These are services that we provide in Nashua, NH


  • Vinyl Siding Installation
  • Replacement Window Installation
  • Exterior Door Installation


Why Your Home Needs Insulated Vinyl Siding

Are you looking for a way to improve the appearance of yourOff white vinyl siding installed on a home by O'Sullivan Installers from Billerica MA home's exterior all while saving money and improving the function of your exterior? Look no further than vinyl siding. This is the number one form of cladding in the US. When considering air leakage accounts for up to 30 percent of a New Hampshire home's heating and air-conditioning costs, insulated vinyl siding is it clear solution.

Insulated siding is made to reduce energy consumption while increasing the insulation value of the walls. It also improves the home's stability as well as its curb appeal. Insulated vinyl siding also acts as a noise barrier to protect against external sounds.


The Durability of Insulated Vinyl Siding

Conventional siding is hollow and can be damaged by rain hail or even a flying baseball. Insulated vinyl siding can give five times more impact resistance over hollow type siding. Insulated vinyl siding also comes in an array of colors and it requires very little or no maintenance at all.

Insulated siding is better at protecting against weather elements and sounds than traditional siding is. It is also made with a rigid foam backing which can wield a straighter and cleaner exterior appearance and allows the material to lay flat.


Door Replacement Company in Nashua, NH

O Sullivan Installs is the service to call when you need to replaceExterior Door installed on a home in Nashua NH the door on your New Hampshire’s home. There are many reasons homeowners need to replace their exterior doors including that of aesthetics and security. You might also want to replace your door to allow more light in the home. Whatever your reason is we offer many quality replacement doors from the best names in manufacturing. We evening carry top-of-the-line ProVia.

When it comes to door installations, we provide services to these types:

  • Wood clad doors
  • Steel exterior doors
  • Fiberglass exterior doors
  • Aluminum exterior doors
  • Patio doors
  • Storm doors
  • Interior doors

Replacing Your Doors is Easier with O'Sullivan Installs

We have been replacing doors on Massachusetts and New Hampshire houses and businesses for more than 20 years. You know you can trust us to provide excellent door replacement products as well as excellent installation services.

When you choose a replacement door with us expect the installation to go quick and smooth.

We take care of every single aspect of the job and can even handle the following:

  • Sliding window installation
  • Picture window installs
  • Light sliding Installation
  • Double hung window installation
  • Casement window installation
  • Bay or Bow window installations

New Hampshire and Massachusetts Expert Window Replacement and Installations

There is no window replacement or installation company in Hillsborough or Rockingham counties that can give you a better window or window installation. Our emphasis is on quality. When you hire us to install your replacement windows you have hired a company that takes great pride in the work that is done.


Prevent Exterior Elements from Entering the Home's Interior

Replacement windows are a great barrier to protectWindows Installed by O'Sullivan Installs your home against external elements. They offer an extra level of moisture protection which keeps rain or humidity out of the house. Those will also reinforce the home against strong winds.

Many window manufacturers give customers a variety of glass options. Low-E glass will reduce the amount of ultraviolet light that gets into the house. There is also gas fills and heated mirror glass. Glass fills have added installation because of argon and krypton within its panes.

Heated mirrors make use of peak film that is installed between the two window panes. This film will filter out nearly 100 percent of UV rays. If your home experiences harsh weather conditions, composite window replacements are an excellent option for you. There exterior is made of weather resistant vinyl and aluminum making them hold up against air and water.


Free, No-Obligation Consultations in Massachusetts

Get a Free Exterior Door Consultation Today!


Call Today (978) 362-2396



We are currently serving:
Nashua, Hollis, Amherst, Merrimack, Litchfield, and Hudson.