb or square. We shim and set the new unit true inside the opening rather than forcing the opening to the door.
- Lead paint. Painted casings and jambs on pre-1978 houses are handled with lead-safe containment and cleanup by a licensed crew. Plum ProExteriors holds Massachusetts HIC registration 193823, Construction Supervisor License 115189 and Lead-Safe Renovation Contractor license LR004195.
- Rot at the sill. A door that leaked for years leaves the subsill and the bottom of the jambs soft. We open it up, replace what is rotted and flash it before the new door goes in.
- Historic review. Street-facing doors in the Battle Green, Hancock-Clarke, Munroe Tavern, East Village and Mt. Independence districts need a certificate from the Historic Districts Commission; storm doors are exempt. We prepare the application and work the commission's monthly meeting into the schedule.
- Storm doors. A full-view or ventilating storm door protects a wood entry door and adds a layer against the wind. We install them on new and existing entries.

what door installation costs in lexington
National price guides quote $1,200 to $4,500 for a front door replacement. Those figures price a slab or a stock pre-hung door at national labor rates and add the sidelights, transom, sill repair, lead-safe work, hardware and disposal as extras. Our price is complete for a Lexington opening. The calculator on this page prices your door; the free estimate confirms it.
Permits in Lexington. Replacing a door in the same opening does not need a building permit; changing the size of the opening, adding a new door or altering a load-bearing wall does. We file it with the Lexington Building Office (the Town Office Building on Massachusetts Avenue), through the town's OpenGov (ViewPoint Cloud) online permitting system, under our Construction Supervisor License, and we schedule the inspections. In the Battle Green, Hancock-Clarke, Munroe Tavern, East Village and Mt. Independence historic districts, exterior changes visible from a public way need a certificate from the Historic Districts Commission before the permit issues; the commission meets the first Thursday of the month, and we prepare the application and build the date into the schedule.
Fiberglass frame, double insulated glass, hardware, installation and project management are included.
price your doors in lexington
Door pricing depends on the style, the frame material, the glass and how many doors 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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how plum proexteriors installs a door
We measure the opening, check the sill and subframe, and write a quote that names the door, the glass, the hardware and the finish. Our entry doors are ProVia fiberglass and steel, with a lifetime manufacturer warranty and three years of Plum ProExteriors labor coverage, and Therma-Tru on request; patio doors are Andersen and Harvey. Doors arrive in three to six weeks. Installation takes most of a day for an entry with sidelights and about half a day for a single door; the house is never left open, and the old door goes out with us.
Licensed and insured: Massachusetts HIC 193823, CSL 115189, Lead-Safe Renovation Contractor LR004195. Every estimate is free.

permits in lexington: who files them and where
We pull the permit for every job that needs one and file it under our Construction Supervisor License, which makes us, not you, responsible for the inspections and the code compliance. In Lexington that means the Building Office, online, and in one of the five historic districts, the Historic Districts Commission before it.
After the work passes its final inspection, the permit is closed and the record stays with the building, which is what a buyer's inspector, a lender and a condo association look for.
what needs a permit in lexington
- A new door opening, a wider opening or a door replacing a window
- Any change to a load-bearing wall above the opening
- Street-facing doors in the five historic districts, which need a Historic Districts Commission certificate first; storm doors are exempt
- Replacing a door in the same opening needs no permit; we confirm with the Building Office when it is close
- Door work on pre-1978 houses, done by a licensed lead-safe crew with containment
Massachusetts HIC 193823, CSL 115189, Lead-Safe Renovation Contractor LR004195.
- Where
- The Lexington Building Office, the Town Office Building on Massachusetts Avenue. Phone (781) 698-4530; inspections are requested at (781) 698-4510 and scheduled for the next business day.
- How
- Residential building permits go through the town's OpenGov (ViewPoint Cloud) online permitting system; all permits are filed online.
- Fee
- Lexington calculates the building permit fee from its own permit worksheet, based on the scope and area of the work, rather than a flat rate per $1,000; a re-inspection is $50, paid in advance, and fees are tripled if work starts without a permit.
- Timing
- Lexington does not publish a standard review time for residential permits; the state code gives the building official up to 30 days. Inspections called in by 4 pm are scheduled for the next business day.
- Historic review
- Lexington has five local historic districts, Battle Green, Hancock-Clarke, Munroe Tavern, East Village and Mt. Independence, all reviewed by one Historic Districts Commission under a single set of design guidelines. Exterior features visible from a public street, way or place need a certificate before the permit issues, including siding, roofing, windows, doors and decks; in-kind repairs, storm windows and storm doors are exempt. The commission meets the first Thursday of the month. Outside the districts, the Historical Commission's demolition delay bylaw can hold a demolition permit for up to 12 months on a significant building.
frequently asked questions
Do I need a permit to replace a front door in Lexington?
Not for a same-size replacement in the existing opening. You do if the opening changes size, a new door is cut in, or a structural wall is altered, and street-facing doors in the five historic districts need a certificate from the Historic Districts Commission. We handle both.
Can you match the door on a mid-century modern?
Yes. A flush fiberglass or steel door with a flat panel, a narrow vertical light or full glass, in the right color, set to the original sightlines.
What is the best front door for a Lexington colonial?
A fiberglass six-panel door with sidelights and a multi-point lock, pre-hung as one unit. It keeps the proportions, takes the weather and is the standard tier on our price list.
How much does a new front door cost in Lexington?
From $4,830 installed for a single fiberglass door to $11,950 for a deluxe door with two sidelights. Patio doors run from $8,860 for gliding to $15,950 for deluxe French. The calculator on this page prices your choice.
How long does door installation take?
Three to six weeks for the door to arrive, plus the commission's monthly cycle in a historic district, then half a day to a full day on site.
serving lexington and the surrounding towns
We serve all of Lexington: Lexington Center, East Lexington, Follen Hill, Meriam Hill, Munroe Hill, Five Fields, Peacock Farm, Six Moon Hill, Turning Mill, Countryside and North Lexington, plus Arlington, Winchester, Bedford, Lincoln, Waltham and Belmont.
get a free door estimate in lexington
We will measure the opening, bring samples and give you a written price that includes everything.
Call (508) 266-5411 Send the estimate form




