Commercial Power Washing

GJM Construction & Maintenance specializes in commercial power washing in MA and NH

GJM Construction & Maintenance is your trusted provider of comprehensive power washing throughout Massachusetts and New Hampshire. Over time, dirt, grime and mold can build up on your exterior surfaces, resulting in an unsightly appearance that can detract from your business in two ways.

First, customers can be turned off by an unsightly exterior. They often equate the professionalism of a business with its outward appearance and may choose to go elsewhere if you can’t show them a neat façade. Secondly, a neglected exterior can lead to accelerated deterioration over time when it comes to materials like siding, concrete and pavement. Translation? You’ll be spending big bucks soon on unnecessary repairs you wouldn’t need if you had just kept up with the property to begin with.

From roofs and concrete sidewalks to parking lots and floors, GJM specializes in professional commercial power washing that peels away the layers of grime to reveal the natural beauty of your surfaces. Our technicians are highly trained in achieving the perfect blend of power washing essentials. These four basic elements must be perfectly combined to achieve a clean surface safely:

  • Water pressure
  • Water flow rate
  • Cleaning solution used
  • Temperature of water
We have been doing this for the last 20 years, so we know how to make all of these elements combine to give your exteriors that glow you probably haven’t seen in a long time. Our state-of-the-art power washing machinery can cut through the layers of grime while leaving the base material intact and damage-free.

GJM helps put your best face forward for your clients, employees and customers with the following power washing services:
  • Paint surface preparation
  • Removal of lime, scale and calcium deposits
  • Removal of mold and mildew
  • Commercial building exterior cleaning
  • Waste disposal
  • Parking garage floors
  • Masonry and concrete surfaces
  • Shopping mall exteriors
  • Parking lots and pavement
  • Graffiti removal
  • Event cleaning
  • Roofs
  • Sidewalks
  • Equipment
Let us help you boost your commercial property value, curb appeal, surface longevity and safety with our commercial power washing services. Sometimes you need power washing on an emergency basis, such as in the event of graffiti that pops up overnight on your retail store exterior. Other times, you simply need a seasonal cleaning of your parking lots or sidewalks to keep up with general maintenance.

Whatever the case, rely on the experts in the industry: GJM Construction & Maintenance. Call us today at
603-216-9284 to schedule your power washing appointment.


4 Windham Depot Road,
Derry, NH 03814


Phone: +1 (603) 216.9284
Fax: +1 (603) 216.9285

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