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Front, Side and Access Door Installation

New exterior doors hung plumb and square, with the sill flashed and the trim wrapped, so your entry closes tight and stays dry.

Door Installation installed by 4Ever Exteriors

Your front door gets opened thousands of times a year and takes rain, snow and road salt tracked across its threshold. Side doors and access doors into a basement or garage take even more abuse and usually get less attention. When a door starts sticking, dragging or letting in light around the edges, the problem is usually the frame and sill, not the slab.

We pull your old door and frame and look at what's under the threshold. On a lot of older houses, the sill framing has been soaking up water for years. We fix what we find, flash the opening so water gets sent back out, and hang the new unit plumb, level and square so it swings and latches without a fight.

In Ashburnham, we restored a front entry as part of a roof replacement. The door, frame and trim came back together as one finished piece. Your entry gets the same care, whether it's the front door your guests see or the side door into your mudroom that the family actually uses.

What's included

  • Removal of your old door and frame
  • Inspection of sill framing and threshold
  • Repair of rotted sill or subfloor when found
  • Sill pan and flashing at the opening
  • New door hung plumb, level and square
  • Weather barrier taped and sealed around the frame
  • Exterior trim wrapped in white aluminum
  • Adjustment so your door latches and seals on the first try

Signs it's time

  • You can see daylight around the edges of the closed door
  • Your door sticks or drags on the floor in humid weather
  • The threshold feels soft or moves when you step on it
  • Snow or rain blows in under the door during storms
  • The lock doesn't line up without pushing or lifting the door

Why we start at the threshold

The sill under an exterior door is one of the wettest spots on any house. Rain runs down the door, snow piles against it, and every winter someone tracks in slush. If that water ever got past the threshold, it went straight into the framing below. We check that framing before the new door goes in.

Then we set a sill pan and flash the opening so any water that gets past the door gets directed back outside. The weather barrier around the frame gets taped and sealed. That's the detail nobody sees once the trim goes on, and it's the part that decides whether your new door is still solid years from now.

What happens behind your door installation

You won't see most of this once the job is done. That's why we photograph it before we cover it.

  • Substrate inspected and photographed before it's covered
  • Every opening flashed so water gets directed back out
  • Seams and laps of the weather barrier taped and sealed
  • Fastening and clearances per the manufacturer's manual
  • Soffit ventilation kept open, corners and returns sealed
  • Site cleared and magnet swept at the end of every day

Popular door installation brands

These are the lines most people ask us about. Tell us which one you want and we price that exact product, line by line.

5 years on our work. In writing.

If something fails because of how we installed it, we come back and fix it at no cost. Manufacturer warranties pass straight to you.

How the warranty works

About door installation

What kinds of doors do you install?

Front entry doors, side doors and access doors such as a basement bulkhead entry or a door into your garage or mudroom. Each one gets the same process: old unit out, sill and framing checked, opening flashed, new door hung plumb and trimmed out in white aluminum wrap.

Can you replace just the door and keep the frame?

Sometimes, if your frame is square and solid. In most older Massachusetts homes, though, the frame and sill are part of the problem. A new slab in a twisted or rotted frame will still stick and leak. We'll look at yours and tell you straight which approach makes sense.

Do you match the trim on my other windows?

Yes. We wrap exterior trim in white aluminum, the same finish we use on window trim and fascia. If your windows were done by someone else, we'll look at what's there and talk through options so your entry doesn't look out of place.

What's covered if my new door has a problem?

Our 5 year workmanship warranty covers how we installed it. If your door fails because of our install, we come back and correct it at no cost. The door manufacturer's warranty on the unit passes directly to you, and we hand those documents over at the final walkthrough.

More windows & doors services

Brazilian roots.New England weather.

4Ever has Brazilian roots. The jaguar, the biggest cat in the Americas, carries that origin onto every truck, shirt and yard sign. Yellow is its coat. Black is its spots.

It stands for what we want on every wall we close: strength that holds for decades and precision you can check with a level.

  • StrengthMaterials and fastening that last decades.
  • PrecisionMeasured, flashed, taped and sealed.
  • ResilienceBuilt for wind, snow and freeze thaw.
  • TrustWritten scope and insured crews.
  • BrazilWhere the jaguar comes from.

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New England colonial home with charcoal siding, white trim and a composite deck at sunset Multifamily building in progress with 4Ever crews on site

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