Professional Plumbing Contractors

When looking for a plumbing contractor, you need the utmost in experience and range of skills for whichever direction your project takes. Rather than aimlessly plowing into a project, a talented plumbing contractor knows to take a methodic approach and tailor their efforts to meet the individual needs of what they’re trying to achieve. That is precisely what you can expect from the talented plumbing contractors employed by A-D Archambault.

A-D Archambault takes pride in serving as Rochester and Dover, NH’s number one plumbing contractor for light commercial and private jobs. Carrying all required certifications as well as prerequisite years of experience, employing A-D Archambault means that you have access to the most talented corps of plumbing contractors in New Hampshire. To get your job done right, at the standard that you command of your light commercial or residential project, enlist the talented plumbing contractors of A-D Archambault.

Installations and New Construction

If you’re building a new home, remodeling a kitchen or bath, or just installing a new sink or disposal, we can take care of all your plumbing needs. A-D Archambault guarantees that we install the finest, most dependable, energy efficient systems and parts.  In addition, we can customize any project to meet your specifications.

Residential Plumbing

If there’s a plumbing problem in your home, we can fix it. There’s a long list of things that can go wrong in any home—leaky toilets, hot water heaters that don’t work, clogged pipes, septic problems, low water pressure. We’ve seen just about everything and know how to repair it all. Our trained technicians are competent, thorough, honest, courteous, and can provide you with an up front price before any work is started.

Commercial Plumbing

IMPORTANT: A-D Archambault can be a very valuable asset to you on a commercial project. Besides new construction, we do rehabilitation and converted use projects, and enjoy the challenge of difficult assignments.

Just a few of many commercial plumbing needs we handle include:

  • water heaters and boilers
  • backflow devices
  • pipe replacement
  • plumbing fixtures of all types and sizes
  • water and sewer lines
  • gas lines
  • grease traps
  • sump pumps


An ounce of prevention will go a long way toward keeping your home’s plumbing in top working order – and you’ll avoid costly repairs!

Faucets and Sinks

  • Even small drips can waste thousands of gallons of water, as much as 150 gallons a day! Be sure to check under sinks for moisture or small leaks. And always repair leaky faucets right away  to avoid paying for wasted water, and also to avoid water damage to your fixtures and pipes.
  • Remove and clean your faucet aerators annually to ensure an even flow of water.
  • Make sure overflow holes on tubs and vanity are clear and open to prevent water damage to floors and ceilings.


  • Toilet leaks can be wasteful and expensive. At least once a year, check your toilet for leaks by adding a small amount of red food coloring to the tank, and then check the toilet bowl later. If the toilet bowl water is colored red, water is seeping through from the tank. If it is leaking, contact a professional to check it out.


  • To help prevent clogs, fit all your tubs and shower drains with a strainer that catches hair and soap chips, and clean the strainer regularly.
  • Do not rinse fats or cooking oils down the kitchen sink. Liquid fats solidify in the cold pipes and create clogs.
  • Avoid using caustic liquid drain openers (like Drano or Liquid Plumber) on a drain that is completely clogged. The caustic ingredients are trapped in your pipes and can severely damage them. If you can’t snake the drain yourself, contact a professional to do so.

Garbage Disposal

You can extend the life of your garbage disposal by:

  • Using plenty of cold water when running it
  • Making sure you avoid overloading it
  • Never disposing of things like bones or corn husks
  • Never using a caustic drain opener